4ef2ba74836f335e1d413a404cbe13c2af6672c41da10f9c5405f96f15a1f742

Analysis

max time kernel
190s
max time network
205s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
29-02-2024 07:38

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General

Target

2024-02-29_859fdc590b0cd7f2b57562f546840084_cryptolocker.exe
Size

32KB
MD5

859fdc590b0cd7f2b57562f546840084
SHA1

4c45f8c3eb757e058de68b86f023d71fd9532773
SHA256

4ef2ba74836f335e1d413a404cbe13c2af6672c41da10f9c5405f96f15a1f742
SHA512

d2fd537da1debf7d7287445c03d564605f522814491d952d32b4d9d2afd9dfb2bd0c488ebc32e424ef3b7a647073897cd8af90d2d0049fc44046f2e16efc5862
SSDEEP

384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUr766SJ/Tl+bltoGk6WdsZR:bA74zYcgT/Ekd0ryfjQRSlwltYU

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002323d-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-1-5-21-609813121-2907144057-1731107329-1000\Control Panel\International\Geo\Nation	2024-02-29_859fdc590b0cd7f2b57562f546840084_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1660	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 1172 wrote to memory of 1660	1172	2024-02-29_859fdc590b0cd7f2b57562f546840084_cryptolocker.exe	90
PID 1172 wrote to memory of 1660	1172	2024-02-29_859fdc590b0cd7f2b57562f546840084_cryptolocker.exe	90
PID 1172 wrote to memory of 1660	1172	2024-02-29_859fdc590b0cd7f2b57562f546840084_cryptolocker.exe	90

C:\Users\Admin\AppData\Local\Temp\2024-02-29_859fdc590b0cd7f2b57562f546840084_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-29_859fdc590b0cd7f2b57562f546840084_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1172
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:1660

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
32KB

MD5
9f4dd1af68f195625ad69c4ceffdd19a

SHA1
2fb51ebb03488fb591ff374aa6d9968bf9ac36f7

SHA256
262c146dd0486b0f2f961ba727016c693a12a8aa0c2ba42e930628be78a11176

SHA512
3f8dbd774eadc9181f538ad77b95edcbfb105131c161085e44c96c1c217c3e58123b83b97d98bb847b53d667c065c36f6b1ea259d031d366730b4725bb8ae72b

Download Submit
memory/1172-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/1172-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/1172-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/1660-17-0x00000000020D0000-0x00000000020D6000-memory.dmp

Filesize
24KB

Download
memory/1660-19-0x0000000002090000-0x0000000002096000-memory.dmp

Filesize
24KB

Download