7a3e5650e7cbdea505ae34194319cb68967ee24853d4b1832704f48818e6e3ac

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
05/10/2024, 19:34

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General

Target

2024-10-05_9539f1ecdf238b02be8a0735d6737d4a_cryptolocker.exe
Size

71KB
MD5

9539f1ecdf238b02be8a0735d6737d4a
SHA1

e14d672177274865975b8ee25a4b8a6cc2888bdb
SHA256

7a3e5650e7cbdea505ae34194319cb68967ee24853d4b1832704f48818e6e3ac
SHA512

128fb114a706de9eb3184d3b2da514f24e0bd9cfb1bfbfee257bf902547f3f3210b4b516f0dde3eca6749bb3e0a5ca612dc798cdfe052343e490121c9fddd57c
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1b80:X6a+SOtEvwDpjBZYvQd2j

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-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation	2024-10-05_9539f1ecdf238b02be8a0735d6737d4a_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4872	asih.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	asih.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-05_9539f1ecdf238b02be8a0735d6737d4a_cryptolocker.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3472 wrote to memory of 4872	3472	2024-10-05_9539f1ecdf238b02be8a0735d6737d4a_cryptolocker.exe	82
PID 3472 wrote to memory of 4872	3472	2024-10-05_9539f1ecdf238b02be8a0735d6737d4a_cryptolocker.exe	82
PID 3472 wrote to memory of 4872	3472	2024-10-05_9539f1ecdf238b02be8a0735d6737d4a_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-10-05_9539f1ecdf238b02be8a0735d6737d4a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-05_9539f1ecdf238b02be8a0735d6737d4a_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3472
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4872

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\asih.exe

Filesize
71KB

MD5
f9a3122455041df779f2c41f26d0a93d

SHA1
9beb8e159ca39e02c451271b6db522d890447742

SHA256
42030862cc728767c2205da8352251e49c55fcf68dc4504c6e462636e272bbac

SHA512
2ec3bdc1a05df6d89f90a14f394666891318f6342c1cb02c1f47862c0094a5465cd0e0ce2b8851abf7d322c9cc678c65c55b83a2599f7bf65589263c35d0e41c

Download Submit
memory/3472-0-0x0000000002280000-0x0000000002286000-memory.dmp

Filesize
24KB

Download
memory/3472-1-0x0000000002280000-0x0000000002286000-memory.dmp

Filesize
24KB

Download
memory/3472-2-0x00000000021A0000-0x00000000021A6000-memory.dmp

Filesize
24KB

Download
memory/4872-17-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/4872-18-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download