49f7360dc9c92aaff836ed6b0f8cc9ebc86c7427ca30579b07cec094e94b688d

Analysis

max time kernel
150s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
14/02/2024, 03:49

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General

Target

2024-02-14_6a15fea1d893e02300eb52216858415b_cryptolocker.exe
Size

29KB
MD5

6a15fea1d893e02300eb52216858415b
SHA1

c743ed485918e4ae7c33b07713fcb6575ce64ae0
SHA256

49f7360dc9c92aaff836ed6b0f8cc9ebc86c7427ca30579b07cec094e94b688d
SHA512

5454d2954f0297faad7441c992174be1b390d3a405869e8e2f24044bb2bddd49333c807dfc150de5292c1a1f5ed9e4917b2bf00410ed361f012849738b96ea3f
SSDEEP

384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUr766SJ5S+z6:bA74zYcgT/Ekd0ryfjQRSnrG

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00090000000231eb-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-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation	2024-02-14_6a15fea1d893e02300eb52216858415b_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2448	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 3996 wrote to memory of 2448	3996	2024-02-14_6a15fea1d893e02300eb52216858415b_cryptolocker.exe	84
PID 3996 wrote to memory of 2448	3996	2024-02-14_6a15fea1d893e02300eb52216858415b_cryptolocker.exe	84
PID 3996 wrote to memory of 2448	3996	2024-02-14_6a15fea1d893e02300eb52216858415b_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-02-14_6a15fea1d893e02300eb52216858415b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-14_6a15fea1d893e02300eb52216858415b_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3996
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2448

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
29KB

MD5
27149b567569f4da68d139f353da05b9

SHA1
2b9751a6a77c899a586e1cd55b88a90a024d65c3

SHA256
cc3b4fdadc85ce5337ebde9a62968eb145a6ff0af26961be1f33c3e7ace3287a

SHA512
de9cec964b4a2b79e7a8daf85b3d871f2dc6a67c9894a9b708ade8e03c154b42644dc604796ff436ccbe04a4720fe4d7dac6827ca653c9f68e40f9f5a3ff736b

Download Submit
memory/2448-17-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/2448-23-0x0000000002120000-0x0000000002126000-memory.dmp

Filesize
24KB

Download
memory/3996-0-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/3996-1-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/3996-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download