477c1ec0dcaf48e11a66168e543a5c75debc352e7fa73605432556c045567e2b

Analysis

max time kernel
183s
max time network
200s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
18/01/2024, 22:42

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General

Target

2024-01-18_4768217996ea2f4901bb056b7275780c_cryptolocker.exe
Size

52KB
MD5

4768217996ea2f4901bb056b7275780c
SHA1

fee8f4dd7e5b65f37a42d8ef21b7db69c841666c
SHA256

477c1ec0dcaf48e11a66168e543a5c75debc352e7fa73605432556c045567e2b
SHA512

8abe217c7b7fed856875c5da5873bfa05bfe3ac801e843883b95829eaf932650f1085cc18dff086787cd7913e00b499faab64c0af49145fd6cf088a7a63669df
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/BtOOtEvwDpjBVaD3E09vaTiSfQaV2LP:X6QFElP6n+gJBMOtEvwDpjBtE1yILP

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0006000000023213-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0006000000023213-12.dat	CryptoLocker_set1

Checks computer location settings 2 TTPs 1 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-1-5-21-635608581-3370340891-292606865-1000\Control Panel\International\Geo\Nation	2024-01-18_4768217996ea2f4901bb056b7275780c_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3296	asih.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 212 wrote to memory of 3296	212	2024-01-18_4768217996ea2f4901bb056b7275780c_cryptolocker.exe	90
PID 212 wrote to memory of 3296	212	2024-01-18_4768217996ea2f4901bb056b7275780c_cryptolocker.exe	90
PID 212 wrote to memory of 3296	212	2024-01-18_4768217996ea2f4901bb056b7275780c_cryptolocker.exe	90

C:\Users\Admin\AppData\Local\Temp\2024-01-18_4768217996ea2f4901bb056b7275780c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-18_4768217996ea2f4901bb056b7275780c_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:212
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3296

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\asih.exe

Filesize
52KB

MD5
ddc58d7dbc48a9776b1653a09843a1e8

SHA1
15d208bb8b5eb4442fb7ced9bfe7bed2e5c42450

SHA256
229a144d810248bc2870dd309003883bcee089f7e5f04e17575f642a36c3a68c

SHA512
ec5445569e8eb5ee9f31b45b7c0be383cb294da45f23284e34450cf003c20a915fb3369a859e4e04c0c2e785b52cb107e32adb69a6dcc320c64303a3584a9253

Download Submit
memory/212-0-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/212-1-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/212-2-0x0000000000810000-0x0000000000816000-memory.dmp

Filesize
24KB

Download
memory/3296-17-0x0000000000730000-0x0000000000736000-memory.dmp

Filesize
24KB

Download
memory/3296-18-0x0000000000760000-0x0000000000766000-memory.dmp

Filesize
24KB

Download