7d5b85e958beac9bd2aee8f2799b3b529acb78106588c355987b25ee0e2a47a6

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
01/07/2024, 21:34

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General

Target

2024-07-01_bc7edf7fc917207928b49ffdce481798_cryptolocker.exe
Size

45KB
MD5

bc7edf7fc917207928b49ffdce481798
SHA1

71d7da8400b9e8f12be44481bc3fba1e0dd5ab59
SHA256

7d5b85e958beac9bd2aee8f2799b3b529acb78106588c355987b25ee0e2a47a6
SHA512

9b1542cd87cfb605700a6c252a1070a35f8617d78fa395f1811de019e6b1eeb47ebd0db154a61f5db9e9b628fee00512c3774b87699d82fc7a9db3cbff72ec48
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBVaD3TP7DFHuRcD9Hi:X6QFElP6n+gJQMOtEvwDpjBmzDkWDti

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000500000002326f-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000500000002326f-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-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation	2024-07-01_bc7edf7fc917207928b49ffdce481798_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1500	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 2520 wrote to memory of 1500	2520	2024-07-01_bc7edf7fc917207928b49ffdce481798_cryptolocker.exe	81
PID 2520 wrote to memory of 1500	2520	2024-07-01_bc7edf7fc917207928b49ffdce481798_cryptolocker.exe	81
PID 2520 wrote to memory of 1500	2520	2024-07-01_bc7edf7fc917207928b49ffdce481798_cryptolocker.exe	81

C:\Users\Admin\AppData\Local\Temp\2024-07-01_bc7edf7fc917207928b49ffdce481798_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-07-01_bc7edf7fc917207928b49ffdce481798_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2520
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1500

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
45KB

MD5
de94f6e8a8f46cbae9d72da05cd9012c

SHA1
c0342c33055c108e160b6ef2d1758156dce53e4c

SHA256
409f00f5de6a2bc70f45f3701563bc069ca28e8a55a3616e9b17c3f68e1f5f59

SHA512
ed5b4c55d89a4e20c4677c7fd4eea51d9646bde15732f462796e2703ce8db43286126ebdb7352701cf1ef2c9602702a7b89e48462e8626aa74329a08704c6c3a

Download Submit
memory/1500-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/1500-23-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2520-0-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/2520-2-0x00000000006D0000-0x00000000006D6000-memory.dmp

Filesize
24KB

Download
memory/2520-8-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download