56b5225093bbafdf93362003e6fff2e185da275fc1ec605e2f13344721f6ed03

Analysis

max time kernel
148s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
14/02/2024, 03:44

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General

Target

2024-02-14_4667fcf3c31463ba8fed757cbbee9634_cryptolocker.exe
Size

32KB
MD5

4667fcf3c31463ba8fed757cbbee9634
SHA1

8f70cb16c20a217449f305afd5da281f2c2f32ef
SHA256

56b5225093bbafdf93362003e6fff2e185da275fc1ec605e2f13344721f6ed03
SHA512

f16cd7d0aaa9698c12f4e741c65770c94c55a1aaecde81d9ac04a2cb0632de3e4d8d1f55972e7a93caf92a059b4619f3ecd461a451d89589d7aa512374ab8acb
SSDEEP

384:bmM0V/YPvnr801TRoUGPh4TKt6ATt1DqgPa3s/zzoCt9/B1RwFtzxt+:b7o/2n1TCraU6GD1a4Xt9bRwrb+

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023226-12.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-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation	2024-02-14_4667fcf3c31463ba8fed757cbbee9634_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4816	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 2408 wrote to memory of 4816	2408	2024-02-14_4667fcf3c31463ba8fed757cbbee9634_cryptolocker.exe	84
PID 2408 wrote to memory of 4816	2408	2024-02-14_4667fcf3c31463ba8fed757cbbee9634_cryptolocker.exe	84
PID 2408 wrote to memory of 4816	2408	2024-02-14_4667fcf3c31463ba8fed757cbbee9634_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-02-14_4667fcf3c31463ba8fed757cbbee9634_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-14_4667fcf3c31463ba8fed757cbbee9634_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2408
- C:\Users\Admin\AppData\Local\Temp\rewok.exe
  "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
  2⤵
  - Executes dropped EXE
  PID:4816

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
33KB

MD5
e08301f4e35eaeba6e073fbd04114bf0

SHA1
1fa8a57075f933e61810090c17028020d1e8357a

SHA256
4d63928b304f4d6f9baccb816124b420e5180bd2124bfcf98c0cba853350eecb

SHA512
588ebe7697f566abcb490b64323e0187beb8d9fdf885d6ce7c824708446ca27f59f1fad8849f6af29773a49b3818d1c7dde0f399f962076e069b55595ea9dc19

Download Submit
memory/2408-0-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download
memory/2408-1-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download
memory/2408-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download