9951aff5b44efb3850fee578e8d6dbc6637ed49512655066713f016de2fe10c2

Analysis

max time kernel
144s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
21/02/2024, 14:42

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General

Target

2024-02-21_7e6e384f14e83024e37d0a99e4cfbd65_cryptolocker.exe
Size

60KB
MD5

7e6e384f14e83024e37d0a99e4cfbd65
SHA1

45496cb518f0f6804e01359106e676cee2482ea4
SHA256

9951aff5b44efb3850fee578e8d6dbc6637ed49512655066713f016de2fe10c2
SHA512

3497982f9cd0e24a2f26795b830a4c01eb9b9b842a850870bd8f7791b4d1f79f83c7714e5335b3a0976adeea93437a59445e0d7b0e060263c6290b58af227748
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHNi:btng54SMLr+/AO/kIhfoKMHdl

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002312d-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-1-5-21-3844919115-497234255-166257750-1000\Control Panel\International\Geo\Nation	2024-02-21_7e6e384f14e83024e37d0a99e4cfbd65_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3844919115-497234255-166257750-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

pid	Process
2864	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 2832 wrote to memory of 2864	2832	2024-02-21_7e6e384f14e83024e37d0a99e4cfbd65_cryptolocker.exe	81
PID 2832 wrote to memory of 2864	2832	2024-02-21_7e6e384f14e83024e37d0a99e4cfbd65_cryptolocker.exe	81
PID 2832 wrote to memory of 2864	2832	2024-02-21_7e6e384f14e83024e37d0a99e4cfbd65_cryptolocker.exe	81

C:\Users\Admin\AppData\Local\Temp\2024-02-21_7e6e384f14e83024e37d0a99e4cfbd65_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-21_7e6e384f14e83024e37d0a99e4cfbd65_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2832
- 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:2864

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
13f1439f797df84ca4617eab8c604a22

SHA1
2323d3d6ef7dc19ee7ac8ce2293c34b5097eb321

SHA256
ac9f1731f27327e4a5ea7944344cfada2c08a1d41f5b82630f7ff3f62a0d7ae8

SHA512
ff811ea08e1703a0d6c25f78e28a24ef829da536bb072f42c63bd09b767adcba0e38147b6055d0f0617b5af6b56bf4a7c3382bc2b66f17a21400db461214f60a

Download Submit
memory/2832-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/2832-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/2832-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2864-20-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download