a53dd6fc265418d1c2d32952cbad14f9dc996c4a3de05015dee5921e723ff54b

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240910-en
resource tags

arch:x64arch:x86image:win10v2004-20240910-enlocale:en-usos:windows10-2004-x64system
submitted
04-10-2024 02:22

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General

Target

2024-10-04_04fc277ecf714558ba02de0acba980ac_cryptolocker.exe
Size

32KB
MD5

04fc277ecf714558ba02de0acba980ac
SHA1

8136a51102460f1042a332c89925944db62050e4
SHA256

a53dd6fc265418d1c2d32952cbad14f9dc996c4a3de05015dee5921e723ff54b
SHA512

1a108e402bb72c84978305140e4783b66429ef8e1a4784135c123dd0b7ed635af765a374b9f07a093be8c728ea85e0aed3b971c7f8a94364b507f2e6085e912c
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4l8tFFxE2B4lWM:btB9g/WItCSsAGjX7r3B4D

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-1-5-21-2629364133-3182087385-364449604-1000\Control Panel\International\Geo\Nation	2024-10-04_04fc277ecf714558ba02de0acba980ac_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
936	gewos.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	2024-10-04_04fc277ecf714558ba02de0acba980ac_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	gewos.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1784 wrote to memory of 936	1784	2024-10-04_04fc277ecf714558ba02de0acba980ac_cryptolocker.exe	84
PID 1784 wrote to memory of 936	1784	2024-10-04_04fc277ecf714558ba02de0acba980ac_cryptolocker.exe	84
PID 1784 wrote to memory of 936	1784	2024-10-04_04fc277ecf714558ba02de0acba980ac_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-10-04_04fc277ecf714558ba02de0acba980ac_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-04_04fc277ecf714558ba02de0acba980ac_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1784
- C:\Users\Admin\AppData\Local\Temp\gewos.exe
  "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:936

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\gewos.exe

Filesize
32KB

MD5
6b857c62c9de1c2bf75874cb2effa092

SHA1
e5186c2312c0a416a96a44e1c6ae42e3e02bc565

SHA256
45c2cea9ca0d9cc711d462c356f6ae48a1109720dadcdd2d94218d4a453b2aa8

SHA512
8cb8290bf413c6351bf595ebc50d314686567a976cc0a8a3e3f68743cbdc082d9b6708cbe553bfb733f8c1fa5b90e7ad18fc352f52201b514557cdc2a8d77304

Download Submit
memory/936-25-0x00000000020A0000-0x00000000020A6000-memory.dmp

Filesize
24KB

Download
memory/1784-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/1784-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/1784-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download