e635554ed2acb52e5aee78057ab523b96533776455bf69487f14c5fc12039ccb

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
06/10/2024, 03:04

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General

Target

2024-10-06_fc36e9c9de3fb0bea5e0e8c5294eb01d_cryptolocker.exe
Size

75KB
MD5

fc36e9c9de3fb0bea5e0e8c5294eb01d
SHA1

fb3c4aac2a3540a233b15c5827c54d67e43a941e
SHA256

e635554ed2acb52e5aee78057ab523b96533776455bf69487f14c5fc12039ccb
SHA512

584f83169c9d499fd736b46c056452a395782a508c5263863a092c901cd7de1e83ab0b38e096f3fb6054118cc9479ec7e3863a8f259d687c0dd51d23af4dc53b
SSDEEP

768:u6LsoEEeegiZPvEhHSG+gZgtOOtEvwDpjeY10Y/YMsrx:u6QFElP6n+gWMOtEvwDpjJGYQbrx

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-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	2024-10-06_fc36e9c9de3fb0bea5e0e8c5294eb01d_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4484	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	2024-10-06_fc36e9c9de3fb0bea5e0e8c5294eb01d_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 4444 wrote to memory of 4484	4444	2024-10-06_fc36e9c9de3fb0bea5e0e8c5294eb01d_cryptolocker.exe	82
PID 4444 wrote to memory of 4484	4444	2024-10-06_fc36e9c9de3fb0bea5e0e8c5294eb01d_cryptolocker.exe	82
PID 4444 wrote to memory of 4484	4444	2024-10-06_fc36e9c9de3fb0bea5e0e8c5294eb01d_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-10-06_fc36e9c9de3fb0bea5e0e8c5294eb01d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-06_fc36e9c9de3fb0bea5e0e8c5294eb01d_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4444
- 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:4484

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
75KB

MD5
589d075818a545e52544447c9bfd18d4

SHA1
71514935a2593c4e4ac3e0be16e85dcf3d725728

SHA256
37c6973ec39fc9bfbb03728c450019478ed13e3bd92aca8f27ec0173a8aac96b

SHA512
f4be3b966d660d592ae839a99b43366e28c29e382e9f0b53e9e45e8a66e9cbabf6c83b898995518d7dff87a5e0491c4e90050f0881428046e79045953cfa1e92

Download Submit
memory/4444-0-0x00000000020C0000-0x00000000020C6000-memory.dmp

Filesize
24KB

Download
memory/4444-1-0x00000000020C0000-0x00000000020C6000-memory.dmp

Filesize
24KB

Download
memory/4444-2-0x00000000020E0000-0x00000000020E6000-memory.dmp

Filesize
24KB

Download
memory/4484-18-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/4484-17-0x0000000000690000-0x0000000000696000-memory.dmp

Filesize
24KB

Download