0fc74701e91322421409f6e700b515963c0c58ca2eba5ac9277931f01f8dd4c1

Analysis

max time kernel
142s
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
22-05-2024 02:26

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-05-22_2aa0083f422bac627f7b57f0bf551dc3_cryptolocker.exe
Size

36KB
MD5

2aa0083f422bac627f7b57f0bf551dc3
SHA1

44b75b6c6ca036644bf2211107d37396dee8a56e
SHA256

0fc74701e91322421409f6e700b515963c0c58ca2eba5ac9277931f01f8dd4c1
SHA512

bbe6649843bb37acad76fc3d86f6c77dbd1523bdab612aead9598194a3f509db6d6d22b684958ba616aae8b301d26658009300009b5629ec7f133bfdb609d53c
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4l8tFFxE2B0qZvvb:btB9g/WItCSsAGjX7r3BTZvvb

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

Processes:

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

Processes:

2024-05-22_2aa0083f422bac627f7b57f0bf551dc3_cryptolocker.exegewos.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	2024-05-22_2aa0083f422bac627f7b57f0bf551dc3_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

Processes:

gewos.exe

pid process

4456 gewos.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
4456	gewos.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

2024-05-22_2aa0083f422bac627f7b57f0bf551dc3_cryptolocker.exe

description	pid	process	target process
PID 4296 wrote to memory of 4456	4296	2024-05-22_2aa0083f422bac627f7b57f0bf551dc3_cryptolocker.exe	gewos.exe
PID 4296 wrote to memory of 4456	4296	2024-05-22_2aa0083f422bac627f7b57f0bf551dc3_cryptolocker.exe	gewos.exe
PID 4296 wrote to memory of 4456	4296	2024-05-22_2aa0083f422bac627f7b57f0bf551dc3_cryptolocker.exe	gewos.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-22_2aa0083f422bac627f7b57f0bf551dc3_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-22_2aa0083f422bac627f7b57f0bf551dc3_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4296

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:4456

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=3896 --field-trial-handle=2744,i,16362475727591565961,3676688664819797550,262144 --variations-seed-version /prefetch:8
1⤵
PID:2020

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
36KB

MD5
4a7a16556b2ad3444701e55b43f6ffe7

SHA1
1f6ffd814693e6bdf54bfd587ba8fa41706521e1

SHA256
afe8ec7e47d9aa09da18415834b63c266ef31366d4d93c62acc66560940c07c0

SHA512
a9645d7f2786f85aaed66a41e6747842ef25e8b1b49185570b98f8270c8a05f3d083c1abe6c404747dccd5e926209ea17082596ea2e6ebc2eafd037fd52c9960

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

Filesize
185B

MD5
c5e0e5732feee87e65dd3c36e6f674fd

SHA1
41e03fb25d3dc69a9f2cae1a9e4e63b1fa69058d

SHA256
21751bc8dfd1836c6cb2c5e4115ec19fcc6c74aade3f2d4292f79a0685790cf2

SHA512
1863f67f5827380f3a775ee60bb64fd1fe5d333d959b74d9eab5afafc095bbd9608b7e7eb9440cf40fe645598e0d88d4b53decc43a8c45e57a4ad28df110c4a2

Download Submit
memory/4296-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4296-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4296-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4456-25-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download