32b90b6485e9f7519388115d6dcd33f9d857f3d9b9ee104e6e3545c0891dd596

Analysis

max time kernel
148s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
25/02/2024, 06:10

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General

Target

2024-02-25_e93dbae28098f82eb28c13525a9091a1_cryptolocker.exe
Size

47KB
MD5

e93dbae28098f82eb28c13525a9091a1
SHA1

807c9d9b090c24e24218d5478ed423c0c423ddf4
SHA256

32b90b6485e9f7519388115d6dcd33f9d857f3d9b9ee104e6e3545c0891dd596
SHA512

b4468f4ed1410336df18443cef197bf38649b1ce5ddb0d57e440f5e1dfe1138b01a2974035691c845128fe0575f92021c5e6dbb6379a969cc39e3958a0dd13fe
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpjeJQ7suIlsw92KFXckdpv6:V6QFElP6n+gMQMOtEvwDpjeJQ7pojakm

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001fc40-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001fc40-12.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-1-5-21-3316742141-2240921845-2885234760-1000\Control Panel\International\Geo\Nation	2024-02-25_e93dbae28098f82eb28c13525a9091a1_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2232	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 2672 wrote to memory of 2232	2672	2024-02-25_e93dbae28098f82eb28c13525a9091a1_cryptolocker.exe	86
PID 2672 wrote to memory of 2232	2672	2024-02-25_e93dbae28098f82eb28c13525a9091a1_cryptolocker.exe	86
PID 2672 wrote to memory of 2232	2672	2024-02-25_e93dbae28098f82eb28c13525a9091a1_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-02-25_e93dbae28098f82eb28c13525a9091a1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-25_e93dbae28098f82eb28c13525a9091a1_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2672
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2232

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
47KB

MD5
601794b66dfb8c3c08a279650186f223

SHA1
0f3e4bd6e7d056175b46bb90a8aca525be1cc94b

SHA256
6cac30564087985b40f042e68c0a5cb0988c00b1eda4388b135b1296db79cd5c

SHA512
6751f251c0e6de78c0dfa9cd6d3774794598241169f03bb8c5c35ce9ad85d3168a1dd14684e9855ba0b93e3f5c6dfa15d58c00fa3174cde4087001e13f8248d3

Download Submit
memory/2232-18-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/2232-17-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/2672-0-0x00000000007B0000-0x00000000007B6000-memory.dmp

Filesize
24KB

Download
memory/2672-1-0x00000000007B0000-0x00000000007B6000-memory.dmp

Filesize
24KB

Download
memory/2672-2-0x00000000007D0000-0x00000000007D6000-memory.dmp

Filesize
24KB

Download