Analysis

  • max time kernel
    72s
  • max time network
    114s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    01/04/2021, 14:51

General

  • Target

    msals.pumpl.dll

  • Size

    360KB

  • MD5

    5a7d31a2f95b5453756b0143f5845824

  • SHA1

    bbae23a96a04293fd0cbe0d4425a9ac617be6283

  • SHA256

    8e73bfc2ac13b61960a5a2213198c2b0ee76774acb4fe9a02f972ec6d006bd8a

  • SHA512

    352b04b1a0707dffc71f8e113ed423b4676caddddc9e475065ab32f4824b89a58d5b68f0d3e39ee240b219de4f969c95f909585681cba991c4e4ea397b537e63

Malware Config

Extracted

Family

hancitor

Botnet

0104_verf1

C2

http://cilidobas.com/8/forum.php

http://onvoursmo.ru/8/forum.php

http://bilematicdu.ru/8/forum.php

Signatures

  • Hancitor

    Hancitor is downloader used to deliver other malware families.

  • Blocklisted process makes network request 3 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\msals.pumpl.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2032
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\msals.pumpl.dll,#1
      2⤵
      • Blocklisted process makes network request
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1364
      • C:\Windows\SysWOW64\svchost.exe
        C:\Windows\System32\svchost.exe
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1120
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1120 -s 880
          4⤵
          • Program crash
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1172

Network

        MITRE ATT&CK Matrix

        Replay Monitor

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        Downloads

        • memory/1120-7-0x0000000000400000-0x0000000000448000-memory.dmp

          Filesize

          288KB

        • memory/1120-10-0x0000000000400000-0x0000000000448000-memory.dmp

          Filesize

          288KB

        • memory/1172-12-0x0000000002000000-0x0000000002011000-memory.dmp

          Filesize

          68KB

        • memory/1172-13-0x0000000000440000-0x0000000000441000-memory.dmp

          Filesize

          4KB

        • memory/1364-3-0x0000000075C31000-0x0000000075C33000-memory.dmp

          Filesize

          8KB

        • memory/1364-4-0x0000000075420000-0x000000007542A000-memory.dmp

          Filesize

          40KB

        • memory/1364-5-0x00000000000C0000-0x00000000000C1000-memory.dmp

          Filesize

          4KB

        • memory/1992-6-0x000007FEF6B90000-0x000007FEF6E0A000-memory.dmp

          Filesize

          2.5MB