Analysis

  • max time kernel
    146s
  • max time network
    77s
  • platform
    windows7_x64
  • resource
    win7-20220331-en
  • submitted
    27-03-2022 20:38

General

  • Target

    621a3272c3aa5bafce9b7a7341928ec49d7e04554b444ada2fbffe3f220eedc5.exe

  • Size

    351KB

  • MD5

    34519db4db82daece95ff30eebed6485

  • SHA1

    5568bef18cf8dda8bac65687808e979bb66ea8f5

  • SHA256

    621a3272c3aa5bafce9b7a7341928ec49d7e04554b444ada2fbffe3f220eedc5

  • SHA512

    ebfa0bf8948e71a3bee45233cb4700bf4d49be4546b1cfd5247c442903b187f6e3d44a902233c9c39fc42a5d012abf4334e081c1950c4d7354f3fdfa0eac1927

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\621a3272c3aa5bafce9b7a7341928ec49d7e04554b444ada2fbffe3f220eedc5.exe
    "C:\Users\Admin\AppData\Local\Temp\621a3272c3aa5bafce9b7a7341928ec49d7e04554b444ada2fbffe3f220eedc5.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:1228
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1744
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:1368
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:576
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1840

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/576-59-0x0000000000000000-mapping.dmp

    • memory/1228-55-0x0000000000400000-0x000000000045C000-memory.dmp

      Filesize

      368KB

    • memory/1228-56-0x0000000076E21000-0x0000000076E23000-memory.dmp

      Filesize

      8KB

    • memory/1228-54-0x0000000000240000-0x0000000000264000-memory.dmp

      Filesize

      144KB

    • memory/1368-58-0x0000000000000000-mapping.dmp

    • memory/1744-57-0x0000000000000000-mapping.dmp