d769f48a3dae0b6e19f8d984c8d526dd896981010cf74574f95da33ad735a9e2

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
18/09/2024, 22:24

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General

Target

2024-09-18_f92e16f1ba08d68416316211db0b321f_cryptolocker.exe
Size

35KB
MD5

f92e16f1ba08d68416316211db0b321f
SHA1

e2efa8d242dcf973f0bf8adbd25da431e7798923
SHA256

d769f48a3dae0b6e19f8d984c8d526dd896981010cf74574f95da33ad735a9e2
SHA512

1a92fce08d7aabdf62d95f401b2da50a96950b88a7a329219a2a7045841009a58a68bfb4c8226d1f9d024109ea636c56bfffdfe3b8548aa7cdee36d38628e16b
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLa5U:V6QFElP6n+gMQMOtEvwDpjyam

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-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	2024-09-18_f92e16f1ba08d68416316211db0b321f_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1740	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	2024-09-18_f92e16f1ba08d68416316211db0b321f_cryptolocker.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4284 wrote to memory of 1740	4284	2024-09-18_f92e16f1ba08d68416316211db0b321f_cryptolocker.exe	82
PID 4284 wrote to memory of 1740	4284	2024-09-18_f92e16f1ba08d68416316211db0b321f_cryptolocker.exe	82
PID 4284 wrote to memory of 1740	4284	2024-09-18_f92e16f1ba08d68416316211db0b321f_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-09-18_f92e16f1ba08d68416316211db0b321f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-18_f92e16f1ba08d68416316211db0b321f_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4284
- 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:1740

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
36KB

MD5
9a1ffca4393c55b0456b08908868f358

SHA1
40660424c9f2695c7a5a9e4ddff3cca677ec6256

SHA256
96560d9634f2f8449f94eff0cf4c02c385386928d5fc9e941d779d418c5adbbf

SHA512
c4e8044855799c70364bb30a0de60df378e6ff55cea0127bfc70380bc5d4826d683e580966ead01ac4ee165744af2a6bf86fac19d2069fbaa30894fc6a5790b7

Download Submit
memory/1740-17-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/1740-18-0x00000000006D0000-0x00000000006D6000-memory.dmp

Filesize
24KB

Download
memory/4284-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4284-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4284-2-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download