Resubmissions

11/11/2021, 01:05

211111-bfj74saed31

11/11/2021, 01:01

211111-bdh72aaec81

10/11/2021, 10:21

211110-mdncjadhgn1

Analysis

  • max time kernel
    132s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-en-20211104
  • submitted
    11/11/2021, 01:05

General

  • Target
    Bill.10099_2.xll.dll
  • Size 647KB
  • Sample211111-bfj74saed3
  • SHA256 ecced63b75f7967f2ec05955217d6e30bb45cb0dc7d620213defacf33174e953
  • MD5 SHA1 SHA512
Score
1/10

Malware Config

Signatures

  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\Bill.10099_2.xll.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1124
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\Bill.10099_2.xll.dll
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1876
  • C:\Windows\system32\verclsid.exe
    "C:\Windows\system32\verclsid.exe" /S /C {0B2C9183-C9FA-4C53-AE21-C900B0C39965} /I {0C733A8A-2A1C-11CE-ADE5-00AA0044773D} /X 0x401
    1⤵
      PID:1748
    • C:\Windows\system32\AUDIODG.EXE
      C:\Windows\system32\AUDIODG.EXE 0x1e0
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1496
    • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
      "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde
      1⤵
      • Enumerates system info in registry
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      PID:876

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          memory/876-69-0x000000002F381000-0x000000002F384000-memory.dmp

          memory/876-85-0x000000005FFF0000-0x0000000060000000-memory.dmp

          memory/876-84-0x000000000755B000-0x000000000756C000-memory.dmp

          memory/876-79-0x0000000007550000-0x0000000007551000-memory.dmp

          memory/876-80-0x0000000007551000-0x0000000007552000-memory.dmp

          memory/876-81-0x0000000007553000-0x0000000007554000-memory.dmp

          memory/876-82-0x0000000007554000-0x0000000007555000-memory.dmp

          memory/876-83-0x0000000007555000-0x0000000007557000-memory.dmp

          memory/876-71-0x000000005FFF0000-0x0000000060000000-memory.dmp

          memory/876-70-0x0000000071CA1000-0x0000000071CA3000-memory.dmp

          memory/1124-55-0x000007FEFC651000-0x000007FEFC653000-memory.dmp

          memory/1876-61-0x0000000004820000-0x0000000004856000-memory.dmp

          memory/1876-67-0x00000000044E0000-0x00000000044EA000-memory.dmp

          memory/1876-66-0x0000000000A1A000-0x0000000000A2B000-memory.dmp

          memory/1876-65-0x0000000000A14000-0x0000000000A16000-memory.dmp

          memory/1876-64-0x0000000000A13000-0x0000000000A14000-memory.dmp

          memory/1876-62-0x0000000000A11000-0x0000000000A12000-memory.dmp

          memory/1876-63-0x0000000000A12000-0x0000000000A13000-memory.dmp

          memory/1876-60-0x00000000048A0000-0x0000000004A1E000-memory.dmp

          memory/1876-58-0x0000000000940000-0x000000000094C000-memory.dmp

          memory/1876-57-0x00000000758F1000-0x00000000758F3000-memory.dmp