bf92dc7907ec3be4af5beefbe573324e97526b990c9ef9c17304862ec7c8289d

Analysis

max time kernel
94s
max time network
129s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
05-09-2024 12:08

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General

Target

2024-09-05_7380425550684f2741eff0612bb89df3_cryptolocker.exe
Size

40KB
MD5

7380425550684f2741eff0612bb89df3
SHA1

5f0259f253aa8c18da9cd38d1ac85d8247c624d3
SHA256

bf92dc7907ec3be4af5beefbe573324e97526b990c9ef9c17304862ec7c8289d
SHA512

fb2dcad59f357f8921e8c472a7bd49cc73d2c0f0c4a9a7ddfe5dc601c4ddfc2e169677981589205e8acc04a395d253bd756abbac035785e0ad300d4a2b280ae3
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXunRSy3LJQ:btB9g/WItCSsAGjX7e9N0hunRvG

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-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation	2024-09-05_7380425550684f2741eff0612bb89df3_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

pid	Process
1452	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	2024-09-05_7380425550684f2741eff0612bb89df3_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 856 wrote to memory of 1452	856	2024-09-05_7380425550684f2741eff0612bb89df3_cryptolocker.exe	84
PID 856 wrote to memory of 1452	856	2024-09-05_7380425550684f2741eff0612bb89df3_cryptolocker.exe	84
PID 856 wrote to memory of 1452	856	2024-09-05_7380425550684f2741eff0612bb89df3_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-09-05_7380425550684f2741eff0612bb89df3_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-05_7380425550684f2741eff0612bb89df3_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:856
- 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:1452

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
40KB

MD5
c1d50a4a423e4a633aace23003ed5cd5

SHA1
9e48ee09cdd83f2f7be470bbcb6f5ba55d11f29f

SHA256
3f589b8f1c2c85961d0e308f770bc3bc521da98361d316e92514e962f67b2a32

SHA512
e79a35c24eaea3a07c9efc7a2232329e3fde6ff3c9023750bc45e87580b800f81ccbcad883f77db819bae4ab614c927595f8e7449213133df28611665d10e5ea

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

Filesize
184B

MD5
b7a726e4a73567daae1d300c0b6d3ff1

SHA1
71142f1c9d26e73e434546309ad358d203165dc6

SHA256
b5c6e63d4bed9ba2d44e2e55417bfe32ff07c27ddf8a45170f370e487945736b

SHA512
7dbf4457843851d3e7b90797a20958bd70f85bc21a8d0f0167f9c11bb5b8e9dad17edbb834ad657f69e916583e75df9c55aa14565d0b199ea7d71f1c5c7a8443

Download Submit
memory/856-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/856-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/856-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1452-25-0x0000000002010000-0x0000000002016000-memory.dmp

Filesize
24KB

Download