39238b1409a9da2cc1996a469337e3f4bd35a746cec4ed5bf298689383fed070

Analysis

max time kernel
150s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
23/04/2024, 01:41

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General

Target

2024-04-23_eb05ed08859b8915559f85699fc5f178_cryptolocker.exe
Size

387KB
MD5

eb05ed08859b8915559f85699fc5f178
SHA1

5d959671dfc3a718b788ff24e840a1657e660248
SHA256

39238b1409a9da2cc1996a469337e3f4bd35a746cec4ed5bf298689383fed070
SHA512

1db76240af3b765fb94cbb7c0fdd5e9071bc9383f03c471c1585b9737d56dd384213c097bd1053b1d1daf85dc93cc3171ff87868470f3da6562aac4145de3c72
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXF:nnOflT/ZFIjBz3xjTxynGUOUhXF

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001e970-12.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-1-5-21-2177723727-746291240-1644359950-1000\Control Panel\International\Geo\Nation	2024-04-23_eb05ed08859b8915559f85699fc5f178_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1056	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 1936 wrote to memory of 1056	1936	2024-04-23_eb05ed08859b8915559f85699fc5f178_cryptolocker.exe	84
PID 1936 wrote to memory of 1056	1936	2024-04-23_eb05ed08859b8915559f85699fc5f178_cryptolocker.exe	84
PID 1936 wrote to memory of 1056	1936	2024-04-23_eb05ed08859b8915559f85699fc5f178_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-04-23_eb05ed08859b8915559f85699fc5f178_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-23_eb05ed08859b8915559f85699fc5f178_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1936
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:1056

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
388KB

MD5
905edf8753b3e8bd68c5cc59fd317389

SHA1
3a062f7e64f9ce85a3ec5276e319f3916a515661

SHA256
e5a083187b86ca4b9db21de75b29490f97b90ae545d5fdc53ff97a1696aa4575

SHA512
1872e064b6df86b82243d37f828c3ef935414a4f69638a7a4d047484fe35aa468cc88783d6cc504ada092884feb08cc3114830dda2bcc51e141f3eae22ef4550

Download Submit
memory/1056-17-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/1056-23-0x0000000001F90000-0x0000000001F96000-memory.dmp

Filesize
24KB

Download
memory/1936-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/1936-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/1936-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download