3c06f18494c1a42aca6d86b3a0cd3c31762377e1c5717ee20dbca753f856a60d

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
14/03/2024, 08:39

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General

Target

2024-03-14_7927cd6223e90e0c87bba832a703557e_cryptolocker.exe
Size

37KB
MD5

7927cd6223e90e0c87bba832a703557e
SHA1

b2b5e10777de121c24ebbeb6c8364d9262021f8a
SHA256

3c06f18494c1a42aca6d86b3a0cd3c31762377e1c5717ee20dbca753f856a60d
SHA512

88b8963fb0400b2f1c24f8f85b9c6037a7b9d0ec78eec6ec11aaad2a14e517083a457f880a8e6ae0c6bd6e7af184279339c02c87687e29cbda49dcdcd81c2703
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLam5aRIaGJ:V6QFElP6n+gMQMOtEvwDpjyaYaRO

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000c000000023157-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000c000000023157-12.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-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation	2024-03-14_7927cd6223e90e0c87bba832a703557e_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3536	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 1856 wrote to memory of 3536	1856	2024-03-14_7927cd6223e90e0c87bba832a703557e_cryptolocker.exe	85
PID 1856 wrote to memory of 3536	1856	2024-03-14_7927cd6223e90e0c87bba832a703557e_cryptolocker.exe	85
PID 1856 wrote to memory of 3536	1856	2024-03-14_7927cd6223e90e0c87bba832a703557e_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-03-14_7927cd6223e90e0c87bba832a703557e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-14_7927cd6223e90e0c87bba832a703557e_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1856
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3536

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
37KB

MD5
39982d6f39041ecaf8770756e040d694

SHA1
0045b2b469de1aa4c8200ff036b1e8a2a3e1beb8

SHA256
cacd0e9d2c354031d2eaa4ab5fc2285af31897d02ef7ccee299d949f6cb2702d

SHA512
5f2cf275019cfb0e2b02cbebdab18b499ed9f4e4c32d7a9aab8b4d50e978a0dade9241a3c3fd42818c885073da9f892d507958d15318f42a13c971eb06a32ec8

Download Submit
memory/1856-0-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/1856-1-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/1856-2-0x0000000002090000-0x0000000002096000-memory.dmp

Filesize
24KB

Download
memory/3536-17-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/3536-19-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download