f7b7caa3f3a34505f9c8fc967b29a3bf0bc14258c601abec0685cd1604045145

Analysis

max time kernel
14s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
18/10/2024, 00:25

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General

Target

2024-10-18_0f53ca8fbae0d5db821be88dd05009f0_cryptolocker.exe
Size

30KB
MD5

0f53ca8fbae0d5db821be88dd05009f0
SHA1

95ec9636b5e9376b88ef670c6d39ca2f3a5f4e4a
SHA256

f7b7caa3f3a34505f9c8fc967b29a3bf0bc14258c601abec0685cd1604045145
SHA512

e856fe930251f054a806d4fdf399564f7d62012781830fb71b48d51f565572869bfdf739ba4e89076f4e047a57180390f77ba0dd572ace34ba215faa2b200124
SSDEEP

384:bM7Q0pjC4GybxMv01d3AcASBQMf6i/zzzcYgUPSznC9:b/yC4GyNM01GuQMNXw2PSjk

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1716	retln.exe

Loads dropped DLL 1 IoCs

pid	Process
1352	2024-10-18_0f53ca8fbae0d5db821be88dd05009f0_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	2024-10-18_0f53ca8fbae0d5db821be88dd05009f0_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	retln.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
1352	2024-10-18_0f53ca8fbae0d5db821be88dd05009f0_cryptolocker.exe
1716	retln.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1352 wrote to memory of 1716	1352	2024-10-18_0f53ca8fbae0d5db821be88dd05009f0_cryptolocker.exe	30
PID 1352 wrote to memory of 1716	1352	2024-10-18_0f53ca8fbae0d5db821be88dd05009f0_cryptolocker.exe	30
PID 1352 wrote to memory of 1716	1352	2024-10-18_0f53ca8fbae0d5db821be88dd05009f0_cryptolocker.exe	30
PID 1352 wrote to memory of 1716	1352	2024-10-18_0f53ca8fbae0d5db821be88dd05009f0_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-10-18_0f53ca8fbae0d5db821be88dd05009f0_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-18_0f53ca8fbae0d5db821be88dd05009f0_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
- 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
  - Suspicious use of UnmapMainImage
  PID:1716

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
30KB

MD5
913e5492843409f3c4fe6cf1f3cf978d

SHA1
14d4d6227eb90fe59d05c46101eabcc0fd737e45

SHA256
9dc0728ca083a411e9e349539263f787e7ef645c9658f6abbfd2b04f479f54c5

SHA512
f860b53f76d920eeb1e413e842f1664290230f9122fd146727821b8bf307bf31c9992dc1e289f5648fbee0b667c0509524798621f7e25d69f4850b47385beb29

Download Submit
memory/1352-0-0x00000000003E0000-0x00000000003E6000-memory.dmp

Filesize
24KB

Download
memory/1352-8-0x00000000003E0000-0x00000000003E6000-memory.dmp

Filesize
24KB

Download
memory/1352-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1716-16-0x00000000003F0000-0x00000000003F6000-memory.dmp

Filesize
24KB

Download