0295268340e502250ddbf6ee554d22572ce699a9937412eb9f2f4fbc734c7ae7

Analysis

max time kernel
91s
max time network
124s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
13/02/2024, 07:25

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General

Target

2024-02-13_0f3acc4a58b9240588224e7d55d0bf1c_cryptolocker.exe
Size

56KB
MD5

0f3acc4a58b9240588224e7d55d0bf1c
SHA1

54869ccb7c4793aacdea352d91376a78e6653cdf
SHA256

0295268340e502250ddbf6ee554d22572ce699a9937412eb9f2f4fbc734c7ae7
SHA512

3bdb2b0ca1012aeb45ffe88419de6c6775d4016cca4a7c3cfd475d13bfc66453015a3750d5ae065fc6cf7662eaa186ef12f41d43921f7e253eeb4b6d0ec21ab5
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHK:btng54SMLr+/AO/kIhfoKMHdH

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002304b-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-1-5-21-1232405761-1209240240-3206092754-1000\Control Panel\International\Geo\Nation	2024-02-13_0f3acc4a58b9240588224e7d55d0bf1c_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

pid	Process
3036	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 3996 wrote to memory of 3036	3996	2024-02-13_0f3acc4a58b9240588224e7d55d0bf1c_cryptolocker.exe	85
PID 3996 wrote to memory of 3036	3996	2024-02-13_0f3acc4a58b9240588224e7d55d0bf1c_cryptolocker.exe	85
PID 3996 wrote to memory of 3036	3996	2024-02-13_0f3acc4a58b9240588224e7d55d0bf1c_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-02-13_0f3acc4a58b9240588224e7d55d0bf1c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-13_0f3acc4a58b9240588224e7d55d0bf1c_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3996
- 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:3036

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
56KB

MD5
1e1657cabc18203a2c01bc89c559b095

SHA1
6879855f4a5e4512d80c69c095b455706ddc3a76

SHA256
332cf42193e454f3917fd70216e31e5553837fe45f775868cb2a1a73d6f02020

SHA512
12a6e3ea85ffb48c6caee81dee2a66bdac3cb068a7186c4c73566a4c4ace7bb46b8c932dbd873b77b29cac6268f41f6d97a2386e5a18753da77901aeaec75564

Download Submit
memory/3036-23-0x0000000002160000-0x0000000002166000-memory.dmp

Filesize
24KB

Download
memory/3996-0-0x0000000002150000-0x0000000002156000-memory.dmp

Filesize
24KB

Download
memory/3996-1-0x0000000002150000-0x0000000002156000-memory.dmp

Filesize
24KB

Download
memory/3996-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download