69d1102192203a7eb8e7d290088a79af0a3f23b2b4a9af7d00f305414eebd9aa

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
29/05/2024, 15:27

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General

Target

2024-05-29_332b29210b7659f23979f28b30fcfde5_cryptolocker.exe
Size

38KB
MD5

332b29210b7659f23979f28b30fcfde5
SHA1

d1759ca1c48f7f26fb6f46298a618f7dfc5e3cd5
SHA256

69d1102192203a7eb8e7d290088a79af0a3f23b2b4a9af7d00f305414eebd9aa
SHA512

5fdc7c925b4bfcff4402c70e0b1bf180d33dc6ee222a391e77b224d24b3eea3467bfafa0c56ab121157fd4c9b1776c2198a31bbf4ba63acb42bc4412b00d9f01
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXunRSy3R:btB9g/WItCSsAGjX7e9N0hunRvB

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000600000002327c-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-1-5-21-540404634-651139247-2967210625-1000\Control Panel\International\Geo\Nation	2024-05-29_332b29210b7659f23979f28b30fcfde5_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

pid	Process
3476	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 1544 wrote to memory of 3476	1544	2024-05-29_332b29210b7659f23979f28b30fcfde5_cryptolocker.exe	82
PID 1544 wrote to memory of 3476	1544	2024-05-29_332b29210b7659f23979f28b30fcfde5_cryptolocker.exe	82
PID 1544 wrote to memory of 3476	1544	2024-05-29_332b29210b7659f23979f28b30fcfde5_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-05-29_332b29210b7659f23979f28b30fcfde5_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-29_332b29210b7659f23979f28b30fcfde5_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1544
- 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:3476

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
38KB

MD5
73bc38f7679d250b34d33a09f1963377

SHA1
d4d4e310fd6b13d87489127d635e9622d7668377

SHA256
ef88c0a2b56dece2bb72d998ba56317a440e2ef03e99c425bdd0a6de0fddb0c5

SHA512
4a81e75277fac5e5a0444dd59934d54b8a6e68e584d6c51b92f89d3137671dbdf7f78ac59890eed13d9db5e0004b0c0a4a5dc3d228c6cda752f611dde86c486b

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

Filesize
185B

MD5
7ca85abf231838c2ec9b163cba3c4273

SHA1
a75020361f7ac6e7163ec94d11e6d39cb63d6e20

SHA256
ab3ee3007f85f3aa1e68b3cce845daef049029d3425f1db8afd979e6b36a7c09

SHA512
a2219d64ae51632a9cc2da69d6425dff095b53401e97f834a62dd6dc624f3effb0984f3fe7063907c191fa019279964c4686a47896fbaef08577e2e6ec180109

Download Submit
memory/1544-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/1544-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1544-7-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/3476-25-0x00000000020F0000-0x00000000020F6000-memory.dmp

Filesize
24KB

Download