c2d487c89639340dcd60e4b3532701c42aa1476dff58861e5a079d76485e6275

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
27/03/2024, 23:26

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

2024-03-27_6e72379dfbdd47672396bcfd2120814b_cryptolocker.exe
Size

58KB
MD5

6e72379dfbdd47672396bcfd2120814b
SHA1

05778584358e779d7b4742c9d620e0c9c55509ce
SHA256

c2d487c89639340dcd60e4b3532701c42aa1476dff58861e5a079d76485e6275
SHA512

b4f5831ee36745459c96a9e2ed25e024d87d45540ee8a62099ef705688a36647360289e0178e15537f51ef4f5a6700b6942a0aa643a788e515d41c50a33a97f9
SSDEEP

768:3Uz7yVEhs9+Hs1SQtOOtEvwDpjO9+4hdCY8EQMjpi/Wpi3B3URiLqCyLuAx8XGK:3P+HsMQMOtEvwDpjoHy7B3g9CWuAxW9

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral2/memory/4772-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x0008000000023202-13.dat	CryptoLocker_rule2
behavioral2/memory/4772-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/3956-26-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral2/memory/4772-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x0008000000023202-13.dat	CryptoLocker_set1
behavioral2/memory/4772-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral2/memory/3956-26-0x0000000000500000-0x000000000050B000-memory.dmp	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-1-5-21-513485977-2495024337-1260977654-1000\Control Panel\International\Geo\Nation	2024-03-27_6e72379dfbdd47672396bcfd2120814b_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3956	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 4772 wrote to memory of 3956	4772	2024-03-27_6e72379dfbdd47672396bcfd2120814b_cryptolocker.exe	88
PID 4772 wrote to memory of 3956	4772	2024-03-27_6e72379dfbdd47672396bcfd2120814b_cryptolocker.exe	88
PID 4772 wrote to memory of 3956	4772	2024-03-27_6e72379dfbdd47672396bcfd2120814b_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-03-27_6e72379dfbdd47672396bcfd2120814b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-27_6e72379dfbdd47672396bcfd2120814b_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4772
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:3956

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\misid.exe

Filesize
59KB

MD5
fe7a90f21c0c9d102565a0de739b3ef8

SHA1
274b7edb5d724c3e67bb94da851dbd5654e6cf26

SHA256
07cdf2a9d464753c09efdfd774dfe368d19c601392b47683c7f63b4f82542113

SHA512
7482706c484c4f3069975e229af5298404a64ceeb6673f8ea6195fe695d7ba670d2cd481b9f1c0d7527c9b7940c9f45dbfc1dd8fc26c9460645d3926184a8f2d

Download Submit
memory/3956-19-0x0000000002100000-0x0000000002106000-memory.dmp

Filesize
24KB

Download
memory/3956-23-0x00000000021E0000-0x00000000021E6000-memory.dmp

Filesize
24KB

Download
memory/3956-26-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/4772-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/4772-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4772-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4772-3-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/4772-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download