fd30487d633e742531252705f19ee8798f406368ec2a7a86e95945aa3fe64f06

Analysis

max time kernel
136s
max time network
129s
platform
windows10_x64
resource
win10v20201028
submitted
14-03-2021 20:03

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General

Target

Letter.doc
Size

39KB
MD5

1738ab0301243ed74c396ece061c019d
SHA1

3fcfc7e9c17a709e356b145154c7b3ed41682078
SHA256

fd30487d633e742531252705f19ee8798f406368ec2a7a86e95945aa3fe64f06
SHA512

39928d04766d577649df8f2a1529979364fecd34055380c16535cf3a49227532d610ac1162a87907de0a3f4360429982ab69f4dbbe691405b9e46299a3e45410

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

3980 WINWORD.EXE
3980 WINWORD.EXE
Suspicious use of SetWindowsHookEx 8 IoCs

Processes:

WINWORD.EXE

pid process

3980 WINWORD.EXE
3980 WINWORD.EXE
3980 WINWORD.EXE
3980 WINWORD.EXE
3980 WINWORD.EXE
3980 WINWORD.EXE
3980 WINWORD.EXE
3980 WINWORD.EXE

pid	process
3980	WINWORD.EXE
3980	WINWORD.EXE

pid	process
3980	WINWORD.EXE
3980	WINWORD.EXE
3980	WINWORD.EXE
3980	WINWORD.EXE
3980	WINWORD.EXE
3980	WINWORD.EXE
3980	WINWORD.EXE
3980	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\Letter.doc" /o ""
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:3980

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

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Downloads

memory/3980-2-0x00007FF8E7720000-0x00007FF8E7730000-memory.dmp

Filesize
64KB

Download
memory/3980-3-0x00007FF8E7720000-0x00007FF8E7730000-memory.dmp

Filesize
64KB

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memory/3980-4-0x00007FF8E7720000-0x00007FF8E7730000-memory.dmp

Filesize
64KB

Download
memory/3980-5-0x000001C3D9020000-0x000001C3D9657000-memory.dmp

Filesize
6.2MB

Download
memory/3980-6-0x00007FF8E7720000-0x00007FF8E7730000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads