Overview

overview

10

Static

static

10

53d606ea6c...62.exe

windows7_x64

10

53d606ea6c...62.exe

windows10-2004_x64

10

Resubmissions

15/02/2022, 03:50

220215-ed4qhsafe510

15/02/2022, 02:39

220215-c5e55acbcm10

Analysis

  • max time kernel
    86s
  • max time network
    86s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    15/02/2022, 03:50

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General

  • Target
    53d606ea6cea8fba9ca4fdd1af411c1212ad20678cd22a43697c4b8e9b371f62.exe
  • Size 129KB
  • Sample220215-ed4qhsafe5
  • SHA256 53d606ea6cea8fba9ca4fdd1af411c1212ad20678cd22a43697c4b8e9b371f62
  • MD5 SHA1 SHA512
Score
10/10
targetcompanyevasionransomware

Malware Config

Extracted

Path

  • C:\$Recycle.Bin\How to decrypt files.txt

  • targetcompany

Ransom Note
  • Your personal identifier: CAR8FNNCXM All files on Carone and Company Inc network have been encrypted due to insufficient security. The only way to quickly and reliably regain access to your files is to contact us. The price depends on how fast you write to us. In other cases, you risk losing your time and access to data. Usually time is much more valuable than money. In addition to encryption, we downloaded 700 gb of data from your network, which, if we do not negotiate, could fall into the hands of third parties and cause damage to your reputation. FAQ Q: How to contact us A: * Download Tor Browser - https://www.torproject.org/ * Open link in Tor Browser http://jnjorcburoayrwfrmnq3czngju76wdjyuyufqaep6joutvidohuh24ad.onion/contact * Follow the instructions on the website. Q: What guarantees? A: Before paying, we can decrypt several of your test files. Files should not contain valuable information. Q: Can I decrypt my data for free or through intermediaries? A: Use third party programs and intermediaries at your own risk. Third party software may cause permanent data loss. Decryption of your files with the help of third parties may cause increased price or you can become a victim of a scam. �
URLs

  • http://jnjorcburoayrwfrmnq3czngju76wdjyuyufqaep6joutvidohuh24ad.onion/contact

Signatures

  • TargetCompany

    Ransomware which encrypts files using a combination of ChaCha20, AES-128, and Curve25519, first seen in June 2021.

    ransomwaretargetcompany
  • 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 10 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 8 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Interacts with shadow copies 2 TTPs 1 IoCs

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

    ransomware
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\53d606ea6cea8fba9ca4fdd1af411c1212ad20678cd22a43697c4b8e9b371f62.exe
    "C:\Users\Admin\AppData\Local\Temp\53d606ea6cea8fba9ca4fdd1af411c1212ad20678cd22a43697c4b8e9b371f62.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:792
    • C:\Windows\system32\vssadmin.exe
      "C:\Windows\sysnative\vssadmin.exe" delete shadows /all /quiet
      2⤵
      • Interacts with shadow copies
      PID:1144
    • C:\Windows\system32\cmd.exe
      "C:\Windows\sysnative\cmd.exe" /c bcdedit /set {current} bootstatuspolicy ignoreallfailures
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:636
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {current} bootstatuspolicy ignoreallfailures
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:3164
    • C:\Windows\system32\cmd.exe
      "C:\Windows\sysnative\cmd.exe" /c bcdedit /set {current} recoveryenabled no
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1176
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {current} recoveryenabled no
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:1852
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3680
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    PID:1436
  • C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe
    C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    PID:4380

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/1436-130-0x0000026E53BA0000-0x0000026E53BB0000-memory.dmp
        Download

        memory/1436-131-0x0000026E542F0000-0x0000026E54300000-memory.dmp
        Download

        memory/1436-132-0x0000026E56820000-0x0000026E56824000-memory.dmp
        Download