3274b5564ec1f7c6bdc998889f90c2654c06f26a3dc01a5397648eab2c34384b

Analysis

max time kernel
148s
max time network
151s
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, 06:25

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General

Target

2024-03-08_2407ce3060574074a069b9937e4266d5_cryptolocker.exe
Size

38KB
MD5

2407ce3060574074a069b9937e4266d5
SHA1

5a5b5cfb9a109e9cca00b57a9f8393c794b4f196
SHA256

3274b5564ec1f7c6bdc998889f90c2654c06f26a3dc01a5397648eab2c34384b
SHA512

f8688519e55189a4ba353825c93ebcb6d0571cc499ee0a3f8ac28e3093f7dfbffefcef752f8fd2f3ea9e2a7f7241c099b8c9780e544bbadd0cc46462d2bc796e
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXunrkwIN:btB9g/WItCSsAGjX7e9N0hunrkF

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000001ebc7-12.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-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation	2024-03-08_2407ce3060574074a069b9937e4266d5_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

pid	Process
3080	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 540 wrote to memory of 3080	540	2024-03-08_2407ce3060574074a069b9937e4266d5_cryptolocker.exe	88
PID 540 wrote to memory of 3080	540	2024-03-08_2407ce3060574074a069b9937e4266d5_cryptolocker.exe	88
PID 540 wrote to memory of 3080	540	2024-03-08_2407ce3060574074a069b9937e4266d5_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-03-08_2407ce3060574074a069b9937e4266d5_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-08_2407ce3060574074a069b9937e4266d5_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:540
- 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:3080

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
1e21715ea3dd4b48e07b5e02c4eeaeb6

SHA1
2b96e4d6c8dfe16ed41aee77ecc0c68bd3d5d984

SHA256
efeb1cbde2de99a9fc35c91bb0db6703f0e3a3da4bab704e76ef6f5af3ee586c

SHA512
b75a58906d6747c77009658eed8f39e6767fa07c734177db5badc12e7502178438785da3f36c7e3a2e80b20c37018fee8623c29fe594e3a0aaa6c5a294c21c0c

Download Submit
memory/540-0-0x0000000000780000-0x0000000000786000-memory.dmp

Filesize
24KB

Download
memory/540-1-0x0000000000780000-0x0000000000786000-memory.dmp

Filesize
24KB

Download
memory/540-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/3080-20-0x0000000002E90000-0x0000000002E96000-memory.dmp

Filesize
24KB

Download