Overview

overview

10

Static

static

winhost.exe

windows7-x64

10

winhost.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-09-2022 14:59

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General

  • Target

    winhost.exe

  • Size

    92KB

  • MD5

    c24f6144e905b717a372c529d969611e

  • SHA1

    0a297e9e5c807c06ad10f4f746f4f9e256df6743

  • SHA256

    94ef44e3f7be172fb47203eb942e4601f1a96cb4bfd37e055fd6cf39b5db49a6

  • SHA512

    f0b883f54808a5e669fdd7a41a3899d302edb8c4e6160ea88ec8cb25783d56c39a815b922b17ed133610f1dc3bc515eba63410d381d0e65e0998e2b752b0874f

  • SSDEEP

    1536:mBwl+KXpsqN5vlwWYyhY9S4AqVsOF7+9UFEkzgAhRJpOKGkEb1S/:Qw+asqN5aW/hLI1iUFEkJLJcUEb1S/

Score
10/10
dharmapersistenceransomwarespywarestealer

Malware Config

Extracted

Path

C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta

Ransom Note
YOUR FILES ARE ENCRYPTED Don't worry,you can return all your files! If you want to restore them, follow this link: email GetDecoding@zimbabwe.su YOUR ID If you have not been answered via the link within 12 hours, write to us by e-mail: getdecoding@msgsafe.io Attention! Do not rename encrypted files. Do not try to decrypt your data using third party software, it may cause permanent data loss. Decryption of your files with the help of third parties may cause increased price (they add their fee to our) or you can become a victim of a scam.
Emails

GetDecoding@zimbabwe.su

getdecoding@msgsafe.io

Signatures

  • Dharma

    Dharma is a ransomware that uses security software installation to hide malicious activities.

    ransomwaredharma
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops startup file 5 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

    spywarestealer
  • Adds Run key to start application 2 TTPs 3 IoCs
    persistence
  • Drops desktop.ini file(s) 64 IoCs
  • Drops file in System32 directory 2 IoCs
  • Drops file in Program Files directory 64 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 2 IoCs

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

    ransomware
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\winhost.exe
    "C:\Users\Admin\AppData\Local\Temp\winhost.exe"
    1⤵
    • Checks computer location settings
    • Drops startup file
    • Adds Run key to start application
    • Drops desktop.ini file(s)
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2132
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4256
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:4220
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:3476
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4880
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:4128
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:2816
        • C:\Windows\System32\mshta.exe
          "C:\Windows\System32\mshta.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
          2⤵
            PID:3696
          • C:\Windows\System32\mshta.exe
            "C:\Windows\System32\mshta.exe" "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
            2⤵
              PID:4612
          • C:\Windows\system32\vssvc.exe
            C:\Windows\system32\vssvc.exe
            1⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:4716

          Network

          MITRE ATT&CK Matrix ATT&CK v6

          Initial Access

          Execution

          Persistence

          Registry Run Keys / Startup Folder

          1
          T1060

          Privilege Escalation

          Defense Evasion

          File Deletion

          2
          T1107

          Modify Registry

          1
          T1112

          Credential Access

          Credentials in Files

          1
          T1081

          Discovery

          Query Registry

          1
          T1012

          System Information Discovery

          2
          T1082

          Lateral Movement

          Collection

          Data from Local System

          1
          T1005

          Exfiltration

          Command and Control

          Impact

          Inhibit System Recovery

          2
          T1490

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta
            Filesize

            7KB

            MD5

            94d88914713b6c9312c9a5d14f69626f

            SHA1

            3e18fd26e455bb603109b7f860b0c96d87cb499f

            SHA256

            88de37eb49f9935592e077254077b550f85f92e9acd61a55cdd5ddc882432fdd

            SHA512

            4c637d396bc51bd6e8d360ebc6553983683280720f7a8df6b06d7e024a4507d38feca009e99739621fa3f035e585a3506ff7a2f6f740c76e6f8c68040edf8418

            Download Submit
          • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta
            Filesize

            7KB

            MD5

            94d88914713b6c9312c9a5d14f69626f

            SHA1

            3e18fd26e455bb603109b7f860b0c96d87cb499f

            SHA256

            88de37eb49f9935592e077254077b550f85f92e9acd61a55cdd5ddc882432fdd

            SHA512

            4c637d396bc51bd6e8d360ebc6553983683280720f7a8df6b06d7e024a4507d38feca009e99739621fa3f035e585a3506ff7a2f6f740c76e6f8c68040edf8418

            Download Submit
          • memory/2816-137-0x0000000000000000-mapping.dmp
            Download
          • memory/3476-134-0x0000000000000000-mapping.dmp
            Download
          • memory/3696-138-0x0000000000000000-mapping.dmp
            Download
          • memory/4128-136-0x0000000000000000-mapping.dmp
            Download
          • memory/4220-133-0x0000000000000000-mapping.dmp
            Download
          • memory/4256-132-0x0000000000000000-mapping.dmp
            Download
          • memory/4612-139-0x0000000000000000-mapping.dmp
            Download
          • memory/4880-135-0x0000000000000000-mapping.dmp
            Download