e0edd389cda1f0bcd6fd736560ddd63156a31ef4618101ae37ce5463b96a4ff4

Analysis

max time kernel
93s
max time network
123s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
19-09-2024 05:35

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General

Target

2024-09-19_f15274d562a66e82a353c57d597e3e6d_cryptolocker.exe
Size

37KB
MD5

f15274d562a66e82a353c57d597e3e6d
SHA1

f93456c2771ebf6729129b9cc0dcfbc2e78b206c
SHA256

e0edd389cda1f0bcd6fd736560ddd63156a31ef4618101ae37ce5463b96a4ff4
SHA512

e5ef1495f564b42f81b1d6cc911917fd28d2aa25a3e49a46b131abf2f3ec92f071ca1ce3504aef18ea71aff268cfb88938a6ed08004bc7091fe47f541056853d
SSDEEP

768:btB9g/WItCSsAGjX7r3BPOMHocM4vUUOmX:btB9g/xtCSKfxLIcMzUn

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-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	gewos.exe
Key value queried	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	2024-09-19_f15274d562a66e82a353c57d597e3e6d_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4480	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	2024-09-19_f15274d562a66e82a353c57d597e3e6d_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 2368 wrote to memory of 4480	2368	2024-09-19_f15274d562a66e82a353c57d597e3e6d_cryptolocker.exe	82
PID 2368 wrote to memory of 4480	2368	2024-09-19_f15274d562a66e82a353c57d597e3e6d_cryptolocker.exe	82
PID 2368 wrote to memory of 4480	2368	2024-09-19_f15274d562a66e82a353c57d597e3e6d_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-09-19_f15274d562a66e82a353c57d597e3e6d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-19_f15274d562a66e82a353c57d597e3e6d_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2368
- 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:4480

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
37KB

MD5
d25d74eaa710dab19650994e6c20f213

SHA1
74c596fcfd3d00a99abf17fbb83da498feb0b210

SHA256
83dec8efe7dbb8dd40c1c3747a8f4c0415a8ef6e7f6f64d148bf9ef335019b3a

SHA512
deacef6cde87b6167e3635f6ff9207bfc9d5618d123d7af7a363e3056e818bb545736594b651c1ef46da7e903a37531e5b9aa845bd3a2f8b23d9c394cc6ca5f6

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

Filesize
184B

MD5
71f13b98298a1a0ef1b75e1b46cce70f

SHA1
5d7e993af6afbf57ca2a17bd35a8e4f05f8329b0

SHA256
8da0878aebc534bdeb1d9bd217df02b0a9bf9701df3a6aa52735c350b4dd6594

SHA512
eed7b957351cb442214facec4d19d67d4e0bf850b964765fabc435a752f34363f07cb34bd328bd22a9d28cd99357ce8f9a4b510140ded48ee13e4c3f2aba31c0

Download Submit
memory/2368-0-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/2368-1-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/2368-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4480-25-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download