c92406fb0847e8b3cb4d6abaadc60a4bb1416f80a168af602ced9cb1821f496a

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
11-09-2024 05:24

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General

Target

2024-09-11_3fe86e9fcf6f6d40ee5ba00d8b5ac4d8_cryptolocker.exe
Size

86KB
MD5

3fe86e9fcf6f6d40ee5ba00d8b5ac4d8
SHA1

c6c24cab459902380c77d45edd6257c14192dbba
SHA256

c92406fb0847e8b3cb4d6abaadc60a4bb1416f80a168af602ced9cb1821f496a
SHA512

dced440efd45dff04c193a081db62fa7868e247a7280f5c2b5a5cd0cb60338aca4d6e53ca50463829a05fc35b1a488504faa973ceb373e80cc5f3751e85750b7
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjyaLccVNl6aax:V6a+pOtEvwDpjvp8

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-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	2024-09-11_3fe86e9fcf6f6d40ee5ba00d8b5ac4d8_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	2024-09-11_3fe86e9fcf6f6d40ee5ba00d8b5ac4d8_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 2528 wrote to memory of 4520	2528	2024-09-11_3fe86e9fcf6f6d40ee5ba00d8b5ac4d8_cryptolocker.exe	85
PID 2528 wrote to memory of 4520	2528	2024-09-11_3fe86e9fcf6f6d40ee5ba00d8b5ac4d8_cryptolocker.exe	85
PID 2528 wrote to memory of 4520	2528	2024-09-11_3fe86e9fcf6f6d40ee5ba00d8b5ac4d8_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-09-11_3fe86e9fcf6f6d40ee5ba00d8b5ac4d8_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-11_3fe86e9fcf6f6d40ee5ba00d8b5ac4d8_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2528
- 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

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Downloads

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

Filesize
87KB

MD5
39c1bbc46424bbb7952f428ced0f240b

SHA1
249702a6ff48c2c5255131be8e762018db8890e8

SHA256
42d15718d883a2690889c40852a6bc655fa56f09027c65fe1b251288a0a9dcfd

SHA512
e9e50287733f069e62c85361ea6034c3d096b6ec67bb202e0fc3de39bc4858e1f5b466cf0b3df294baee05f90b959c1205f71446371dedf593602c4f78531f97

Download Submit
memory/2528-0-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/2528-1-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/2528-2-0x00000000020E0000-0x00000000020E6000-memory.dmp

Filesize
24KB

Download
memory/4520-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/4520-23-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download