Resubmissions

26-10-2021 17:29

211026-v2vqhsaac9 10

26-10-2021 17:18

211026-vvfm1saab6 6

Analysis

  • max time kernel
    122s
  • max time network
    614s
  • platform
    windows10_x64
  • resource
    win10-en-20210920
  • submitted
    26-10-2021 17:29

General

  • Target

    E7pPa8kXU2X9H8nyCZseBfpdf.bin.exe

  • Size

    668KB

  • MD5

    e168c49cc388f05d310f780f70661c47

  • SHA1

    1837a8448300159ba08992c39386354b676674e4

  • SHA256

    c1fe976f336cf05401da21ffab8632a0511bbf8743c2e3ff4220c3e9bbf56dbb

  • SHA512

    e4dee911649ef54eb23060846570dcd8371f3e6c05fddfcbf9bb1b5966864a795a7bc36bc6d06bdf8e077f79e763c6a324d8a19666cfb87cd23ce0ff71c4ccc7

Malware Config

Extracted

Family

blustealer

Credentials

  • Protocol:
    smtp
  • Host:
    budgetn.shop
  • Port:
    587
  • Username:
    hulu@budgetn.shop
  • Password:
    s)Z4bO(8nKHT

Signatures

  • BluStealer

    A Modular information stealer written in Visual Basic.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\E7pPa8kXU2X9H8nyCZseBfpdf.bin.exe
    "C:\Users\Admin\AppData\Local\Temp\E7pPa8kXU2X9H8nyCZseBfpdf.bin.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1992
    • C:\Users\Admin\AppData\Local\Temp\E7pPa8kXU2X9H8nyCZseBfpdf.bin.exe
      C:\Users\Admin\AppData\Local\Temp\E7pPa8kXU2X9H8nyCZseBfpdf.bin.exe
      2⤵
        PID:2228
      • C:\Users\Admin\AppData\Local\Temp\E7pPa8kXU2X9H8nyCZseBfpdf.bin.exe
        C:\Users\Admin\AppData\Local\Temp\E7pPa8kXU2X9H8nyCZseBfpdf.bin.exe
        2⤵
          PID:4560
        • C:\Users\Admin\AppData\Local\Temp\E7pPa8kXU2X9H8nyCZseBfpdf.bin.exe
          C:\Users\Admin\AppData\Local\Temp\E7pPa8kXU2X9H8nyCZseBfpdf.bin.exe
          2⤵
            PID:4404
          • C:\Users\Admin\AppData\Local\Temp\E7pPa8kXU2X9H8nyCZseBfpdf.bin.exe
            C:\Users\Admin\AppData\Local\Temp\E7pPa8kXU2X9H8nyCZseBfpdf.bin.exe
            2⤵
            • Suspicious use of SetWindowsHookEx
            PID:4260

        Network

        MITRE ATT&CK Matrix ATT&CK v6

        Persistence

        Registry Run Keys / Startup Folder

        1
        T1060

        Defense Evasion

        Modify Registry

        1
        T1112

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/1992-115-0x0000000000530000-0x0000000000531000-memory.dmp
          Filesize

          4KB

        • memory/1992-117-0x00000000027C0000-0x00000000027C2000-memory.dmp
          Filesize

          8KB

        • memory/1992-118-0x0000000004F50000-0x0000000004FE4000-memory.dmp
          Filesize

          592KB

        • memory/1992-119-0x0000000005090000-0x0000000005091000-memory.dmp
          Filesize

          4KB

        • memory/1992-120-0x0000000004F40000-0x0000000004F41000-memory.dmp
          Filesize

          4KB

        • memory/1992-121-0x0000000005840000-0x0000000005841000-memory.dmp
          Filesize

          4KB

        • memory/1992-122-0x0000000005380000-0x00000000053E0000-memory.dmp
          Filesize

          384KB

        • memory/4260-123-0x0000000000400000-0x000000000046A000-memory.dmp
          Filesize

          424KB

        • memory/4260-124-0x00000000004027A0-mapping.dmp
        • memory/4260-125-0x0000000000F50000-0x0000000000F56000-memory.dmp
          Filesize

          24KB

        • memory/4260-126-0x0000000000F50000-0x0000000000F5A000-memory.dmp
          Filesize

          40KB