a58c4256ee717337a3ea26ea01a696afb8b5c0336b36e53fa2426fa27ab3d75a

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
04-01-2023 03:38

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General

Target

a58c4256ee717337a3ea26ea01a696afb8b5c0336b36e53fa2426fa27ab3d75a.exe
Size

1.2MB
MD5

6200ef2b80c10a0894c0e7941c58aefc
SHA1

9b97cb0ca1788fff29a2a1f7563a4c3d1a5fee15
SHA256

a58c4256ee717337a3ea26ea01a696afb8b5c0336b36e53fa2426fa27ab3d75a
SHA512

a12b5605a67093dc2a470940af466aa6d82d6d116bf81d1991a2f188ed864a828b42f3561a8a74a31a0abbe3637f5113ecbbc8d3748cf87060fc37e1566665de
SSDEEP

24576:Ndw6B0HH87YdmYKEk9LC5epaKkhL3Us0oRiRaSET:jwS0VDL5epaKkhL3Us0oRiRhET

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4260	WorkinToolDataRecovery_un_asa.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	a58c4256ee717337a3ea26ea01a696afb8b5c0336b36e53fa2426fa27ab3d75a.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1268 wrote to memory of 4260	1268	a58c4256ee717337a3ea26ea01a696afb8b5c0336b36e53fa2426fa27ab3d75a.exe	81
PID 1268 wrote to memory of 4260	1268	a58c4256ee717337a3ea26ea01a696afb8b5c0336b36e53fa2426fa27ab3d75a.exe	81
PID 1268 wrote to memory of 4260	1268	a58c4256ee717337a3ea26ea01a696afb8b5c0336b36e53fa2426fa27ab3d75a.exe	81

C:\Users\Admin\AppData\Local\Temp\a58c4256ee717337a3ea26ea01a696afb8b5c0336b36e53fa2426fa27ab3d75a.exe
"C:\Users\Admin\AppData\Local\Temp\a58c4256ee717337a3ea26ea01a696afb8b5c0336b36e53fa2426fa27ab3d75a.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1268
- C:\Users\Admin\AppData\Local\Temp\~HuDunTemp.92482B06FB471E17\WorkinToolDataRecovery_un_asa.exe
  "C:\Users\Admin\AppData\Local\Temp\~HuDunTemp.92482B06FB471E17\WorkinToolDataRecovery_un_asa.exe" -instdir="Test"
  2⤵
  - Executes dropped EXE
  PID:4260

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

C:\Users\Admin\AppData\Local\Temp\~HuDunTemp.92482B06FB471E17\WorkinToolDataRecovery_un_asa.exe

Filesize
1.2MB

MD5
6200ef2b80c10a0894c0e7941c58aefc

SHA1
9b97cb0ca1788fff29a2a1f7563a4c3d1a5fee15

SHA256
a58c4256ee717337a3ea26ea01a696afb8b5c0336b36e53fa2426fa27ab3d75a

SHA512
a12b5605a67093dc2a470940af466aa6d82d6d116bf81d1991a2f188ed864a828b42f3561a8a74a31a0abbe3637f5113ecbbc8d3748cf87060fc37e1566665de

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