Analysis

  • max time kernel
    145s
  • max time network
    129s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    18-02-2021 18:47

General

  • Target

    document-1743692288.xls

  • Size

    88KB

  • MD5

    fa1f35763e1c13386feca469dd16a22b

  • SHA1

    1cbfc5e62e085bba8366cc077dfc91923a8ceefd

  • SHA256

    c9def02fd0b90810e1ac5af1906e461c8c1a5534ee19b5b2ce7aac77f2943b54

  • SHA512

    31619aeebfdd1247252a9e3881c4ba5824b82558af2a814b1fe90b67b4403950f94f9ab02d968d30477031648cbf90c520b95f58f8beffa47952994a1c3b38dc

Malware Config

Extracted

Family

qakbot

Botnet

tr

Campaign

1613385567

C2

78.63.226.32:443

197.51.82.72:443

193.248.221.184:2222

95.77.223.148:443

71.199.192.62:443

77.211.30.202:995

80.227.5.69:443

77.27.204.204:995

81.97.154.100:443

173.184.119.153:995

38.92.225.121:443

81.150.181.168:2222

90.65.236.181:2222

83.110.103.152:443

73.153.211.227:443

188.25.63.105:443

89.137.211.239:995

202.188.138.162:443

98.173.34.212:995

87.202.87.210:2222

Signatures

  • Process spawned unexpected child process 1 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Qakbot/Qbot

    Qbot or Qakbot is a sophisticated worm with banking capabilities.

  • Loads dropped DLL 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 6 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
    "C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\document-1743692288.xls"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4684
    • C:\Windows\SYSTEM32\rundll32.exe
      rundll32 ..\idefje.ekfd,DllRegisterServer
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:4392
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32 ..\idefje.ekfd,DllRegisterServer
        3⤵
        • Loads dropped DLL
        • Checks SCSI registry key(s)
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:4324
        • C:\Windows\SysWOW64\explorer.exe
          C:\Windows\SysWOW64\explorer.exe
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:528
          • C:\Windows\SysWOW64\schtasks.exe
            "C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /tn wbppmmm /tr "regsvr32.exe -s \"\"" /SC ONCE /Z /ST 18:46 /ET 18:58
            5⤵
            • Creates scheduled task(s)
            PID:660
  • \??\c:\windows\system32\regsvr32.exe
    regsvr32.exe -s ""
    1⤵
      PID:1280

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/528-17-0x0000000002720000-0x0000000002755000-memory.dmp

      Filesize

      212KB

    • memory/528-16-0x0000000002720000-0x0000000002755000-memory.dmp

      Filesize

      212KB

    • memory/4324-12-0x0000000004E20000-0x0000000004E53000-memory.dmp

      Filesize

      204KB

    • memory/4324-11-0x0000000000C00000-0x0000000000C01000-memory.dmp

      Filesize

      4KB

    • memory/4324-13-0x00000000060A0000-0x00000000060D5000-memory.dmp

      Filesize

      212KB

    • memory/4684-4-0x00007FFEC57A0000-0x00007FFEC57B0000-memory.dmp

      Filesize

      64KB

    • memory/4684-2-0x00007FFEC57A0000-0x00007FFEC57B0000-memory.dmp

      Filesize

      64KB

    • memory/4684-3-0x00007FFEC57A0000-0x00007FFEC57B0000-memory.dmp

      Filesize

      64KB

    • memory/4684-5-0x00007FFEC57A0000-0x00007FFEC57B0000-memory.dmp

      Filesize

      64KB

    • memory/4684-6-0x00007FFEE8620000-0x00007FFEE8C57000-memory.dmp

      Filesize

      6.2MB