46d0d2b74d4333153ac6243d236c6fe8f9a295125eb4226e7d0cb3d64d77e3fb

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
13-10-2024 03:39

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-10-13_68df1c9d9362dec87a4c5e5e7db4b4fa_cryptolocker.exe
Size

92KB
MD5

68df1c9d9362dec87a4c5e5e7db4b4fa
SHA1

1b17664d3affec884665d6099e07eed0c651c63c
SHA256

46d0d2b74d4333153ac6243d236c6fe8f9a295125eb4226e7d0cb3d64d77e3fb
SHA512

798bfcd550f538b505ba2a27b0f3e21f6da194fd3cf5af38d1a0d9c024a828a7eb4c868fde4a532ce88b4580202e6b970ce8860a342edda49caee34d30b6c47e
SSDEEP

1536:n6QFElP6n+g9u9cvMOtEvwDpjYYTjipvF2bx1PQAe01:n6a+1SEOtEvwDpjYYvQd2Pb

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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	2024-10-13_68df1c9d9362dec87a4c5e5e7db4b4fa_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4900	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4492-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/files/0x000c000000023b6f-13.dat	upx
behavioral2/memory/4492-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/4900-26-0x0000000000500000-0x0000000000510000-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	2024-10-13_68df1c9d9362dec87a4c5e5e7db4b4fa_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 4492 wrote to memory of 4900	4492	2024-10-13_68df1c9d9362dec87a4c5e5e7db4b4fa_cryptolocker.exe	84
PID 4492 wrote to memory of 4900	4492	2024-10-13_68df1c9d9362dec87a4c5e5e7db4b4fa_cryptolocker.exe	84
PID 4492 wrote to memory of 4900	4492	2024-10-13_68df1c9d9362dec87a4c5e5e7db4b4fa_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-10-13_68df1c9d9362dec87a4c5e5e7db4b4fa_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-13_68df1c9d9362dec87a4c5e5e7db4b4fa_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4492
- 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:4900

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
92KB

MD5
5b1aeade949e931d148f7a2c7d421308

SHA1
606db9669dc5818e495f951af26ff7a4865834fb

SHA256
18021ba5d81bc3cf2d134e4383ff3cc0fe5cbc4b9c8e040c131ecbc8484f44fb

SHA512
1c2182ea23ca817d12cef4b8dedb6ebd86801a76e673bee6c4bede60f593ff9d3db1b0f0fd41bcac2187a875b83e71fa990029f8eff4a3f4cd47602e02031b20

Download Submit
memory/4492-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4492-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4492-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4492-3-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/4492-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4900-20-0x00000000006D0000-0x00000000006D6000-memory.dmp

Filesize
24KB

Download
memory/4900-19-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/4900-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download