9600f20f1223770db7643295b0cd173ad4c96c93b82b953ab46f05d8e92872f1

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
05-09-2024 12:27

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General

Target

2024-09-05_2ae7de7f1481a90cd496b5d349af7681_cryptolocker.exe
Size

92KB
MD5

2ae7de7f1481a90cd496b5d349af7681
SHA1

186f9ba1d0572ec83a2bbd6e849f9c451f26be0c
SHA256

9600f20f1223770db7643295b0cd173ad4c96c93b82b953ab46f05d8e92872f1
SHA512

8cde04f4d288c17e9defe164933d08ac511a6fff83a430a4336341ce741a39f96e328e08af289976926ddfe8f9c88f0eec63c57898420db3924da2ad8d6457cb
SSDEEP

1536:n6QFElP6n+g9u9cvMOtEvwDpjYYTjipvF2bx1PQAeP:n6a+1SEOtEvwDpjYYvQd2P2

Score

7^/10

discovery upx

Malware Config

Signatures

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-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	2024-09-05_2ae7de7f1481a90cd496b5d349af7681_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4392	asih.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4252-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/files/0x0009000000023449-13.dat	upx
behavioral2/memory/4252-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/4392-26-0x0000000000500000-0x0000000000510000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-05_2ae7de7f1481a90cd496b5d349af7681_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	asih.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4252 wrote to memory of 4392	4252	2024-09-05_2ae7de7f1481a90cd496b5d349af7681_cryptolocker.exe	83
PID 4252 wrote to memory of 4392	4252	2024-09-05_2ae7de7f1481a90cd496b5d349af7681_cryptolocker.exe	83
PID 4252 wrote to memory of 4392	4252	2024-09-05_2ae7de7f1481a90cd496b5d349af7681_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-09-05_2ae7de7f1481a90cd496b5d349af7681_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-05_2ae7de7f1481a90cd496b5d349af7681_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4252
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4392

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
92KB

MD5
f3a7f1fc0ced20a996572546edd13986

SHA1
2623f18db41bdf3d476fb36b13369968a7eb7184

SHA256
664ee9f7ebecc0f1791476855100b350bad7eefb9aac5a7dc1edaf0b90c4a485

SHA512
a467aaaa29784c421ff9bbcf19731a242154a72890483bf6a8872c10014617920e58f9cc9322eb00914d4fcaa5c2669ac01d0778ff8874a522f98df5737e6593

Download Submit
memory/4252-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4252-1-0x00000000021C0000-0x00000000021C6000-memory.dmp

Filesize
24KB

Download
memory/4252-2-0x00000000021C0000-0x00000000021C6000-memory.dmp

Filesize
24KB

Download
memory/4252-3-0x00000000020D0000-0x00000000020D6000-memory.dmp

Filesize
24KB

Download
memory/4252-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4392-19-0x0000000001F70000-0x0000000001F76000-memory.dmp

Filesize
24KB

Download
memory/4392-25-0x0000000001F50000-0x0000000001F56000-memory.dmp

Filesize
24KB

Download
memory/4392-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download