Summary | ZeroBOX

Category	Machine	Started	Completed
FILE	s1_win7_x6401	Oct. 29, 2024, 6:48 a.m.	Oct. 29, 2024, 6:50 a.m.

Size	4.0MB
Type	PE32 executable (DLL) (GUI) Intel 80386, for MS Windows
MD5	`db5198ea4d04bad9c91dc04ba2033579`
SHA256	`1998849026d2d7f4c307bef0a8f2de606d8d4c5966d8963a2592d107be4dc15e`
CRC32	`2F335665`
ssdeep	`98304:m6h30YoT1QMYT17A8iwHbv33nnRNW3qn9wWZGPDxx+L9Vu:mkkx/Ubv3XnR069RcFxC9Vu`
Yara	Malicious_Library_Zero - Malicious_Library PE_Header_Zero - PE File Signature IsDLL - (no description) IsPE32 - (no description)

rundll32.exe "C:\Windows\System32\rundll32.exe" C:\Users\test22\AppData\Local\Temp\CShield.dll,?CheckAttackspeed@@YA_NMM_N0@Z
2548
rundll32.exe "C:\Windows\System32\rundll32.exe" C:\Users\test22\AppData\Local\Temp\CShield.dll,?CheckMovespeed@@YA_NM@Z
2636
rundll32.exe "C:\Windows\System32\rundll32.exe" C:\Users\test22\AppData\Local\Temp\CShield.dll,?GenKey@@YA?AV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@_NK@Z
2728
rundll32.exe "C:\Windows\System32\rundll32.exe" C:\Users\test22\AppData\Local\Temp\CShield.dll,?InitializeCShield@@YA?AU_CShieldData@@XZ
2816
rundll32.exe "C:\Windows\System32\rundll32.exe" C:\Users\test22\AppData\Local\Temp\CShield.dll,?charName@@3PADA
2908
rundll32.exe "C:\Windows\System32\rundll32.exe" C:\Users\test22\AppData\Local\Temp\CShield.dll,?hackFound@@3_NA
3004
rundll32.exe "C:\Windows\System32\rundll32.exe" C:\Users\test22\AppData\Local\Temp\CShield.dll,
1728

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 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 Oct. 29, 2024, 6:48 a.m.		1	1	0

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

section

.cshield

One or more processes crashed (2 events)

Time & API	Arguments	Status	Return	Repeated
__exception__ Oct. 29, 2024, 6:49 a.m.	stacktrace: CtfImeIsIME+0x36fd DllUnregisterServer-0xf9d9 msctf+0x2d08c @ 0x75aad08c TF_GetGlobalCompartment+0x3dfd CtfImeIsIME-0x344 msctf+0x2964b @ 0x75aa964b TF_GetInputScope+0xf65 CtfImeDestroyThreadMgr-0x25ae msctf+0x14d6b @ 0x75a94d6b TF_GetInputScope+0x3176 CtfImeDestroyThreadMgr-0x39d msctf+0x16f7c @ 0x75a96f7c CtfImeDestroyInputContext+0x280 TF_CanUninitialize-0x1c msctf+0x1e825 @ 0x75a9e825 TF_GetInputScope+0x21fc CtfImeDestroyThreadMgr-0x1317 msctf+0x16002 @ 0x75a96002 TF_GetInputScope+0x21e2 CtfImeDestroyThreadMgr-0x1331 msctf+0x15fe8 @ 0x75a95fe8 TF_GetInputScope+0xbdd CtfImeDestroyThreadMgr-0x2936 msctf+0x149e3 @ 0x75a949e3 TF_GetInputScope+0x1c1a CtfImeDestroyThreadMgr-0x18f9 msctf+0x15a20 @ 0x75a95a20 RtlIsCurrentThreadAttachExempt+0x5f TpCheckTerminateWorker-0x37 ntdll+0x39a91 @ 0x76f49a91 LdrShutdownProcess+0x97 RtlDetectHeapLeaks-0x1bb ntdll+0x58f10 @ 0x76f68f10 RtlExitUserProcess+0x74 LdrShutdownProcess-0x1d ntdll+0x58e5c @ 0x76f68e5c ExitProcess+0x15 TerminateThread-0xa kernel32+0x17a25 @ 0x755c7a25 rundll32+0x135c @ 0xa3135c rundll32+0x1901 @ 0xa31901 BaseThreadInitThunk+0x12 VerifyConsoleIoHandle-0xb3 kernel32+0x133ca @ 0x755c33ca RtlInitializeExceptionChain+0x63 RtlAllocateActivationContextStack-0xa1 ntdll+0x39ed2 @ 0x76f49ed2 RtlInitializeExceptionChain+0x36 RtlAllocateActivationContextStack-0xce ntdll+0x39ea5 @ 0x76f49ea5 exception.instruction_r: ff 51 0c 8b 45 fc 89 be 8c 04 00 00 3b c7 74 25 exception.symbol: TF_GetCompatibleKeyboardLayout+0x5885 TF_IsCtfmonRunning-0xfd3 msctf+0x43ef4 exception.instruction: call dword ptr [ecx + 0xc] exception.module: MSCTF.dll exception.exception_code: 0xc0000005 exception.offset: 278260 exception.address: 0x75ac3ef4 registers.esp: 1570408 registers.edi: 0 registers.eax: 10586768 registers.ebp: 1570436 registers.edx: 1 registers.ebx: 0 registers.esi: 4646016 registers.ecx: 1926837724	1	0	0
__exception__ Oct. 29, 2024, 6:48 a.m.	stacktrace: CtfImeIsIME+0x36fd DllUnregisterServer-0xf9d9 msctf+0x2d08c @ 0x75aad08c TF_GetGlobalCompartment+0x3dfd CtfImeIsIME-0x344 msctf+0x2964b @ 0x75aa964b TF_GetInputScope+0xf65 CtfImeDestroyThreadMgr-0x25ae msctf+0x14d6b @ 0x75a94d6b TF_GetInputScope+0x3176 CtfImeDestroyThreadMgr-0x39d msctf+0x16f7c @ 0x75a96f7c CtfImeDestroyInputContext+0x280 TF_CanUninitialize-0x1c msctf+0x1e825 @ 0x75a9e825 TF_GetInputScope+0x21fc CtfImeDestroyThreadMgr-0x1317 msctf+0x16002 @ 0x75a96002 TF_GetInputScope+0x21e2 CtfImeDestroyThreadMgr-0x1331 msctf+0x15fe8 @ 0x75a95fe8 TF_GetInputScope+0xbdd CtfImeDestroyThreadMgr-0x2936 msctf+0x149e3 @ 0x75a949e3 TF_GetInputScope+0x1c1a CtfImeDestroyThreadMgr-0x18f9 msctf+0x15a20 @ 0x75a95a20 RtlIsCurrentThreadAttachExempt+0x5f TpCheckTerminateWorker-0x37 ntdll+0x39a91 @ 0x76f49a91 LdrShutdownProcess+0x97 RtlDetectHeapLeaks-0x1bb ntdll+0x58f10 @ 0x76f68f10 RtlExitUserProcess+0x74 LdrShutdownProcess-0x1d ntdll+0x58e5c @ 0x76f68e5c ExitProcess+0x15 TerminateThread-0xa kernel32+0x17a25 @ 0x755c7a25 rundll32+0x135c @ 0xa3135c rundll32+0x1901 @ 0xa31901 BaseThreadInitThunk+0x12 VerifyConsoleIoHandle-0xb3 kernel32+0x133ca @ 0x755c33ca RtlInitializeExceptionChain+0x63 RtlAllocateActivationContextStack-0xa1 ntdll+0x39ed2 @ 0x76f49ed2 RtlInitializeExceptionChain+0x36 RtlAllocateActivationContextStack-0xce ntdll+0x39ea5 @ 0x76f49ea5 exception.instruction_r: ff 51 0c 8b 45 fc 89 be 8c 04 00 00 3b c7 74 25 exception.symbol: TF_GetCompatibleKeyboardLayout+0x5885 TF_IsCtfmonRunning-0xfd3 msctf+0x43ef4 exception.instruction: call dword ptr [ecx + 0xc] exception.module: MSCTF.dll exception.exception_code: 0xc0000005 exception.offset: 278260 exception.address: 0x75ac3ef4 registers.esp: 1570392 registers.edi: 0 registers.eax: 4229776 registers.ebp: 1570420 registers.edx: 1 registers.ebx: 0 registers.esi: 5301376 registers.ecx: 1932342748	1	0	0

Time & API

Arguments

Status

Return

Repeated

__exception__

Oct. 29, 2024, 6:49 a.m.

stacktrace:

CtfImeIsIME+0x36fd DllUnregisterServer-0xf9d9 msctf+0x2d08c @ 0x75aad08c
TF_GetGlobalCompartment+0x3dfd CtfImeIsIME-0x344 msctf+0x2964b @ 0x75aa964b
TF_GetInputScope+0xf65 CtfImeDestroyThreadMgr-0x25ae msctf+0x14d6b @ 0x75a94d6b
TF_GetInputScope+0x3176 CtfImeDestroyThreadMgr-0x39d msctf+0x16f7c @ 0x75a96f7c
CtfImeDestroyInputContext+0x280 TF_CanUninitialize-0x1c msctf+0x1e825 @ 0x75a9e825
TF_GetInputScope+0x21fc CtfImeDestroyThreadMgr-0x1317 msctf+0x16002 @ 0x75a96002
TF_GetInputScope+0x21e2 CtfImeDestroyThreadMgr-0x1331 msctf+0x15fe8 @ 0x75a95fe8
TF_GetInputScope+0xbdd CtfImeDestroyThreadMgr-0x2936 msctf+0x149e3 @ 0x75a949e3
TF_GetInputScope+0x1c1a CtfImeDestroyThreadMgr-0x18f9 msctf+0x15a20 @ 0x75a95a20
RtlIsCurrentThreadAttachExempt+0x5f TpCheckTerminateWorker-0x37 ntdll+0x39a91 @ 0x76f49a91
LdrShutdownProcess+0x97 RtlDetectHeapLeaks-0x1bb ntdll+0x58f10 @ 0x76f68f10
RtlExitUserProcess+0x74 LdrShutdownProcess-0x1d ntdll+0x58e5c @ 0x76f68e5c
ExitProcess+0x15 TerminateThread-0xa kernel32+0x17a25 @ 0x755c7a25
rundll32+0x135c @ 0xa3135c
rundll32+0x1901 @ 0xa31901
BaseThreadInitThunk+0x12 VerifyConsoleIoHandle-0xb3 kernel32+0x133ca @ 0x755c33ca
RtlInitializeExceptionChain+0x63 RtlAllocateActivationContextStack-0xa1 ntdll+0x39ed2 @ 0x76f49ed2
RtlInitializeExceptionChain+0x36 RtlAllocateActivationContextStack-0xce ntdll+0x39ea5 @ 0x76f49ea5

exception.instruction_r: ff 51 0c 8b 45 fc 89 be 8c 04 00 00 3b c7 74 25
exception.symbol: TF_GetCompatibleKeyboardLayout+0x5885 TF_IsCtfmonRunning-0xfd3 msctf+0x43ef4
exception.instruction: call dword ptr [ecx + 0xc]
exception.module: MSCTF.dll
exception.exception_code: 0xc0000005
exception.offset: 278260
exception.address: 0x75ac3ef4
registers.esp: 1570408
registers.edi: 0
registers.eax: 10586768
registers.ebp: 1570436
registers.edx: 1
registers.ebx: 0
registers.esi: 4646016
registers.ecx: 1926837724

__exception__

Oct. 29, 2024, 6:48 a.m.

stacktrace:

CtfImeIsIME+0x36fd DllUnregisterServer-0xf9d9 msctf+0x2d08c @ 0x75aad08c
TF_GetGlobalCompartment+0x3dfd CtfImeIsIME-0x344 msctf+0x2964b @ 0x75aa964b
TF_GetInputScope+0xf65 CtfImeDestroyThreadMgr-0x25ae msctf+0x14d6b @ 0x75a94d6b
TF_GetInputScope+0x3176 CtfImeDestroyThreadMgr-0x39d msctf+0x16f7c @ 0x75a96f7c
CtfImeDestroyInputContext+0x280 TF_CanUninitialize-0x1c msctf+0x1e825 @ 0x75a9e825
TF_GetInputScope+0x21fc CtfImeDestroyThreadMgr-0x1317 msctf+0x16002 @ 0x75a96002
TF_GetInputScope+0x21e2 CtfImeDestroyThreadMgr-0x1331 msctf+0x15fe8 @ 0x75a95fe8
TF_GetInputScope+0xbdd CtfImeDestroyThreadMgr-0x2936 msctf+0x149e3 @ 0x75a949e3
TF_GetInputScope+0x1c1a CtfImeDestroyThreadMgr-0x18f9 msctf+0x15a20 @ 0x75a95a20
RtlIsCurrentThreadAttachExempt+0x5f TpCheckTerminateWorker-0x37 ntdll+0x39a91 @ 0x76f49a91
LdrShutdownProcess+0x97 RtlDetectHeapLeaks-0x1bb ntdll+0x58f10 @ 0x76f68f10
RtlExitUserProcess+0x74 LdrShutdownProcess-0x1d ntdll+0x58e5c @ 0x76f68e5c
ExitProcess+0x15 TerminateThread-0xa kernel32+0x17a25 @ 0x755c7a25
rundll32+0x135c @ 0xa3135c
rundll32+0x1901 @ 0xa31901
BaseThreadInitThunk+0x12 VerifyConsoleIoHandle-0xb3 kernel32+0x133ca @ 0x755c33ca
RtlInitializeExceptionChain+0x63 RtlAllocateActivationContextStack-0xa1 ntdll+0x39ed2 @ 0x76f49ed2
RtlInitializeExceptionChain+0x36 RtlAllocateActivationContextStack-0xce ntdll+0x39ea5 @ 0x76f49ea5

exception.instruction_r: ff 51 0c 8b 45 fc 89 be 8c 04 00 00 3b c7 74 25
exception.symbol: TF_GetCompatibleKeyboardLayout+0x5885 TF_IsCtfmonRunning-0xfd3 msctf+0x43ef4
exception.instruction: call dword ptr [ecx + 0xc]
exception.module: MSCTF.dll
exception.exception_code: 0xc0000005
exception.offset: 278260
exception.address: 0x75ac3ef4
registers.esp: 1570392
registers.edi: 0
registers.eax: 4229776
registers.ebp: 1570420
registers.edx: 1
registers.ebx: 0
registers.esi: 5301376
registers.ecx: 1932342748

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

section

{u'size_of_data': u'0x00408000', u'virtual_address': u'0x0029e000', u'entropy': 7.916071953512583, u'name': u'.cshield', u'virtual_size': u'0x00407f50'}

entropy

7.91607195351

description

A section with a high entropy has been found

entropy

0.999394746399

description

Overall entropy of this PE file is high

CShield.dll

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