108e1b80aa88cd63ca2f6f43762e6b5bce09d8a9c676efff6f2bbb6abd309ca0

Analysis

max time kernel
93s
max time network
123s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
10/04/2024, 03:24

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General

Target

2024-04-10_05315f482713e270bea2a267e5253203_cryptolocker.exe
Size

36KB
MD5

05315f482713e270bea2a267e5253203
SHA1

1a0642d5161860c38d7eb04f90883b7e1bb8663b
SHA256

108e1b80aa88cd63ca2f6f43762e6b5bce09d8a9c676efff6f2bbb6abd309ca0
SHA512

847dc7cf17b532b2ff0fa421ed6baa6030abb738b13490f7c8fc6858376a9f351f4c63b38677a6c7e70344c10390bf777eb536885921d6d2b59a4fb8394d4ac3
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4l8tFFxE2B0q8bC:btB9g/WItCSsAGjX7r3BTAC

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00090000000226e5-12.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	2024-04-10_05315f482713e270bea2a267e5253203_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
2888	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 3256 wrote to memory of 2888	3256	2024-04-10_05315f482713e270bea2a267e5253203_cryptolocker.exe	89
PID 3256 wrote to memory of 2888	3256	2024-04-10_05315f482713e270bea2a267e5253203_cryptolocker.exe	89
PID 3256 wrote to memory of 2888	3256	2024-04-10_05315f482713e270bea2a267e5253203_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-04-10_05315f482713e270bea2a267e5253203_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-10_05315f482713e270bea2a267e5253203_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3256
- 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:2888

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
36KB

MD5
b875cedd50e99fbee2ebc8c0d712d08a

SHA1
1f480e211f08352368a81d80e913e77dd436466c

SHA256
2289e6afe5077256281687b6215dd42fb552f17c70e14242fdf134860f74b651

SHA512
b842aa6e7749c2c92a0eeb7db596671dcaea95c35c54b59d0992d48c3ca7d2623a2cba7331249233ff34c37e6b58076d8d25cf0e757fa076e10547864f8e507f

Download Submit
memory/2888-21-0x0000000002D50000-0x0000000002D56000-memory.dmp

Filesize
24KB

Download
memory/3256-0-0x0000000002330000-0x0000000002336000-memory.dmp

Filesize
24KB

Download
memory/3256-1-0x0000000002330000-0x0000000002336000-memory.dmp

Filesize
24KB

Download
memory/3256-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download