b76b3d7568bc7dbb96c7d7734597d4f4bc90eaa5bab7db6a903d214c6dfa3104

Analysis

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

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
02/10/2024, 03:23

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General

Target

2024-10-02_3b5cc972049e4421897d2c6e833950a3_cryptolocker.exe
Size

34KB
MD5

3b5cc972049e4421897d2c6e833950a3
SHA1

3d967cf50d0e072498ae83801bd7f58a23d8f147
SHA256

b76b3d7568bc7dbb96c7d7734597d4f4bc90eaa5bab7db6a903d214c6dfa3104
SHA512

b23c2443323d49e6b54d6247e52ba73236c43ba40b9b2cb9e1b7031f4ec1396dff399bcb24ddb2efe89f629b85adcb5810ed7b071fa782c5ac4b3433dbf3d0a5
SSDEEP

384:bG74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUGTGOFi:bG74zYcgT/Ekd0ryfja

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-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation	2024-10-02_3b5cc972049e4421897d2c6e833950a3_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4796	hasfj.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	hasfj.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-02_3b5cc972049e4421897d2c6e833950a3_cryptolocker.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2376 wrote to memory of 4796	2376	2024-10-02_3b5cc972049e4421897d2c6e833950a3_cryptolocker.exe	89
PID 2376 wrote to memory of 4796	2376	2024-10-02_3b5cc972049e4421897d2c6e833950a3_cryptolocker.exe	89
PID 2376 wrote to memory of 4796	2376	2024-10-02_3b5cc972049e4421897d2c6e833950a3_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-10-02_3b5cc972049e4421897d2c6e833950a3_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-02_3b5cc972049e4421897d2c6e833950a3_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2376
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4796

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=3668,i,8548254608087149642,10333768245962368401,262144 --variations-seed-version --mojo-platform-channel-handle=4308 /prefetch:8
1⤵
PID:4868

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\hasfj.exe

Filesize
34KB

MD5
52b0bfcc9d9159f240571ec6189860c0

SHA1
5de767e74bc188414601745a2958b44a5d28f5d0

SHA256
9956578e32c4afc3b9d24e8f3c5e6ba984c856b5807952e6c4296064dfc4c708

SHA512
e8cabc61721d4dfa9483abd5cbe19aae0d2e2c8405d41a237f1e8680bb99bc154a9730065c60c1c1d81692d1c308eec64aeaf5a4f46be0a9eade6f8c5dfef0c0

Download Submit
memory/2376-0-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/2376-1-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/2376-2-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/2376-3-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/2376-17-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/4796-19-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/4796-20-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/4796-26-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download