79299ddae481e19001fa8664d6edc84d85c868602a7b588bfd955e961a24a413

Analysis

max time kernel
148s
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
03/06/2024, 23:30

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General

Target

2024-06-03_ee404bc0b2e793f0e345a860dfd9fbed_cryptolocker.exe
Size

56KB
MD5

ee404bc0b2e793f0e345a860dfd9fbed
SHA1

255c8423f43f30f32830f2138ea79c38ccb9c0b9
SHA256

79299ddae481e19001fa8664d6edc84d85c868602a7b588bfd955e961a24a413
SHA512

11bc5a511fdd929d19eafbdd1eb91f68dbd473f62f76b599803dcf273bb32465bd5fa5d546ec9b8f05265e0c7503f8c45440a550a61c9fd1c701862e0488b3ec
SSDEEP

768:b7o/2n1TCraU6GD1a4Xcn62tH/1/Lp17zJIfeVEuUr6WS:bc/y2lm6iH/NLp17zrV98S

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002328e-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-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	2024-06-03_ee404bc0b2e793f0e345a860dfd9fbed_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3820	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 952 wrote to memory of 3820	952	2024-06-03_ee404bc0b2e793f0e345a860dfd9fbed_cryptolocker.exe	84
PID 952 wrote to memory of 3820	952	2024-06-03_ee404bc0b2e793f0e345a860dfd9fbed_cryptolocker.exe	84
PID 952 wrote to memory of 3820	952	2024-06-03_ee404bc0b2e793f0e345a860dfd9fbed_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-06-03_ee404bc0b2e793f0e345a860dfd9fbed_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-03_ee404bc0b2e793f0e345a860dfd9fbed_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:952
- C:\Users\Admin\AppData\Local\Temp\rewok.exe
  "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
  2⤵
  - Executes dropped EXE
  PID:3820

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\rewok.exe

Filesize
56KB

MD5
9e417ccbafb04a93f75b827f0432e103

SHA1
d30d89eb009eb46d7ab64e02201e6664bd46c418

SHA256
2194ae68de4d97ae056d1c1331675d42e93f60759a79677644926167124ccd28

SHA512
5062597e454326f9f301e671dde84a1b0fe1ece8ed6f8a5c492bd0e1391e31b4c86c9cd8ea4b34f069a57a39ebf37dc6513d000eaca3b7ebce2943644bc3118a

Download Submit
memory/952-0-0x0000000002120000-0x0000000002126000-memory.dmp

Filesize
24KB

Download
memory/952-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/952-8-0x0000000002120000-0x0000000002126000-memory.dmp

Filesize
24KB

Download