a423a3fa11d5ffced6edaaa02de3b4ae024396bc53a149dbdc6c6fdab3032a79

Analysis

max time kernel
150s
max time network
150s
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, 02:28

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General

Target

2024-03-09_69a8d69ef76fa883abd29f91a7a04463_cryptolocker.exe
Size

38KB
MD5

69a8d69ef76fa883abd29f91a7a04463
SHA1

a561a198e609e08c5f3ed730200327d680a39649
SHA256

a423a3fa11d5ffced6edaaa02de3b4ae024396bc53a149dbdc6c6fdab3032a79
SHA512

2e256378659ca5d26b3718ff0371f991dcc7944ba65662d15d94494c0b34d344356773e3395785bbd14caf83b868c49c1428682479fa778811e66adefee80438
SSDEEP

384:bgX4uGLLQRcsdeQ7/nQu63Ag7YmecFanrlwfjDUkKDfWf0w3sp8u5cZnfX0:bgX4zYcgTEu6QOaryfjqDDw3sCu5mX0

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00090000000224f7-12.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-1-5-21-275798769-4264537674-1142822080-1000\Control Panel\International\Geo\Nation	2024-03-09_69a8d69ef76fa883abd29f91a7a04463_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4864	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 800 wrote to memory of 4864	800	2024-03-09_69a8d69ef76fa883abd29f91a7a04463_cryptolocker.exe	89
PID 800 wrote to memory of 4864	800	2024-03-09_69a8d69ef76fa883abd29f91a7a04463_cryptolocker.exe	89
PID 800 wrote to memory of 4864	800	2024-03-09_69a8d69ef76fa883abd29f91a7a04463_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-03-09_69a8d69ef76fa883abd29f91a7a04463_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-09_69a8d69ef76fa883abd29f91a7a04463_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:800
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:4864

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
38KB

MD5
6f054a6806a28db0d4e2890e6a136c0a

SHA1
4324d364037484e6df87becd4becb1d148bef331

SHA256
f075c57a9a9fa143b1258493ac00a6b8dfea53eb68399e31be000d9224fbaf0b

SHA512
8f850a657ca5975c0646737e3cfbcb115c4a232531665f7883a79a05b92150fdb9f1ded7056e43ca75aa6e591f8ff9d0b1bf4a6205f0305267a2c5e1d405bad4

Download Submit
memory/800-0-0x0000000002190000-0x0000000002196000-memory.dmp

Filesize
24KB

Download
memory/800-1-0x0000000002190000-0x0000000002196000-memory.dmp

Filesize
24KB

Download
memory/800-2-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/4864-19-0x0000000001FA0000-0x0000000001FA6000-memory.dmp

Filesize
24KB

Download