373856a75b78406d26cfbb41cbbba7041bad1e56a3304ba17376b294bc773eee

Analysis

max time kernel
146s
max time network
140s
platform
windows10-2004_x64
resource
win10v2004-20220722-en
resource tags

arch:x64arch:x86image:win10v2004-20220722-enlocale:en-usos:windows10-2004-x64system
submitted
11-08-2022 16:02

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General

Target

cis-broadband invoice 08.11.22.docm
Size

2.2MB
MD5

91ca71d98c0e42e0446e9157fc83e1f2
SHA1

b8b01ee5940864817c670187dfc1cb9a663c79a8
SHA256

373856a75b78406d26cfbb41cbbba7041bad1e56a3304ba17376b294bc773eee
SHA512

f5ca7cb3645558bd8e390d34721ce9abfd93912c56a9470e7f2e5ebab52bcdf82c5740e90e3d0f8d0710fdc313cd9570e3fee05f897d1883af04df2773740717

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:

WerFault.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	1624	3272	WerFault.exe	WINWORD.EXE

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1624 3272 WerFault.exe WINWORD.EXE

pid	pid_target	process	target process
1624	3272	WerFault.exe	WINWORD.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

Suspicious behavior: AddClipboardFormatListener 2 IoCs

Processes:

WINWORD.EXE

pid process

3272 WINWORD.EXE
3272 WINWORD.EXE
Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

WINWORD.EXE

pid process

3272 WINWORD.EXE
3272 WINWORD.EXE
3272 WINWORD.EXE
3272 WINWORD.EXE

pid	process
3272	WINWORD.EXE
3272	WINWORD.EXE

pid	process
3272	WINWORD.EXE
3272	WINWORD.EXE
3272	WINWORD.EXE
3272	WINWORD.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\cis-broadband invoice 08.11.22.docm" /o ""
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:3272

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 3272 -s 4396
2⤵
- Process spawned unexpected child process
- Program crash
PID:1624

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -pss -s 456 -p 3272 -ip 3272
1⤵
PID:340

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/3272-132-0x00007FFDA9F10000-0x00007FFDA9F20000-memory.dmp

Filesize
64KB

Download
memory/3272-133-0x00007FFDA9F10000-0x00007FFDA9F20000-memory.dmp

Filesize
64KB

Download
memory/3272-134-0x00007FFDA9F10000-0x00007FFDA9F20000-memory.dmp

Filesize
64KB

Download
memory/3272-135-0x00007FFDA9F10000-0x00007FFDA9F20000-memory.dmp

Filesize
64KB

Download
memory/3272-136-0x00007FFDA9F10000-0x00007FFDA9F20000-memory.dmp

Filesize
64KB

Download
memory/3272-137-0x00007FFDA7EB0000-0x00007FFDA7EC0000-memory.dmp

Filesize
64KB

Download
memory/3272-138-0x00007FFDA7EB0000-0x00007FFDA7EC0000-memory.dmp

Filesize
64KB

Download
memory/3272-139-0x000001F0577E2000-0x000001F0577E4000-memory.dmp

Filesize
8KB

Download
memory/3272-140-0x000001F0577E2000-0x000001F0577E4000-memory.dmp

Filesize
8KB

Download
memory/3272-141-0x000001F05C728000-0x000001F05C90B000-memory.dmp

Filesize
1.9MB

Download
memory/3272-142-0x000001F05C350000-0x000001F05C446000-memory.dmp

Filesize
984KB

Download
memory/3272-143-0x000001F0577E2000-0x000001F0577E4000-memory.dmp

Filesize
8KB

Download