Overview

overview

10

Static

static

10

Ransom.exe

windows7_x64

10

Ransom.exe

windows10-2004_x64

10

Resubmissions

10-02-2022 19:35

220210-yal6vaagdn 10

25-01-2022 13:43

220125-q1geaaghd5 10

Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    10-02-2022 19:35

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General

  • Target

    Ransom.exe

  • Size

    127KB

  • MD5

    1f6297d8f742cb578bfa59735120326b

  • SHA1

    ff6eca213cad5c2a139fc0dc0dc6a8e6d3df7b17

  • SHA256

    3f843cbffeba010445dae2b171caaa99c6b56360de5407da71210d007fe26673

  • SHA512

    f9ade063be2ae5861248472aff857b2e0506d4705ff779972ade7482bb7797521338dd9a842f048d5ba1697719b22a3ba596370c37f4352a2527dbe1997edfd1

Score
10/10
evasionransomware

Malware Config

Extracted

Path

C:\Program Files\RECOVERY INFORMATION.txt

Ransom Note
YOUR FILES ARE ENCRYPTED !!! TO DECRYPT, FOLLOW THE INSTRUCTIONS: To recover data you need decrypt tool. To get the decrypt tool you should: 1.In the letter include your personal ID! Send me this ID in your first email to me! 2.We can give you free test for decrypt few files (NOT VALUE) and assign the price for decryption all files! 3.After we send you instruction how to pay for decrypt tool and after payment you will receive a decryption tool! 4.We can decrypt few files in quality the evidence that we have the decoder. CONTACT US: [email protected] YOUR PERSONAL ID: A3723262B8F2 �

Signatures

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
    ransomwareevasion
  • Modifies extensions of user files 4 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Enumerates connected drives 3 TTPs 24 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Interacts with shadow copies 2 TTPs 1 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

    ransomware
  • Modifies data under HKEY_USERS 47 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Ransom.exe
    "C:\Users\Admin\AppData\Local\Temp\Ransom.exe"
    1⤵
    • Modifies extensions of user files
    • Checks computer location settings
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2460
    • C:\Windows\system32\vssadmin.exe
      "C:\Windows\sysnative\vssadmin.exe" delete shadows /all /quiet
      2⤵
      • Interacts with shadow copies
      PID:3436
    • C:\Windows\system32\cmd.exe
      "C:\Windows\sysnative\cmd.exe" /c bcdedit /set {current} bootstatuspolicy ignoreallfailures
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:364
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {current} bootstatuspolicy ignoreallfailures
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:3724
    • C:\Windows\system32\cmd.exe
      "C:\Windows\sysnative\cmd.exe" /c bcdedit /set {current} recoveryenabled no
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2976
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {current} recoveryenabled no
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:2664
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3768
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1472
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k NetworkService -p
    1⤵
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    PID:1048

Network

MITRE ATT&CK Enterprise v6

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