6f4892176a62d0869d9a1d653e960f7c1d6fc41c1c24507319e5510213f9298a

Analysis

max time kernel
149s
max time network
151s
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, 05:28

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General

Target

2024-09-19_49c626a7894d143942a7ed54f9aa959a_cryptolocker.exe
Size

76KB
MD5

49c626a7894d143942a7ed54f9aa959a
SHA1

1d7bd88ed0a872e44636df74c4a5fa769c442740
SHA256

6f4892176a62d0869d9a1d653e960f7c1d6fc41c1c24507319e5510213f9298a
SHA512

f46c2cabf0862ed3e8e4d6b09c53cdc780df233ae01294e65b7da950c06a3cda8ed751dc0b07beb84cb167dc627056718e13047683e4cf0d19268c1b96a41924
SSDEEP

1536:P8mnK6QFElP6n+gymddpMOtEvwDpjIHsal81Gg:1nK6a+qdOOtEvwDpjF

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-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation	2024-09-19_49c626a7894d143942a7ed54f9aa959a_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
732	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3656-0-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral2/files/0x00090000000233bc-13.dat	upx
behavioral2/memory/3656-17-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral2/memory/732-25-0x0000000000500000-0x000000000050F311-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_49c626a7894d143942a7ed54f9aa959a_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 3656 wrote to memory of 732	3656	2024-09-19_49c626a7894d143942a7ed54f9aa959a_cryptolocker.exe	82
PID 3656 wrote to memory of 732	3656	2024-09-19_49c626a7894d143942a7ed54f9aa959a_cryptolocker.exe	82
PID 3656 wrote to memory of 732	3656	2024-09-19_49c626a7894d143942a7ed54f9aa959a_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-09-19_49c626a7894d143942a7ed54f9aa959a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-19_49c626a7894d143942a7ed54f9aa959a_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3656
- 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:732

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
76KB

MD5
e1fcedcb04a0331d37ba535ff741c2bc

SHA1
51a802b8eae24c889b6f61e0a3b5a86cd5d38fc2

SHA256
3201fdf53861ec33603de341115c61a88fda0d8555cf98c80d263f6735759eec

SHA512
6a7e904309890a8832144fe9303bbc19b75c089883de0bc8ad361d3c07a615201cb54c049f7e42db9546522fcd67f2f75adef1cde56738730c11f88bc9a75e47

Download Submit
memory/732-19-0x00000000007E0000-0x00000000007E6000-memory.dmp

Filesize
24KB

Download
memory/732-25-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/3656-0-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/3656-1-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/3656-2-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/3656-3-0x0000000000710000-0x0000000000716000-memory.dmp

Filesize
24KB

Download
memory/3656-17-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download