Summary | ZeroBOX

Category	Machine	Started	Completed
FILE	s1_win7_x6401	Feb. 19, 2023, 3:49 a.m.	Feb. 19, 2023, 3:50 a.m.

Size	3.5MB
Type	PE32 executable (GUI) Intel 80386, for MS Windows
MD5	`22b63909d4cc5f67c8b890492cdba72f`
SHA256	`f832cc04cb65344e3a5cd7aa9df0ccada093c57c78e5b9365c1c1b5569629f4f`
CRC32	`24583EC1`
ssdeep	`98304:w1gTJ6aVFivtFH9HbuA82Ivqih1pgchY8p:yg16wFi//82INpAU`
PDB Path	wextract.pdb
Yara	IsPE32 - (no description) Malicious_Library_Zero - Malicious_Library Win32_Trojan_Gen_1_0904B0_Zero - Win32 Trojan Emotet CAB_file_format - CAB archive file PE_Header_Zero - PE File Signature UPX_Zero - UPX packed file Win32_Trojan_Emotet_RL_Gen_Zero - Win32 Trojan Emotet

f5epi_setup.exe "C:\Users\test22\AppData\Local\Temp\f5epi_setup.exe"
2552
- cabinstaller.exe C:\Users\test22\AppData\Local\Temp\IXP000.TMP\cabinstaller.exe
  2636

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 (2 events)

Time & API	Arguments	Status	Return	Repeated
IsDebuggerPresent Feb. 19, 2023, 3:49 a.m.			0	0
IsDebuggerPresent Feb. 19, 2023, 3:49 a.m.			0	0

This executable has a PDB path (1 event)

pdb_path

wextract.pdb

Checks amount of memory in system, this can be used to detect virtual machines that have a low amount of memory available (1 event)

Time & API	Arguments	Status	Return	Repeated
GlobalMemoryStatusEx Feb. 19, 2023, 3:49 a.m.		1	1	0

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

resource name

AVI

One or more potentially interesting buffers were extracted, these generally contain injected code, configuration data, etc.

Allocates read-write-execute memory (usually to unpack itself) (24 events)

Time & API	Arguments	Status
NtProtectVirtualMemory Feb. 19, 2023, 3:49 a.m.	process_identifier: 2552 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x73921000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Feb. 19, 2023, 3:49 a.m.	process_identifier: 2552 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x72d61000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Feb. 19, 2023, 3:49 a.m.	process_identifier: 2552 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x72d24000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Feb. 19, 2023, 3:49 a.m.	process_identifier: 2552 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x72d62000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Feb. 19, 2023, 3:49 a.m.	process_identifier: 2552 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x73261000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Feb. 19, 2023, 3:49 a.m.	process_identifier: 2636 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x72d61000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Feb. 19, 2023, 3:49 a.m.	process_identifier: 2636 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x73741000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Feb. 19, 2023, 3:49 a.m.	process_identifier: 2636 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x72d24000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Feb. 19, 2023, 3:49 a.m.	process_identifier: 2636 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x72d62000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Feb. 19, 2023, 3:49 a.m.	process_identifier: 2636 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x72bf1000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Feb. 19, 2023, 3:49 a.m.	process_identifier: 2636 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x73251000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Feb. 19, 2023, 3:49 a.m.	process_identifier: 2636 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x72bc1000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Feb. 19, 2023, 3:49 a.m.	process_identifier: 2636 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x75b71000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Feb. 19, 2023, 3:49 a.m.	process_identifier: 2636 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x75bf1000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Feb. 19, 2023, 3:49 a.m.	process_identifier: 2636 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x75591000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Feb. 19, 2023, 3:49 a.m.	process_identifier: 2636 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x729f1000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Feb. 19, 2023, 3:49 a.m.	process_identifier: 2636 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x72ba1000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Feb. 19, 2023, 3:49 a.m.	process_identifier: 2636 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x75941000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Feb. 19, 2023, 3:49 a.m.	process_identifier: 2636 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x764b1000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Feb. 19, 2023, 3:49 a.m.	process_identifier: 2636 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x75831000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Feb. 19, 2023, 3:49 a.m.	process_identifier: 2636 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x729b1000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Feb. 19, 2023, 3:49 a.m.	process_identifier: 2636 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x72991000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Feb. 19, 2023, 3:49 a.m.	process_identifier: 2636 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x72911000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Feb. 19, 2023, 3:49 a.m.	process_identifier: 2636 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x72b91000 process_handle: 0xffffffff	1

Queries the disk size which could be used to detect virtual machine with small fixed size or dynamic allocation (2 events)

Time & API	Arguments	Status	Return	Repeated
GetDiskFreeSpaceW Feb. 19, 2023, 3:49 a.m.	number_of_free_clusters: 3251442 sectors_per_cluster: 8 bytes_per_sector: 512 root_path: \ total_number_of_clusters: 8362495	1	1	0
GetDiskFreeSpaceW Feb. 19, 2023, 3:49 a.m.	number_of_free_clusters: 3251442 sectors_per_cluster: 8 bytes_per_sector: 512 root_path: \ total_number_of_clusters: 8362495	1	1	0

Creates executable files on the filesystem (2 events)

file	C:\Users\test22\AppData\Local\Temp\IXP000.TMP\cabinstaller.exe
file	C:\Users\test22\AppData\Local\Temp\IXP000.TMP\uregsvr.exe

File has been identified by one AntiVirus engine on VirusTotal as malicious (1 event)

APEX

Malicious

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

section

{u'size_of_data': u'0x00370400', u'virtual_address': u'0x0000c000', u'entropy': 7.994477803959553, u'name': u'.rsrc', u'virtual_size': u'0x00371000'}

entropy

7.99447780396

description

A section with a high entropy has been found

entropy

0.989879111611

description

Overall entropy of this PE file is high

Installs itself for autorun at Windows startup (1 event)

reg_key

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0

reg_value

rundll32.exe C:\Windows\system32\advpack.dll,DelNodeRunDLL32 "C:\Users\test22\AppData\Local\Temp\IXP000.TMP\"

f5epi_setup.exe

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