Analysis

  • max time kernel
    134s
  • max time network
    132s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    31/03/2021, 02:58

General

  • Target
    document-253302845.xlsm
  • Size 105KB
  • Sample210331-5hyl1832nx
  • SHA256 be428c356669962ffc29fbd6c64d0e77f36fcd162349582d29772803d2eaa80c
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • icedid

Campaign
  • 3717128962

C2
  • usaaforced.fun

Signatures

  • IcedID, BokBot

    IcedID is a banking trojan capable of stealing credentials.

  • Process spawned unexpected child process 5 IoCs

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

  • IcedID First Stage Loader 1 IoCs
  • Blocklisted process makes network request 6 IoCs
  • Loads dropped DLL 3 IoCs
  • Checks processor information in registry 2 TTPs 3 IoCs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 10 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-253302845.xlsm"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1452
    • C:\Windows\SYSTEM32\rundll32.exe
      rundll32 ..\ksjvoefv.skd,DllRegisterServer
      2⤵
      • Process spawned unexpected child process
      • Blocklisted process makes network request
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      PID:2656
    • C:\Windows\SYSTEM32\rundll32.exe
      rundll32 ..\ksjvoefv.skd1,DllRegisterServer
      2⤵
      • Process spawned unexpected child process
      PID:848
    • C:\Windows\SYSTEM32\rundll32.exe
      rundll32 ..\ksjvoefv.skd2,DllRegisterServer
      2⤵
      • Process spawned unexpected child process
      PID:3532
    • C:\Windows\SYSTEM32\rundll32.exe
      rundll32 ..\ksjvoefv.skd3,DllRegisterServer
      2⤵
      • Process spawned unexpected child process
      • Blocklisted process makes network request
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      PID:3124
    • C:\Windows\SYSTEM32\rundll32.exe
      rundll32 ..\ksjvoefv.skd4,DllRegisterServer
      2⤵
      • Process spawned unexpected child process
      • Blocklisted process makes network request
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      PID:2168

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/1452-6-0x00007FFB58F00000-0x00007FFB59537000-memory.dmp

        memory/1452-2-0x00007FFB33400000-0x00007FFB33410000-memory.dmp

        memory/1452-5-0x00007FFB33400000-0x00007FFB33410000-memory.dmp

        memory/1452-4-0x00007FFB33400000-0x00007FFB33410000-memory.dmp

        memory/1452-3-0x00007FFB33400000-0x00007FFB33410000-memory.dmp

        memory/2656-10-0x0000012613430000-0x0000012613437000-memory.dmp