2fa89d9ff8ada0743e2c708b281ad231da19263fecca9225a9fc0ad0dc2f4ed5

Analysis

max time kernel
88s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
29/01/2024, 03:30

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-01-29_5c258dc1bad1f8f6976c6ca2ea87a30a_cryptolocker.exe
Size

49KB
MD5

5c258dc1bad1f8f6976c6ca2ea87a30a
SHA1

ca50266db779f1b3b5763c9b12ce9a29ff1a527f
SHA256

2fa89d9ff8ada0743e2c708b281ad231da19263fecca9225a9fc0ad0dc2f4ed5
SHA512

f355e5a5179505d3b9055a255d2fe385f6b0375dd30e076ef5289285df629e145115f53b31f844ffd1f3f9846ee224eafca6672b4f103ea6def0389dd35c4533
SSDEEP

768:btB9g/WItCSsAGjX7r3BPOMHoc/QQJP5wjvaHYwiq6:btB9g/xtCSKfxLIc/E1a6

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023210-12.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-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation	2024-01-29_5c258dc1bad1f8f6976c6ca2ea87a30a_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

pid	Process
3968	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 396 wrote to memory of 3968	396	2024-01-29_5c258dc1bad1f8f6976c6ca2ea87a30a_cryptolocker.exe	86
PID 396 wrote to memory of 3968	396	2024-01-29_5c258dc1bad1f8f6976c6ca2ea87a30a_cryptolocker.exe	86
PID 396 wrote to memory of 3968	396	2024-01-29_5c258dc1bad1f8f6976c6ca2ea87a30a_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-01-29_5c258dc1bad1f8f6976c6ca2ea87a30a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-29_5c258dc1bad1f8f6976c6ca2ea87a30a_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:396
- 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:3968

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
49KB

MD5
1b891572176e54fe89870db0910aabd7

SHA1
5f46018ade1c2d055275fcd6c1f9faae89d878c7

SHA256
9ce81f42a49d170c3208f78f6aea3956341309da49a6de4839870a1ccf45e13a

SHA512
139a4b557580640ba7e9332c4fb85fe4093ee7b42e9cd474fd8cd03453c8d020c74db9a7e1f5d0be80baae101d650d0f4498f9fb42ffa64cb8d28e4d8307c840

Download Submit
memory/396-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/396-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/396-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/3968-19-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download