3cea3d8df8873edbece5d125f7785976ae36b0326e632b79c53d5b69f084415b

Analysis

max time kernel
150s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
19-09-2024 05:34

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General

Target

2024-09-19_d5efe0d35458f5567c14c3b532cd6cf7_cryptolocker.exe
Size

43KB
MD5

d5efe0d35458f5567c14c3b532cd6cf7
SHA1

ca1d33c28740b4a03e07bcf4a74ad6b3c12a84e5
SHA256

3cea3d8df8873edbece5d125f7785976ae36b0326e632b79c53d5b69f084415b
SHA512

a6c43658498e279f145c90475f661e453138272837cdd556fc163b1c1024926f41cff8ee45fa2d8bab490be1d1f82b1a88aef788c54936f42594ac068b5ad324
SSDEEP

768:bCDOw9UiaKHfjnD0S16avdrQFiLjJvtAqjrA:bCDOw9aMDooc+vAqj8

Score

7^/10

discovery

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-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation	2024-09-19_d5efe0d35458f5567c14c3b532cd6cf7_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
656	lossy.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_d5efe0d35458f5567c14c3b532cd6cf7_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 3592 wrote to memory of 656	3592	2024-09-19_d5efe0d35458f5567c14c3b532cd6cf7_cryptolocker.exe	84
PID 3592 wrote to memory of 656	3592	2024-09-19_d5efe0d35458f5567c14c3b532cd6cf7_cryptolocker.exe	84
PID 3592 wrote to memory of 656	3592	2024-09-19_d5efe0d35458f5567c14c3b532cd6cf7_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-09-19_d5efe0d35458f5567c14c3b532cd6cf7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-19_d5efe0d35458f5567c14c3b532cd6cf7_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3592
- 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:656

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\lossy.exe

Filesize
43KB

MD5
0269364e8d8126e75d11d21adb190b0f

SHA1
568181a63d99f7029a882e0322a2c7845af1f467

SHA256
a8b81fdd1cbfb958fb8e57953b7dd179a69d4dbc182d1d9cb2524d26348a3608

SHA512
8929f6a2d155679a12a007868b3ed345626791fd9b5ff3e5ca928d2ba5d4cf923ad52d2b6fbf0e27087b67a70ec47a494c490fae6267766a00f1a7c402f98618

Download Submit
memory/656-19-0x00000000020D0000-0x00000000020D6000-memory.dmp

Filesize
24KB

Download
memory/656-20-0x00000000020F0000-0x00000000020F6000-memory.dmp

Filesize
24KB

Download
memory/656-26-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/3592-0-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/3592-1-0x0000000000590000-0x0000000000596000-memory.dmp

Filesize
24KB

Download
memory/3592-2-0x0000000000590000-0x0000000000596000-memory.dmp

Filesize
24KB

Download
memory/3592-3-0x0000000000640000-0x0000000000646000-memory.dmp

Filesize
24KB

Download
memory/3592-17-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download