6e5a3bdf169aa5cfb3a18a59e80dd40f34a63c1e009051bde697f2ec1ebfbef6

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
13/10/2024, 04:01

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General

Target

2024-10-13_ea67ccb58a4810cee33b47f45408934b_cryptolocker.exe
Size

40KB
MD5

ea67ccb58a4810cee33b47f45408934b
SHA1

b953a423907bfe5dc8c7c03face4a14bf76d8973
SHA256

6e5a3bdf169aa5cfb3a18a59e80dd40f34a63c1e009051bde697f2ec1ebfbef6
SHA512

84e69b9f8e93cdeaefa14af86fba3735bee0e2de9d4c8b698da38c5aeffdfa82001fc4858683b156733c09da860ed0e7d958ac5cd215a1124ff380b0dff66bdd
SSDEEP

768:qTVbxjgQNQXtckstOOtEvwDpjAaD3TUogs/VXpAPWRi3:qTJu9cvMOtEvwDpjppVXzRS

Score

7^/10

discovery upx

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	2024-10-13_ea67ccb58a4810cee33b47f45408934b_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
844	asih.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4656-0-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/files/0x000c000000023b38-13.dat	upx
behavioral2/memory/4656-18-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/memory/844-27-0x0000000000500000-0x000000000050F000-memory.dmp	upx

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	2024-10-13_ea67ccb58a4810cee33b47f45408934b_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	asih.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4656 wrote to memory of 844	4656	2024-10-13_ea67ccb58a4810cee33b47f45408934b_cryptolocker.exe	85
PID 4656 wrote to memory of 844	4656	2024-10-13_ea67ccb58a4810cee33b47f45408934b_cryptolocker.exe	85
PID 4656 wrote to memory of 844	4656	2024-10-13_ea67ccb58a4810cee33b47f45408934b_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-10-13_ea67ccb58a4810cee33b47f45408934b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-13_ea67ccb58a4810cee33b47f45408934b_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4656
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:844

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\asih.exe

Filesize
40KB

MD5
df0356f0c799711c5d734d35415a43a2

SHA1
4b611783d6b0c7e408656724ed3c77e58bcef4fe

SHA256
09c0ba50a8295094ad9a08906a64d563595b878659d6b6da8524faa3324338c2

SHA512
b0be72957e630010d822f5dce9562339af1063c29d8f26420105c6c7ed59cf13db976c8f7f5c7d60ead5f4026dd1954c6b7ab790459af815ff3115bfc04bd3eb

Download Submit
memory/844-20-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/844-21-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/844-27-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/4656-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/4656-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/4656-2-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/4656-3-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/4656-18-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download