2ab33ba471ca592e938ece6dad331e0c19d195e24e3c2d2ceef40fc1b824c603

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
08/03/2024, 06:29

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General

Target

2024-03-08_f9afca47fafd646c7e2265858343e66a_cryptolocker.exe
Size

59KB
MD5

f9afca47fafd646c7e2265858343e66a
SHA1

a775bdcc03f5ba0cb1f57d7be8650835b60c6cb0
SHA256

2ab33ba471ca592e938ece6dad331e0c19d195e24e3c2d2ceef40fc1b824c603
SHA512

b637b44f5a31cdff69e2894ce029ffe7297bd182981fa45c8b6c0df96e5558b3468882fd0369ad8289e8490a36c8ebf053df9da345f2abe6949efd2d4f550e27
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHH:btng54SMLr+/AO/kIhfoKMHdK

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002321a-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-1-5-21-2727153400-192325109-1870347593-1000\Control Panel\International\Geo\Nation	2024-03-08_f9afca47fafd646c7e2265858343e66a_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2727153400-192325109-1870347593-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

pid	Process
1312	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 5068 wrote to memory of 1312	5068	2024-03-08_f9afca47fafd646c7e2265858343e66a_cryptolocker.exe	90
PID 5068 wrote to memory of 1312	5068	2024-03-08_f9afca47fafd646c7e2265858343e66a_cryptolocker.exe	90
PID 5068 wrote to memory of 1312	5068	2024-03-08_f9afca47fafd646c7e2265858343e66a_cryptolocker.exe	90

C:\Users\Admin\AppData\Local\Temp\2024-03-08_f9afca47fafd646c7e2265858343e66a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-08_f9afca47fafd646c7e2265858343e66a_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5068
- 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:1312

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
59KB

MD5
52f751935d3b0735e5f34240ec90ea52

SHA1
68a376159d1b46b21cd2c815c32a49ba1d4f572d

SHA256
57b6a48da9c87e8477ce93359cfd9fe302e364a7efe65c3640684fa6a3142077

SHA512
320b54d15bede1dd30dd1a88b24a38bc91aeaee999df1b08795d08c553a3b327ef0687d5ef705cc1f668d5c0cdf15839c38da32e16a1842c4ef26fd9209bf84e

Download Submit
memory/1312-22-0x0000000001FA0000-0x0000000001FA6000-memory.dmp

Filesize
24KB

Download
memory/5068-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/5068-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/5068-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download