Overview

overview

10

Static

static

payment re...df.exe

windows7_x64

10

payment re...df.exe

windows10_x64

10

Analysis

  • max time kernel
    150s
  • max time network
    145s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    15/04/2021, 17:54

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General

  • Target
    payment recipt pdf.exe
  • Size 769KB
  • Sample210415-rr32dazhss
  • SHA256 02b07b8086d052cca5b1f10089f93da604dfdf71d09f0370750f371e50bb0221
  • MD5 SHA1 SHA512
Score
10/10
formbookratspywarestealertrojan

Malware Config

Extracted

Family

  • formbook

Version

  • 4.1

C2

  • http://w����5 �@q[*��S=���m

Signatures

  • Formbook

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

    trojanspywarestealerformbook
  • Formbook Payload 3 IoCs
    rat
  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistence
  • Suspicious behavior: EnumeratesProcesses 24 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:8
    • C:\Users\Admin\AppData\Local\Temp\payment recipt pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\payment recipt pdf.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:852
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\rgQKNONswyGjT" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2A0A.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:3752
      • C:\Users\Admin\AppData\Local\Temp\payment recipt pdf.exe
        "C:\Users\Admin\AppData\Local\Temp\payment recipt pdf.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:4024
    • C:\Windows\SysWOW64\svchost.exe
      "C:\Windows\SysWOW64\svchost.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1492
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Admin\AppData\Local\Temp\payment recipt pdf.exe"
        3⤵
          PID:2172

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          memory/8-129-0x00000000066E0000-0x000000000685E000-memory.dmp
          Download

          memory/8-122-0x0000000005CD0000-0x0000000005E45000-memory.dmp
          Download

          memory/852-114-0x0000000002A50000-0x0000000002A51000-memory.dmp
          Download

          memory/1492-126-0x0000000000880000-0x00000000008AE000-memory.dmp
          Download

          memory/1492-128-0x00000000035E0000-0x0000000003673000-memory.dmp
          Download

          memory/1492-127-0x0000000003220000-0x0000000003540000-memory.dmp
          Download

          memory/1492-125-0x0000000000A90000-0x0000000000A9C000-memory.dmp
          Download

          memory/4024-117-0x0000000000400000-0x000000000042E000-memory.dmp
          Download

          memory/4024-121-0x0000000001850000-0x0000000001864000-memory.dmp
          Download

          memory/4024-120-0x0000000001890000-0x0000000001BB0000-memory.dmp
          Download