614682ac439d2db1dcb4144bf10b467f3ac79d448b7e2558cd22fddcc1227802

Analysis

max time kernel
95s
max time network
124s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
21/09/2024, 00:43

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General

Target

2024-09-21_5403d71e6d39344efa9f801cef5754a3_cryptolocker.exe
Size

39KB
MD5

5403d71e6d39344efa9f801cef5754a3
SHA1

1b4213fbeab7919b7b450d55f7aa034fcefd7431
SHA256

614682ac439d2db1dcb4144bf10b467f3ac79d448b7e2558cd22fddcc1227802
SHA512

34ee8548d6ae3281096eec651c3214e3624a038833b1a4016aa869d5e029827422358395617ccda66732baa2fccf6803824404fbc85201e34f1b76ac82ad00b9
SSDEEP

768:btB9g/WItCSsAGjX7r3BPOMHocM4vUUOmJ+t:btB9g/xtCSKfxLIcMzUwt

Score

7^/10

discovery

Malware Config

Signatures

Checks computer location settings 2 TTPs 2 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-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation	2024-09-21_5403d71e6d39344efa9f801cef5754a3_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

pid	Process
1288	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	2024-09-21_5403d71e6d39344efa9f801cef5754a3_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 1780 wrote to memory of 1288	1780	2024-09-21_5403d71e6d39344efa9f801cef5754a3_cryptolocker.exe	82
PID 1780 wrote to memory of 1288	1780	2024-09-21_5403d71e6d39344efa9f801cef5754a3_cryptolocker.exe	82
PID 1780 wrote to memory of 1288	1780	2024-09-21_5403d71e6d39344efa9f801cef5754a3_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-09-21_5403d71e6d39344efa9f801cef5754a3_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-21_5403d71e6d39344efa9f801cef5754a3_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1780
- C:\Users\Admin\AppData\Local\Temp\gewos.exe
  "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:1288

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
39KB

MD5
696dc02c39f45807a0515608f26938c4

SHA1
aed5aeeecbcdd293bbbf9bae03425bfc28a62687

SHA256
3ac1ff25d0124452981b387e5dfacbd9df534eadea56d96a2b22c17d0649b21b

SHA512
463392bbc0e581ef9657a9fa4dafc533fa6653ec9198147cf175178e14c8e91b5a93786ca2d36d52aabb1f228fb375aa7a007c2aea51e844123e54be53ae6a04

Download Submit
C:\Users\Admin\AppData\Local\Temp\gewosik.exe

Filesize
184B

MD5
820b3b7544bd972fb206ad3e9775ec0c

SHA1
b08045491130b0b30f7f92964de48f2209c0e695

SHA256
90c0b6079cb5182f239929f360355580c5e94e18dc6c6480c59c7a922e5be753

SHA512
11dde55b78608e349245b8861577086284097f25a32194af064dcf8cc82a696d3bde4d727667dd1d7508a0c25234663b410efb504f336e308900a422c782b89d

Download Submit
memory/1288-22-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/1780-0-0x00000000020E0000-0x00000000020E6000-memory.dmp

Filesize
24KB

Download
memory/1780-1-0x00000000020E0000-0x00000000020E6000-memory.dmp

Filesize
24KB

Download
memory/1780-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download