cfd61ccef0f2339102ded1f11792ed37f459736299330ba51f70623380be6713

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
24/01/2024, 03:29

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General

Target

2024-01-24_2eaa19f1f553a26538f62b873fc044b6_cryptolocker.exe
Size

72KB
MD5

2eaa19f1f553a26538f62b873fc044b6
SHA1

5852d16ae7eb6f1cfdbcaf39806a1dd47d4c73c1
SHA256

cfd61ccef0f2339102ded1f11792ed37f459736299330ba51f70623380be6713
SHA512

4d7c2feef7d63a5b5f6b865ff4e778d7a4f5eb922c22dcbdc39e64ed8a97ff656efd8b0d4f124f63dadd826f6f742b97b4444823ddcb8bbca8dd9ab24a92fbb5
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1Me:X6a+SOtEvwDpjBZYvQd2j

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023211-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023211-12.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-1-5-21-1232405761-1209240240-3206092754-1000\Control Panel\International\Geo\Nation	2024-01-24_2eaa19f1f553a26538f62b873fc044b6_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
452	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 5104 wrote to memory of 452	5104	2024-01-24_2eaa19f1f553a26538f62b873fc044b6_cryptolocker.exe	89
PID 5104 wrote to memory of 452	5104	2024-01-24_2eaa19f1f553a26538f62b873fc044b6_cryptolocker.exe	89
PID 5104 wrote to memory of 452	5104	2024-01-24_2eaa19f1f553a26538f62b873fc044b6_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-01-24_2eaa19f1f553a26538f62b873fc044b6_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-24_2eaa19f1f553a26538f62b873fc044b6_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5104
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:452

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
72KB

MD5
77f3a33dffd08f3b15825b78693c1817

SHA1
4dba4f5eb71c39e2a3e9e1efe1b722e54e7a4c8f

SHA256
8273f041a64e0da91f90a6dab5c283129fa2117d64a5620a2117e391a3f07cb7

SHA512
c86bf1e3c707b8392fad339f586f976c03eef908491e177d5d9be68e08ad444e5def123c33c5ded6127dc92c0929b4a417512923cbcaa20426f911c597b95042

Download Submit
memory/452-17-0x0000000000650000-0x0000000000656000-memory.dmp

Filesize
24KB

Download
memory/452-21-0x0000000000630000-0x0000000000636000-memory.dmp

Filesize
24KB

Download
memory/5104-0-0x0000000002310000-0x0000000002316000-memory.dmp

Filesize
24KB

Download
memory/5104-2-0x00000000021A0000-0x00000000021A6000-memory.dmp

Filesize
24KB

Download
memory/5104-1-0x0000000002310000-0x0000000002316000-memory.dmp

Filesize
24KB

Download