6972550dfde9042c4c2bd43b22ee18b868017e69a771a2b053be35563ba76c5f

Analysis

max time kernel
20s
max time network
120s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
15/09/2024, 02:40

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General

Target

2024-09-15_585ff05809ed64f13e2cc62c240d0a75_cryptolocker.exe
Size

44KB
MD5

585ff05809ed64f13e2cc62c240d0a75
SHA1

9bff2b8265aaaa08bf9e0841ef13816763963ad5
SHA256

6972550dfde9042c4c2bd43b22ee18b868017e69a771a2b053be35563ba76c5f
SHA512

018f46e912b17a551b1ec5491c524d45c0fbb4f1e24c787f1a48faac8ad53afc1fbb6d390b85964b1665dedece524501278c6af5d3478f00755827e0fa8f8dfa
SSDEEP

768:b/yC4GyNM01GuQMNXw2PSjHPbSuYlW8PAmdT:b/pYayGig5HjS3NPAmdT

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3020	retln.exe

Loads dropped DLL 1 IoCs

pid	Process
1380	2024-09-15_585ff05809ed64f13e2cc62c240d0a75_cryptolocker.exe

Creates a large amount of network flows 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Discovery
T1046
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	2024-09-15_585ff05809ed64f13e2cc62c240d0a75_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	retln.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
1380	2024-09-15_585ff05809ed64f13e2cc62c240d0a75_cryptolocker.exe
3020	retln.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1380 wrote to memory of 3020	1380	2024-09-15_585ff05809ed64f13e2cc62c240d0a75_cryptolocker.exe	30
PID 1380 wrote to memory of 3020	1380	2024-09-15_585ff05809ed64f13e2cc62c240d0a75_cryptolocker.exe	30
PID 1380 wrote to memory of 3020	1380	2024-09-15_585ff05809ed64f13e2cc62c240d0a75_cryptolocker.exe	30
PID 1380 wrote to memory of 3020	1380	2024-09-15_585ff05809ed64f13e2cc62c240d0a75_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-09-15_585ff05809ed64f13e2cc62c240d0a75_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-15_585ff05809ed64f13e2cc62c240d0a75_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1380
- 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
  - Suspicious use of UnmapMainImage
  PID:3020

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Discovery

T1046

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

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

Filesize
44KB

MD5
ba2a253d93d3f47fcf3525544ccae4e3

SHA1
1d043859a6071640bc9daaf4b635322551fef4ae

SHA256
d3197992dabb53438515c4268378c14cdfa1bf7e0863f55e3731466059e0756a

SHA512
362a73031da92dddee37cf4c3d00626b8e2fa4d1651485b4a3cdfeaa8b6f6c07b0ad83ee9268798d1dff4b6559a5059499507aeaa269763d3ce3a917450868c2

Download Submit
memory/1380-0-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/1380-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1380-8-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download