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Analysis

  • max time kernel
    149s
  • max time network
    142s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    21/05/2024, 01:15

General

  • Target

    DELAY NOTICE - HUMPERT-WH (SO.5649) 521.PDF.scr.exe

  • Size

    996KB

  • MD5

    3112375e035766a604350754d20460dd

  • SHA1

    6f8377e4b95fd9f5af3921616410b2c986dfb8ba

  • SHA256

    866de3bdc1cc207c818212511641cdf5e6220f304619a26b5e9cb2d2b9c8a309

  • SHA512

    6a7186b4b76575a51374fadd1120163e47d0bb21d8dfc000893f91a57e7f3487f68338de651bb21a78cd8ef6e5581c2d6b2d7c5c7b0f188071a8f1f70d0b1258

  • SSDEEP

    24576:wn698VVYl6Jic3uH34B+HH5U3F7+IYz8pLjG0:H9SBx3uX4Q5U3pnYO/G0

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

104.250.180.178:7902

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    Microsoft .exe

  • copy_folder

    Microsoft

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    false

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Microsoft -QUCX7D

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Remcos

    Remcos is a closed-source remote control and surveillance software.

  • NirSoft MailPassView 3 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 3 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 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 32 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\DELAY NOTICE - HUMPERT-WH (SO.5649) 521.PDF.scr.exe
    "C:\Users\Admin\AppData\Local\Temp\DELAY NOTICE - HUMPERT-WH (SO.5649) 521.PDF.scr.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2360
    • C:\Users\Admin\AppData\Local\Temp\DELAY NOTICE - HUMPERT-WH (SO.5649) 521.PDF.scr.exe
      "C:\Users\Admin\AppData\Local\Temp\DELAY NOTICE - HUMPERT-WH (SO.5649) 521.PDF.scr.exe"
      2⤵
        PID:2996
      • C:\Users\Admin\AppData\Local\Temp\DELAY NOTICE - HUMPERT-WH (SO.5649) 521.PDF.scr.exe
        "C:\Users\Admin\AppData\Local\Temp\DELAY NOTICE - HUMPERT-WH (SO.5649) 521.PDF.scr.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:2540
        • C:\Users\Admin\AppData\Local\Temp\DELAY NOTICE - HUMPERT-WH (SO.5649) 521.PDF.scr.exe
          "C:\Users\Admin\AppData\Local\Temp\DELAY NOTICE - HUMPERT-WH (SO.5649) 521.PDF.scr.exe" /stext "C:\Users\Admin\AppData\Local\Temp\msncswffzlscho"
          3⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:2480
        • C:\Users\Admin\AppData\Local\Temp\DELAY NOTICE - HUMPERT-WH (SO.5649) 521.PDF.scr.exe
          "C:\Users\Admin\AppData\Local\Temp\DELAY NOTICE - HUMPERT-WH (SO.5649) 521.PDF.scr.exe" /stext "C:\Users\Admin\AppData\Local\Temp\pmantoqhvtkpjurfa"
          3⤵
          • Accesses Microsoft Outlook accounts
          PID:2568
        • C:\Users\Admin\AppData\Local\Temp\DELAY NOTICE - HUMPERT-WH (SO.5649) 521.PDF.scr.exe
          "C:\Users\Admin\AppData\Local\Temp\DELAY NOTICE - HUMPERT-WH (SO.5649) 521.PDF.scr.exe" /stext "C:\Users\Admin\AppData\Local\Temp\zgfguhbajbcutanjjavxu"
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:2740

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\msncswffzlscho

      Filesize

      2B

      MD5

      f3b25701fe362ec84616a93a45ce9998

      SHA1

      d62636d8caec13f04e28442a0a6fa1afeb024bbb

      SHA256

      b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

      SHA512

      98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

    • memory/2360-6-0x0000000005BC0000-0x0000000005C80000-memory.dmp

      Filesize

      768KB

    • memory/2360-2-0x0000000074AA0000-0x000000007518E000-memory.dmp

      Filesize

      6.9MB

    • memory/2360-3-0x00000000002E0000-0x0000000000302000-memory.dmp

      Filesize

      136KB

    • memory/2360-4-0x00000000002A0000-0x00000000002AC000-memory.dmp

      Filesize

      48KB

    • memory/2360-5-0x0000000000300000-0x0000000000310000-memory.dmp

      Filesize

      64KB

    • memory/2360-18-0x0000000074AA0000-0x000000007518E000-memory.dmp

      Filesize

      6.9MB

    • memory/2360-0-0x0000000074AAE000-0x0000000074AAF000-memory.dmp

      Filesize

      4KB

    • memory/2360-1-0x0000000001040000-0x000000000113C000-memory.dmp

      Filesize

      1008KB

    • memory/2480-52-0x0000000000400000-0x0000000000478000-memory.dmp

      Filesize

      480KB

    • memory/2480-33-0x0000000000400000-0x0000000000478000-memory.dmp

      Filesize

      480KB

    • memory/2480-34-0x0000000000400000-0x0000000000478000-memory.dmp

      Filesize

      480KB

    • memory/2480-44-0x0000000000400000-0x0000000000478000-memory.dmp

      Filesize

      480KB

    • memory/2480-40-0x0000000000400000-0x0000000000478000-memory.dmp

      Filesize

      480KB

    • memory/2540-59-0x0000000010000000-0x0000000010019000-memory.dmp

      Filesize

      100KB

    • memory/2540-12-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2540-8-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2540-9-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2540-20-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2540-22-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2540-21-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2540-23-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2540-24-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2540-25-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2540-26-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2540-27-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2540-29-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2540-71-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2540-70-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2540-10-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2540-69-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2540-11-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2540-68-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2540-67-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2540-66-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2540-7-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2540-13-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2540-65-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2540-64-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2540-14-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2540-15-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2540-63-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2540-55-0x0000000010000000-0x0000000010019000-memory.dmp

      Filesize

      100KB

    • memory/2540-17-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2540-58-0x0000000010000000-0x0000000010019000-memory.dmp

      Filesize

      100KB

    • memory/2540-60-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2540-61-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2540-62-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2568-54-0x0000000000400000-0x0000000000462000-memory.dmp

      Filesize

      392KB

    • memory/2568-39-0x0000000000400000-0x0000000000462000-memory.dmp

      Filesize

      392KB

    • memory/2568-43-0x0000000000400000-0x0000000000462000-memory.dmp

      Filesize

      392KB

    • memory/2568-45-0x0000000000400000-0x0000000000462000-memory.dmp

      Filesize

      392KB

    • memory/2568-37-0x0000000000400000-0x0000000000462000-memory.dmp

      Filesize

      392KB

    • memory/2568-35-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2740-47-0x0000000000400000-0x0000000000424000-memory.dmp

      Filesize

      144KB

    • memory/2740-46-0x0000000000400000-0x0000000000424000-memory.dmp

      Filesize

      144KB

    • memory/2740-42-0x0000000000400000-0x0000000000424000-memory.dmp

      Filesize

      144KB