53db8807f2a0c1be2c28862a3768ae44e8d245e9b76219034f19f046453bb1ae

Analysis

max time kernel
150s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
14/10/2024, 07:30

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General

Target

2024-10-14_c9011fe90cc3d0ec734e209a227d139c_cryptolocker.exe
Size

32KB
MD5

c9011fe90cc3d0ec734e209a227d139c
SHA1

20a3b5dca412fca3e3253a9f6b9d3b4a5ed11198
SHA256

53db8807f2a0c1be2c28862a3768ae44e8d245e9b76219034f19f046453bb1ae
SHA512

3dabb93d16d7d7c7c0e7879d3c2f35f976468ceed72a2da5343609fb6779c710c81453922c306b79cabf190e603d572943c14f26de28461413235842f2c3590b
SSDEEP

384:bM7Q0pjC4GybxMv01d3AcASBQMf6i/zzzcYgUPSznHzimQV:b/yC4GyNM01GuQMNXw2PSjHeH

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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	2024-10-14_c9011fe90cc3d0ec734e209a227d139c_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1520	retln.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	2024-10-14_c9011fe90cc3d0ec734e209a227d139c_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	retln.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 436 wrote to memory of 1520	436	2024-10-14_c9011fe90cc3d0ec734e209a227d139c_cryptolocker.exe	85
PID 436 wrote to memory of 1520	436	2024-10-14_c9011fe90cc3d0ec734e209a227d139c_cryptolocker.exe	85
PID 436 wrote to memory of 1520	436	2024-10-14_c9011fe90cc3d0ec734e209a227d139c_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-10-14_c9011fe90cc3d0ec734e209a227d139c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-14_c9011fe90cc3d0ec734e209a227d139c_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:436
- C:\Users\Admin\AppData\Local\Temp\retln.exe
  "C:\Users\Admin\AppData\Local\Temp\retln.exe"
  2⤵
  - 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

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Downloads

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

Filesize
32KB

MD5
d5c6509982b9f6098bb640ee544564b0

SHA1
dfe0c63f52b290563173c4500d9ff1c6bd4ad637

SHA256
d8d8763c102e4b7d9a4b0a170b7e0c080a50838c279a4e79f837a50006d4e320

SHA512
58fadda1c135d1ecade21058fde8c970581e43655122d560e2b58fd85569bc6e0fed414169373734277d527e1a7cde881c20dc4b91b078b778964ce14cea28cb

Download Submit
memory/436-0-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/436-1-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/436-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1520-25-0x0000000002190000-0x0000000002196000-memory.dmp

Filesize
24KB

Download