3532a41be345a53e7e7e8aa31db4b94a545177f280815037dfebfad53caff25b

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
09/05/2024, 07:28

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General

Target

2024-05-09_d7d0348f2ed9aa7020ec4352de75f754_cryptolocker.exe
Size

36KB
MD5

d7d0348f2ed9aa7020ec4352de75f754
SHA1

d263478e2458fdaaea7eb91ef41fdb752a76dc39
SHA256

3532a41be345a53e7e7e8aa31db4b94a545177f280815037dfebfad53caff25b
SHA512

33469cdbbd66aeb6fdfd76fff7a0c9a6f0666b8dd2008166c0b8c90731f5403c0a6bfb2fce48fc7f1cd2f5042fbe67569431866b6d3629004a9fbd931b92515c
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4l8tFFxE2B0qZvT:btB9g/WItCSsAGjX7r3BTZvT

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000c0000000233da-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	2024-05-09_d7d0348f2ed9aa7020ec4352de75f754_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3184	gewos.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 4752 wrote to memory of 3184	4752	2024-05-09_d7d0348f2ed9aa7020ec4352de75f754_cryptolocker.exe	83
PID 4752 wrote to memory of 3184	4752	2024-05-09_d7d0348f2ed9aa7020ec4352de75f754_cryptolocker.exe	83
PID 4752 wrote to memory of 3184	4752	2024-05-09_d7d0348f2ed9aa7020ec4352de75f754_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-05-09_d7d0348f2ed9aa7020ec4352de75f754_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-09_d7d0348f2ed9aa7020ec4352de75f754_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4752
- C:\Users\Admin\AppData\Local\Temp\gewos.exe
  "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
  2⤵
  - Executes dropped EXE
  PID:3184

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\gewos.exe

Filesize
36KB

MD5
587758301a43e82fea99b424d92a4860

SHA1
f98f7f590377250aa75ca5fa3f2d9c7296bbdeae

SHA256
89112f6d4db163b3b37687c866e682eb5c44f655fbd14a27a8a397a6c805dd5a

SHA512
9120248ba2d14b72284756067097304a0f646d0ece65507eeefcfa1eba09eb6e0f21f2ad5d1b198b281418c0986d36abf8b1c16e668d8cfea317a8bf19fac03f

Download Submit
memory/3184-19-0x00000000021E0000-0x00000000021E6000-memory.dmp

Filesize
24KB

Download
memory/4752-0-0x0000000000730000-0x0000000000736000-memory.dmp

Filesize
24KB

Download
memory/4752-8-0x0000000000730000-0x0000000000736000-memory.dmp

Filesize
24KB

Download
memory/4752-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download