8339080e52aeb9560afa1ed62aab7f9882de909564483eae5e0161a55cbc6a30

Analysis

max time kernel
150s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
09/03/2024, 00:44

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General

Target

2024-03-09_bceb82b2f20b16d9ee6555ddccee2403_cryptolocker.exe
Size

386KB
MD5

bceb82b2f20b16d9ee6555ddccee2403
SHA1

d0efd9e125fe2695b108efddf6d89eb5ecc50917
SHA256

8339080e52aeb9560afa1ed62aab7f9882de909564483eae5e0161a55cbc6a30
SHA512

1be43196381a6c2d162801c0cb32534702d1acb4308bcd075f5e18c06852b3994ce7ed3f449b81098f44d5916127bd84c8493a27383a4c058eb7fb85347ec932
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXK:nnOflT/ZFIjBz3xjTxynGUOUhXK

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000001ebc7-12.dat	CryptoLocker_rule2

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-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation	2024-03-09_bceb82b2f20b16d9ee6555ddccee2403_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3312	hasfj.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 220 wrote to memory of 3312	220	2024-03-09_bceb82b2f20b16d9ee6555ddccee2403_cryptolocker.exe	89
PID 220 wrote to memory of 3312	220	2024-03-09_bceb82b2f20b16d9ee6555ddccee2403_cryptolocker.exe	89
PID 220 wrote to memory of 3312	220	2024-03-09_bceb82b2f20b16d9ee6555ddccee2403_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-03-09_bceb82b2f20b16d9ee6555ddccee2403_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-09_bceb82b2f20b16d9ee6555ddccee2403_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:220
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:3312

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\hasfj.exe

Filesize
386KB

MD5
71aa699623f83bd4ac1488f0734b7b4b

SHA1
0a1d06811929cb7e9956b1edf8102bc0b70cf47a

SHA256
49677d1cf81e40f32727c38f8bb862bbc35678999a2b882bc69ffc209cb00a18

SHA512
ebe5711ba1d0528d6967674c86e3b2e2374c537d565a00bc88a48760398ec30702d27b61d7363ba07ea9a81618a8212cff737de2c12fdd3ff587ba6e544237c9

Download Submit
memory/220-0-0x00000000021C0000-0x00000000021C6000-memory.dmp

Filesize
24KB

Download
memory/220-1-0x00000000021C0000-0x00000000021C6000-memory.dmp

Filesize
24KB

Download
memory/220-2-0x0000000003140000-0x0000000003146000-memory.dmp

Filesize
24KB

Download
memory/3312-17-0x0000000003000000-0x0000000003006000-memory.dmp

Filesize
24KB

Download
memory/3312-19-0x0000000002110000-0x0000000002116000-memory.dmp

Filesize
24KB

Download