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Analysis

  • max time kernel
    142s
  • max time network
    77s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    07/09/2022, 15:12

General

  • Target

    doc070902248304840384739-11983769230.exe

  • Size

    1.0MB

  • MD5

    82a1be67742da347df519c0c0b75ed87

  • SHA1

    163e5d1758c7be66a6a3a35d2f9973d209383567

  • SHA256

    02a1835ea805bb1a6ca8d1706fa5a811279ec3fcb1524eb83cfa60f0314cf0dd

  • SHA512

    d2051aa0284e0ab9151417d05eafc037695c32d6bf67512b2c8155ecc303774bdc950c24a658fb88787c4f1c3f6ae8bb0bba2017d90129afcbf484f40baaa4a7

  • SSDEEP

    12288:I5bIINzS9JAJgapke+yoaYRy6Wrq2vElGv9W:qbNzoJ0gakNy9cjWm2UGv

Malware Config

Signatures

  • BluStealer

    A Modular information stealer written in Visual Basic.

  • StormKitty

    StormKitty is an open source info stealer written in C#.

  • StormKitty payload 4 IoCs
  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\doc070902248304840384739-11983769230.exe
    "C:\Users\Admin\AppData\Local\Temp\doc070902248304840384739-11983769230.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1972
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\fjuIjtcpvLma.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1764
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\fjuIjtcpvLma" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD818.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1396
    • C:\Users\Admin\AppData\Local\Temp\doc070902248304840384739-11983769230.exe
      "C:\Users\Admin\AppData\Local\Temp\doc070902248304840384739-11983769230.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1784
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
        C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
        3⤵
        • Accesses Microsoft Outlook profiles
        • Checks processor information in registry
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:860

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpD818.tmp

    Filesize

    1KB

    MD5

    0d69b519de6730983e7a2ffe468b5aba

    SHA1

    8b815a2abc4a0accbc494df71e7c4e7ecafb677c

    SHA256

    cd6ef0c744b9db3ed48251b484b4e211d0f541d5de8529d942c9e44992d98c66

    SHA512

    fc3b3b971f09f66fc43ef55458ca55effc36df94f67f101b0548f4b25f9d006bb8e1134c135eced45e23bed4a9a33cc70fa9bacacbc587c4765be207d54cafc2

  • memory/860-83-0x0000000000090000-0x00000000000AA000-memory.dmp

    Filesize

    104KB

  • memory/860-81-0x0000000000090000-0x00000000000AA000-memory.dmp

    Filesize

    104KB

  • memory/860-76-0x0000000000090000-0x00000000000AA000-memory.dmp

    Filesize

    104KB

  • memory/860-78-0x0000000000090000-0x00000000000AA000-memory.dmp

    Filesize

    104KB

  • memory/1764-87-0x000000006E6F0000-0x000000006EC9B000-memory.dmp

    Filesize

    5.7MB

  • memory/1764-85-0x000000006E6F0000-0x000000006EC9B000-memory.dmp

    Filesize

    5.7MB

  • memory/1784-67-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/1784-64-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/1784-69-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/1784-72-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/1784-65-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/1784-88-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/1784-86-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/1972-56-0x00000000006D0000-0x00000000006EA000-memory.dmp

    Filesize

    104KB

  • memory/1972-55-0x0000000075501000-0x0000000075503000-memory.dmp

    Filesize

    8KB

  • memory/1972-54-0x0000000000860000-0x000000000096E000-memory.dmp

    Filesize

    1.1MB

  • memory/1972-57-0x0000000000740000-0x000000000074C000-memory.dmp

    Filesize

    48KB

  • memory/1972-63-0x0000000005050000-0x000000000507A000-memory.dmp

    Filesize

    168KB

  • memory/1972-58-0x0000000005D60000-0x0000000005DE2000-memory.dmp

    Filesize

    520KB