53105ad33ab8bd78c9558ce863872a8cd9122d13731739d3fcf9192e0fbe8a4f

Analysis

max time kernel
147s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
01/02/2024, 20:02

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General

Target

2024-02-01_921a8a646b53f800e3b3605b47da406d_cryptolocker.exe
Size

28KB
MD5

921a8a646b53f800e3b3605b47da406d
SHA1

4f7b0704ad43f15ded7f44dcdc9a1778c2b9211e
SHA256

53105ad33ab8bd78c9558ce863872a8cd9122d13731739d3fcf9192e0fbe8a4f
SHA512

3feb7e2ce097d3b302233a99dba37f203a65f427870eda20d52130846fd9c8d084d94712ba2f711d198d3d0645597f0ba8ed59f2230b2b49367b9958bc38f18f
SSDEEP

384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUr766SJ/T+AH5O:bA74zYcgT/Ekd0ryfjQRSl+

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023202-12.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-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation	2024-02-01_921a8a646b53f800e3b3605b47da406d_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1188	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 436 wrote to memory of 1188	436	2024-02-01_921a8a646b53f800e3b3605b47da406d_cryptolocker.exe	85
PID 436 wrote to memory of 1188	436	2024-02-01_921a8a646b53f800e3b3605b47da406d_cryptolocker.exe	85
PID 436 wrote to memory of 1188	436	2024-02-01_921a8a646b53f800e3b3605b47da406d_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-02-01_921a8a646b53f800e3b3605b47da406d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-01_921a8a646b53f800e3b3605b47da406d_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:436
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:1188

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
9671906abb528afad857b57176fcee06

SHA1
edd49c9fd54c3c02f1b63d0a5af2d2dd8d9494c2

SHA256
fa9ebc87485760b15051661d6a4d50f88d92fc0e999015851ad71cbd19bba4a1

SHA512
03828513f86a1a411b8a9d42dbd58e3024b5172ec86d11b87eed17874ff37818cc91553f0423b68f1f37e83153c7afbee0877fda8bbeb45a4b77555edf2eaaf6

Download Submit
memory/436-0-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/436-1-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/436-2-0x0000000002400000-0x0000000002406000-memory.dmp

Filesize
24KB

Download
memory/1188-17-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/1188-23-0x0000000000700000-0x0000000000706000-memory.dmp

Filesize
24KB

Download