e21ce302567112c82b10611ba1da3366ace1f23581a501584af9da0f2f4fa0c6

Analysis

max time kernel
150s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
06-03-2024 14:41

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General

Target

2024-03-06_21780e2695156ca66080ca27eb536425_cryptolocker.exe
Size

61KB
MD5

21780e2695156ca66080ca27eb536425
SHA1

221ab5452eea662f83ecf4c80aead45543962184
SHA256

e21ce302567112c82b10611ba1da3366ace1f23581a501584af9da0f2f4fa0c6
SHA512

592c60b90f63a6c2483ecd130e57b2f97d6d0813f0305460570a0cc51b1bc3b531773eb289af18c8e7b32d4d9bb9137e06a96fbb5c084270da0e1961f8df4446
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHNO:btng54SMLr+/AO/kIhfoKMHdJ

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00070000000231e3-12.dat	CryptoLocker_rule2

Checks computer location settings 2 TTPs 2 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-1-5-21-513485977-2495024337-1260977654-1000\Control Panel\International\Geo\Nation	2024-03-06_21780e2695156ca66080ca27eb536425_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

pid	Process
4232	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 4628 wrote to memory of 4232	4628	2024-03-06_21780e2695156ca66080ca27eb536425_cryptolocker.exe	93
PID 4628 wrote to memory of 4232	4628	2024-03-06_21780e2695156ca66080ca27eb536425_cryptolocker.exe	93
PID 4628 wrote to memory of 4232	4628	2024-03-06_21780e2695156ca66080ca27eb536425_cryptolocker.exe	93

C:\Users\Admin\AppData\Local\Temp\2024-03-06_21780e2695156ca66080ca27eb536425_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-06_21780e2695156ca66080ca27eb536425_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4628
- C:\Users\Admin\AppData\Local\Temp\gewos.exe
  "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:4232

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
61KB

MD5
5760ae445f87cb98e5f3e495e9de1288

SHA1
990b40162c99ca34377f73cc7b133aecf71f8407

SHA256
f60316e7ce4047981a1a3627bb6e00e833934b2eec52cf6c481d3bb643498a16

SHA512
604b591bde795c0c9482fd16a5633d894026b45d8ea2fd917a121c893260a595f364460d57cd2c162c011152fbda7dd7552a68eaf66fc96209e233d53e98a881

Download Submit
memory/4232-22-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/4628-0-0x0000000000610000-0x0000000000616000-memory.dmp

Filesize
24KB

Download
memory/4628-1-0x0000000000610000-0x0000000000616000-memory.dmp

Filesize
24KB

Download
memory/4628-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download