a69642c1873025505c420ad8f068d18e5a15b6616d7314ab67c2bb37fd2123bf

Analysis

max time kernel
93s
max time network
123s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
30/05/2024, 03:52

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General

Target

2024-05-30_69a5e2d9396143130f0efdd9b5672500_cryptolocker.exe
Size

63KB
MD5

69a5e2d9396143130f0efdd9b5672500
SHA1

8c1819f69a0268096b3bcd7d6859e15cfc634b57
SHA256

a69642c1873025505c420ad8f068d18e5a15b6616d7314ab67c2bb37fd2123bf
SHA512

eae496b0f4317c72414595b6fd165032916c36cb92c6f5c662508b06702c9e0924c2c1575616d30890478ab726246635c8aa7378adb880810abbcaa64ce0eef0
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHZnxC:btng54SMLr+/AO/kIhfoKMHdag

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000a0000000233c2-12.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-1-5-21-4018855536-2201274732-320770143-1000\Control Panel\International\Geo\Nation	2024-05-30_69a5e2d9396143130f0efdd9b5672500_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

pid	Process
3040	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 2848 wrote to memory of 3040	2848	2024-05-30_69a5e2d9396143130f0efdd9b5672500_cryptolocker.exe	83
PID 2848 wrote to memory of 3040	2848	2024-05-30_69a5e2d9396143130f0efdd9b5672500_cryptolocker.exe	83
PID 2848 wrote to memory of 3040	2848	2024-05-30_69a5e2d9396143130f0efdd9b5672500_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-05-30_69a5e2d9396143130f0efdd9b5672500_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-30_69a5e2d9396143130f0efdd9b5672500_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2848
- 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:3040

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
63KB

MD5
d9ab4efe3c027acc3db40d6bf83b9073

SHA1
d4b3460525a01247f594b74673537d2563a04762

SHA256
e9d6dba983742c8360d3b99ec5d0aa30f5a1e201ba97369a5eb291b6dc3a1cf9

SHA512
5a88b0980e784867567d7a35740a03bc04bc04a160349b5ca9655044d0c5a2214ab7728c42d5309862b42ac73031b8b68a1beeb19897d6705df07f243c1c773b

Download Submit
C:\Users\Admin\AppData\Local\Temp\gewosik.exe

Filesize
185B

MD5
15fa302d8a0673a137444c9d85482926

SHA1
ed812675fafe252da4eccee2bb167538935b6cdc

SHA256
bed6ced415ceb1a0d09e0d9d771f3ecc4d6be0ca7e464d161f00cba4a4cd3c16

SHA512
914d2b85dd1beba1e92883dc9bec737efbf29c605c055167ff41051e05f76c00db4818c13d894d6ee09af458f194fd12e5b815a361d226ca32811eaf352ca585

Download Submit
memory/2848-0-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/2848-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2848-8-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/3040-25-0x0000000002020000-0x0000000002026000-memory.dmp

Filesize
24KB

Download