Analysis

  • max time kernel
    103s
  • max time network
    103s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    24-12-2022 18:01

General

  • Target

    indicarecords.document.12.23.2022.docm

  • Size

    1.3MB

  • MD5

    1e01c47850c37ea9baa4828dc210ff7a

  • SHA1

    25165a04ef5022fde2816d5bda10ce0796ffc529

  • SHA256

    c23b57235f44110edc1e435b5be54bac20ede351e2a390ae0e9aa889a58cf589

  • SHA512

    092b35caaefa1176533f939039d4e27deaf0d28fd7b0dedab6463c760b0f479315a62b125ac73ab4ffc3bcbbfdbfa5072a5de637ed6f44a4b33886c337b1c77d

  • SSDEEP

    24576:/opJmLOgHWi8bj11H2w5inpF7sONo/qiy7L9pvRDBG7EzqHm+Bmcr:/opJmgf3zliFppiKqG+L

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 2 IoCs
  • Loads dropped DLL 4 IoCs
  • Drops file in Windows directory 1 IoCs
  • Office loads VBA resources, possible macro or embedded object present
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\indicarecords.document.12.23.2022.docm"
    1⤵
    • Drops file in Windows directory
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1720
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:1740
    • C:\Windows\system32\rundll32.exe
      rundll32 C:\ProgramData\KBRU6.DLL,init
      1⤵
      • Process spawned unexpected child process
      • Blocklisted process makes network request
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      PID:1616

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Defense Evasion

    Modify Registry

    1
    T1112

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\ProgramData\KBRU6.DLL
      Filesize

      740KB

      MD5

      404584ebbd5392ae611636e83c80df07

      SHA1

      4215876dbb1d8b9d617e35a305ac1d9c03c3c138

      SHA256

      d5ebe22fde4037d1f40402ca98b6d33f34a66a5d01fc8b52ceb50c36329f6215

      SHA512

      7358450edb7df324d7a96709308f7ba81b347ed67adcd9806434e0d46b920ff8b10bf0511ff49ebd752b16ab038f6b67f67c252bdc4a5a551cc40ee9c8c61d1c

    • \ProgramData\KBRU6.DLL
      Filesize

      740KB

      MD5

      404584ebbd5392ae611636e83c80df07

      SHA1

      4215876dbb1d8b9d617e35a305ac1d9c03c3c138

      SHA256

      d5ebe22fde4037d1f40402ca98b6d33f34a66a5d01fc8b52ceb50c36329f6215

      SHA512

      7358450edb7df324d7a96709308f7ba81b347ed67adcd9806434e0d46b920ff8b10bf0511ff49ebd752b16ab038f6b67f67c252bdc4a5a551cc40ee9c8c61d1c

    • \ProgramData\KBRU6.DLL
      Filesize

      740KB

      MD5

      404584ebbd5392ae611636e83c80df07

      SHA1

      4215876dbb1d8b9d617e35a305ac1d9c03c3c138

      SHA256

      d5ebe22fde4037d1f40402ca98b6d33f34a66a5d01fc8b52ceb50c36329f6215

      SHA512

      7358450edb7df324d7a96709308f7ba81b347ed67adcd9806434e0d46b920ff8b10bf0511ff49ebd752b16ab038f6b67f67c252bdc4a5a551cc40ee9c8c61d1c

    • \ProgramData\KBRU6.DLL
      Filesize

      740KB

      MD5

      404584ebbd5392ae611636e83c80df07

      SHA1

      4215876dbb1d8b9d617e35a305ac1d9c03c3c138

      SHA256

      d5ebe22fde4037d1f40402ca98b6d33f34a66a5d01fc8b52ceb50c36329f6215

      SHA512

      7358450edb7df324d7a96709308f7ba81b347ed67adcd9806434e0d46b920ff8b10bf0511ff49ebd752b16ab038f6b67f67c252bdc4a5a551cc40ee9c8c61d1c

    • \ProgramData\KBRU6.DLL
      Filesize

      740KB

      MD5

      404584ebbd5392ae611636e83c80df07

      SHA1

      4215876dbb1d8b9d617e35a305ac1d9c03c3c138

      SHA256

      d5ebe22fde4037d1f40402ca98b6d33f34a66a5d01fc8b52ceb50c36329f6215

      SHA512

      7358450edb7df324d7a96709308f7ba81b347ed67adcd9806434e0d46b920ff8b10bf0511ff49ebd752b16ab038f6b67f67c252bdc4a5a551cc40ee9c8c61d1c

    • memory/1720-85-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-67-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
      Filesize

      64KB

    • memory/1720-57-0x0000000075701000-0x0000000075703000-memory.dmp
      Filesize

      8KB

    • memory/1720-58-0x0000000070C2D000-0x0000000070C38000-memory.dmp
      Filesize

      44KB

    • memory/1720-59-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-60-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-61-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-62-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-63-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-64-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-65-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-66-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-87-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-68-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-69-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-70-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-71-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-72-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-73-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-74-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-75-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-76-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-77-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-88-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-79-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-80-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-81-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-82-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-83-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-84-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-54-0x00000000721C1000-0x00000000721C4000-memory.dmp
      Filesize

      12KB

    • memory/1720-94-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-55-0x000000006FC41000-0x000000006FC43000-memory.dmp
      Filesize

      8KB

    • memory/1720-78-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-89-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-90-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-91-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-92-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-93-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-86-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-96-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-95-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-98-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-97-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-100-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-99-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-102-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-101-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-105-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-106-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-104-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-103-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-109-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-110-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-108-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-107-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-113-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-114-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-112-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-111-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-117-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-118-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-116-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-115-0x0000000000321000-0x0000000000325000-memory.dmp
      Filesize

      16KB

    • memory/1720-194-0x0000000070C2D000-0x0000000070C38000-memory.dmp
      Filesize

      44KB

    • memory/1720-192-0x0000000070C2D000-0x0000000070C38000-memory.dmp
      Filesize

      44KB

    • memory/1740-190-0x0000000000000000-mapping.dmp