d9b1b09f4ff8902f9fe4f1bb2ac09ceec727a13669159051e744f02f5d576638

Analysis

max time kernel
134s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
24/08/2024, 07:09

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General

Target

2024-08-24_84a0ce21a5751fe3cf781525b1c77820_cryptolocker.exe
Size

32KB
MD5

84a0ce21a5751fe3cf781525b1c77820
SHA1

491543f19808264279895c09ead89a461fb00e47
SHA256

d9b1b09f4ff8902f9fe4f1bb2ac09ceec727a13669159051e744f02f5d576638
SHA512

db4cbcb000f463b52d75c456885e173a275637d856aff881cf621d878486aa01aa15edbecc7b8611a6bb7ca2ff6422fb68303dad670dfc2c2128c7ace2a252d1
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4l8tFFxE2B4lWS+s:btB9g/WItCSsAGjX7r3B4Gs

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-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	2024-08-24_84a0ce21a5751fe3cf781525b1c77820_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

pid	Process
2268	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	2024-08-24_84a0ce21a5751fe3cf781525b1c77820_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 1040 wrote to memory of 2268	1040	2024-08-24_84a0ce21a5751fe3cf781525b1c77820_cryptolocker.exe	85
PID 1040 wrote to memory of 2268	1040	2024-08-24_84a0ce21a5751fe3cf781525b1c77820_cryptolocker.exe	85
PID 1040 wrote to memory of 2268	1040	2024-08-24_84a0ce21a5751fe3cf781525b1c77820_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-08-24_84a0ce21a5751fe3cf781525b1c77820_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-24_84a0ce21a5751fe3cf781525b1c77820_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1040
- 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:2268

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
32KB

MD5
94c5caeafb762bb29c6d0aadde6d14bf

SHA1
bce42d8f7df9b26623ef76fbdb4674dfc4d0c1fc

SHA256
d9baaf47a87aa63fafd58e9eaaaa25eaa20b27c48e8f1b06883eb569e8804447

SHA512
a00d8701e4549f9053160fbbea69a5f440d41344cc0bedee9b2db381de8c57d1f183820a5b3b2ee4c1b13724822f3559cb272d514b43006bb41bc7c90214a1b2

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

Filesize
184B

MD5
2f967095bd0b7006e4f170e6b0093e06

SHA1
09ee45b741d381b12cf8c558a995b792c1c1826a

SHA256
bf8a2e15b86738f61b7bcbc850eb5021721536cbcec1d95d5762ca5505a9c27e

SHA512
7fbf66f3a078ef12003b25fee782ee3f7643e27cc1784320e1e635dcfb503f524ea442ceceec1591b6b33d94ca1dd223e28853e1201c449ec519118650f890b8

Download Submit
memory/1040-0-0x00000000022F0000-0x00000000022F6000-memory.dmp

Filesize
24KB

Download
memory/1040-1-0x00000000022F0000-0x00000000022F6000-memory.dmp

Filesize
24KB

Download
memory/1040-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2268-25-0x00000000021F0000-0x00000000021F6000-memory.dmp

Filesize
24KB

Download