Summary | ZeroBOX

Category	Machine	Started	Completed
FILE	s1_win7_x6401	Oct. 12, 2024, 6:41 p.m.	Oct. 12, 2024, 6:53 p.m.

Size	577.9KB
Type	PE32 executable (GUI) Intel 80386, for MS Windows
MD5	`ff10eb7cecfd39dc309ed6cdda706f57`
SHA256	`a460c28ef668daa443793a4a85494c0cd7da29f8a4148581515dc786d6fe4789`
CRC32	`D28601C3`
ssdeep	`12288:xgEqNf5/1OXB1m15p6GsfTLgIRiA5GYNBA:Pq5wB1m15p6RLg6iA07`
Yara	Malicious_Library_Zero - Malicious_Library PE_Header_Zero - PE File Signature IsPE32 - (no description) Generic_Malware_Zero - Generic Malware UPX_Zero - UPX packed file OS_Processor_Check_Zero - OS Processor Check

0a839761915d.exe "C:\Users\test22\AppData\Local\Temp\0a839761915d.exe"
2548
- 0a839761915d.exe "C:\Users\test22\AppData\Local\Temp\0a839761915d.exe"
  2652

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

One or more processes crashed (1 event)

Time & API	Arguments	Status	Return	Repeated
__exception__ Oct. 12, 2024, 6:41 p.m.	stacktrace: 0a839761915d+0x6b6c @ 0x1306b6c BaseThreadInitThunk+0x12 VerifyConsoleIoHandle-0xb3 kernel32+0x133ca @ 0x755c33ca RtlInitializeExceptionChain+0x63 RtlAllocateActivationContextStack-0xa1 ntdll+0x39ed2 @ 0x76f49ed2 RtlInitializeExceptionChain+0x36 RtlAllocateActivationContextStack-0xce ntdll+0x39ea5 @ 0x76f49ea5 exception.instruction_r: 00 54 00 5c 00 46 00 72 00 61 00 6d 00 65 00 77 exception.symbol: 0a839761915d+0x86e00 exception.instruction: add byte ptr [eax + eax + 0x5c], dl exception.module: 0a839761915d.exe exception.exception_code: 0xc0000005 exception.offset: 552448 exception.address: 0x1386e00 registers.esp: 3472708 registers.edi: 4248464 registers.eax: 1 registers.ebp: 3472788 registers.edx: 2130566132 registers.ebx: 56 registers.esi: 2228224 registers.ecx: 2114125824	1	0	0

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) (1 event)

Time & API	Arguments	Status	Return	Repeated
NtProtectVirtualMemory Oct. 12, 2024, 6:41 p.m.	process_identifier: 2548 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x01386000 process_handle: 0xffffffff	1	0	0

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

section

{u'size_of_data': u'0x00059400', u'virtual_address': u'0x0002e000', u'entropy': 7.9932389022165085, u'name': u'.data', u'virtual_size': u'0x0005a354'}

entropy

7.99323890222

description

A section with a high entropy has been found

entropy

0.664186046512

description

Overall entropy of this PE file is high

Yara rule detected in process memory (9 events)

description	Take ScreenShot	rule	ScreenShot
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	ThreadControl__Context
description	(no description)	rule	SEH__vectored
description	Checks if being debugged	rule	anti_dbg
description	Bypass DEP	rule	disable_dep

Allocates execute permission to another process indicative of possible code injection (1 event)

Time & API	Arguments	Status	Return	Repeated
NtAllocateVirtualMemory Oct. 12, 2024, 6:41 p.m.	process_identifier: 2652 region_size: 409600 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00400000 allocation_type: 12288 (MEM_COMMIT\|MEM_RESERVE) process_handle: 0x0000003c	1	0	0

Potential code injection by writing to the memory of another process (2 events)

Time & API	Arguments	Status	Return	Repeated
WriteProcessMemory Oct. 12, 2024, 6:41 p.m.	buffer: MZx@xº´ Í!¸LÍ!This program cannot be run in DOS mode.$PELGðÿfà¢ØÓ@@@åðlHÌæ´.text#¡¢ `.rdata*À,¦@@.dataèôðbÒ@À.reloclHðJ4@B base_address: 0x00400000 process_identifier: 2652 process_handle: 0x0000003c	1	1	0
WriteProcessMemory Oct. 12, 2024, 6:41 p.m.	buffer: @ base_address: 0x7efde008 process_identifier: 2652 process_handle: 0x0000003c	1	1	0

Code injection by writing an executable or DLL to the memory of another process (1 event)

Time & API	Arguments	Status	Return	Repeated
WriteProcessMemory Oct. 12, 2024, 6:41 p.m.	buffer: MZx@xº´ Í!¸LÍ!This program cannot be run in DOS mode.$PELGðÿfà¢ØÓ@@@åðlHÌæ´.text#¡¢ `.rdata*À,¦@@.dataèôðbÒ@À.reloclHðJ4@B base_address: 0x00400000 process_identifier: 2652 process_handle: 0x0000003c	1	1	0

Used NtSetContextThread to modify a thread in a remote process indicative of process injection (2 events)

Time & API	Arguments	Status	Return	Repeated
Process injection	Process 2548 called NtSetContextThread to modify thread in remote process 2652
NtSetContextThread Oct. 12, 2024, 6:41 p.m.	registers.eip: 1995571652 registers.esp: 3996356 registers.edi: 0 registers.eax: 4248464 registers.ebp: 0 registers.edx: 0 registers.ebx: 2130567168 registers.esi: 0 registers.ecx: 0 thread_handle: 0x00000038 process_identifier: 2652	1	0	0

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

Time & API	Arguments	Status	Return	Repeated
Process injection	Process 2548 resumed a thread in remote process 2652
NtResumeThread Oct. 12, 2024, 6:41 p.m.	thread_handle: 0x00000038 suspend_count: 1 process_identifier: 2652	1	0	0

Executed a process and injected code into it, probably while unpacking (11 events)

Time & API	Arguments	Status	Return
CreateProcessInternalW Oct. 12, 2024, 6:41 p.m.	thread_identifier: 2656 thread_handle: 0x00000038 process_identifier: 2652 current_directory: filepath: C:\Users\test22\AppData\Local\Temp\0a839761915d.exe track: 1 command_line: filepath_r: C:\Users\test22\AppData\Local\Temp\0a839761915d.exe stack_pivoted: 0 creation_flags: 4 (CREATE_SUSPENDED) inherit_handles: 0 process_handle: 0x0000003c	1	1
NtGetContextThread Oct. 12, 2024, 6:41 p.m.	thread_handle: 0x00000038	1	0
NtAllocateVirtualMemory Oct. 12, 2024, 6:41 p.m.	process_identifier: 2652 region_size: 409600 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00400000 allocation_type: 12288 (MEM_COMMIT\|MEM_RESERVE) process_handle: 0x0000003c	1	0
WriteProcessMemory Oct. 12, 2024, 6:41 p.m.	buffer: MZx@xº´ Í!¸LÍ!This program cannot be run in DOS mode.$PELGðÿfà¢ØÓ@@@åðlHÌæ´.text#¡¢ `.rdata*À,¦@@.dataèôðbÒ@À.reloclHðJ4@B base_address: 0x00400000 process_identifier: 2652 process_handle: 0x0000003c	1	1
WriteProcessMemory Oct. 12, 2024, 6:41 p.m.	buffer: base_address: 0x00401000 process_identifier: 2652 process_handle: 0x0000003c	1	1
WriteProcessMemory Oct. 12, 2024, 6:41 p.m.	buffer: base_address: 0x0044c000 process_identifier: 2652 process_handle: 0x0000003c	1	1
WriteProcessMemory Oct. 12, 2024, 6:41 p.m.	buffer: base_address: 0x0044f000 process_identifier: 2652 process_handle: 0x0000003c	1	1
WriteProcessMemory Oct. 12, 2024, 6:41 p.m.	buffer: base_address: 0x0045f000 process_identifier: 2652 process_handle: 0x0000003c	1	1
WriteProcessMemory Oct. 12, 2024, 6:41 p.m.	buffer: @ base_address: 0x7efde008 process_identifier: 2652 process_handle: 0x0000003c	1	1
NtSetContextThread Oct. 12, 2024, 6:41 p.m.	registers.eip: 1995571652 registers.esp: 3996356 registers.edi: 0 registers.eax: 4248464 registers.ebp: 0 registers.edx: 0 registers.ebx: 2130567168 registers.esi: 0 registers.ecx: 0 thread_handle: 0x00000038 process_identifier: 2652	1	0
NtResumeThread Oct. 12, 2024, 6:41 p.m.	thread_handle: 0x00000038 suspend_count: 1 process_identifier: 2652	1	0

0a839761915d.exe

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