5786cb3657c7e96247fc0d2218e7daa9ec5824ae4a99f4ecbe6bfae993fcc83d

Analysis

max time kernel
148s
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
05-09-2024 12:38

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General

Target

2024-09-05_fa36b5405f838ba0504482961b0320e0_cryptolocker.exe
Size

43KB
MD5

fa36b5405f838ba0504482961b0320e0
SHA1

928d5245b510cf2661f2b6b8763bb12a0e90199c
SHA256

5786cb3657c7e96247fc0d2218e7daa9ec5824ae4a99f4ecbe6bfae993fcc83d
SHA512

7ef164ae1d3fea069c45a2bb4e59b7bff034c29f4668c1d069266e3f124650a9b7192a349581bb6ab72dba718bd970649a76a03aab571734710c684abe8da1af
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaac4HK/wSvuQTCyD/954:X6QFElP6n+gJQMOtEvwDpjBsYK/fbDFy

Score

7^/10

discovery

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_fa36b5405f838ba0504482961b0320e0_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1320	asih.exe

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_fa36b5405f838ba0504482961b0320e0_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 2376 wrote to memory of 1320	2376	2024-09-05_fa36b5405f838ba0504482961b0320e0_cryptolocker.exe	86
PID 2376 wrote to memory of 1320	2376	2024-09-05_fa36b5405f838ba0504482961b0320e0_cryptolocker.exe	86
PID 2376 wrote to memory of 1320	2376	2024-09-05_fa36b5405f838ba0504482961b0320e0_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-09-05_fa36b5405f838ba0504482961b0320e0_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-05_fa36b5405f838ba0504482961b0320e0_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2376
- 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:1320

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
43KB

MD5
5c3af024edbd911ed9af262a6af63af8

SHA1
f25733c4cc9f797fa0e5b8d1a2a460f4a7abcb3d

SHA256
017be7a31a3e6d0284b3492a91b59807d039c75f06a70e60eba130b17754252a

SHA512
fc77f9df2110aff91fa912c23e91471aca8f6df438ef6faa5aef545a53357409593dc4f59244e075a23133eba3414780fdb94c4ec1503df7979db66aa3cec6f1

Download Submit
memory/1320-17-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/1320-23-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/2376-0-0x0000000002310000-0x0000000002316000-memory.dmp

Filesize
24KB

Download
memory/2376-1-0x0000000002310000-0x0000000002316000-memory.dmp

Filesize
24KB

Download
memory/2376-2-0x0000000002220000-0x0000000002226000-memory.dmp

Filesize
24KB

Download