04042893124fdbf007cfdb673ef878ac9a47f37f871c1e5322ec46945915abc1

Analysis

max time kernel
93s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20220721-en
resource tags

arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
submitted
11-08-2022 15:41

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General

Target

suddenlink.doc.08.11.22.docm
Size

2.2MB
MD5

13f0a9bd5a2a4fd90924a953eb9b1642
SHA1

bb6d3ab2c01d3058964cd6493a691ad9971307ca
SHA256

04042893124fdbf007cfdb673ef878ac9a47f37f871c1e5322ec46945915abc1
SHA512

4a5d5d80a802886231ff33a37f2bb5e319aee424fe965e69638e77491680543885514bd314e633e2be51475b5585705b0ed1d111bc4dd612d94e82f7a725fc9b

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	624	4916	WerFault.exe	WINWORD.EXE

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

624 4916 WerFault.exe WINWORD.EXE

pid	pid_target	process	target process
624	4916	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

4916 WINWORD.EXE
4916 WINWORD.EXE
Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

WINWORD.EXE

pid process

4916 WINWORD.EXE
4916 WINWORD.EXE
4916 WINWORD.EXE
4916 WINWORD.EXE

pid	process
4916	WINWORD.EXE
4916	WINWORD.EXE

pid	process
4916	WINWORD.EXE
4916	WINWORD.EXE
4916	WINWORD.EXE
4916	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\suddenlink.doc.08.11.22.docm" /o ""
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:4916

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 4916 -s 4340
2⤵
- Process spawned unexpected child process
- Program crash
PID:624

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -pss -s 400 -p 4916 -ip 4916
1⤵
PID:2732

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/4916-130-0x00007FFDF5F30000-0x00007FFDF5F40000-memory.dmp

Filesize
64KB

Download
memory/4916-131-0x00007FFDF5F30000-0x00007FFDF5F40000-memory.dmp

Filesize
64KB

Download
memory/4916-132-0x00007FFDF5F30000-0x00007FFDF5F40000-memory.dmp

Filesize
64KB

Download
memory/4916-133-0x00007FFDF5F30000-0x00007FFDF5F40000-memory.dmp

Filesize
64KB

Download
memory/4916-134-0x00007FFDF5F30000-0x00007FFDF5F40000-memory.dmp

Filesize
64KB

Download
memory/4916-135-0x00007FFDF3C30000-0x00007FFDF3C40000-memory.dmp

Filesize
64KB

Download
memory/4916-136-0x00007FFDF3C30000-0x00007FFDF3C40000-memory.dmp

Filesize
64KB

Download
memory/4916-137-0x000001C282386000-0x000001C282569000-memory.dmp

Filesize
1.9MB

Download
memory/4916-138-0x000001C281FB0000-0x000001C2820A6000-memory.dmp

Filesize
984KB

Download
memory/4916-139-0x000001C281FB0000-0x000001C2820A6000-memory.dmp

Filesize
984KB

Download