393d41173b31bc370213773542a7f155f61a732486dfd9ebf28334f860160434

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
31-10-2024 08:16

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General

Target

2024-10-31_f700b2f45287f08ddb3555af78acdd1f_cryptolocker.exe
Size

63KB
MD5

f700b2f45287f08ddb3555af78acdd1f
SHA1

1d9431ca93f3f1ebc553b53544e46cbc4b31a6b8
SHA256

393d41173b31bc370213773542a7f155f61a732486dfd9ebf28334f860160434
SHA512

c83339dc704741839c63b6fbf1c91a2ffb58b69218f1a0b6b94eb20b9e20ecc8bc3f8595c330929e4ca85802d649bb6129d0f3f69f338a023ba2dbcc44b97de5
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHZn1V:btng54SMLr+/AO/kIhfoKMHda/

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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	2024-10-31_f700b2f45287f08ddb3555af78acdd1f_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2672	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	2024-10-31_f700b2f45287f08ddb3555af78acdd1f_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 1736 wrote to memory of 2672	1736	2024-10-31_f700b2f45287f08ddb3555af78acdd1f_cryptolocker.exe	85
PID 1736 wrote to memory of 2672	1736	2024-10-31_f700b2f45287f08ddb3555af78acdd1f_cryptolocker.exe	85
PID 1736 wrote to memory of 2672	1736	2024-10-31_f700b2f45287f08ddb3555af78acdd1f_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-10-31_f700b2f45287f08ddb3555af78acdd1f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-31_f700b2f45287f08ddb3555af78acdd1f_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1736
- 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:2672

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\gewos.exe

Filesize
64KB

MD5
cc13cc50f063ce752d49c20aceba8e06

SHA1
7f63efec139670783b991058649c8a7a1c555471

SHA256
c4d2fefeac8d0bf9a44d9701609e5e1a2bff2dee395210d2e7c693a4d7cf5788

SHA512
3409587fea7118a6904d39ccb76a1dacf7974cd3049ecd6427f0e8348d1830ee62a2a6b530df850f6278ce4328bb5d457be8526db9a54b5c234909974cc879a0

Download Submit
memory/1736-0-0x00000000005F0000-0x00000000005F6000-memory.dmp

Filesize
24KB

Download
memory/1736-8-0x00007FF9B3A70000-0x00007FF9B3C65000-memory.dmp

Filesize
2.0MB

Download
memory/1736-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2672-25-0x00007FF9B3A70000-0x00007FF9B3C65000-memory.dmp

Filesize
2.0MB

Download
memory/2672-27-0x00007FF9B3A70000-0x00007FF9B3C65000-memory.dmp

Filesize
2.0MB

Download