85b642d4185a71024545a4d109d11a9877601541c752a402cc32655b10e33026

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
19-09-2024 06:26

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General

Target

2024-09-19_620af12d841baa27429805459035a5f4_cryptolocker.exe
Size

39KB
MD5

620af12d841baa27429805459035a5f4
SHA1

2a0acd6f36fe621aea58582e1ca8fe554c4b6f1c
SHA256

85b642d4185a71024545a4d109d11a9877601541c752a402cc32655b10e33026
SHA512

6de27053cac753df476f8201eaec7956d24d3dcbba7897d0a7602c658b65544e6fdc55c1d46f63718d0006797c34b7115ec08ef3bc4cfb7a07222f2ffde5698d
SSDEEP

768:btB9g/WItCSsAGjX7r3BPOMHocM4vUUOmJ++:btB9g/xtCSKfxLIcMzUw+

Score

7^/10

discovery

Malware Config

Signatures

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-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation	gewos.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation	2024-09-19_620af12d841baa27429805459035a5f4_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3552	gewos.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-19_620af12d841baa27429805459035a5f4_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	gewos.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4040 wrote to memory of 3552	4040	2024-09-19_620af12d841baa27429805459035a5f4_cryptolocker.exe	82
PID 4040 wrote to memory of 3552	4040	2024-09-19_620af12d841baa27429805459035a5f4_cryptolocker.exe	82
PID 4040 wrote to memory of 3552	4040	2024-09-19_620af12d841baa27429805459035a5f4_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-09-19_620af12d841baa27429805459035a5f4_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-19_620af12d841baa27429805459035a5f4_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4040
- C:\Users\Admin\AppData\Local\Temp\gewos.exe
  "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3552

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\gewos.exe

Filesize
39KB

MD5
e6a3f1e4ced9866324a2b16ba18aa1bd

SHA1
cc123b54fb48f2477a7fcf91fe39a36e75844643

SHA256
2ff52175ebc28b04f2672f3e77ba583295225929a51f2c4560cbb43f9949ccca

SHA512
db87cc1a5ded39eb7ab931227c2f59b9bfc5102ba896437c39cc25ee439ab04fbd1216df2a2433cf8ef9642f93f9afd38433c5900c6a95142012794652843f8f

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

Filesize
184B

MD5
210b8e5be8b3968a139ecbd7cbdae809

SHA1
25589f2af874a76a645c219f4cfc9b3418be1806

SHA256
54b92a5ddbc4381a3be68839dc53282b6b4d6010607ab289011f899ca241846e

SHA512
e08aec1626b79a7c60f269d5b8f4398f0c91a66e516cd760e0337fdf98fcf7c0be49dbea86e56383199204500058e45a8b2907684b3c3143ea7369bd97a24e39

Download Submit
memory/3552-25-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/4040-0-0x0000000002340000-0x0000000002346000-memory.dmp

Filesize
24KB

Download
memory/4040-1-0x0000000002340000-0x0000000002346000-memory.dmp

Filesize
24KB

Download
memory/4040-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download