Analysis

  • max time kernel
    4294213s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7-20220311-en
  • submitted
    30-03-2022 01:14

General

  • Target

    80130935101adaabe9e85bb9d3aa21a195bf041b8d71989773cfe9f442868a31.exe

  • Size

    492KB

  • MD5

    cf33054b5e1551583945bc1960af2864

  • SHA1

    27888d41034f43ae52f17d15896f6a919e37ade0

  • SHA256

    80130935101adaabe9e85bb9d3aa21a195bf041b8d71989773cfe9f442868a31

  • SHA512

    a92fbcbe9494dd055f43bc468ec8826f26147a185f46996240ac68b48f663adbb74007a5170af9cb7b5151b7b3df6d1d8e822323bba6dc3f565be4008f0fec68

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\80130935101adaabe9e85bb9d3aa21a195bf041b8d71989773cfe9f442868a31.exe
    "C:\Users\Admin\AppData\Local\Temp\80130935101adaabe9e85bb9d3aa21a195bf041b8d71989773cfe9f442868a31.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:1860
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1952
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:1804
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:436
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1288

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/436-59-0x0000000000000000-mapping.dmp
    • memory/1804-57-0x0000000000000000-mapping.dmp
    • memory/1860-54-0x0000000075E61000-0x0000000075E63000-memory.dmp
      Filesize

      8KB

    • memory/1860-55-0x0000000000400000-0x0000000000480000-memory.dmp
      Filesize

      512KB

    • memory/1860-58-0x0000000002000000-0x0000000002590000-memory.dmp
      Filesize

      5.6MB

    • memory/1952-56-0x0000000000000000-mapping.dmp