Analysis

  • max time kernel
    148s
  • max time network
    133s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14/02/2024, 21:57

General

  • Target
    1988-101-0x0000000000400000-0x0000000001400000-memory.exe
  • Size 16.0MB
  • Sample240214-1tyebsbe2v
  • SHA256 27ecefbb17afd34e9595b7ce830c80b251daade80f8aa1b6136d326e40992fb0
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • NirSoft MailPassView 2 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 2 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 7 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1988-101-0x0000000000400000-0x0000000001400000-memory.exe
    "C:\Users\Admin\AppData\Local\Temp\1988-101-0x0000000000400000-0x0000000001400000-memory.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:400
    • C:\Users\Admin\AppData\Local\Temp\1988-101-0x0000000000400000-0x0000000001400000-memory.exe
      C:\Users\Admin\AppData\Local\Temp\1988-101-0x0000000000400000-0x0000000001400000-memory.exe /stext "C:\Users\Admin\AppData\Local\Temp\bcbazgabgyuxngtyllgmcfdtjdnnclpwm"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:4980
    • C:\Users\Admin\AppData\Local\Temp\1988-101-0x0000000000400000-0x0000000001400000-memory.exe
      C:\Users\Admin\AppData\Local\Temp\1988-101-0x0000000000400000-0x0000000001400000-memory.exe /stext "C:\Users\Admin\AppData\Local\Temp\mwgta"
      2⤵
      • Accesses Microsoft Outlook accounts
      PID:4756
    • C:\Users\Admin\AppData\Local\Temp\1988-101-0x0000000000400000-0x0000000001400000-memory.exe
      C:\Users\Admin\AppData\Local\Temp\1988-101-0x0000000000400000-0x0000000001400000-memory.exe /stext "C:\Users\Admin\AppData\Local\Temp\oqlmarwx"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2536

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        logs.dat

        • Path C:\ProgramData\remcos\logs.dat
        • Size 144B
        • SHA256 4bb9c74c72b16b7eaf602f7f9e003f73116c73182336ce77afe31c32b79e3a41
        • MD5 SHA1 SHA512

        bcbazgabgyuxngtyllgmcfdtjdnnclpwm

        • Path C:\Users\Admin\AppData\Local\Temp\bcbazgabgyuxngtyllgmcfdtjdnnclpwm
        • Size 4KB
        • SHA256 98e7ebb0441c43ba079892f7fd1e9c1360d9d0e6d37575e452944fa0b08638d4
        • MD5 SHA1 SHA512 SSDEEP

        memory/400-39-0x0000000010000000-0x0000000010019000-memory.dmp

        memory/400-33-0x0000000010000000-0x0000000010019000-memory.dmp

        memory/400-32-0x0000000010000000-0x0000000010019000-memory.dmp

        memory/400-30-0x0000000010000000-0x0000000010019000-memory.dmp

        memory/400-31-0x0000000010000000-0x0000000010019000-memory.dmp

        memory/400-27-0x0000000010000000-0x0000000010019000-memory.dmp

        memory/2536-11-0x0000000000400000-0x0000000000424000-memory.dmp

        memory/2536-22-0x0000000000400000-0x0000000000424000-memory.dmp

        memory/2536-19-0x0000000000400000-0x0000000000424000-memory.dmp

        memory/2536-13-0x0000000000400000-0x0000000000424000-memory.dmp

        memory/2536-4-0x0000000000400000-0x0000000000424000-memory.dmp

        memory/4756-18-0x0000000000400000-0x0000000000457000-memory.dmp

        memory/4756-9-0x0000000000400000-0x0000000000457000-memory.dmp

        memory/4756-6-0x0000000000400000-0x0000000000457000-memory.dmp

        memory/4756-2-0x0000000000400000-0x0000000000457000-memory.dmp

        memory/4980-24-0x0000000000400000-0x0000000000478000-memory.dmp

        memory/4980-12-0x0000000000400000-0x0000000000478000-memory.dmp

        memory/4980-1-0x0000000000400000-0x0000000000478000-memory.dmp

        memory/4980-8-0x0000000000400000-0x0000000000478000-memory.dmp