010ea40ed3a7a323590c91b454d0f92c4602e569457532983218014c0cd84fc6

Analysis

max time kernel
142s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
25/01/2024, 09:47

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General

Target

2024-01-25_e004592f1114022d6dd1c1e7f0670365_cryptolocker.exe
Size

68KB
MD5

e004592f1114022d6dd1c1e7f0670365
SHA1

3714f8726197d1d3b0416398e0158167a9d990ef
SHA256

010ea40ed3a7a323590c91b454d0f92c4602e569457532983218014c0cd84fc6
SHA512

6f0d9a5143dd53dd08edefc29641479c1860a904c3d858bde494f59ace8d531992e68dbb6580f9f8a16e0444ffbbebf05b30ba32fed9725b7469f08047b78b09
SSDEEP

1536:Dk/xY0sllyGQMOtEvwDpjwycDtKkQZQRKb61vSbgZ3QzNKUG:DW60sllyWOtEvwDpjwF85E

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 3 IoCs

resource	yara_rule
behavioral2/memory/4144-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x0009000000022480-13.dat	CryptoLocker_rule2
behavioral2/memory/4144-18-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 3 IoCs

resource	yara_rule
behavioral2/memory/4144-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x0009000000022480-13.dat	CryptoLocker_set1
behavioral2/memory/4144-18-0x0000000000500000-0x000000000050B000-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-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	2024-01-25_e004592f1114022d6dd1c1e7f0670365_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2420	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 4144 wrote to memory of 2420	4144	2024-01-25_e004592f1114022d6dd1c1e7f0670365_cryptolocker.exe	88
PID 4144 wrote to memory of 2420	4144	2024-01-25_e004592f1114022d6dd1c1e7f0670365_cryptolocker.exe	88
PID 4144 wrote to memory of 2420	4144	2024-01-25_e004592f1114022d6dd1c1e7f0670365_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-01-25_e004592f1114022d6dd1c1e7f0670365_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-25_e004592f1114022d6dd1c1e7f0670365_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4144
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2420

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
7ff3c6d613e57368a04ac061d7feab08

SHA1
3f98f8607ab0992f877e3d723b77261c85003047

SHA256
3fbb9c5c3d3fe510c479286e51bc8ae72d675a13fad40a98d04b02cdb188be79

SHA512
5d6a61f479275a9e63fd1ef6fda6aecf3c751a04d3de0c6dfa81906e16f28cb151ca7b550eb5eee23c09ab7cdcb1355ab2e4db09f62811818b3d620716eb4c83

Download Submit
memory/2420-19-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/2420-22-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4144-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/4144-1-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/4144-2-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/4144-3-0x0000000002080000-0x0000000002086000-memory.dmp

Filesize
24KB

Download
memory/4144-18-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download