917f1319cb96b1b1f562b7f34691cee2ae66132f26d1d739e2d48c02e16449b4

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
07-09-2024 01:02

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General

Target

2024-09-07_3f4b733c34563a9c6fa4e4cd2394168a_cryptolocker.exe
Size

48KB
MD5

3f4b733c34563a9c6fa4e4cd2394168a
SHA1

2741d091ca59090e737ce2622d091944548bde7e
SHA256

917f1319cb96b1b1f562b7f34691cee2ae66132f26d1d739e2d48c02e16449b4
SHA512

3192915bd5c59be73dea6c0200f33382cf4c9ff8d8f23bcfd81209ac479d4a0390c81ddd0f737ff07085e9355880c5cdc7a1b80bf2a670490c007c8cd65c8bcb
SSDEEP

768:y6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpjbXOQ69zbjlAAX5e9zrt:y6QFElP6n+gMQMOtEvwDpjbizbR9XwzR

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-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation	2024-09-07_3f4b733c34563a9c6fa4e4cd2394168a_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4520	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	2024-09-07_3f4b733c34563a9c6fa4e4cd2394168a_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 4016 wrote to memory of 4520	4016	2024-09-07_3f4b733c34563a9c6fa4e4cd2394168a_cryptolocker.exe	84
PID 4016 wrote to memory of 4520	4016	2024-09-07_3f4b733c34563a9c6fa4e4cd2394168a_cryptolocker.exe	84
PID 4016 wrote to memory of 4520	4016	2024-09-07_3f4b733c34563a9c6fa4e4cd2394168a_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-09-07_3f4b733c34563a9c6fa4e4cd2394168a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-07_3f4b733c34563a9c6fa4e4cd2394168a_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4016
- 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:4520

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

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Downloads

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

Filesize
48KB

MD5
44eacb46c307464fba42be7453254dd4

SHA1
aa358ea65929ab2eb14133f5d5aca78a9d42704c

SHA256
c221a7f2d31e0ee2da165863ecb1a2cf45b37a8fc1aceafc82e18a36c4e552f5

SHA512
dae38d6899e2b1f70f1c943256566e2c7f329375c76279ad0780588d3dc300164d78843aeb346c48d9010ce90891b798e6de7e3387e47b031f7b8ef653e941f0

Download Submit
memory/4016-0-0x0000000000690000-0x0000000000696000-memory.dmp

Filesize
24KB

Download
memory/4016-1-0x0000000000690000-0x0000000000696000-memory.dmp

Filesize
24KB

Download
memory/4016-2-0x0000000000780000-0x0000000000786000-memory.dmp

Filesize
24KB

Download
memory/4520-17-0x00000000004C0000-0x00000000004C6000-memory.dmp

Filesize
24KB

Download
memory/4520-18-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download