9fd93ff23c439e507a8378ff46a48f716448a0594e31e168ba4805073922c299

Analysis

max time kernel
150s
max time network
146s
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, 09:51

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-09-05_692a3c15c04c05a868d96ee3b3d77a4a_cryptolocker.exe
Size

52KB
MD5

692a3c15c04c05a868d96ee3b3d77a4a
SHA1

1a8c00aec35eaad4af0983c3b6bdaac038f7bae4
SHA256

9fd93ff23c439e507a8378ff46a48f716448a0594e31e168ba4805073922c299
SHA512

3c09d445af2215c8e1f116377f9a12d542a9989fdacbbc78595a5fb7333a5b887df0d81ebb634e6dca2f96a7d5a8dc8a0456b07df3ed0769c08a21fe66b16938
SSDEEP

768:bODOw9UiamWUB2preAr+OfjH/0S16avdrQFiLjJvtX/:bODOw9acifAoc+vX/

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-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation	2024-09-05_692a3c15c04c05a868d96ee3b3d77a4a_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2264	lossy.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3244-0-0x0000000008000000-0x000000000800F000-memory.dmp	upx
behavioral2/files/0x0009000000023475-13.dat	upx
behavioral2/memory/3244-17-0x0000000008000000-0x000000000800F000-memory.dmp	upx
behavioral2/memory/2264-26-0x0000000008000000-0x000000000800F000-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	2024-09-05_692a3c15c04c05a868d96ee3b3d77a4a_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	lossy.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3244 wrote to memory of 2264	3244	2024-09-05_692a3c15c04c05a868d96ee3b3d77a4a_cryptolocker.exe	84
PID 3244 wrote to memory of 2264	3244	2024-09-05_692a3c15c04c05a868d96ee3b3d77a4a_cryptolocker.exe	84
PID 3244 wrote to memory of 2264	3244	2024-09-05_692a3c15c04c05a868d96ee3b3d77a4a_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-09-05_692a3c15c04c05a868d96ee3b3d77a4a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-05_692a3c15c04c05a868d96ee3b3d77a4a_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3244
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2264

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\lossy.exe

Filesize
52KB

MD5
62a6f74515070126bd4c9937e87a7caf

SHA1
13b8555c71c0de9e2ad562fcd5fe9df6e6e73593

SHA256
55de94f514ce3883d11ab3cba8256e24400fd4228c0d265f03e89e97fcb3faa2

SHA512
ef7101e2b52cdfa1f3d624a190740bde7aef66464176ca869c3d0b61ef26b96e72be9b55d905995f17ac97bb2d07a38555ccf73151bb72bb0c6c8808124d2041

Download Submit
memory/2264-19-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/2264-20-0x00000000020F0000-0x00000000020F6000-memory.dmp

Filesize
24KB

Download
memory/2264-26-0x0000000008000000-0x000000000800F000-memory.dmp

Filesize
60KB

Download
memory/3244-0-0x0000000008000000-0x000000000800F000-memory.dmp

Filesize
60KB

Download
memory/3244-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/3244-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/3244-3-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/3244-17-0x0000000008000000-0x000000000800F000-memory.dmp

Filesize
60KB

Download