Analysis

  • max time kernel
    151s
  • max time network
    57s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    27-04-2022 18:01

General

  • Target

    fc5e278e8b7c1213d0275e4995a5e75755da21118d8b3693da20770454851cd9.exe

  • Size

    313KB

  • MD5

    bac67b46e45cc465fc563f39bbbfff21

  • SHA1

    a9f06fe45514088ec97da9bf3a94e1358c428ed7

  • SHA256

    fc5e278e8b7c1213d0275e4995a5e75755da21118d8b3693da20770454851cd9

  • SHA512

    83e0859e33e07bc1ad5a52ea3ea4161eada633fa089a6ae95656bc820bf73c77b08aef0f03af8c279dafe42081327f982d727bfe398f1346ca7e3a0d2b81e305

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) 12 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\fc5e278e8b7c1213d0275e4995a5e75755da21118d8b3693da20770454851cd9.exe
    "C:\Users\Admin\AppData\Local\Temp\fc5e278e8b7c1213d0275e4995a5e75755da21118d8b3693da20770454851cd9.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:1504
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1792
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:2036
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:1828
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1456

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1504-54-0x0000000000020000-0x0000000000033000-memory.dmp

      Filesize

      76KB

    • memory/1504-55-0x00000000001B0000-0x00000000001C9000-memory.dmp

      Filesize

      100KB

    • memory/1504-56-0x0000000075371000-0x0000000075373000-memory.dmp

      Filesize

      8KB

    • memory/1504-58-0x0000000000400000-0x00000000004DE000-memory.dmp

      Filesize

      888KB

    • memory/1792-57-0x0000000000000000-mapping.dmp

    • memory/1828-60-0x0000000000000000-mapping.dmp

    • memory/2036-59-0x0000000000000000-mapping.dmp