067309e3216a38cbb4456b1c5fd79e96bd4681ea0e79908e54368293a9ecb9dc

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
24-02-2024 02:38

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General

Target

2024-02-24_9acb49fe86451eee800d1af5d043fe57_cryptolocker.exe
Size

60KB
MD5

9acb49fe86451eee800d1af5d043fe57
SHA1

4a531edb027a942f0658b2f902f21e0a558f13ff
SHA256

067309e3216a38cbb4456b1c5fd79e96bd4681ea0e79908e54368293a9ecb9dc
SHA512

02a44972b4f6fa0055c5890c5dc1975d465f5f26debd4716e39dcabeb086dc06940d43e15821c6554442615d7adc69a52f6a2bdae45ae79396fc3d99bbef8422
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUH1:btng54SMLr+/AO/kIhfoKMHds

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023260-12.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-1-5-21-910440534-423636034-2318342392-1000\Control Panel\International\Geo\Nation	2024-02-24_9acb49fe86451eee800d1af5d043fe57_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-910440534-423636034-2318342392-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

pid	Process
4216	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 2356 wrote to memory of 4216	2356	2024-02-24_9acb49fe86451eee800d1af5d043fe57_cryptolocker.exe	86
PID 2356 wrote to memory of 4216	2356	2024-02-24_9acb49fe86451eee800d1af5d043fe57_cryptolocker.exe	86
PID 2356 wrote to memory of 4216	2356	2024-02-24_9acb49fe86451eee800d1af5d043fe57_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-02-24_9acb49fe86451eee800d1af5d043fe57_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-24_9acb49fe86451eee800d1af5d043fe57_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2356
- 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:4216

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
60KB

MD5
9e4340211ba5bcb9f0ff4772d20d0f28

SHA1
ec6ce2f2609186a8b46a176265a96445e9aa1c14

SHA256
90ab90cb0126763e137c236f02a57b5f7257cb74353c9f3c988ef12fdad042ee

SHA512
4fc9a199a9340071d71b388ae706a7d44b291b8f8fca81fde40c0b7eafc043610cdc324207e6b54f86954b08dbc69e6ee759f9862353330bb8bf4162148843a9

Download Submit
memory/2356-0-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/2356-1-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/2356-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4216-20-0x0000000001FA0000-0x0000000001FA6000-memory.dmp

Filesize
24KB

Download