Analysis

  • max time kernel
    111s
  • max time network
    57s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    25-11-2022 09:02

General

  • Target

    SURENDER BL.rtf

  • Size

    24KB

  • MD5

    12f7492e0b937a3e8eda18950bb84d23

  • SHA1

    4d92fd377c76c764057564a2bc208f6db7ec88c2

  • SHA256

    1a656f17d0145cb825fb192f30b3ea8a40478bf0225e7d64ff0059bfba7473ab

  • SHA512

    9e4ac55c83d986c5379c02b6ae786cdd4e369ea8b022e53a81843ffd1a968136a9c0c3bef8439a6834c439636f3a35bec0fe55a3bf7e844c08c2b5429ecb17d2

  • SSDEEP

    384:cQMmdOFNYY0aaaIswqPeOrka1+fHQJ+t3rQkRhZV53GflpBLxvpkAmwzPlglFgf0:YFx0XaIsnPRIa4fwJM1GZkAtzPWga9

Score
8/10

Malware Config

Signatures

  • Blocklisted process makes network request 1 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Drops file in Windows directory 1 IoCs
  • Office loads VBA resources, possible macro or embedded object present
  • Launches Equation Editor 1 TTPs 1 IoCs

    Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.

  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 8 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\SURENDER BL.rtf"
    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:748
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:816
    • C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
      "C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
      1⤵
      • Blocklisted process makes network request
      • Loads dropped DLL
      • Launches Equation Editor
      • Suspicious use of WriteProcessMemory
      PID:1724
      • C:\Users\Admin\AppData\Roaming\bankgy896523.exe
        "C:\Users\Admin\AppData\Roaming\bankgy896523.exe"
        2⤵
        • Executes dropped EXE
        PID:1152

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Roaming\bankgy896523.exe

      Filesize

      720KB

      MD5

      1143a49474a9e04635652039747cdde4

      SHA1

      d80ed0fbec15c3bab2ceae8e3f4295e89bed3fef

      SHA256

      d2bb93bd846b91bdd8e55a84c14bb324761328b8b08d8ebf2493b09277c5bdac

      SHA512

      4b6a04ae6a1698c56a3762218cabca55cf6bcf35b96fbca7c5bc5289dc8d116b47f639bceed14d621f9169585115576d75014177eb47bb6d0f509e89b2eed38c

    • C:\Users\Admin\AppData\Roaming\bankgy896523.exe

      Filesize

      720KB

      MD5

      1143a49474a9e04635652039747cdde4

      SHA1

      d80ed0fbec15c3bab2ceae8e3f4295e89bed3fef

      SHA256

      d2bb93bd846b91bdd8e55a84c14bb324761328b8b08d8ebf2493b09277c5bdac

      SHA512

      4b6a04ae6a1698c56a3762218cabca55cf6bcf35b96fbca7c5bc5289dc8d116b47f639bceed14d621f9169585115576d75014177eb47bb6d0f509e89b2eed38c

    • \Users\Admin\AppData\Roaming\bankgy896523.exe

      Filesize

      720KB

      MD5

      1143a49474a9e04635652039747cdde4

      SHA1

      d80ed0fbec15c3bab2ceae8e3f4295e89bed3fef

      SHA256

      d2bb93bd846b91bdd8e55a84c14bb324761328b8b08d8ebf2493b09277c5bdac

      SHA512

      4b6a04ae6a1698c56a3762218cabca55cf6bcf35b96fbca7c5bc5289dc8d116b47f639bceed14d621f9169585115576d75014177eb47bb6d0f509e89b2eed38c

    • \Users\Admin\AppData\Roaming\bankgy896523.exe

      Filesize

      720KB

      MD5

      1143a49474a9e04635652039747cdde4

      SHA1

      d80ed0fbec15c3bab2ceae8e3f4295e89bed3fef

      SHA256

      d2bb93bd846b91bdd8e55a84c14bb324761328b8b08d8ebf2493b09277c5bdac

      SHA512

      4b6a04ae6a1698c56a3762218cabca55cf6bcf35b96fbca7c5bc5289dc8d116b47f639bceed14d621f9169585115576d75014177eb47bb6d0f509e89b2eed38c

    • memory/748-57-0x000000007112D000-0x0000000071138000-memory.dmp

      Filesize

      44KB

    • memory/748-58-0x0000000074FB1000-0x0000000074FB3000-memory.dmp

      Filesize

      8KB

    • memory/748-60-0x000000007112D000-0x0000000071138000-memory.dmp

      Filesize

      44KB

    • memory/748-54-0x00000000726C1000-0x00000000726C4000-memory.dmp

      Filesize

      12KB

    • memory/748-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/748-55-0x0000000070141000-0x0000000070143000-memory.dmp

      Filesize

      8KB

    • memory/816-69-0x000007FEFBD71000-0x000007FEFBD73000-memory.dmp

      Filesize

      8KB

    • memory/1152-66-0x0000000001140000-0x00000000011FA000-memory.dmp

      Filesize

      744KB

    • memory/1152-70-0x0000000000410000-0x0000000000428000-memory.dmp

      Filesize

      96KB