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Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/11/2022, 03:39

General

  • Target

    file.exe

  • Size

    73KB

  • MD5

    9f3d2f161ab12215d8127143188fadc6

  • SHA1

    2fa3f6914fe95ebd19d6395fed3296dee351ec56

  • SHA256

    42ff33d8a2c198145c876fbfab4855fa43faaf292d10c73f144619c34714f97e

  • SHA512

    b2cad85987c0b431323396a68a609422a7665033f25f43fb7e2430b192eafe00d375ce8b518385b962d0b4601ac170184096f5b5015e536c5cf0419fa22c5d61

  • SSDEEP

    1536:4WmCpPvpguzG3Uj/mvaVaDLGnsyjLixPd:4W3PLzUSmvaVaDLGnsyPA

Malware Config

Extracted

Family

formbook

Campaign

tu7g

Decoy

fbbktzFKN8MB1h8=

FPidEXGfkl0WqgXoVhHehw==

iHEjIL7XwJdpN6Er4Evhu03o

fHQTMsjqD3cPpQ==

VDXmCsr22oYhshz/Fg305nF21Q==

j4ZHfk5rRf6tVtwbMRU=

AORqAXKWy4R+//VwFdB6VVk=

9PW0Yw9RkIfer5+/bum7nlxwy1QfDQ==

ZU8mUjRgSOn3d0eFD3puQgVpnaAj

nlHgT2aJaMMB1h8=

+qc6XcgwdjVsEgKQ2zT+

/gCHJbBZrWjx1OZN40Hhu03o

48dX+WeLWAjFZMR2lItP8bJ87X4=

+N6H9VVzix7uogI=

Jf/NAPQe+8we7uftVhHehw==

YmANk8T+ix7uogI=

GTKxpLAYsJTl

pT8FM/QacYAV/+VInxn0

8JAnF9PnyZA29xH3Iw==

8ZdFPhCvGxYBxRCTqtB6VVk=

Signatures

  • Formbook

    Formbook is a data stealing malware which is capable of stealing data.

  • Blocklisted process makes network request 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Suspicious use of SetThreadContext 4 IoCs
  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of WriteProcessMemory
    PID:2724
    • C:\Users\Admin\AppData\Local\Temp\file.exe
      "C:\Users\Admin\AppData\Local\Temp\file.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4308
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe"
        3⤵
          PID:980
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe"
          3⤵
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of AdjustPrivilegeToken
          PID:820
      • C:\Windows\SysWOW64\cscript.exe
        "C:\Windows\SysWOW64\cscript.exe"
        2⤵
        • Blocklisted process makes network request
        • Suspicious use of SetThreadContext
        • Modifies Internet Explorer settings
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1952
        • C:\Program Files\Mozilla Firefox\Firefox.exe
          "C:\Program Files\Mozilla Firefox\Firefox.exe"
          3⤵
            PID:1920

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/820-144-0x00000000019E0000-0x00000000019F0000-memory.dmp

        Filesize

        64KB

      • memory/820-147-0x0000000000400000-0x000000000042F000-memory.dmp

        Filesize

        188KB

      • memory/820-135-0x0000000000400000-0x000000000042F000-memory.dmp

        Filesize

        188KB

      • memory/820-137-0x0000000000400000-0x000000000042F000-memory.dmp

        Filesize

        188KB

      • memory/820-138-0x0000000000400000-0x000000000042F000-memory.dmp

        Filesize

        188KB

      • memory/820-139-0x0000000000401000-0x000000000042F000-memory.dmp

        Filesize

        184KB

      • memory/820-140-0x0000000001A80000-0x0000000001DCA000-memory.dmp

        Filesize

        3.3MB

      • memory/820-141-0x0000000001980000-0x0000000001990000-memory.dmp

        Filesize

        64KB

      • memory/820-148-0x0000000000401000-0x000000000042F000-memory.dmp

        Filesize

        184KB

      • memory/1952-149-0x0000000000480000-0x00000000004A7000-memory.dmp

        Filesize

        156KB

      • memory/1952-150-0x0000000001180000-0x00000000011AD000-memory.dmp

        Filesize

        180KB

      • memory/1952-151-0x0000000003220000-0x000000000356A000-memory.dmp

        Filesize

        3.3MB

      • memory/1952-152-0x0000000003050000-0x00000000030DF000-memory.dmp

        Filesize

        572KB

      • memory/1952-154-0x0000000001180000-0x00000000011AD000-memory.dmp

        Filesize

        180KB

      • memory/2724-142-0x0000000002840000-0x0000000002943000-memory.dmp

        Filesize

        1.0MB

      • memory/2724-145-0x0000000008580000-0x0000000008709000-memory.dmp

        Filesize

        1.5MB

      • memory/2724-153-0x0000000002BB0000-0x0000000002C59000-memory.dmp

        Filesize

        676KB

      • memory/2724-155-0x0000000002BB0000-0x0000000002C59000-memory.dmp

        Filesize

        676KB

      • memory/4308-132-0x0000000000890000-0x00000000008A6000-memory.dmp

        Filesize

        88KB