Analysis

  • max time kernel
    110s
  • max time network
    22s
  • platform
    windows7_x64
  • resource
    win7v200722
  • submitted
    19/10/2020, 23:32

General

  • Target

    document-1311924528.xls

  • Size

    426KB

  • MD5

    239e3f828472fc7795bc8d34d1f64410

  • SHA1

    4c87db53f28684be1ffa40a3af9ff71e81349aef

  • SHA256

    4672c923c8680d66f43b4f960d8b2fc6d5c1b0bfaed766849a84dde4809fb8fe

  • SHA512

    33c60e63cb9a50679b3499954e4a773da48142d07f545dc36b9650418f0d3bc5aba73e6bda40970860db539e59d4fe07a0a7f7b2723636fa9ef29b35efb72fea

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 9 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-1311924528.xls
    1⤵
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:648
    • 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:320
      • C:\WErtu\Reterd\szvmhegu.exe
        C:\WErtu\Reterd\szvmhegu.exe /C
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        PID:1216
      • C:\Users\Admin\AppData\Roaming\Microsoft\Kerein\estluin.exe
        C:\Users\Admin\AppData\Roaming\Microsoft\Kerein\estluin.exe
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:820
        • C:\Users\Admin\AppData\Roaming\Microsoft\Kerein\estluin.exe
          C:\Users\Admin\AppData\Roaming\Microsoft\Kerein\estluin.exe /C
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          PID:1268
        • C:\Windows\SysWOW64\explorer.exe
          C:\Windows\SysWOW64\explorer.exe
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:1396
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /tn hxucmxwa /tr "\"C:\WErtu\Reterd\szvmhegu.exe\" /I hxucmxwa" /SC ONCE /Z /ST 01:31 /ET 01:43
        3⤵
        • Creates scheduled task(s)
        PID:1360
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {88520026-0528-4BA0-A812-1F82662406F2} S-1-5-18:NT AUTHORITY\System:Service:
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1928
    • C:\WErtu\Reterd\szvmhegu.exe
      C:\WErtu\Reterd\szvmhegu.exe /I hxucmxwa
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      PID:968

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • memory/648-6-0x0000000005F20000-0x0000000005F24000-memory.dmp

          Filesize

          16KB

        • memory/648-9-0x0000000004CB0000-0x0000000004CB4000-memory.dmp

          Filesize

          16KB

        • memory/648-1-0x0000000005CB0000-0x0000000005DB0000-memory.dmp

          Filesize

          1024KB

        • memory/648-5-0x0000000006F20000-0x0000000006F24000-memory.dmp

          Filesize

          16KB

        • memory/648-0-0x0000000005CB0000-0x0000000005DB0000-memory.dmp

          Filesize

          1024KB

        • memory/820-24-0x00000000003C0000-0x00000000003F7000-memory.dmp

          Filesize

          220KB

        • memory/1216-13-0x00000000024F0000-0x0000000002501000-memory.dmp

          Filesize

          68KB

        • memory/1268-23-0x0000000002580000-0x0000000002591000-memory.dmp

          Filesize

          68KB

        • memory/1944-2-0x000007FEF6710000-0x000007FEF698A000-memory.dmp

          Filesize

          2.5MB