8da06c6ea01bf8058cb657622713c1bdde4ec08aa59f0155e23b82421c14f73f

Analysis

max time kernel
138s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
18/04/2024, 12:25

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

2024-04-18_0b5b2233c7d273523a39c67eae33a3c5_cryptolocker.exe
Size

44KB
MD5

0b5b2233c7d273523a39c67eae33a3c5
SHA1

2fe660745b351932c8b83e125f242cabd9ca8283
SHA256

8da06c6ea01bf8058cb657622713c1bdde4ec08aa59f0155e23b82421c14f73f
SHA512

ec95b2060688cd16ac5cab4448bd1e994fe85f5a9ae2ba6fd4ed5e9129d9a52a98f6475279b30c26b5b3800cdd23ecdecb7935ccc06fc6a7edbf1dc04ebd9d85
SSDEEP

768:btB9g/WItCSsAGjX7r3BPOMHoc/QQJPCj:btB9g/xtCSKfxLIc/k

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023262-12.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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	2024-04-18_0b5b2233c7d273523a39c67eae33a3c5_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

pid	Process
4956	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 5112 wrote to memory of 4956	5112	2024-04-18_0b5b2233c7d273523a39c67eae33a3c5_cryptolocker.exe	91
PID 5112 wrote to memory of 4956	5112	2024-04-18_0b5b2233c7d273523a39c67eae33a3c5_cryptolocker.exe	91
PID 5112 wrote to memory of 4956	5112	2024-04-18_0b5b2233c7d273523a39c67eae33a3c5_cryptolocker.exe	91

C:\Users\Admin\AppData\Local\Temp\2024-04-18_0b5b2233c7d273523a39c67eae33a3c5_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-18_0b5b2233c7d273523a39c67eae33a3c5_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5112
- 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:4956

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=5164 --field-trial-handle=3084,i,4016110471176367543,14287608422419064331,262144 --variations-seed-version /prefetch:8
1⤵
PID:2800

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

Loading Replay Monitor...

Downloads

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

Filesize
44KB

MD5
5d579bdfefac19ac409384074e71e841

SHA1
d031d467faf4a370a4458f1ee2a41a757585caa0

SHA256
00a80faa00c9428f768cd5b3ceabd023dc45dd789db7c3fe2c8d409f943d035a

SHA512
59c1793dda4424038eddab12e98587ca7a8b9726f98c379b9de43bfeee4089aef7a51048169cf9e26937bf044ce47b707876d556591f246a06d0d331eab9acce

Download Submit
memory/4956-19-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/5112-0-0x00000000021E0000-0x00000000021E6000-memory.dmp

Filesize
24KB

Download
memory/5112-1-0x00000000021E0000-0x00000000021E6000-memory.dmp

Filesize
24KB

Download
memory/5112-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download