540f3827790f6809cec591526813a664fa4e428e49271211667940a808e70614

General

Target

document.07.21.doc
Size

69KB
MD5

8198d8aad8008d4b95402f749845b7a1
SHA1

894b40166b312ba747bd379194e00fbea438168c
SHA256

540f3827790f6809cec591526813a664fa4e428e49271211667940a808e70614
SHA512

0563fa6d5382c917a2bd2e054b25dc3f555866296ab2eeffacfafcff1e93fa6d05af0cba1004759b3a6f469232433647fda8b6e5e11f57131ce8fb1f2cfb048d

Score

10^/10

Malware Config

Signatures

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

cmd.exe

description	pid	pid_target	process	target process
Parent C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE is not expected to spawn this process	2748	652	cmd.exe	WINWORD.EXE

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2272 3488 WerFault.exe mshta.exe

pid	pid_target	process	target process
2272	3488	WerFault.exe	mshta.exe

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

WINWORD.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	WINWORD.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

WINWORD.EXE

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	WINWORD.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	WINWORD.EXE

Modifies registry class 1 IoCs

Processes:

cmd.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000_Classes\Local Settings cmd.exe
Suspicious behavior: AddClipboardFormatListener 2 IoCs

Processes:

WINWORD.EXE

pid process

652 WINWORD.EXE
652 WINWORD.EXE

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000_Classes\Local Settings	cmd.exe

Suspicious behavior: EnumeratesProcesses 15 IoCs

Processes:

WerFault.exe

pid	process
2272	WerFault.exe
2272	WerFault.exe
2272	WerFault.exe
2272	WerFault.exe
2272	WerFault.exe
2272	WerFault.exe
2272	WerFault.exe
2272	WerFault.exe
2272	WerFault.exe
2272	WerFault.exe
2272	WerFault.exe
2272	WerFault.exe
2272	WerFault.exe
2272	WerFault.exe
2272	WerFault.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

WerFault.exe

description pid process

Token: SeRestorePrivilege 2272 WerFault.exe
Token: SeBackupPrivilege 2272 WerFault.exe
Token: SeDebugPrivilege 2272 WerFault.exe

description	pid	process
Token: SeRestorePrivilege	2272	WerFault.exe
Token: SeBackupPrivilege	2272	WerFault.exe
Token: SeDebugPrivilege	2272	WerFault.exe

Suspicious use of SetWindowsHookEx 16 IoCs

Processes:

WINWORD.EXE

pid	process
652	WINWORD.EXE
652	WINWORD.EXE
652	WINWORD.EXE
652	WINWORD.EXE
652	WINWORD.EXE
652	WINWORD.EXE
652	WINWORD.EXE
652	WINWORD.EXE
652	WINWORD.EXE
652	WINWORD.EXE
652	WINWORD.EXE
652	WINWORD.EXE
652	WINWORD.EXE
652	WINWORD.EXE
652	WINWORD.EXE
652	WINWORD.EXE

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

WINWORD.EXEcmd.exe

description	pid	process	target process
PID 652 wrote to memory of 2748	652	WINWORD.EXE	cmd.exe
PID 652 wrote to memory of 2748	652	WINWORD.EXE	cmd.exe
PID 2748 wrote to memory of 3488	2748	cmd.exe	mshta.exe
PID 2748 wrote to memory of 3488	2748	cmd.exe	mshta.exe
PID 2748 wrote to memory of 3488	2748	cmd.exe	mshta.exe

C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\document.07.21.doc" /o ""
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:652

C:\Windows\SYSTEM32\cmd.exe
cmd /c c:\programdata\sds.hta
2⤵
- Process spawned unexpected child process
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2748

C:\Windows\SysWOW64\mshta.exe
"C:\Windows\SysWOW64\mshta.exe" "C:\programdata\sds.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}
3⤵
PID:3488

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3488 -s 1312
4⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2272

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

3

T1082

Query Registry

2

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\programdata\sds.hta
MD5
f8f46135633afaa03568145c8d1316c4

SHA1
199c13fc844d44188a8883324c176ce422a97ca6

SHA256
83a2b8f097269bd8fb5a70725a3cbfee5308300b197368308e3a5adba849111d

SHA512
ee55ca0e35efaa1e5d6168cc0ce9f6d0315eb209eb1733c905cbe7fe98cd8511fa7f00e5155b0960b97c750c580104a11bc3fefc4bd31cfa049710aa604c13d5

Download Submit
memory/652-117-0x00007FFCEFED0000-0x00007FFCEFEE0000-memory.dmp

Filesize
64KB

Download
memory/652-347-0x00007FFCEFED0000-0x00007FFCEFEE0000-memory.dmp

Filesize
64KB

Download
memory/652-114-0x00007FFCEFED0000-0x00007FFCEFEE0000-memory.dmp

Filesize
64KB

Download
memory/652-119-0x00007FFCEFED0000-0x00007FFCEFEE0000-memory.dmp

Filesize
64KB

Download
memory/652-118-0x00007FFD10FD0000-0x00007FFD13AF3000-memory.dmp

Filesize
43.1MB

Download
memory/652-122-0x00007FFD0BE80000-0x00007FFD0CF6E000-memory.dmp

Filesize
16.9MB

Download
memory/652-123-0x00007FFD09880000-0x00007FFD0B775000-memory.dmp

Filesize
31.0MB

Download
memory/652-350-0x00007FFCEFED0000-0x00007FFCEFEE0000-memory.dmp

Filesize
64KB

Download
memory/652-115-0x00007FFCEFED0000-0x00007FFCEFEE0000-memory.dmp

Filesize
64KB

Download
memory/652-349-0x00007FFCEFED0000-0x00007FFCEFEE0000-memory.dmp

Filesize
64KB

Download
memory/652-116-0x00007FFCEFED0000-0x00007FFCEFEE0000-memory.dmp

Filesize
64KB

Download
memory/652-348-0x00007FFCEFED0000-0x00007FFCEFEE0000-memory.dmp

Filesize
64KB

Download
memory/2748-259-0x0000000000000000-mapping.dmp

Download
memory/3488-262-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads