133eaec108dcdf485a65616e0b26d8ffe1781e795b49bef6021c51679bf92c7a

General

Target

legal agreement-06.28.2021.doc
Size

50KB
MD5

ffad9afed8f30d780cac0808da1c5d3f
SHA1

b838575fe38390f411e85505607023b6764101a1
SHA256

133eaec108dcdf485a65616e0b26d8ffe1781e795b49bef6021c51679bf92c7a
SHA512

91823ef5ca872eb7dd93b5419de870aaa4e44086b5f0adbb277d2c08d40536146a71378cce8600af82880d5771d6311ce0b9e227795270ac1f83a1c5352b30e0

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	3916	656	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

1868 396 WerFault.exe mshta.exe

pid	pid_target	process	target process
1868	396	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 opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	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

656 WINWORD.EXE
656 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
1868	WerFault.exe
1868	WerFault.exe
1868	WerFault.exe
1868	WerFault.exe
1868	WerFault.exe
1868	WerFault.exe
1868	WerFault.exe
1868	WerFault.exe
1868	WerFault.exe
1868	WerFault.exe
1868	WerFault.exe
1868	WerFault.exe
1868	WerFault.exe
1868	WerFault.exe
1868	WerFault.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

WerFault.exe

description pid process

Token: SeRestorePrivilege 1868 WerFault.exe
Token: SeBackupPrivilege 1868 WerFault.exe
Token: SeDebugPrivilege 1868 WerFault.exe

description	pid	process
Token: SeRestorePrivilege	1868	WerFault.exe
Token: SeBackupPrivilege	1868	WerFault.exe
Token: SeDebugPrivilege	1868	WerFault.exe

Suspicious use of SetWindowsHookEx 27 IoCs

Processes:

WINWORD.EXE

pid	process
656	WINWORD.EXE
656	WINWORD.EXE
656	WINWORD.EXE
656	WINWORD.EXE
656	WINWORD.EXE
656	WINWORD.EXE
656	WINWORD.EXE
656	WINWORD.EXE
656	WINWORD.EXE
656	WINWORD.EXE
656	WINWORD.EXE
656	WINWORD.EXE
656	WINWORD.EXE
656	WINWORD.EXE
656	WINWORD.EXE
656	WINWORD.EXE
656	WINWORD.EXE
656	WINWORD.EXE
656	WINWORD.EXE
656	WINWORD.EXE
656	WINWORD.EXE
656	WINWORD.EXE
656	WINWORD.EXE
656	WINWORD.EXE
656	WINWORD.EXE
656	WINWORD.EXE
656	WINWORD.EXE

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

WINWORD.EXEcmd.exe

description	pid	process	target process
PID 656 wrote to memory of 3916	656	WINWORD.EXE	cmd.exe
PID 656 wrote to memory of 3916	656	WINWORD.EXE	cmd.exe
PID 3916 wrote to memory of 396	3916	cmd.exe	mshta.exe
PID 3916 wrote to memory of 396	3916	cmd.exe	mshta.exe
PID 3916 wrote to memory of 396	3916	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\legal agreement-06.28.2021.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:656

C:\Windows\SYSTEM32\cmd.exe
cmd /c c:\\users\\public\\doubleBorderInt.hta
2⤵
- Process spawned unexpected child process
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:3916

C:\Windows\SysWOW64\mshta.exe
"C:\Windows\SysWOW64\mshta.exe" "C:\users\public\doubleBorderInt.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}
3⤵
PID:396

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 396 -s 1320
4⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1868

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

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Downloads

C:\users\public\doubleBorderInt.hta
MD5
a27bc3fd105fca9661e54e0d9b38ebe0

SHA1
23dabd40d9a90ead8bfbc1b1b56b7ab712460a7d

SHA256
b3be02abef98fd6bde2752217b996cb0ab6ea534be8aadb9440474e1088a90af

SHA512
481068bef5774b26198b3799cfc2f4b0b6d763353ad118e7eb59584b190dfda75bca619f9a38ba611e311b2e4589cd78215f8044c24b756b459e337b6fc4b4ba

Download Submit
memory/396-181-0x0000000000000000-mapping.dmp

Download
memory/656-114-0x00007FFA59300000-0x00007FFA59310000-memory.dmp

Filesize
64KB

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memory/656-115-0x00007FFA59300000-0x00007FFA59310000-memory.dmp

Filesize
64KB

Download
memory/656-116-0x00007FFA59300000-0x00007FFA59310000-memory.dmp

Filesize
64KB

Download
memory/656-117-0x00007FFA59300000-0x00007FFA59310000-memory.dmp

Filesize
64KB

Download
memory/656-119-0x00007FFA59300000-0x00007FFA59310000-memory.dmp

Filesize
64KB

Download
memory/656-118-0x00007FFA7A870000-0x00007FFA7D393000-memory.dmp

Filesize
43.1MB

Download
memory/656-122-0x00007FFA74700000-0x00007FFA757EE000-memory.dmp

Filesize
16.9MB

Download
memory/656-123-0x00007FFA72800000-0x00007FFA746F5000-memory.dmp

Filesize
31.0MB

Download
memory/3916-179-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads