Analysis

  • max time kernel
    149s
  • max time network
    144s
  • platform
    windows10_x64
  • resource
    win10v200722
  • submitted
    01-08-2020 19:33

General

  • Target

    SecuriteInfo.com.Trojan.Siggen9.58380.16060.15702.exe

  • Size

    405KB

  • MD5

    421b08e81a183c1d7337128cba971fa2

  • SHA1

    291bab40915a7c2d7277f3f1944e54a3c236eef2

  • SHA256

    cf5d63823cb7e280e555b94cba5aa1a5e8c0eb3c738f7e620dc2a923532f98de

  • SHA512

    97bbe1cd8793b82ac2b24cd73a959ee1be86b2491d5552dd264c4e0270fd1e2d34adfe4afe2b234c577ca179c7812548978357184abc84a2bf0966e50e907b5c

Malware Config

Signatures

  • Drops file in Program Files directory 1 IoCs
  • Adds policy Run key to start application 2 TTPs 2 IoCs
  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Formbook

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

  • Suspicious behavior: MapViewOfSection 9 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 263 IoCs
  • Formbook Payload 4 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs
  • Suspicious use of AdjustPrivilegeToken 13 IoCs
  • System policy modification 1 TTPs 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious use of WriteProcessMemory
    • Suspicious use of AdjustPrivilegeToken
    PID:3032
    • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.Siggen9.58380.16060.15702.exe
      "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.Siggen9.58380.16060.15702.exe"
      2⤵
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      • Suspicious use of AdjustPrivilegeToken
      PID:496
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
        3⤵
          PID:712
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
          3⤵
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of SetThreadContext
          • Suspicious use of AdjustPrivilegeToken
          PID:796
      • C:\Windows\SysWOW64\msdt.exe
        "C:\Windows\SysWOW64\msdt.exe"
        2⤵
        • Drops file in Program Files directory
        • Adds policy Run key to start application
        • Modifies Internet Explorer settings
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        • Suspicious use of AdjustPrivilegeToken
        • System policy modification
        PID:992
        • C:\Windows\SysWOW64\cmd.exe
          /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
          3⤵
            PID:1036
          • C:\Windows\SysWOW64\cmd.exe
            /c copy "C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V
            3⤵
              PID:4036
            • C:\Program Files\Mozilla Firefox\Firefox.exe
              "C:\Program Files\Mozilla Firefox\Firefox.exe"
              3⤵
                PID:488

          Network

          MITRE ATT&CK Matrix ATT&CK v6

          Persistence

          Registry Run Keys / Startup Folder

          1
          T1060

          Defense Evasion

          Modify Registry

          3
          T1112

          Credential Access

          Credentials in Files

          1
          T1081

          Collection

          Data from Local System

          1
          T1005

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\DB1
          • C:\Users\Admin\AppData\Roaming\JN004T3S\JN0logim.jpeg
          • C:\Users\Admin\AppData\Roaming\JN004T3S\JN0logrf.ini
          • C:\Users\Admin\AppData\Roaming\JN004T3S\JN0logrg.ini
          • C:\Users\Admin\AppData\Roaming\JN004T3S\JN0logri.ini
          • C:\Users\Admin\AppData\Roaming\JN004T3S\JN0logrv.ini
          • memory/488-14-0x00007FF61EFF0000-0x00007FF61F083000-memory.dmp
            Filesize

            588KB

          • memory/488-11-0x0000000000000000-mapping.dmp
          • memory/488-12-0x00007FF61EFF0000-0x00007FF61F083000-memory.dmp
            Filesize

            588KB

          • memory/488-13-0x00007FF61EFF0000-0x00007FF61F083000-memory.dmp
            Filesize

            588KB

          • memory/796-0-0x0000000000400000-0x000000000042D000-memory.dmp
            Filesize

            180KB

          • memory/796-1-0x000000000041E2F0-mapping.dmp
          • memory/992-6-0x0000000004510000-0x0000000004675000-memory.dmp
            Filesize

            1.4MB

          • memory/992-4-0x0000000000990000-0x0000000000B03000-memory.dmp
            Filesize

            1.4MB

          • memory/992-3-0x0000000000990000-0x0000000000B03000-memory.dmp
            Filesize

            1.4MB

          • memory/992-2-0x0000000000000000-mapping.dmp
          • memory/1036-5-0x0000000000000000-mapping.dmp
          • memory/4036-8-0x0000000000000000-mapping.dmp