37b6208e4be164cc638d65c3bf00213eadbf5b215d286ac868ef1bcbd491c6c3

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
29-05-2024 06:25

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General

Target

2024-05-29_1570972f230a7217f54201f169b17172_cryptolocker.exe
Size

74KB
MD5

1570972f230a7217f54201f169b17172
SHA1

5afd69ecd3abce10251c47fe06ba4275cb9fba21
SHA256

37b6208e4be164cc638d65c3bf00213eadbf5b215d286ac868ef1bcbd491c6c3
SHA512

e9f2081dd7668014b40cb2aa755e668f7961963829eb63a800a77394d12621488b86af0f8e1059343a72218e963f4fb6c1cc753194783011023359a372d2c3c3
SSDEEP

768:u6LsoEEeegiZPvEhHSG+gZgtOOtEvwDpjeY10Y/YMsPO:u6QFElP6n+gWMOtEvwDpjJGYQbG

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000a00000002328e-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000a00000002328e-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-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	2024-05-29_1570972f230a7217f54201f169b17172_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2344	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 208 wrote to memory of 2344	208	2024-05-29_1570972f230a7217f54201f169b17172_cryptolocker.exe	83
PID 208 wrote to memory of 2344	208	2024-05-29_1570972f230a7217f54201f169b17172_cryptolocker.exe	83
PID 208 wrote to memory of 2344	208	2024-05-29_1570972f230a7217f54201f169b17172_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-05-29_1570972f230a7217f54201f169b17172_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-29_1570972f230a7217f54201f169b17172_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:208
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2344

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
74KB

MD5
6802eb83dda19f5d0ba2821650dc0869

SHA1
e502c42c85b8bb84a2827ac1f73460acf99d60af

SHA256
e26c0684774c8bde7ab71852ba4eed0ff4afc6db365bd3f49ef14692082081e9

SHA512
64c434994c93a1b3ecb4f7fdf2a65d8626d9f98e02b6e2a6471f1b1c43784651dee3c6f45a46174b2f62302c1300f1452735f312770de3bfcf09394c77c957d4

Download Submit
memory/208-0-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/208-1-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download
memory/208-8-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/2344-17-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/2344-23-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download