Summary | ZeroBOX

Category	Machine	Started	Completed
FILE	s1_win7_x6401	Sept. 30, 2024, 11:54 a.m.	Sept. 30, 2024, noon

Size	255.0KB
Type	PE32 executable (DLL) (GUI) Intel 80386, for MS Windows
MD5	`408cbd2f988947ba74b8b3deb531ff7c`
SHA256	`82ab4c103d39070ab26850aef58cf8c7616570ace5f6c5e847c94bee8da2b8fc`
CRC32	`7DEEF17C`
ssdeep	`6144:rnjG8uzTkT5JuHzBvG4PoXSTI6ihhglofiyLp7f:YzgT6tXQiM6ihJayLpD`
Yara	Malicious_Library_Zero - Malicious_Library PE_Header_Zero - PE File Signature IsDLL - (no description) DllRegisterServer_Zero - execute regsvr32.exe IsPE32 - (no description) UPX_Zero - UPX packed file

rundll32.exe "C:\Windows\System32\rundll32.exe" C:\Users\test22\AppData\Local\Temp\pesinislem.dll,DllCanUnloadNow
2556
rundll32.exe "C:\Windows\System32\rundll32.exe" C:\Users\test22\AppData\Local\Temp\pesinislem.dll,DllGetClassObject
2640
rundll32.exe "C:\Windows\System32\rundll32.exe" C:\Users\test22\AppData\Local\Temp\pesinislem.dll,DllRegisterServer
2736
rundll32.exe "C:\Windows\System32\rundll32.exe" C:\Users\test22\AppData\Local\Temp\pesinislem.dll,DllUnregisterServer
2824
rundll32.exe "C:\Windows\System32\rundll32.exe" C:\Users\test22\AppData\Local\Temp\pesinislem.dll,
2920

Name	Response	Post-Analysis Lookup
No hosts contacted.

IP Address	Status	Action
No hosts contacted.

Suricata Alerts

No Suricata Alerts

Suricata TLS

No Suricata TLS

Checks if process is being debugged by a debugger (4 events)

Time & API	Arguments	Status	Return	Repeated
IsDebuggerPresent Sept. 30, 2024, 11:54 a.m.			0	0
IsDebuggerPresent Sept. 30, 2024, 11:54 a.m.			0	0
IsDebuggerPresent Sept. 30, 2024, 11:54 a.m.			0	0
IsDebuggerPresent Sept. 30, 2024, 11:54 a.m.			0	0

The executable contains unknown PE section names indicative of a packer (could be a false positive) (1 event)

section

.refox

The file contains an unknown PE resource name possibly indicative of a packer (1 event)

resource name

TYPELIB

Allocates read-write-execute memory (usually to unpack itself) (36 events)

Time & API	Arguments	Status
NtProtectVirtualMemory Sept. 30, 2024, 11:54 a.m.	process_identifier: 2556 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0cff2000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Sept. 30, 2024, 11:54 a.m.	process_identifier: 2556 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x7c37a000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Sept. 30, 2024, 11:54 a.m.	process_identifier: 2556 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 8192 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0cff0000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Sept. 30, 2024, 11:54 a.m.	process_identifier: 2556 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x73660000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Sept. 30, 2024, 11:54 a.m.	process_identifier: 2556 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x735e1000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Sept. 30, 2024, 11:54 a.m.	process_identifier: 2556 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x73551000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Sept. 30, 2024, 11:54 a.m.	process_identifier: 2556 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x73514000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Sept. 30, 2024, 11:54 a.m.	process_identifier: 2556 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x735e2000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Sept. 30, 2024, 11:54 a.m.	process_identifier: 2556 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x73c11000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Sept. 30, 2024, 11:54 a.m.	process_identifier: 2640 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0cff2000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Sept. 30, 2024, 11:54 a.m.	process_identifier: 2640 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x7c37a000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Sept. 30, 2024, 11:54 a.m.	process_identifier: 2640 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 8192 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0cff0000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Sept. 30, 2024, 11:54 a.m.	process_identifier: 2640 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x73660000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Sept. 30, 2024, 11:54 a.m.	process_identifier: 2640 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x735e1000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Sept. 30, 2024, 11:54 a.m.	process_identifier: 2640 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x73551000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Sept. 30, 2024, 11:54 a.m.	process_identifier: 2640 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x73514000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Sept. 30, 2024, 11:54 a.m.	process_identifier: 2640 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x735e2000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Sept. 30, 2024, 11:54 a.m.	process_identifier: 2640 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x73c11000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Sept. 30, 2024, 11:54 a.m.	process_identifier: 2736 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0cff2000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Sept. 30, 2024, 11:54 a.m.	process_identifier: 2736 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x7c37a000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Sept. 30, 2024, 11:54 a.m.	process_identifier: 2736 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 8192 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0cff0000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Sept. 30, 2024, 11:54 a.m.	process_identifier: 2736 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x73660000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Sept. 30, 2024, 11:54 a.m.	process_identifier: 2736 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x735e1000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Sept. 30, 2024, 11:54 a.m.	process_identifier: 2736 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x73551000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Sept. 30, 2024, 11:54 a.m.	process_identifier: 2736 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x73514000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Sept. 30, 2024, 11:54 a.m.	process_identifier: 2736 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x735e2000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Sept. 30, 2024, 11:54 a.m.	process_identifier: 2736 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x73c11000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Sept. 30, 2024, 11:54 a.m.	process_identifier: 2824 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0cff2000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Sept. 30, 2024, 11:54 a.m.	process_identifier: 2824 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x7c37a000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Sept. 30, 2024, 11:54 a.m.	process_identifier: 2824 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 8192 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0cff0000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Sept. 30, 2024, 11:54 a.m.	process_identifier: 2824 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x73660000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Sept. 30, 2024, 11:54 a.m.	process_identifier: 2824 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x73bc1000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Sept. 30, 2024, 11:54 a.m.	process_identifier: 2824 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x735c1000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Sept. 30, 2024, 11:54 a.m.	process_identifier: 2824 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x73584000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Sept. 30, 2024, 11:54 a.m.	process_identifier: 2824 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x73bc2000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Sept. 30, 2024, 11:54 a.m.	process_identifier: 2824 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x73951000 process_handle: 0xffffffff	1

File has been identified by 5 AntiVirus engines on VirusTotal as malicious (5 events)

Cynet	Malicious (score: 100)
Cylance	Unsafe
APEX	Malicious
SentinelOne	Static AI - Suspicious PE
Kingsoft	malware.kb.a.992

The binary likely contains encrypted or compressed data indicative of a packer (2 events)

section

{u'size_of_data': u'0x0000d400', u'virtual_address': u'0x00019000', u'entropy': 7.990701230440836, u'name': u'.refox', u'virtual_size': u'0x0000d400'}

entropy

7.99070123044

description

A section with a high entropy has been found

entropy

0.385454545455

description

Overall entropy of this PE file is high

pesinislem.dll

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