Analysis

  • max time kernel
    152s
  • max time network
    47s
  • platform
    windows7_x64
  • resource
    win7-20220718-en
  • resource tags

    arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-x64system
  • submitted
    20-07-2022 19:07

General

  • Target

    4dfb0748b865606fdfbcb046eab2514782b58877eb8bce148fa8085df69d3c21.exe

  • Size

    92KB

  • MD5

    0a9a769931b1ecddb4784e319ae58153

  • SHA1

    5d25e90050a7a3c3469596a5d1cc6b3b039fc86d

  • SHA256

    4dfb0748b865606fdfbcb046eab2514782b58877eb8bce148fa8085df69d3c21

  • SHA512

    13faa057946b671a3a8f6c2946a69518bef5da40c687ab93f646cec96dc739b487ee23606c52ca4900108ae5c45fbafe630c2eb6f46ba3f1c366b1122470ab7c

Malware Config

Signatures

  • Dharma

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

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Drops startup file 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops desktop.ini file(s) 13 IoCs
  • Drops file in System32 directory 1 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Interacts with shadow copies 2 TTPs 1 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 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4dfb0748b865606fdfbcb046eab2514782b58877eb8bce148fa8085df69d3c21.exe
    "C:\Users\Admin\AppData\Local\Temp\4dfb0748b865606fdfbcb046eab2514782b58877eb8bce148fa8085df69d3c21.exe"
    1⤵
    • 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:1092
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1420
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:1996
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:1764
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1712

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1092-54-0x00000000763E1000-0x00000000763E3000-memory.dmp

      Filesize

      8KB

    • memory/1420-55-0x0000000000000000-mapping.dmp

    • memory/1764-57-0x0000000000000000-mapping.dmp

    • memory/1996-56-0x0000000000000000-mapping.dmp