9c1de734620ff27a073cb426fcf81bf88dc275a736682069edb90cb5341665eb

Analysis

max time kernel
148s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
22/04/2024, 11:08

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-04-22_e1f7d105de09865eb758ff3c25432e74_cryptolocker.exe
Size

49KB
MD5

e1f7d105de09865eb758ff3c25432e74
SHA1

06c08dc518b123211619a7a0f8e20090c2df9961
SHA256

9c1de734620ff27a073cb426fcf81bf88dc275a736682069edb90cb5341665eb
SHA512

556a549fee492210872e9950a0ddfc5f2f6c91cfe1932bac0263ccaf91a8fd946150051cb4eb90786d277a9ae389bceecf82b4b6473706fae027e40baad43279
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaaEqbIu55id3AMWZN:X6QFElP6n+gJQMOtEvwDpjB0GIWiWLD

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000800000001db0e-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000800000001db0e-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-1-5-21-1132431369-515282257-1998160155-1000\Control Panel\International\Geo\Nation	2024-04-22_e1f7d105de09865eb758ff3c25432e74_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2116	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 3276 wrote to memory of 2116	3276	2024-04-22_e1f7d105de09865eb758ff3c25432e74_cryptolocker.exe	84
PID 3276 wrote to memory of 2116	3276	2024-04-22_e1f7d105de09865eb758ff3c25432e74_cryptolocker.exe	84
PID 3276 wrote to memory of 2116	3276	2024-04-22_e1f7d105de09865eb758ff3c25432e74_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-04-22_e1f7d105de09865eb758ff3c25432e74_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-22_e1f7d105de09865eb758ff3c25432e74_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3276
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2116

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\asih.exe

Filesize
49KB

MD5
c6c6a08af9df39737dd0d104eaff7be9

SHA1
a94a4b5a66300804dd755ad3f576fe2f72d4518e

SHA256
a559e2b3a7fde646e260380d58c22c62a7e05e8186455d44f2624cc02fd9315d

SHA512
09069b3c26bfa17e9713767156ff1c52e43fd3c4ffc4ae6d72b3175a392fcbd4e9e96a4a72bfbaf423a60e78ebf68f44458fad57b458bc3dba7516290e159346

Download Submit
memory/2116-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/2116-20-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/3276-0-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download
memory/3276-1-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download
memory/3276-2-0x0000000000620000-0x0000000000626000-memory.dmp

Filesize
24KB

Download