4e389be8fa1e2231ed46d2bd35a245a1639af7b099a61e782c2651df5b2ec75a

Analysis

max time kernel
68s
max time network
130s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
15/09/2024, 11:23

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General

Target

2024-09-15_741ffda5fef983ef2c2b930f11b4fe4b_cryptolocker.exe
Size

33KB
MD5

741ffda5fef983ef2c2b930f11b4fe4b
SHA1

baa46c4c909d62fc14b0d688c01bc128733260c2
SHA256

4e389be8fa1e2231ed46d2bd35a245a1639af7b099a61e782c2651df5b2ec75a
SHA512

4e6942015914584da88eeccbaedb15531cacd9900c1c9766b8337dec917bf58dd98fafccfb4a9d99587b62522cdc1eb61d297b0826b834b5d0d8ba281cabd530
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4l8tFFxE2B4lWS+nuu:btB9g/WItCSsAGjX7r3B4Guu

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-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation	2024-09-15_741ffda5fef983ef2c2b930f11b4fe4b_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

pid	Process
1520	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	2024-09-15_741ffda5fef983ef2c2b930f11b4fe4b_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 864 wrote to memory of 1520	864	2024-09-15_741ffda5fef983ef2c2b930f11b4fe4b_cryptolocker.exe	86
PID 864 wrote to memory of 1520	864	2024-09-15_741ffda5fef983ef2c2b930f11b4fe4b_cryptolocker.exe	86
PID 864 wrote to memory of 1520	864	2024-09-15_741ffda5fef983ef2c2b930f11b4fe4b_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-09-15_741ffda5fef983ef2c2b930f11b4fe4b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-15_741ffda5fef983ef2c2b930f11b4fe4b_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:864
- 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:1520

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
34KB

MD5
f08989e2a33f670c91836878c9971a6a

SHA1
7604d970be5d1e391fdd5eec5d8b098e557bdf33

SHA256
c1973bc9ecd1df3c5bbca9c1daad4812f2400ff7d2a4db121bbcd750ce17b297

SHA512
caf3a6adc862e18d0889309bbd87f674603f79bcdeeeb416ba06828268c4267403fe8d90ebdde7cacc95a8e560449275880682b099db0062668fae0e8d5a8429

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

Filesize
184B

MD5
7ec29595a6692603ae76cb45d9d21146

SHA1
8e67bfe10f32ef12761bd342adf6bbd4316e2683

SHA256
a64b3f0c54c9d6f683b2dc9463f67b1233c0b09b09494053a1702cad54f5a315

SHA512
9b7c03b643f0a6376565d59dac3f2b40d16310fa94a964a79b67ca9dcd594816bfcfb60f6521611f0f6c8d8621fb47e3aab7e814bba2205d4cb6ae6ae5d84899

Download Submit
memory/864-0-0x00000000022C0000-0x00000000022C6000-memory.dmp

Filesize
24KB

Download
memory/864-1-0x00000000022C0000-0x00000000022C6000-memory.dmp

Filesize
24KB

Download
memory/864-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1520-25-0x0000000002200000-0x0000000002206000-memory.dmp

Filesize
24KB

Download