c0f8a5080882fa32d6dd56628e606c3ce7fcc149bda973956d7f21b4cc6ec623

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
07/06/2024, 15:30

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General

Target

2024-06-07_86368acba0f22610e6ea6822560f4652_cryptolocker.exe
Size

46KB
MD5

86368acba0f22610e6ea6822560f4652
SHA1

b02715ba0423968a39af4d24edd0176c4c3b82a8
SHA256

c0f8a5080882fa32d6dd56628e606c3ce7fcc149bda973956d7f21b4cc6ec623
SHA512

a2bad717dcbc12984d77e61fbc161e73324ada535897ed9a003a727b78a1f7f19c668c3bd836aae3f728cfa49f36a8ee1a70f53298cf82a0eb90208065847bde
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLam5aFr7YOzzfm0EXsiq:V6QFElP6n+gMQMOtEvwDpjyaYaFAh39q

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000a0000000233d8-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000a0000000233d8-12.dat	CryptoLocker_set1

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-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation	2024-06-07_86368acba0f22610e6ea6822560f4652_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
544	asih.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 3016 wrote to memory of 544	3016	2024-06-07_86368acba0f22610e6ea6822560f4652_cryptolocker.exe	80
PID 3016 wrote to memory of 544	3016	2024-06-07_86368acba0f22610e6ea6822560f4652_cryptolocker.exe	80
PID 3016 wrote to memory of 544	3016	2024-06-07_86368acba0f22610e6ea6822560f4652_cryptolocker.exe	80

C:\Users\Admin\AppData\Local\Temp\2024-06-07_86368acba0f22610e6ea6822560f4652_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-07_86368acba0f22610e6ea6822560f4652_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3016
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:544

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\asih.exe

Filesize
47KB

MD5
7db51b67eb3de020c34d9962359d525b

SHA1
23c748b6c7f427eaffbff61b2d4b5d1e445056ce

SHA256
38e74c1cd066b98a4191bdc3b2551848679eb34c9fd05876d250c8453bda1e11

SHA512
aeeabc697d8498dc4e0ec09ef1417db2e50356b06cf772f7db661b4a379012276cf78b14348d79c84d59a877f7f00507e277f6a79afcb229a455a2b0fe407584

Download Submit
memory/544-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/544-23-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/3016-0-0x00000000020E0000-0x00000000020E6000-memory.dmp

Filesize
24KB

Download
memory/3016-1-0x0000000002100000-0x0000000002106000-memory.dmp

Filesize
24KB

Download
memory/3016-8-0x00000000020E0000-0x00000000020E6000-memory.dmp

Filesize
24KB

Download