Overview

overview

10

Static

static

7981bc361e...10.exe

windows7_x64

10

7981bc361e...10.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    4294213s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20220311-en
  • submitted
    30-03-2022 01:14

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General

  • Target

    7981bc361ea1943e7f59c311fca4a7b755ab1986dfac78b1f0a8a45c0d69c110.exe

  • Size

    201KB

  • MD5

    0806b9dd009b8412f943c22bd1aee283

  • SHA1

    4ecec62e67aa4fb2739d0f5e747dea8bb109fc0e

  • SHA256

    7981bc361ea1943e7f59c311fca4a7b755ab1986dfac78b1f0a8a45c0d69c110

  • SHA512

    d3c07d72f60a5e88acbc01c8dde100b1d31b44fa58eda5637b26d3f94b952bc671cd8ac62c841760b91a76ca3deb23a3aa49b23355b3b09cfe28c2b9df65dab7

Score
10/10
dharmapersistenceransomwarespywarestealer

Malware Config

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
  • Modifies extensions of user files 3 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • 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 1 IoCs
    persistence
  • Drops desktop.ini file(s) 64 IoCs
  • Drops file in System32 directory 1 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 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7981bc361ea1943e7f59c311fca4a7b755ab1986dfac78b1f0a8a45c0d69c110.exe
    "C:\Users\Admin\AppData\Local\Temp\7981bc361ea1943e7f59c311fca4a7b755ab1986dfac78b1f0a8a45c0d69c110.exe"
    1⤵
    • Modifies extensions of user files
    • 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:864
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1068
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:1612
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:1140
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1008
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:1048
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:1256
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1704

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/864-54-0x000000000304B000-0x000000000305E000-memory.dmp

        Filesize

        76KB

        Download

      • memory/864-55-0x0000000075DF1000-0x0000000075DF3000-memory.dmp

        Filesize

        8KB

        Download

      • memory/864-57-0x00000000002C0000-0x00000000002D9000-memory.dmp

        Filesize

        100KB

        Download

      • memory/864-56-0x000000000304B000-0x000000000305E000-memory.dmp

        Filesize

        76KB

        Download

      • memory/864-58-0x0000000000400000-0x0000000002FBF000-memory.dmp

        Filesize

        43.7MB

        Download

      • memory/1008-62-0x0000000000000000-mapping.dmp

        Download

      • memory/1048-63-0x0000000000000000-mapping.dmp

        Download

      • memory/1068-59-0x0000000000000000-mapping.dmp

        Download

      • memory/1140-61-0x0000000000000000-mapping.dmp

        Download

      • memory/1256-64-0x0000000000000000-mapping.dmp

        Download

      • memory/1612-60-0x0000000000000000-mapping.dmp

        Download