289e831510d4dae6347cdddc75b1e2a68555c5f17c933db8e2ee4355a1b8099b

Analysis

max time kernel
134s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
20/02/2024, 06:15

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General

Target

2024-02-20_f2db21ba38f59a498c61794a27a6d13a_cryptolocker.exe
Size

42KB
MD5

f2db21ba38f59a498c61794a27a6d13a
SHA1

5bcbb1e456bef02497a3ec784b9101fcd7885fea
SHA256

289e831510d4dae6347cdddc75b1e2a68555c5f17c933db8e2ee4355a1b8099b
SHA512

e327e9609be8bed133922c780906d0cd4fe33ef83f8f36293be2ed0d7a04fbd2e9427e4fb585fa6b1f04dbdd8f97822f7ca919333571afb0a8ba62d42055d54e
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLam5aFr7YOzzV9Z:V6QFElP6n+gMQMOtEvwDpjyaYaFAoZ

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023112-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023112-12.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-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	2024-02-20_f2db21ba38f59a498c61794a27a6d13a_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
216	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 5048 wrote to memory of 216	5048	2024-02-20_f2db21ba38f59a498c61794a27a6d13a_cryptolocker.exe	83
PID 5048 wrote to memory of 216	5048	2024-02-20_f2db21ba38f59a498c61794a27a6d13a_cryptolocker.exe	83
PID 5048 wrote to memory of 216	5048	2024-02-20_f2db21ba38f59a498c61794a27a6d13a_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-02-20_f2db21ba38f59a498c61794a27a6d13a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-20_f2db21ba38f59a498c61794a27a6d13a_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5048
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:216

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
42KB

MD5
247ae5bdfea72cf91aa3c5813acc88b5

SHA1
1dfbf33c7c2d5df65e1f785b191bf67be785ed50

SHA256
bf3c2d4d7627071dbda36d11745bed30f5dcd418b228ef126c20cb02642eb1d3

SHA512
0b246111ff34bc9e7f0a87bf87bae6fb1d67014f8a6711181898b8dfd8877f832e2a88825265db703e55c2e72082e0b9ecaeae108db6e3ba7d08cca8f09fcdde

Download Submit
memory/216-17-0x00000000020F0000-0x00000000020F6000-memory.dmp

Filesize
24KB

Download
memory/216-18-0x0000000000570000-0x0000000000576000-memory.dmp

Filesize
24KB

Download
memory/5048-0-0x0000000000620000-0x0000000000626000-memory.dmp

Filesize
24KB

Download
memory/5048-1-0x0000000000620000-0x0000000000626000-memory.dmp

Filesize
24KB

Download
memory/5048-2-0x0000000000650000-0x0000000000656000-memory.dmp

Filesize
24KB

Download