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Analysis

  • max time kernel
    149s
  • max time network
    125s
  • platform
    windows10_x64
  • resource
    win10-en-20211014
  • submitted
    10/11/2021, 11:11

General

  • Target

    ziraat bankasi swift mesaji.exe

  • Size

    603KB

  • MD5

    67fa45924a8d2a4b751ef46d5c636d63

  • SHA1

    7baed7557107d377431e868edbce12c4df8262d6

  • SHA256

    3049f3aa728a2c0f15dea40eb8d46c44ab1618cb8f2a1bb739cc6760aea303f5

  • SHA512

    959d090f33848fd84d9fab32cc40b81d0a12b16c3c11ef41cf08dd6029340520d81b010f82e1177d13ff43669908d4ce832831fedfc04457c47de7804addeef4

Malware Config

Extracted

Family

blustealer

Credentials

  • Protocol:
    smtp
  • Host:
    mail.yekamuhendislik.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    MuhasebE123*

Signatures

  • A310logger

    A310 Logger is a .NET stealer/logger targeting passwords from browsers and email clients.

  • BluStealer

    A Modular information stealer written in Visual Basic.

  • A310logger Executable 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Reads local data of messenger clients 2 TTPs

    Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 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.

  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ziraat bankasi swift mesaji.exe
    "C:\Users\Admin\AppData\Local\Temp\ziraat bankasi swift mesaji.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2696
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\tFqrzHcqoZfacZ.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2280
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\tFqrzHcqoZfacZ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9C6B.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:748
    • C:\Users\Admin\AppData\Local\Temp\ziraat bankasi swift mesaji.exe
      "C:\Users\Admin\AppData\Local\Temp\ziraat bankasi swift mesaji.exe"
      2⤵
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1784
      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\NET4\Fox.exe
        C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\NET4\Fox.exe
        3⤵
        • Executes dropped EXE
        • Accesses Microsoft Outlook profiles
        • outlook_office_path
        • outlook_win_path
        PID:3672
      • C:\Program Files (x86)\Windows Mail\WinMail.exe
        "C:\Program Files (x86)\Windows Mail\WinMail" OCInstallUserConfigOE
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1368
        • C:\Program Files\Windows Mail\WinMail.exe
          "C:\Program Files\Windows Mail\WinMail" OCInstallUserConfigOE
          4⤵
            PID:1340

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1784-134-0x0000000000DB0000-0x0000000000DBA000-memory.dmp

      Filesize

      40KB

    • memory/1784-133-0x0000000000DB0000-0x0000000000DB6000-memory.dmp

      Filesize

      24KB

    • memory/1784-130-0x0000000000400000-0x0000000000456000-memory.dmp

      Filesize

      344KB

    • memory/2280-136-0x0000000007302000-0x0000000007303000-memory.dmp

      Filesize

      4KB

    • memory/2280-142-0x00000000088B0000-0x00000000088B1000-memory.dmp

      Filesize

      4KB

    • memory/2280-129-0x0000000004D30000-0x0000000004D31000-memory.dmp

      Filesize

      4KB

    • memory/2280-126-0x0000000004C00000-0x0000000004C01000-memory.dmp

      Filesize

      4KB

    • memory/2280-132-0x0000000007940000-0x0000000007941000-memory.dmp

      Filesize

      4KB

    • memory/2280-241-0x0000000007303000-0x0000000007304000-memory.dmp

      Filesize

      4KB

    • memory/2280-171-0x0000000009B10000-0x0000000009B11000-memory.dmp

      Filesize

      4KB

    • memory/2280-135-0x0000000007300000-0x0000000007301000-memory.dmp

      Filesize

      4KB

    • memory/2280-170-0x000000007F230000-0x000000007F231000-memory.dmp

      Filesize

      4KB

    • memory/2280-137-0x0000000007590000-0x0000000007591000-memory.dmp

      Filesize

      4KB

    • memory/2280-138-0x0000000007830000-0x0000000007831000-memory.dmp

      Filesize

      4KB

    • memory/2280-139-0x00000000078A0000-0x00000000078A1000-memory.dmp

      Filesize

      4KB

    • memory/2280-140-0x0000000008150000-0x0000000008151000-memory.dmp

      Filesize

      4KB

    • memory/2280-141-0x0000000007FD0000-0x0000000007FD1000-memory.dmp

      Filesize

      4KB

    • memory/2280-127-0x0000000004C00000-0x0000000004C01000-memory.dmp

      Filesize

      4KB

    • memory/2280-169-0x0000000009940000-0x0000000009941000-memory.dmp

      Filesize

      4KB

    • memory/2280-164-0x00000000097F0000-0x00000000097F1000-memory.dmp

      Filesize

      4KB

    • memory/2280-157-0x0000000009810000-0x0000000009843000-memory.dmp

      Filesize

      204KB

    • memory/2280-149-0x0000000004C00000-0x0000000004C01000-memory.dmp

      Filesize

      4KB

    • memory/2280-148-0x00000000087B0000-0x00000000087B1000-memory.dmp

      Filesize

      4KB

    • memory/2696-120-0x0000000005000000-0x0000000005001000-memory.dmp

      Filesize

      4KB

    • memory/2696-121-0x0000000008540000-0x0000000008547000-memory.dmp

      Filesize

      28KB

    • memory/2696-115-0x00000000005F0000-0x00000000005F1000-memory.dmp

      Filesize

      4KB

    • memory/2696-122-0x0000000008880000-0x0000000008881000-memory.dmp

      Filesize

      4KB

    • memory/2696-119-0x0000000004FA0000-0x000000000549E000-memory.dmp

      Filesize

      5.0MB

    • memory/2696-123-0x0000000008A20000-0x0000000008A93000-memory.dmp

      Filesize

      460KB

    • memory/2696-118-0x0000000005040000-0x0000000005041000-memory.dmp

      Filesize

      4KB

    • memory/2696-117-0x00000000054A0000-0x00000000054A1000-memory.dmp

      Filesize

      4KB

    • memory/3672-146-0x00000000009F0000-0x00000000009F1000-memory.dmp

      Filesize

      4KB

    • memory/3672-151-0x00000000011D0000-0x00000000011D2000-memory.dmp

      Filesize

      8KB