491af073726c78879e17431a9dafe95e0589233327092f7d0455a316496df8f3

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
19-09-2024 05:29

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General

Target

2024-09-19_54bad38f45dc0ce55b16f162c537110c_cryptolocker.exe
Size

43KB
MD5

54bad38f45dc0ce55b16f162c537110c
SHA1

0a6a323f8d0dbfe1a3f0fb961cf2c94f4542ef73
SHA256

491af073726c78879e17431a9dafe95e0589233327092f7d0455a316496df8f3
SHA512

ae2cad4aec99c4643c5e14bd39286b98fddd3e9fbd2415779c5e20dbd2c3c5e25907e5a74b9ecd506d2bf06e7fc591072b8e207dae5d779995573668bfc40210
SSDEEP

768:bCDOw9UiaKHfjnD0S16avdrQFiLjJvtAqjrm:bCDOw9aMDooc+vAqji

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-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation	2024-09-19_54bad38f45dc0ce55b16f162c537110c_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2476	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_54bad38f45dc0ce55b16f162c537110c_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 212 wrote to memory of 2476	212	2024-09-19_54bad38f45dc0ce55b16f162c537110c_cryptolocker.exe	82
PID 212 wrote to memory of 2476	212	2024-09-19_54bad38f45dc0ce55b16f162c537110c_cryptolocker.exe	82
PID 212 wrote to memory of 2476	212	2024-09-19_54bad38f45dc0ce55b16f162c537110c_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-09-19_54bad38f45dc0ce55b16f162c537110c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-19_54bad38f45dc0ce55b16f162c537110c_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:212
- 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:2476

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
2fe221ed6e0dfe89d5ea11962a3a2953

SHA1
2741d128cf24c04407a2453e92f554aa3d04d87b

SHA256
938c00126f37b155ce331c35d211f68a48d10de914819ef66a22f7e02b550833

SHA512
b982639d13bc30b04177f676bbac3526d25d9fab093fe47cca8529acbe48a8fe472c9fda5be17c709221997d2d942158ac285bce4ea518c6fba22c0c026f619b

Download Submit
memory/212-0-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/212-1-0x00000000021F0000-0x00000000021F6000-memory.dmp

Filesize
24KB

Download
memory/212-2-0x00000000021F0000-0x00000000021F6000-memory.dmp

Filesize
24KB

Download
memory/212-3-0x0000000002220000-0x0000000002226000-memory.dmp

Filesize
24KB

Download
memory/212-17-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/2476-19-0x00000000020D0000-0x00000000020D6000-memory.dmp

Filesize
24KB

Download
memory/2476-25-0x00000000020B0000-0x00000000020B6000-memory.dmp

Filesize
24KB

Download
memory/2476-26-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download