c5803a90d63deb7027eb9bc23b035f653bceafa5b0777768d9794ff5f22b12ca

Analysis

max time kernel
148s
max time network
153s
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 05:33

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General

Target

2024-09-19_b2395a2cc6831608451ce42f08f385ba_cryptolocker.exe
Size

38KB
MD5

b2395a2cc6831608451ce42f08f385ba
SHA1

267047803cb6c6b96b21038c3c8e267b645d9577
SHA256

c5803a90d63deb7027eb9bc23b035f653bceafa5b0777768d9794ff5f22b12ca
SHA512

e312731ea8df3fc252ab870801fedffae39ac570cd0dba8f9221055df452d59af7e27cec0b1699db8bd2a79b3797fff8876e977ba444f359937a72764c887594
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBVaD3TP7DFHSU:X6QFElP6n+gJQMOtEvwDpjBmzDIU

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-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\International\Geo\Nation	2024-09-19_b2395a2cc6831608451ce42f08f385ba_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4176	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	2024-09-19_b2395a2cc6831608451ce42f08f385ba_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 2044 wrote to memory of 4176	2044	2024-09-19_b2395a2cc6831608451ce42f08f385ba_cryptolocker.exe	82
PID 2044 wrote to memory of 4176	2044	2024-09-19_b2395a2cc6831608451ce42f08f385ba_cryptolocker.exe	82
PID 2044 wrote to memory of 4176	2044	2024-09-19_b2395a2cc6831608451ce42f08f385ba_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-09-19_b2395a2cc6831608451ce42f08f385ba_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-19_b2395a2cc6831608451ce42f08f385ba_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2044
- 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:4176

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
38KB

MD5
aa159f5f2f1139f3c6322ad75ea30c36

SHA1
079375225bdba9c43334d923549dc7d817d961d3

SHA256
a1bcc90773844678c2f8a2b6715294f50cc125b3d5feecd9433c68d90c1d65c2

SHA512
a3c6aaffc1edabec4678de1aad2c0c990f41f770f1121b6cb4b437668871dbd31ddf78fb8aff03db9ddd34496a818ed6ffbc0567e8234bab790602ccfb9aa49c

Download Submit
memory/2044-0-0x00000000007F0000-0x00000000007F6000-memory.dmp

Filesize
24KB

Download
memory/2044-1-0x00000000007F0000-0x00000000007F6000-memory.dmp

Filesize
24KB

Download
memory/2044-2-0x0000000000810000-0x0000000000816000-memory.dmp

Filesize
24KB

Download
memory/4176-18-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/4176-17-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download