Analysis

  • max time kernel
    120s
  • max time network
    96s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-12-2024 10:16

General

  • Target

    9d131d41b278c689424e6713a320e8e410501b17260bdb2a6770d9e407d82df0N.exe

  • Size

    92KB

  • MD5

    56d8d0386a2dc75b88ca52ddafbd3430

  • SHA1

    165b9b0cb19bd4f849f2431b12028c179be57780

  • SHA256

    9d131d41b278c689424e6713a320e8e410501b17260bdb2a6770d9e407d82df0

  • SHA512

    02048a750b58befcdfe202626af009896d035a8a065d9fa87061fc85b94286e614f73a513ec436355a2edff1c56c53c40238f5f030106ebe9ab989d1c58693d5

  • SSDEEP

    1536:mBwl+KXpsqN5vlwWYyhY9S4AgOWEtLXa7ujvLCh2k77Z8fDaQg9EgDCO/v:Qw+asqN5aW/hLiOWsFj0vFaDaQSE3A

Malware Config

Signatures

  • Dharma

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

  • Dharma family
  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Renames multiple (511) files with added filename extension

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

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Credentials from Password Stores: Windows Credential Manager 1 TTPs

    Suspicious access to Credentials History.

  • Drops startup file 5 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • Adds Run key to start application 2 TTPs 3 IoCs
  • Drops desktop.ini file(s) 64 IoCs
  • Drops file in System32 directory 2 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Interacts with shadow copies 3 TTPs 2 IoCs

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

  • 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.

Processes

  • C:\Users\Admin\AppData\Local\Temp\9d131d41b278c689424e6713a320e8e410501b17260bdb2a6770d9e407d82df0N.exe
    "C:\Users\Admin\AppData\Local\Temp\9d131d41b278c689424e6713a320e8e410501b17260bdb2a6770d9e407d82df0N.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
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1408
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3244
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:444
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:5808
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2032
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:4468
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:7812
        • 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:8156
          • C:\Windows\System32\mshta.exe
            "C:\Windows\System32\mshta.exe" "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
            2⤵
              PID:6400
          • C:\Windows\system32\vssvc.exe
            C:\Windows\system32\vssvc.exe
            1⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:7016

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Program Files\Common Files\microsoft shared\ClickToRun\C2R64.dll.id-6A3222F7.[[email protected]].MAGA

            Filesize

            3.6MB

            MD5

            7a81c6f2fa0b82a29567536507ac2f95

            SHA1

            fd28d588f73b77245712f90fe1a312198b0f861a

            SHA256

            0ab2bfbc9a6e20bcbba76f44178c5bd832ec59e3b5f0e351b2ae9064b6f08de2

            SHA512

            92ec6bd9584e74f7a06e2f30df846721e566a4bb17ee7e63a2b642552de1a9a7e4011e94f860178970c50bdc16bfce2dbfd90cbcf302c9310e75c331d1663555

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

            Filesize

            1KB

            MD5

            133a349b5f483c7b8c9c3549d65ca464

            SHA1

            7799b7933ae3f846c288296672d7c70fee2c8d20

            SHA256

            356f6ce45b2067d14dd2b505a68762fba50e29e131a7b0006119feda1fb03286

            SHA512

            1f70d9f1d7a3d18905a5bd0ef38ebbe84317833cb9dbb5d4b1bb989d0b83066d38ae6de48aa27f80f02c073870a34c894c8204e3ff725eb3b80f18aaf6f30338