5a46a60eed59e89f7239e6c2c0429b4076d0d2509f34676798385a85ebbe0199

Analysis

max time kernel
148s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
25/02/2024, 17:42

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General

Target

2024-02-25_5c5b67c45ad05ba269c51984d343c5e6_cryptolocker.exe
Size

126KB
MD5

5c5b67c45ad05ba269c51984d343c5e6
SHA1

8e3c557118dfc7a5db9f98493709a201bba39f9c
SHA256

5a46a60eed59e89f7239e6c2c0429b4076d0d2509f34676798385a85ebbe0199
SHA512

a82e9af24a3e5eaacd4d81ae1d4e88430dd09486d6d649e30154da3d5e601ae01a1c9580515006eee4bb9151aab6e5292e80f18d3a751bd4d5cee99eef5b53f3
SSDEEP

1536:vj+jsMQMOtEvwDpj5HwYYTjipvF2hBfIuBKLUYOVbvh//jC:vCjsIOtEvwDpj5H9YvQd2Rs

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002322f-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002322f-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-1-5-21-910440534-423636034-2318342392-1000\Control Panel\International\Geo\Nation	2024-02-25_5c5b67c45ad05ba269c51984d343c5e6_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1972	misid.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 4328 wrote to memory of 1972	4328	2024-02-25_5c5b67c45ad05ba269c51984d343c5e6_cryptolocker.exe	87
PID 4328 wrote to memory of 1972	4328	2024-02-25_5c5b67c45ad05ba269c51984d343c5e6_cryptolocker.exe	87
PID 4328 wrote to memory of 1972	4328	2024-02-25_5c5b67c45ad05ba269c51984d343c5e6_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-02-25_5c5b67c45ad05ba269c51984d343c5e6_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-25_5c5b67c45ad05ba269c51984d343c5e6_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4328
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:1972

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\misid.exe

Filesize
126KB

MD5
87668972303c5b8d1494ec2b63696b0b

SHA1
e28b384958bbf04b8489165a5dc8127c8fce1275

SHA256
05dae9005e7373b6fab7077d7ec505bbbcf9c55ff7641b046e91f7c9be48d197

SHA512
2d9066c3f3d086bfa6090e06942d39e8372a0d451c5992bb2ce255ad1825b753c0c5d11eae6c26035b79bca2765083ec9849bb4c775cc925e485fc4ffaab06b6

Download Submit
memory/1972-17-0x0000000002100000-0x0000000002106000-memory.dmp

Filesize
24KB

Download
memory/1972-19-0x0000000000630000-0x0000000000636000-memory.dmp

Filesize
24KB

Download
memory/4328-0-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/4328-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/4328-2-0x00000000006D0000-0x00000000006D6000-memory.dmp

Filesize
24KB

Download