143bafc111620f325f1cad521b4f1a1eb92567a353e169d8a1c9394d9f1a3649

Analysis

max time kernel
150s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240910-en
resource tags

arch:x64arch:x86image:win10v2004-20240910-enlocale:en-usos:windows10-2004-x64system
submitted
19-09-2024 06:28

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General

Target

2024-09-19_8a66ee025c342901133f7689b6c4f216_cryptolocker.exe
Size

35KB
MD5

8a66ee025c342901133f7689b6c4f216
SHA1

20192bd31f69cbaf1b1d2a02d803af6eeef64e5a
SHA256

143bafc111620f325f1cad521b4f1a1eb92567a353e169d8a1c9394d9f1a3649
SHA512

7a132b192a0545934efd849bdbf94b191927906edebc45b4ecbc57526a40aab53e6eb4bd05c7d33340099de4ed4d26fab61bf8ee7a3e29caa5211162de85cefc
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiA02AxF9:btB9g/WItCSsAGjX7e9NZAxf

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-1-5-21-2629364133-3182087385-364449604-1000\Control Panel\International\Geo\Nation	2024-09-19_8a66ee025c342901133f7689b6c4f216_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2629364133-3182087385-364449604-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

pid	Process
1960	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_8a66ee025c342901133f7689b6c4f216_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 3152 wrote to memory of 1960	3152	2024-09-19_8a66ee025c342901133f7689b6c4f216_cryptolocker.exe	86
PID 3152 wrote to memory of 1960	3152	2024-09-19_8a66ee025c342901133f7689b6c4f216_cryptolocker.exe	86
PID 3152 wrote to memory of 1960	3152	2024-09-19_8a66ee025c342901133f7689b6c4f216_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-09-19_8a66ee025c342901133f7689b6c4f216_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-19_8a66ee025c342901133f7689b6c4f216_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3152
- 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:1960

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
35KB

MD5
71ba744b213f971f3af5bc3e01ea04ee

SHA1
e5bada19c6b9f72203024669b2dd21a3b78e3e58

SHA256
ac5a0aadebad551b72d5c2bf4f8eba4082fe0392f58c4e402f1fba67c9fb039c

SHA512
0d75bb10c0e0910543638cada35558eb7216ab59f656dfb39254fb657128be4c5cae8e322f840ea32f41453ebc9f455eae5b0c3fc72ddc6ad53d674eec8fcdac

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

Filesize
184B

MD5
a008dc2c6767132ae11250499ec52efb

SHA1
ebeeef5a89335955141bd1ac8e64aa6e08c976a5

SHA256
f9ef2ba8298666a69a99bf3da695749744cb27542172dab17fcf7b36cc03ce1a

SHA512
480d5e1c877c36dcc74b5e57c19b4c8e52261e1d5bab5139982cf40e10bc853019ae1c02e0c8dd93cf3597f02ec9f25cb690170cd61970eeed29fa03ae257319

Download Submit
memory/1960-25-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download
memory/3152-0-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/3152-1-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/3152-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download