6f1eadba6e73d7451a46ae74d2dc9e7d31c9d119e739c44c35e7fbef7e121c69

Analysis

max time kernel
139s
max time network
146s
platform
windows10_x64
resource
win10v20201028
submitted
25-01-2021 17:54

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General

Target

$RY22222G17222222222M9.doc
Size

399KB
MD5

908cb0ed7bdd34f4712318c8f2c75020
SHA1

acadaf2905c51eeff68ae9f4e9e15b1d29848de4
SHA256

6f1eadba6e73d7451a46ae74d2dc9e7d31c9d119e739c44c35e7fbef7e121c69
SHA512

dc297307efd3675fe6e4ecf930291b7d844ed700465d4072b62cb8e3b821989a7c2ecb9497a1c422beea4b7f132f74c61853fa62c7311e14b5b1e980b30ee7ba

Score

5^/10

ransomware

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
ransomware

System Information Discovery
T1082

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
576	WINWORD.EXE
576	WINWORD.EXE

Suspicious use of SetWindowsHookEx 8 IoCs

Processes:

WINWORD.EXE

pid	Process
576	WINWORD.EXE
576	WINWORD.EXE
576	WINWORD.EXE
576	WINWORD.EXE
576	WINWORD.EXE
576	WINWORD.EXE
576	WINWORD.EXE
576	WINWORD.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

WINWORD.EXE

description	pid	Process	procid_target
PID 576 wrote to memory of 2440	576	WINWORD.EXE	75
PID 576 wrote to memory of 2440	576	WINWORD.EXE	75

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\$RY22222G17222222222M9.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:576
- C:\Windows\splwow64.exe
  C:\Windows\splwow64.exe 12288
  2⤵
  PID:2440

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/576-2-0x00007FFC11220000-0x00007FFC11230000-memory.dmp

Filesize
64KB

Download
memory/576-3-0x00007FFC11220000-0x00007FFC11230000-memory.dmp

Filesize
64KB

Download
memory/576-4-0x00007FFC11220000-0x00007FFC11230000-memory.dmp

Filesize
64KB

Download
memory/576-5-0x00007FFC11220000-0x00007FFC11230000-memory.dmp

Filesize
64KB

Download
memory/576-6-0x00007FFC304B0000-0x00007FFC30AE7000-memory.dmp

Filesize
6.2MB

Download
memory/2440-7-0x0000000000000000-mapping.dmp

Download
memory/2440-8-0x0000000002E20000-0x0000000002F21000-memory.dmp

Filesize
1.0MB

Download