7c2530d35242d5821c821e5e6cd22e12172dcc1150fb3febb02de6df5e3ce7ce

Analysis

max time kernel
150s
max time network
158s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
24/02/2024, 05:23

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

2024-02-24_e87868dfe877cfcbb8e26de705f2bc5d_cryptolocker.exe
Size

31KB
MD5

e87868dfe877cfcbb8e26de705f2bc5d
SHA1

3511894560dcc5a97ac00725db1e86b7d04994ec
SHA256

7c2530d35242d5821c821e5e6cd22e12172dcc1150fb3febb02de6df5e3ce7ce
SHA512

2d700deeacbbf2616f66ebf089f51e29f66a590142fe8d439bb78e1d2964ee9271fc71a400d322d98dd07d58102f22b0996c51b7eff6604bc71bb3cea99f1022
SSDEEP

384:bmM0V/YPvnr801TRoUGPh4TKt6ATt1DqgPa3s/zzoCt9R0aOr:b7o/2n1TCraU6GD1a4Xt9R0aOr

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0006000000023215-12.dat	CryptoLocker_rule2

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-1-5-21-1414748551-1520717498-2956787782-1000\Control Panel\International\Geo\Nation	2024-02-24_e87868dfe877cfcbb8e26de705f2bc5d_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4576	rewok.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 2672 wrote to memory of 4576	2672	2024-02-24_e87868dfe877cfcbb8e26de705f2bc5d_cryptolocker.exe	88
PID 2672 wrote to memory of 4576	2672	2024-02-24_e87868dfe877cfcbb8e26de705f2bc5d_cryptolocker.exe	88
PID 2672 wrote to memory of 4576	2672	2024-02-24_e87868dfe877cfcbb8e26de705f2bc5d_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-02-24_e87868dfe877cfcbb8e26de705f2bc5d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-24_e87868dfe877cfcbb8e26de705f2bc5d_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2672
- C:\Users\Admin\AppData\Local\Temp\rewok.exe
  "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
  2⤵
  - Executes dropped EXE
  PID:4576

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\rewok.exe

Filesize
32KB

MD5
2fc54468cacfedec47470e8b8d2f4c3c

SHA1
9b3c755dfb4063470d723799b2df3f49afb05f10

SHA256
bb38d419ee3adc26f11c110935bfc774cda3477a9016a1605f1809e55f528e43

SHA512
005aa4f5eb3daa52f875af0cbe927c3025f2d48d2f0bc5c311cff3517748a708dff4f6f7bd4291e754f028a073aedc4852338ecdac700f924772a5fd1423bcad

Download Submit
memory/2672-0-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download
memory/2672-1-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download
memory/2672-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4576-21-0x0000000002020000-0x0000000002026000-memory.dmp

Filesize
24KB

Download