c8792153000becaef06cec327a79f968b55d651897a211499aea02dd050e5cbf

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
19-09-2024 06:32

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General

Target

2024-09-19_e9de9b2673c95b144c6aa7af2c84eef3_cryptolocker.exe
Size

96KB
MD5

e9de9b2673c95b144c6aa7af2c84eef3
SHA1

1b0f1c06099bf97a21f25a93edaf2c1c3ade7aa0
SHA256

c8792153000becaef06cec327a79f968b55d651897a211499aea02dd050e5cbf
SHA512

069b1bca40a6a207fbed62373535bd499ddd6dd31c8845ff325df0a10032f4ff2608f9af7e2391f52f59d66ccf1cd35869ec58558228ab3f0979ba6d96d5bbf8
SSDEEP

1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwNgp+ofI5MJ:AnBdOOtEvwDpj6zK

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-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation	2024-09-19_e9de9b2673c95b144c6aa7af2c84eef3_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3500	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1668-0-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/files/0x0003000000022ab1-13.dat	upx
behavioral2/memory/1668-18-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/memory/3500-27-0x0000000000500000-0x000000000050F000-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	2024-09-19_e9de9b2673c95b144c6aa7af2c84eef3_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 1668 wrote to memory of 3500	1668	2024-09-19_e9de9b2673c95b144c6aa7af2c84eef3_cryptolocker.exe	85
PID 1668 wrote to memory of 3500	1668	2024-09-19_e9de9b2673c95b144c6aa7af2c84eef3_cryptolocker.exe	85
PID 1668 wrote to memory of 3500	1668	2024-09-19_e9de9b2673c95b144c6aa7af2c84eef3_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-09-19_e9de9b2673c95b144c6aa7af2c84eef3_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-19_e9de9b2673c95b144c6aa7af2c84eef3_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1668
- 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:3500

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
96KB

MD5
0656978eb0fad893115e9caea4d1fb40

SHA1
dab5109e2a4b8fd3f83c2203d50868e16d418d9b

SHA256
ed01867e709c785943dcbfea905d6f4b234506db8f861397ddefb5f031b5ce87

SHA512
0a60e9abd9f55f7f6472d6a0196e69267921cec52e711ed2baf9e785185c10ffb377eb8c56687a671af519cbcfd502b1244db418399f0833efd56a861982d59c

Download Submit
memory/1668-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1668-1-0x0000000000510000-0x0000000000516000-memory.dmp

Filesize
24KB

Download
memory/1668-2-0x0000000000510000-0x0000000000516000-memory.dmp

Filesize
24KB

Download
memory/1668-3-0x0000000000530000-0x0000000000536000-memory.dmp

Filesize
24KB

Download
memory/1668-18-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/3500-20-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/3500-26-0x0000000000690000-0x0000000000696000-memory.dmp

Filesize
24KB

Download
memory/3500-27-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download