c062075e82ff466fc5bcd8b117a94526c7ac1f0cada4d1067973ce86007cdfa7

Analysis

max time kernel
144s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
12-02-2024 20:21

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General

Target

2024-02-12_ce1daf63a21831fc41ad97c65f361f9a_cryptolocker.exe
Size

60KB
MD5

ce1daf63a21831fc41ad97c65f361f9a
SHA1

bce087c20423ed4836cdde01b0fb6477f5c86546
SHA256

c062075e82ff466fc5bcd8b117a94526c7ac1f0cada4d1067973ce86007cdfa7
SHA512

8a698689ae9ce49e4158f7b26d19e8663a78ef0859ba5ed43a5667ade5ee6759077f748fa63bc9c3b3e1ed9c247931376b1d7d108d53eaf9d51f184a30e511f3
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHNp:btng54SMLr+/AO/kIhfoKMHde

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:

2024-02-12_ce1daf63a21831fc41ad97c65f361f9a_cryptolocker.exegewos.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation	2024-02-12_ce1daf63a21831fc41ad97c65f361f9a_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

Processes:

gewos.exe

pid process

2296 gewos.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2296	gewos.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

2024-02-12_ce1daf63a21831fc41ad97c65f361f9a_cryptolocker.exe

description	pid	process	target process
PID 4936 wrote to memory of 2296	4936	2024-02-12_ce1daf63a21831fc41ad97c65f361f9a_cryptolocker.exe	gewos.exe
PID 4936 wrote to memory of 2296	4936	2024-02-12_ce1daf63a21831fc41ad97c65f361f9a_cryptolocker.exe	gewos.exe
PID 4936 wrote to memory of 2296	4936	2024-02-12_ce1daf63a21831fc41ad97c65f361f9a_cryptolocker.exe	gewos.exe

C:\Users\Admin\AppData\Local\Temp\2024-02-12_ce1daf63a21831fc41ad97c65f361f9a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-12_ce1daf63a21831fc41ad97c65f361f9a_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4936

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:2296

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
60KB

MD5
3581a2cf7b4d77b7bb68731ac680658a

SHA1
b93e55f11924b63ab3e12d1df34f626cc5d42201

SHA256
ce39ecd24915efcf7275134b8698f4ae8a73e2c35f9273bfd62caabe019dbe07

SHA512
f6102d3af625544722fe5cfbfe6f8a6724d3dae188e8251b2c0f4db42697e22886c5e40a8f37f51d9eef20fd96fc5d3df5c12e43f321534b74b5b2e44a79c3e6

Download Submit
memory/2296-20-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/4936-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4936-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4936-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download