Analysis

  • max time kernel
    297s
  • max time network
    296s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    14-11-2024 02:00

General

  • Target

    QUOTATION #46789RFQ_SUPLM_NOV24_SALEH_CONSTRUCTIONS_LLC_PDF.exe

  • Size

    1.3MB

  • MD5

    5c44a72a49fe4fbc94f1c1aa8cbf0ab6

  • SHA1

    d0d0903f73b4aa11ee580fb6fd8d80775e6e88de

  • SHA256

    39fe045b17ab2fcdb512758a431845409c29ca9341090ac81878658423c39129

  • SHA512

    d92503e2ebbaa4e8728098cf6d0079de711a4f92663ad9db8583d848721818e4ecf3790a65253a0cd850c23eed8a46f98049a11f77b9f106344e501d124fbb97

  • SSDEEP

    24576:ctcKivRdWnSyEHyfE75BP/+mgWdm/bTLLK6:LKmXWSy6r2mgxv

Malware Config

Extracted

Family

remcos

Botnet

SLAVES

C2

windowslavesclient.duckdns.org:1604

Attributes
  • audio_folder

    MicRecords

  • audio_path

    ApplicationPath

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    remcos.exe

  • copy_folder

    Remcos

  • 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

    Rmc-J3MJAP

  • 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.

  • Remcos family
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 12 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 5 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Runs ping.exe 1 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 11 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 54 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\QUOTATION #46789RFQ_SUPLM_NOV24_SALEH_CONSTRUCTIONS_LLC_PDF.exe
    "C:\Users\Admin\AppData\Local\Temp\QUOTATION #46789RFQ_SUPLM_NOV24_SALEH_CONSTRUCTIONS_LLC_PDF.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2384
    • C:\Windows\SysWOW64\cmd.exe
      "cmd" /c ping 127.0.0.1 -n 19 > nul && REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "Videoss" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Images.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:2312
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 19
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:2332
      • C:\Windows\SysWOW64\reg.exe
        REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "Videoss" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Images.exe"
        3⤵
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        PID:2896
    • C:\Windows\SysWOW64\cmd.exe
      "cmd" /c ping 127.0.0.1 -n 18 > nul && copy "C:\Users\Admin\AppData\Local\Temp\QUOTATION #46789RFQ_SUPLM_NOV24_SALEH_CONSTRUCTIONS_LLC_PDF.exe" "C:\Users\Admin\AppData\Roaming\Images.exe" && ping 127.0.0.1 -n 18 > nul && "C:\Users\Admin\AppData\Roaming\Images.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:2720
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 18
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:2620
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 18
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:1656
      • C:\Users\Admin\AppData\Roaming\Images.exe
        "C:\Users\Admin\AppData\Roaming\Images.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:584
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
          4⤵
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of WriteProcessMemory
          PID:2152
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
            C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe /stext "C:\Users\Admin\AppData\Local\Temp\dinpuwigtss"
            5⤵
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            PID:896
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
            C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe /stext "C:\Users\Admin\AppData\Local\Temp\ndshvgsahbkpjzq"
            5⤵
            • Accesses Microsoft Outlook accounts
            • System Location Discovery: System Language Discovery
            PID:1068
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
            C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe /stext "C:\Users\Admin\AppData\Local\Temp\xffawylbvjcumfezdf"
            5⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of AdjustPrivilegeToken
            PID:1436

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    2B

    MD5

    f3b25701fe362ec84616a93a45ce9998

    SHA1

    d62636d8caec13f04e28442a0a6fa1afeb024bbb

    SHA256

    b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

    SHA512

    98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

  • \Users\Admin\AppData\Roaming\Images.exe

    Filesize

    1.3MB

    MD5

    5c44a72a49fe4fbc94f1c1aa8cbf0ab6

    SHA1

    d0d0903f73b4aa11ee580fb6fd8d80775e6e88de

    SHA256

    39fe045b17ab2fcdb512758a431845409c29ca9341090ac81878658423c39129

    SHA512

    d92503e2ebbaa4e8728098cf6d0079de711a4f92663ad9db8583d848721818e4ecf3790a65253a0cd850c23eed8a46f98049a11f77b9f106344e501d124fbb97

  • memory/584-17-0x0000000000060000-0x00000000001A6000-memory.dmp

    Filesize

    1.3MB

  • memory/584-18-0x00000000007B0000-0x00000000007CA000-memory.dmp

    Filesize

    104KB

  • memory/584-19-0x0000000000790000-0x0000000000796000-memory.dmp

    Filesize

    24KB

  • memory/2152-54-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2152-38-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2152-28-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2152-30-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2152-26-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2152-57-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2152-22-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2152-32-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2152-33-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2152-34-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2152-35-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2152-36-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2152-37-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2152-58-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2152-39-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2152-40-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2152-41-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2152-42-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2152-43-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2152-44-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2152-45-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2152-46-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2152-47-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2152-48-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2152-49-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2152-59-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2152-51-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2152-52-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2152-53-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2152-20-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2152-55-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2152-56-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2152-24-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2152-83-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2152-50-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2152-60-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2152-61-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2152-62-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2152-63-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2152-64-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2152-65-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2152-66-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2152-67-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2152-68-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2152-69-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2152-70-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2152-71-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2152-72-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2152-73-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2152-74-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2152-75-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2152-76-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2152-77-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2152-78-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2152-79-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2152-80-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2152-81-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2152-82-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2384-1-0x0000000000240000-0x0000000000386000-memory.dmp

    Filesize

    1.3MB

  • memory/2384-0-0x000000007463E000-0x000000007463F000-memory.dmp

    Filesize

    4KB

  • memory/2384-2-0x0000000000390000-0x00000000003D4000-memory.dmp

    Filesize

    272KB

  • memory/2384-3-0x0000000074630000-0x0000000074D1E000-memory.dmp

    Filesize

    6.9MB

  • memory/2384-4-0x000000007463E000-0x000000007463F000-memory.dmp

    Filesize

    4KB

  • memory/2384-5-0x0000000074630000-0x0000000074D1E000-memory.dmp

    Filesize

    6.9MB

  • memory/2384-6-0x0000000074630000-0x0000000074D1E000-memory.dmp

    Filesize

    6.9MB