Overview

overview

10

Static

static

10

0a40acb8dd...b4.exe

windows7-x64

10

0a40acb8dd...b4.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-04-2024 12:16

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General

  • Target

    0a40acb8ddbc2ed8f8b703681fadf9fcb2672fdb75d93c150b45c6465cc9b1b4.exe

  • Size

    92KB

  • MD5

    44ff6136293b783a38c252ee5025dc87

  • SHA1

    1207eee8da1eadc46cbf8fd4a1ac1684989ff6d1

  • SHA256

    0a40acb8ddbc2ed8f8b703681fadf9fcb2672fdb75d93c150b45c6465cc9b1b4

  • SHA512

    b15cca683b3a5f66a4ad1ad1af2d765e6059ff09362101a8797281f3bebc341b121bfba1cdfc79f755207b093a49e069e5726e8a70453870d418c5e09beff80b

  • SSDEEP

    1536:mBwl+KXpsqN5vlwWYyhY9S4A9xj2yu5J+/APEytVw5Jo1uR6tqZtZn97f:Qw+asqN5aW/hLj92yuK/9PJoE86JVf

Score
10/10
dharmapersistenceransomwarespywarestealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Roaming\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 [email protected] YOUR ID If you have not been answered via the link within 12 hours, write to us by e-mail: [email protected] 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.

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
  • Renames multiple (496) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

    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).

  • 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
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\0a40acb8ddbc2ed8f8b703681fadf9fcb2672fdb75d93c150b45c6465cc9b1b4.exe
    "C:\Users\Admin\AppData\Local\Temp\0a40acb8ddbc2ed8f8b703681fadf9fcb2672fdb75d93c150b45c6465cc9b1b4.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:1664
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1896
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:4880
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:5648
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:5760
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:6532
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:5740
        • 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:2148
          • C:\Windows\System32\mshta.exe
            "C:\Windows\System32\mshta.exe" "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
            2⤵
              PID:6420
          • C:\Windows\system32\vssvc.exe
            C:\Windows\system32\vssvc.exe
            1⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:1860

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • C:\Program Files\Common Files\microsoft shared\ClickToRun\appvcleaner.exe.id-7786A9B0.[[email protected]].tcprx
            Filesize

            2.9MB

            MD5

            2af3580b4f676e2f0e1842eff947aba5

            SHA1

            624811ab51eb374a6ad3b5269b5d92548c13587e

            SHA256

            587cce78901914480d5ffec8b16e7318dfb09318d338410c0973905f8dfdb93a

            SHA512

            4ae2403cd4df6539474210ed388ec087bb627040b5a481a22833f0126e35cf38b3f7dd6469a939f129b0118df02f3592a700a8cc324fd5a0f967a9a26982c59b

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

            7KB

            MD5

            77e1962b4fac182699935972f82f8c6b

            SHA1

            13a87da7252fae6089d197fba43716f58df4d810

            SHA256

            6b4c7122e18821f422da9c30c2a7e4c60f7afcec0364fcb14135b2c5d750102c

            SHA512

            47ea75fbcf58ef2784f3a99f8c526d5851a77e336a9d2e1fb7b20fe1893335924a5178950ed6f981258c62cda9e7a70f2438633a6bd312a41faf9cb504e43db1

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