6dfe133740bb99c82fadab1e3d05a8567aed8585494efc9fce3ede44554ce52c

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
23-02-2024 05:36

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General

Target

2024-02-23_30e0deda7622be1e5dd9519530040af7_cryptolocker.exe
Size

31KB
MD5

30e0deda7622be1e5dd9519530040af7
SHA1

629727c6a86c549e335d598ee3cf931d5e36f383
SHA256

6dfe133740bb99c82fadab1e3d05a8567aed8585494efc9fce3ede44554ce52c
SHA512

863cbc77276ecbabd1af081ba358af19e7864dc1ce31032a272fc2bd706f61358b68ccbca960d33cef914ad26fe24a3506163e2b4d132c57d658d5b7a49465dc
SSDEEP

384:bmM0V/YPvnr801TRoUGPh4TKt6ATt1DqgPa3s/zzoCt9R0aOm:b7o/2n1TCraU6GD1a4Xt9R0aOm

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0006000000023140-12.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-1-5-21-3844919115-497234255-166257750-1000\Control Panel\International\Geo\Nation	2024-02-23_30e0deda7622be1e5dd9519530040af7_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1600	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 5060 wrote to memory of 1600	5060	2024-02-23_30e0deda7622be1e5dd9519530040af7_cryptolocker.exe	86
PID 5060 wrote to memory of 1600	5060	2024-02-23_30e0deda7622be1e5dd9519530040af7_cryptolocker.exe	86
PID 5060 wrote to memory of 1600	5060	2024-02-23_30e0deda7622be1e5dd9519530040af7_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-02-23_30e0deda7622be1e5dd9519530040af7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-23_30e0deda7622be1e5dd9519530040af7_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5060
- C:\Users\Admin\AppData\Local\Temp\rewok.exe
  "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
  2⤵
  - Executes dropped EXE
  PID:1600

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
31KB

MD5
62888a16acd9881b7fca529d497fd547

SHA1
d6c2395cf2bde97a708268b24bd6d7db2920c48c

SHA256
3590146520e4332083e14f3fb1d849480019272e6386bce5232dd9ceb1f65e99

SHA512
1c602d04f69dbb4de396032bb786f6b9e9e803efc6adb009a6d9617555f386bebe0db9b719f63aefd6a4d3310c50ea598212ea993a8a75492af4fa954545dce3

Download Submit
memory/1600-18-0x00000000006F0000-0x00000000006F6000-memory.dmp

Filesize
24KB

Download
memory/5060-0-0x0000000002260000-0x0000000002266000-memory.dmp

Filesize
24KB

Download
memory/5060-1-0x0000000002260000-0x0000000002266000-memory.dmp

Filesize
24KB

Download
memory/5060-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download