edf28dd96cf628e8e06cb49feab89b439e7fb06a7d22f48182b9628f06c8a3c6

Analysis

max time kernel
150s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
18-10-2024 00:25

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General

Target

2024-10-18_13260624c484e8a3f474065ad45930c4_cryptolocker.exe
Size

30KB
MD5

13260624c484e8a3f474065ad45930c4
SHA1

78c269353b6f41fb27ac38d41133a0f9a27f3fc1
SHA256

edf28dd96cf628e8e06cb49feab89b439e7fb06a7d22f48182b9628f06c8a3c6
SHA512

c269e8834678401a76947a2108913a42a0d9f116212ebf49e1fbae0dc14a6bb621482e57641d6c917315b05d0290dbd523abbee7831e069ca6748f3694455598
SSDEEP

384:bM7Q0pjC4GybxMv01d3AcASBQMf6i/zzzcYgUPSznHBFp:b/yC4GyNM01GuQMNXw2PSjH9

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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	2024-10-18_13260624c484e8a3f474065ad45930c4_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4668	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	2024-10-18_13260624c484e8a3f474065ad45930c4_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 1352 wrote to memory of 4668	1352	2024-10-18_13260624c484e8a3f474065ad45930c4_cryptolocker.exe	85
PID 1352 wrote to memory of 4668	1352	2024-10-18_13260624c484e8a3f474065ad45930c4_cryptolocker.exe	85
PID 1352 wrote to memory of 4668	1352	2024-10-18_13260624c484e8a3f474065ad45930c4_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-10-18_13260624c484e8a3f474065ad45930c4_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-18_13260624c484e8a3f474065ad45930c4_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1352
- 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:4668

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
31KB

MD5
c3115fd8161ebaae3416be07112ff133

SHA1
914eb79563d2c5ecaaffba0213e48f5bd9fcfd02

SHA256
aec662f4535185735570cc7f740b8245ca5c9b8944230a29a12e6fa6e12df136

SHA512
dea62b72fea12ba07ddf3f813d993852aa3f8f2f6f4cd85c4f9f3b9cff75421b8000e4d2a61946c529828f7358be5122489fdd45afce3684d99d2feb6b7d38d9

Download Submit
memory/1352-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/1352-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/1352-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4668-25-0x00000000020D0000-0x00000000020D6000-memory.dmp

Filesize
24KB

Download