Overview

overview

10

Static

static

6a1s0ssssd7da.exe

windows7_x64

10

6a1s0ssssd7da.exe

windows10_x64

10

Analysis

  • max time kernel
    151s
  • max time network
    142s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    09-07-2020 17:15

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General

  • Target

    6a1s0ssssd7da.exe

  • Size

    717KB

  • MD5

    ae1941234e5d7a3402e5f10432b2cf44

  • SHA1

    7b817fa8a163e3450d7122c6fc7ad92e93000986

  • SHA256

    d4d432c94d69e9a57f473c042f53abc181aa8919981206a3714201f429c19b44

  • SHA512

    2a19cfc3a6d8c612bcb90c95bc21ee9dea18f4d3d9e66c89cff342d377107e44263a63c074a2e418a2ea617518f74f3a09f6a971b8126777fce30bbc68d52be7

Score
10/10
ransomwarepersistencespyware

Malware Config

Extracted

Path

\??\M:\Boot\cs-CZ\Read_Me.txt

Ransom Note
Attention! All your files, documents, photos, databases and other important files are encrypted The only method of recovering files is to purchase an unique decryptor. Only we can give you this decryptor and only we can recover your files. The server with your decryptor is in a closed network TOR. You can get there by the following ways: ---------------------------------------------------------------------------------------- 1. Download Tor browser - https://www.torproject.org/ 2. Install Tor browser 3. Open Tor Browser 4. Open link in TOR browser: http://7rzpyw3hflwe2c7h.onion/?VVVVVVVV 5. Follow the instructions on this page ---------------------------------------------------------------------------------------- On our page you will see instructions on payment and get the opportunity to decrypt 1 file for free. Alternate communication channel here: http://helpqvrg3cc5mvb3.onion/
URLs

http://7rzpyw3hflwe2c7h.onion/?VVVVVVVV

http://helpqvrg3cc5mvb3.onion/

Signatures

  • Drops startup file 1 IoCs
  • Modifies registry class 20 IoCs
  • Drops file in Program Files directory 12071 IoCs
  • Modifies service 2 TTPs 4 IoCs
    persistence
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spyware
  • Suspicious use of AdjustPrivilegeToken 36 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 3 IoCs
  • Drops desktop.ini file(s) 41 IoCs
  • Enumerates connected drives 3 TTPs
  • Suspicious behavior: EnumeratesProcesses 4528 IoCs
  • Modifies Installed Components in the registry 2 TTPs 4 IoCs
    persistence
  • Suspicious use of FindShellTrayWindow 83 IoCs
  • Suspicious use of SendNotifyMessage 98 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs
  • Suspicious use of SetThreadContext 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6a1s0ssssd7da.exe
    "C:\Users\Admin\AppData\Local\Temp\6a1s0ssssd7da.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    • Suspicious use of SetThreadContext
    PID:1124
    • C:\Users\Admin\AppData\Local\Temp\6a1s0ssssd7da.exe
      "{path}"
      2⤵
      • Drops startup file
      • Drops file in Program Files directory
      • Drops desktop.ini file(s)
      • Suspicious behavior: EnumeratesProcesses
      PID:1464
  • C:\Windows\explorer.exe
    explorer.exe
    1⤵
    • Modifies registry class
    • Modifies service
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious behavior: GetForegroundWindowSpam
    • Drops desktop.ini file(s)
    • Modifies Installed Components in the registry
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:1688
  • C:\Windows\explorer.exe
    explorer.exe
    1⤵
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Modifies Installed Components in the registry
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:2036
  • C:\Windows\explorer.exe
    explorer.exe
    1⤵
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious behavior: GetForegroundWindowSpam
    • Modifies Installed Components in the registry
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:756
  • C:\Windows\explorer.exe
    explorer.exe
    1⤵
    • Modifies registry class
    • Modifies service
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious behavior: GetForegroundWindowSpam
    • Modifies Installed Components in the registry
    • Suspicious use of FindShellTrayWindow
    PID:1328

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

2
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

1
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Exfiltration

Command and Control

Impact

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Downloads