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Analysis

  • max time kernel
    117s
  • max time network
    129s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    31/12/2023, 03:55

General

  • Target

    271b9aa2476aca33609c50c52ae89af2.xlsm

  • Size

    320KB

  • MD5

    271b9aa2476aca33609c50c52ae89af2

  • SHA1

    c16c72b53a97fd5685e27ecb0a7adb5f64f8c9a2

  • SHA256

    0b421b87c36302cbad0135de0e6e6f4ff8968e3d2d4ea9d5bda1462d8ef14e49

  • SHA512

    6a284f9969a080a45acfefb7923e8d7d71d96550d9001bcd1def8ad0a39353b68e5f7d90081939cd7cabb91ed3ab880aa023d223970e0b164311a0e87b07817b

  • SSDEEP

    6144:STtZbAPPimNA/kjoitkGchiByRwhMOSTTcoKf6nhYYMfxg3wmhE0qf:otZbAPDNAcM2coByRwMOSTwNf6nhYYMV

Score
10/10

Malware Config

Signatures

  • Process spawned unexpected child process 1 IoCs

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

  • Blocklisted process makes network request 8 IoCs
  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 32 IoCs
  • Modifies registry class 64 IoCs
  • Modifies system certificate store 2 TTPs 5 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\271b9aa2476aca33609c50c52ae89af2.xlsm
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2880
    • C:\Windows\SysWOW64\MSHTA.exe
      MSHTA C:\ProgramData\bFWERerWbW.sct
      2⤵
      • Process spawned unexpected child process
      • Blocklisted process makes network request
      • Modifies Internet Explorer settings
      • Modifies system certificate store
      PID:2140

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\bFWERerWbW.sct

    Filesize

    26KB

    MD5

    f3d9981eafeaed7b4240d7922de3bce9

    SHA1

    f63f8fb2ea189a2f23a77300eb4b86f4d75dc745

    SHA256

    ea9fe0f7858931e74974e3712923942f9ba9be883ec32e06b8b62d009e3b026e

    SHA512

    ad065d44ec4b3536fa27bd144ae1410295170cba2190bac6816fcf046d136ca4bcdabe9b33aff4830cd53aa3cea6ab7d3ff7569a2dfd613662c5e2a66ac7b69a

  • memory/2880-1-0x000000007297D000-0x0000000072988000-memory.dmp

    Filesize

    44KB

  • memory/2880-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/2880-57-0x000000007297D000-0x0000000072988000-memory.dmp

    Filesize

    44KB

  • memory/2880-68-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/2880-69-0x000000007297D000-0x0000000072988000-memory.dmp

    Filesize

    44KB