Analysis

  • max time kernel
    134s
  • max time network
    28s
  • platform
    windows7_x64
  • resource
    win7v200722
  • submitted
    19/10/2020, 23:32

General

  • Target

    document-130963546.xls

  • Size

    426KB

  • MD5

    e6a313629e3d393757f5d9af7d72db0a

  • SHA1

    371599075621c927d957fd37406ded41b3a51a59

  • SHA256

    e54a600afe0e7f2b720ba142bff85f8d7a6ef424aecba8b56157a5a8474330e2

  • SHA512

    3a432e96754f8278b5f93365c0e88687a9f66836608ab87f75b8fb1a32799af8a208b5c3fabaf6851c4dc7dfe1084ea9224201b76a423082ba975bcd3d431300

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-130963546.xls
    1⤵
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:824
    • 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:768
      • C:\WErtu\Reterd\szvmhegu.exe
        C:\WErtu\Reterd\szvmhegu.exe /C
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        PID:1372
      • C:\Users\Admin\AppData\Roaming\Microsoft\Czsubbeqiiui\ewjendv.exe
        C:\Users\Admin\AppData\Roaming\Microsoft\Czsubbeqiiui\ewjendv.exe
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:1688
        • C:\Users\Admin\AppData\Roaming\Microsoft\Czsubbeqiiui\ewjendv.exe
          C:\Users\Admin\AppData\Roaming\Microsoft\Czsubbeqiiui\ewjendv.exe /C
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          PID:1380
        • C:\Windows\SysWOW64\explorer.exe
          C:\Windows\SysWOW64\explorer.exe
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:888
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /tn oybbmveqn /tr "\"C:\WErtu\Reterd\szvmhegu.exe\" /I oybbmveqn" /SC ONCE /Z /ST 01:42 /ET 01:54
        3⤵
        • Creates scheduled task(s)
        PID:452
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {4CA91019-FCA0-41C0-BF08-BF20615DAF07} S-1-5-18:NT AUTHORITY\System:Service:
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1696
    • C:\WErtu\Reterd\szvmhegu.exe
      C:\WErtu\Reterd\szvmhegu.exe /I oybbmveqn
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      PID:960

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • memory/824-6-0x00000000061C0000-0x00000000061C4000-memory.dmp

          Filesize

          16KB

        • memory/824-9-0x0000000004F10000-0x0000000004F14000-memory.dmp

          Filesize

          16KB

        • memory/824-5-0x00000000071C0000-0x00000000071C4000-memory.dmp

          Filesize

          16KB

        • memory/1372-13-0x0000000002510000-0x0000000002521000-memory.dmp

          Filesize

          68KB

        • memory/1380-23-0x00000000025C0000-0x00000000025D1000-memory.dmp

          Filesize

          68KB

        • memory/1688-24-0x00000000023C0000-0x00000000023F7000-memory.dmp

          Filesize

          220KB

        • memory/1808-2-0x000007FEF6690000-0x000007FEF690A000-memory.dmp

          Filesize

          2.5MB