Analysis

  • max time kernel
    155s
  • max time network
    26s
  • platform
    windows7_x64
  • resource
    win7v200722
  • submitted
    19/10/2020, 23:32

General

  • Target

    document-1255716615.xls

  • Size

    426KB

  • MD5

    f06c33436ce77ad4e943f7a606e884c1

  • SHA1

    cbd3c7f36366ada0eac0d7f9eee0567772fcc65e

  • SHA256

    a266df06bbfd7f611ed1534c19ce63a781d3f992c5709ea096281b4729f0b579

  • SHA512

    c8d48b6728804c66874514823ee522a6bb54bfe4886fa0a235416642d4c5b6a78cc9dd6d3dfc9c37634013d219dd360afc1c835ed057517fd65ca9d8fc054c20

Malware Config

Extracted

Family

qakbot

Botnet

tr01

Campaign

1602688146

C2

73.228.1.246:443

74.109.219.145:443

76.111.128.194:443

90.175.88.99:2222

108.191.28.158:443

68.225.60.77:443

75.136.40.155:443

5.193.181.221:2078

72.204.242.138:20

118.160.162.234:443

68.14.210.246:22

148.101.74.12:443

74.222.204.82:443

96.30.198.161:443

140.82.27.132:443

2.50.131.64:443

45.32.155.12:995

45.63.104.123:443

45.32.165.134:443

217.162.149.212:443

Signatures

  • Qakbot/Qbot

    Qbot or Qakbot is a sophisticated worm with banking capabilities.

  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 2 IoCs
  • Office loads VBA resources, possible macro or embedded object present
  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 29 IoCs

Processes

  • C:\Program Files\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\document-1255716615.xls
    1⤵
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1412
    • C:\WErtu\Reterd\szvmhegu.exe
      "C:\WErtu\Reterd\szvmhegu.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2012
      • C:\WErtu\Reterd\szvmhegu.exe
        C:\WErtu\Reterd\szvmhegu.exe /C
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        PID:608
      • C:\Users\Admin\AppData\Roaming\Microsoft\Yrqtb\eywvusbu.exe
        C:\Users\Admin\AppData\Roaming\Microsoft\Yrqtb\eywvusbu.exe
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:1444
        • C:\Users\Admin\AppData\Roaming\Microsoft\Yrqtb\eywvusbu.exe
          C:\Users\Admin\AppData\Roaming\Microsoft\Yrqtb\eywvusbu.exe /C
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          PID:2036
        • C:\Windows\SysWOW64\explorer.exe
          C:\Windows\SysWOW64\explorer.exe
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:692
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /tn lngyskriyc /tr "\"C:\WErtu\Reterd\szvmhegu.exe\" /I lngyskriyc" /SC ONCE /Z /ST 01:43 /ET 01:55
        3⤵
        • Creates scheduled task(s)
        PID:2024
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {F6AAF506-82FC-4DA3-9E7B-E668ADBDDC53} S-1-5-18:NT AUTHORITY\System:Service:
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1476
    • C:\WErtu\Reterd\szvmhegu.exe
      C:\WErtu\Reterd\szvmhegu.exe /I lngyskriyc
      2⤵
      • Executes dropped EXE
      PID:1868

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • memory/608-12-0x00000000026A0000-0x00000000026B1000-memory.dmp

          Filesize

          68KB

        • memory/1412-8-0x0000000004CC0000-0x0000000004CC4000-memory.dmp

          Filesize

          16KB

        • memory/1412-5-0x0000000005FA0000-0x0000000005FA4000-memory.dmp

          Filesize

          16KB

        • memory/1412-4-0x0000000006FA0000-0x0000000006FA4000-memory.dmp

          Filesize

          16KB

        • memory/1444-22-0x00000000003C0000-0x00000000003F7000-memory.dmp

          Filesize

          220KB

        • memory/1812-1-0x000007FEF83B0000-0x000007FEF862A000-memory.dmp

          Filesize

          2.5MB

        • memory/2036-21-0x0000000002430000-0x0000000002441000-memory.dmp

          Filesize

          68KB