Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    06-09-2024 07:21

General

  • Target

    5fe247828f3087cbede022c3db3c57ac8c0bb0138ea8e3424021afc4e314d076.exe

  • Size

    1.2MB

  • MD5

    351186b9b345b2fa94ab174c4c19b14f

  • SHA1

    a736ed0ceb2cff740b9f1a6e7a0ce0efbf685fc5

  • SHA256

    5fe247828f3087cbede022c3db3c57ac8c0bb0138ea8e3424021afc4e314d076

  • SHA512

    8a105558ba42004e9aec1d21807144a8814241f9cc130367bfb6bd6d815accc5de21bec102e25acabc6818c29917061f2e1040651fa798fcaee85a9198911fcc

  • SSDEEP

    24576:pUobyhBVHw9S2uk4zCbu26CKVHT38VqnlaV7pNI3xL35yd:iF9D2uk42bb1KVH78VqQbIt3y

Malware Config

Extracted

Family

remcos

Botnet

SEPT 5

C2

sungito2.ddns.net:6509

154.216.19.222:5532

Attributes
  • audio_folder

    MicRecords

  • 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-WJKXMP

  • 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.

  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • Detected Nirsoft tools 3 IoCs

    Free utilities often used by attackers which can steal passwords, product keys, etc.

  • NirSoft MailPassView 1 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 1 IoCs

    Password recovery tool for various web browsers

  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • 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
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 40 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5fe247828f3087cbede022c3db3c57ac8c0bb0138ea8e3424021afc4e314d076.exe
    "C:\Users\Admin\AppData\Local\Temp\5fe247828f3087cbede022c3db3c57ac8c0bb0138ea8e3424021afc4e314d076.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1952
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\5fe247828f3087cbede022c3db3c57ac8c0bb0138ea8e3424021afc4e314d076.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2288
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\dYDLGuPwXKp.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2864
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\dYDLGuPwXKp" /XML "C:\Users\Admin\AppData\Local\Temp\tmp148A.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2868
    • C:\Users\Admin\AppData\Local\Temp\5fe247828f3087cbede022c3db3c57ac8c0bb0138ea8e3424021afc4e314d076.exe
      "C:\Users\Admin\AppData\Local\Temp\5fe247828f3087cbede022c3db3c57ac8c0bb0138ea8e3424021afc4e314d076.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2132
      • C:\Users\Admin\AppData\Local\Temp\5fe247828f3087cbede022c3db3c57ac8c0bb0138ea8e3424021afc4e314d076.exe
        C:\Users\Admin\AppData\Local\Temp\5fe247828f3087cbede022c3db3c57ac8c0bb0138ea8e3424021afc4e314d076.exe /stext "C:\Users\Admin\AppData\Local\Temp\xgcxrsqzzigavwxefp"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        PID:2824
      • C:\Users\Admin\AppData\Local\Temp\5fe247828f3087cbede022c3db3c57ac8c0bb0138ea8e3424021afc4e314d076.exe
        C:\Users\Admin\AppData\Local\Temp\5fe247828f3087cbede022c3db3c57ac8c0bb0138ea8e3424021afc4e314d076.exe /stext "C:\Users\Admin\AppData\Local\Temp\aahqskbsmqynykliwscxj"
        3⤵
        • Accesses Microsoft Outlook accounts
        • System Location Discovery: System Language Discovery
        PID:3028
      • C:\Users\Admin\AppData\Local\Temp\5fe247828f3087cbede022c3db3c57ac8c0bb0138ea8e3424021afc4e314d076.exe
        C:\Users\Admin\AppData\Local\Temp\5fe247828f3087cbede022c3db3c57ac8c0bb0138ea8e3424021afc4e314d076.exe /stext "C:\Users\Admin\AppData\Local\Temp\kcmatdmuiyqsirhmfdpymbcz"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:2844

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\remcos\logs.dat

    Filesize

    144B

    MD5

    a152c02b8cef374847203192276c3ef3

    SHA1

    b7018343d69aae7ea32706da9b76d1866e1ac6d3

    SHA256

    23db4a6c6fcf213ce6e6bf545958e620209adfbd38943b807efafd03ba5b5473

    SHA512

    33d18d8d448ebe7f779ef34afaa9df66d75ee4f5f52f79d24aed17c70a9845f1113a0cc29e590c1aec511a1a9ffe64d06266b8141e60beb743c231f48f9bdbdd

  • C:\Users\Admin\AppData\Local\Temp\tmp148A.tmp

    Filesize

    1KB

    MD5

    e6c376b9acc95585fd2865d293acc7fd

    SHA1

    ac72b45e8824540e3b6326e6abbf5c141fdd9528

    SHA256

    1d409a7ee321053bc784b5186381edb137fe1fbf05bb41ea19671636746239a8

    SHA512

    6e1949b0e42ebfb77f0e9834f929850a85e9de784a1331384fbad34e42d5c18abd057e368bc9b743be50b7a1cbaf6d6f1de0923e72c830e38485995683998631

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

    Filesize

    2B

    MD5

    f3b25701fe362ec84616a93a45ce9998

    SHA1

    d62636d8caec13f04e28442a0a6fa1afeb024bbb

    SHA256

    b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

    SHA512

    98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

    Filesize

    7KB

    MD5

    cbe67914c070d4359c893a2d0d126156

    SHA1

    ec059fb2b3f485e633e6a0173d0115478e2a8766

    SHA256

    2bbfabacdad7a6c7bd2b0d11ca5d56a22959460a8dc1cb255b3626f1d3e32492

    SHA512

    58b268e630a4afe2a526750e6cc69dc04b2b231cad08175bc0d180af69dde55496b0393b995c45bd2b50c53ef657a19d6106828b511405f5365612d4effdfd5e

  • memory/1952-0-0x000000007407E000-0x000000007407F000-memory.dmp

    Filesize

    4KB

  • memory/1952-1-0x0000000000F20000-0x0000000001050000-memory.dmp

    Filesize

    1.2MB

  • memory/1952-2-0x0000000074070000-0x000000007475E000-memory.dmp

    Filesize

    6.9MB

  • memory/1952-3-0x0000000000BE0000-0x0000000000BF8000-memory.dmp

    Filesize

    96KB

  • memory/1952-4-0x000000007407E000-0x000000007407F000-memory.dmp

    Filesize

    4KB

  • memory/1952-5-0x0000000074070000-0x000000007475E000-memory.dmp

    Filesize

    6.9MB

  • memory/1952-6-0x0000000005350000-0x0000000005410000-memory.dmp

    Filesize

    768KB

  • memory/1952-41-0x0000000074070000-0x000000007475E000-memory.dmp

    Filesize

    6.9MB

  • memory/2132-45-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2132-72-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/2132-35-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2132-33-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2132-31-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2132-29-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2132-27-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2132-25-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2132-23-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2132-43-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2132-21-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2132-37-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2132-38-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2132-44-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2132-46-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2132-48-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2132-49-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2132-101-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2132-100-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2132-92-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2132-93-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2132-84-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2132-20-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2132-77-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2132-76-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2132-73-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2132-42-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2132-68-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/2132-36-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2132-71-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/2824-51-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2824-54-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2824-56-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2844-61-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/2844-60-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/2844-59-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/3028-55-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/3028-57-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/3028-53-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB