e6fddef9472a909f3d2276064fe315d36afd2239808b530bd66271aa8ff01d05

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
28/01/2024, 13:23

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General

Target

2024-01-28_303413e64f73167b8d17fd0fb11fc180_cryptolocker.exe
Size

68KB
MD5

303413e64f73167b8d17fd0fb11fc180
SHA1

f6319d159083b3bf475980b8b3acb676dcaaa04e
SHA256

e6fddef9472a909f3d2276064fe315d36afd2239808b530bd66271aa8ff01d05
SHA512

c272a5d473848638e69f508fb64fc2c1987fc393bb823a665d11ad37c4a8b46df02b10731d87713a0d91d3e5348cf25a14119c8538bd0dbf2db1788322293376
SSDEEP

1536:Dk/xY0sllyGQMOtEvwDpjwycDtKkQZQRKb61vSbgZ3QzNKUQ:DW60sllyWOtEvwDpjwF85K

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 3 IoCs

resource	yara_rule
behavioral2/memory/1368-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x00070000000231e5-13.dat	CryptoLocker_rule2
behavioral2/memory/1368-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 3 IoCs

resource	yara_rule
behavioral2/memory/1368-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x00070000000231e5-13.dat	CryptoLocker_set1
behavioral2/memory/1368-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

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-1-5-21-983843758-932321429-1636175382-1000\Control Panel\International\Geo\Nation	2024-01-28_303413e64f73167b8d17fd0fb11fc180_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1060	asih.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1368 wrote to memory of 1060	1368	2024-01-28_303413e64f73167b8d17fd0fb11fc180_cryptolocker.exe	84
PID 1368 wrote to memory of 1060	1368	2024-01-28_303413e64f73167b8d17fd0fb11fc180_cryptolocker.exe	84
PID 1368 wrote to memory of 1060	1368	2024-01-28_303413e64f73167b8d17fd0fb11fc180_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-01-28_303413e64f73167b8d17fd0fb11fc180_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-28_303413e64f73167b8d17fd0fb11fc180_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1368
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1060

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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\asih.exe

Filesize
68KB

MD5
3d4018aa72267337ba58cd82fd63161f

SHA1
30fcb7f591fe7c22dc2ca875f1a349523fe41c2c

SHA256
ff04a598875093fab60e060c161c156029133a0418dfc88578d65c3c453d355f

SHA512
f9903ff533633e8b304b18b11361b9641493a95fbf23383772df03efdf01e147d24270a7d2086bd46e438e67ab0dbf29a1cf09e16bfe5d3014d9259f217b9441

Download Submit
memory/1060-19-0x0000000002060000-0x0000000002066000-memory.dmp

Filesize
24KB

Download
memory/1060-20-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/1368-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/1368-1-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/1368-2-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/1368-3-0x0000000000510000-0x0000000000516000-memory.dmp

Filesize
24KB

Download
memory/1368-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download