577d84e6c3f74f88b3b68a550721993eb80a599d60ff01824a73be9f283727d0

Analysis

max time kernel
150s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
15-09-2024 03:49

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General

Target

2024-09-15_db36e489d70449d763cb252cb08aad88_cryptolocker.exe
Size

42KB
MD5

db36e489d70449d763cb252cb08aad88
SHA1

f882d4251b40982db312ed2fbcef3b285a102598
SHA256

577d84e6c3f74f88b3b68a550721993eb80a599d60ff01824a73be9f283727d0
SHA512

402051272dcd81f6ae72b547c6eeffbf0fa15243865bc40f41de23ce0bf6f6c8a4c94ebe0778768598f43f3b24aa3a9a88eb69ca24bbaffcecf9db343c0d0a9d
SSDEEP

768:bCDOw9UiaKHfjnD0S16avdrQFiLjJvtAd3z:bCDOw9aMDooc+vAB

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	2024-09-15_db36e489d70449d763cb252cb08aad88_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1792	lossy.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	2024-09-15_db36e489d70449d763cb252cb08aad88_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	lossy.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1588 wrote to memory of 1792	1588	2024-09-15_db36e489d70449d763cb252cb08aad88_cryptolocker.exe	84
PID 1588 wrote to memory of 1792	1588	2024-09-15_db36e489d70449d763cb252cb08aad88_cryptolocker.exe	84
PID 1588 wrote to memory of 1792	1588	2024-09-15_db36e489d70449d763cb252cb08aad88_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-09-15_db36e489d70449d763cb252cb08aad88_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-15_db36e489d70449d763cb252cb08aad88_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1588
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:1792

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\lossy.exe

Filesize
42KB

MD5
696f2745c86a6a69af1b3787f18dde11

SHA1
6616526355dc27234ab12dd0b5f77937500560bc

SHA256
60c58f643e04bbb7d67801e366e0835f0b6870aebcb6a1368153d357bc62b082

SHA512
c1d3d7f7d31b0418491b9db4f6d6aa2081987b855afba2957370ec0ed7d286beedfe8c4a16ec5c65f7cd44e32e30b5f0e7e6184d0a167db74e526363b317c232

Download Submit
memory/1588-0-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/1588-1-0x00000000021B0000-0x00000000021B6000-memory.dmp

Filesize
24KB

Download
memory/1588-2-0x00000000021B0000-0x00000000021B6000-memory.dmp

Filesize
24KB

Download
memory/1588-3-0x0000000002020000-0x0000000002026000-memory.dmp

Filesize
24KB

Download
memory/1588-18-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/1792-17-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/1792-20-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/1792-26-0x0000000000580000-0x0000000000586000-memory.dmp

Filesize
24KB

Download
memory/1792-27-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download