1c27769e0cf4587b401091405b58fd7589099abc6a1e5780a5c3a99531806cf8

Analysis

max time kernel
150s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
08/04/2024, 11:30

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-04-08_2c92432e87149c5d6a35e7d7bdfa52a9_cryptolocker.exe
Size

133KB
MD5

2c92432e87149c5d6a35e7d7bdfa52a9
SHA1

b8dbb5faaf599eb342ee8dfd5871052bff33683b
SHA256

1c27769e0cf4587b401091405b58fd7589099abc6a1e5780a5c3a99531806cf8
SHA512

2d7b7e1920221780a74fec8608e315435bd79b52ac0d9771bca5bfbf6c48f1f05fd65e9c2a8c195fd1c354167e6fcc082319ff413bab52445718b3a929a4db7b
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjQGYQbxGYQbxGYQblPgV:V6a+pOtEvwDpjt22c

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023229-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023229-12.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-1-5-21-3045580317-3728985860-206385570-1000\Control Panel\International\Geo\Nation	2024-04-08_2c92432e87149c5d6a35e7d7bdfa52a9_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2384	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 4684 wrote to memory of 2384	4684	2024-04-08_2c92432e87149c5d6a35e7d7bdfa52a9_cryptolocker.exe	88
PID 4684 wrote to memory of 2384	4684	2024-04-08_2c92432e87149c5d6a35e7d7bdfa52a9_cryptolocker.exe	88
PID 4684 wrote to memory of 2384	4684	2024-04-08_2c92432e87149c5d6a35e7d7bdfa52a9_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-04-08_2c92432e87149c5d6a35e7d7bdfa52a9_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-08_2c92432e87149c5d6a35e7d7bdfa52a9_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4684
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2384

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
133KB

MD5
bb9ddcd7a2838dcba2d367320826ae25

SHA1
7351b83d6bfbbaa7053dd58e1585aeb726b0658e

SHA256
8b6cd915e05e6fd4816c12feef94eec8f7954d11ad03d5b5e40f7f7df53fe699

SHA512
923e6b72e6f6a6b81aec743f909e3b24ca534cfed603b39df58ddc0091415162c9d7cb86f4629cac60da5ac180f03b60f3ca0d822e7bf2a442a8c71305678f31

Download Submit
memory/2384-17-0x00000000006D0000-0x00000000006D6000-memory.dmp

Filesize
24KB

Download
memory/2384-23-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/4684-0-0x00000000021E0000-0x00000000021E6000-memory.dmp

Filesize
24KB

Download
memory/4684-1-0x00000000021E0000-0x00000000021E6000-memory.dmp

Filesize
24KB

Download
memory/4684-2-0x0000000002100000-0x0000000002106000-memory.dmp

Filesize
24KB

Download