64405c8e79d772e57cd11e842c6c472b1163f0bcaa9e6c6c77ddb6ef95d0f24c

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
04-06-2024 21:35

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General

Target

2024-06-04_747f36edea9e79cb2dfc463704584789_cryptolocker.exe
Size

39KB
MD5

747f36edea9e79cb2dfc463704584789
SHA1

b870c323c432d26b2095ccd023d0ce0cb8ed81d1
SHA256

64405c8e79d772e57cd11e842c6c472b1163f0bcaa9e6c6c77ddb6ef95d0f24c
SHA512

ebebb202ae5ee5b5585c99b9011bf29c2bc92f536687a8e3bc275a36ce4dd7a679792781f93a02ad2c4213b1582235de66dedf1946ba383678596fd5c3689b66
SSDEEP

768:b7o/2n1TCraU6GD1a4Xt9bRU6zA6o36mh02:bc/y2lLRU6zA6qe2

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0009000000023289-12.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-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	2024-06-04_747f36edea9e79cb2dfc463704584789_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2944	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 5040 wrote to memory of 2944	5040	2024-06-04_747f36edea9e79cb2dfc463704584789_cryptolocker.exe	82
PID 5040 wrote to memory of 2944	5040	2024-06-04_747f36edea9e79cb2dfc463704584789_cryptolocker.exe	82
PID 5040 wrote to memory of 2944	5040	2024-06-04_747f36edea9e79cb2dfc463704584789_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-06-04_747f36edea9e79cb2dfc463704584789_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-04_747f36edea9e79cb2dfc463704584789_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5040
- C:\Users\Admin\AppData\Local\Temp\rewok.exe
  "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
  2⤵
  - Executes dropped EXE
  PID:2944

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
39KB

MD5
6e48e432112dce134482bf88898688bb

SHA1
2511e6625129dfad6e2720c9699ac23073b3d9db

SHA256
17865d988a2abd9e5297c6c671b59bf9435622cb80c63cfa40c8bd19bafac277

SHA512
ae1c9865583d3657c1961fc6d44dd080d4118caee26794cb92a5c5b288808ebaa8abccba7f545452932357b36474f5ca1f17a3c062558e0d3b1af0211d5861cb

Download Submit
memory/2944-25-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/5040-0-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/5040-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/5040-8-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download