21c1b0740fb8e13a15ad3c2f26b37e0093d9acd4d426bd3661d99a4996077f4a

Analysis

max time kernel
142s
max time network
128s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
22-03-2023 16:19

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General

Target

Remittance Advice.rtf
Size

31KB
MD5

f8787a0e6b80b20bb6da5bf6def1b828
SHA1

2df604286909d6842c8506333db9ffc75b97753b
SHA256

21c1b0740fb8e13a15ad3c2f26b37e0093d9acd4d426bd3661d99a4996077f4a
SHA512

c8d3f9d09a03ee2cf92fb38d398280e29018262aef3da4af41440773826d43ffbda9bc52e8e0ab4ff5187c07f9f522ad2fda06551eba693c04cad2d0a464dc3c
SSDEEP

768:kFx0XaIsnPRIa4fwJMtNqnNYUFlH3sL9gJnPqZxzZLK/PS:kf0Xvx3EMt8u0dcbleq

Score

1^/10

Malware Config

Signatures

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

4572 WINWORD.EXE
4572 WINWORD.EXE
Suspicious use of SetWindowsHookEx 8 IoCs

Processes:

WINWORD.EXE

pid process

4572 WINWORD.EXE
4572 WINWORD.EXE
4572 WINWORD.EXE
4572 WINWORD.EXE
4572 WINWORD.EXE
4572 WINWORD.EXE
4572 WINWORD.EXE
4572 WINWORD.EXE

pid	process
4572	WINWORD.EXE
4572	WINWORD.EXE

pid	process
4572	WINWORD.EXE
4572	WINWORD.EXE
4572	WINWORD.EXE
4572	WINWORD.EXE
4572	WINWORD.EXE
4572	WINWORD.EXE
4572	WINWORD.EXE
4572	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\Remittance Advice.rtf" /o ""
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:4572

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/4572-133-0x00007FF82D290000-0x00007FF82D2A0000-memory.dmp

Filesize
64KB

Download
memory/4572-134-0x00007FF82D290000-0x00007FF82D2A0000-memory.dmp

Filesize
64KB

Download
memory/4572-135-0x00007FF82D290000-0x00007FF82D2A0000-memory.dmp

Filesize
64KB

Download
memory/4572-136-0x00007FF82D290000-0x00007FF82D2A0000-memory.dmp

Filesize
64KB

Download
memory/4572-137-0x00007FF82D290000-0x00007FF82D2A0000-memory.dmp

Filesize
64KB

Download
memory/4572-138-0x00007FF82AB60000-0x00007FF82AB70000-memory.dmp

Filesize
64KB

Download
memory/4572-139-0x00007FF82AB60000-0x00007FF82AB70000-memory.dmp

Filesize
64KB

Download
memory/4572-170-0x00007FF82D290000-0x00007FF82D2A0000-memory.dmp

Filesize
64KB

Download
memory/4572-171-0x00007FF82D290000-0x00007FF82D2A0000-memory.dmp

Filesize
64KB

Download
memory/4572-173-0x00007FF82D290000-0x00007FF82D2A0000-memory.dmp

Filesize
64KB

Download
memory/4572-172-0x00007FF82D290000-0x00007FF82D2A0000-memory.dmp

Filesize
64KB

Download