Analysis

  • max time kernel
    4294223s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20220311-en
  • submitted
    26-03-2022 09:15

General

  • Target

    be9f1e5a89d5d9129066ddf11502ac234c317177916f9b0b90a53a22f95e3031.exe

  • Size

    207KB

  • MD5

    accba05c2a2ff131a835b32ef8e3dc67

  • SHA1

    5e73e4d47f20f0d836853ff4d1aca3ee6f140197

  • SHA256

    be9f1e5a89d5d9129066ddf11502ac234c317177916f9b0b90a53a22f95e3031

  • SHA512

    d82703661e029103f3153a7b2cdefc99fd8332aaaa56e23fa4bfd86c218fa118b5bebbe30e57e65e8d19bbd88dfd36ec45cd331e4a8719cb44437a660d9c6565

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\be9f1e5a89d5d9129066ddf11502ac234c317177916f9b0b90a53a22f95e3031.exe
    "C:\Users\Admin\AppData\Local\Temp\be9f1e5a89d5d9129066ddf11502ac234c317177916f9b0b90a53a22f95e3031.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:1248
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1168
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:1880
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:1884
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:628

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1168-56-0x0000000000000000-mapping.dmp

    • memory/1248-54-0x0000000000A8B000-0x0000000000A9E000-memory.dmp

      Filesize

      76KB

    • memory/1248-55-0x0000000076071000-0x0000000076073000-memory.dmp

      Filesize

      8KB

    • memory/1248-59-0x0000000000220000-0x0000000000239000-memory.dmp

      Filesize

      100KB

    • memory/1248-58-0x0000000000A8B000-0x0000000000A9E000-memory.dmp

      Filesize

      76KB

    • memory/1248-61-0x0000000000400000-0x00000000008D3000-memory.dmp

      Filesize

      4.8MB

    • memory/1880-57-0x0000000000000000-mapping.dmp

    • memory/1884-60-0x0000000000000000-mapping.dmp