Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    06-09-2024 01:19

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:2700
    • 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:2872
    • 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:2612
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\dYDLGuPwXKp" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8E6A.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2576
    • 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:316
      • C:\Users\Admin\AppData\Local\Temp\5fe247828f3087cbede022c3db3c57ac8c0bb0138ea8e3424021afc4e314d076.exe
        C:\Users\Admin\AppData\Local\Temp\5fe247828f3087cbede022c3db3c57ac8c0bb0138ea8e3424021afc4e314d076.exe /stext "C:\Users\Admin\AppData\Local\Temp\qlqptsrdrguemarash"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        PID:3012
      • C:\Users\Admin\AppData\Local\Temp\5fe247828f3087cbede022c3db3c57ac8c0bb0138ea8e3424021afc4e314d076.exe
        C:\Users\Admin\AppData\Local\Temp\5fe247828f3087cbede022c3db3c57ac8c0bb0138ea8e3424021afc4e314d076.exe /stext "C:\Users\Admin\AppData\Local\Temp\afvhtlkeeomiwgfekswiv"
        3⤵
        • Accesses Microsoft Outlook accounts
        • System Location Discovery: System Language Discovery
        PID:572
      • C:\Users\Admin\AppData\Local\Temp\5fe247828f3087cbede022c3db3c57ac8c0bb0138ea8e3424021afc4e314d076.exe
        C:\Users\Admin\AppData\Local\Temp\5fe247828f3087cbede022c3db3c57ac8c0bb0138ea8e3424021afc4e314d076.exe /stext "C:\Users\Admin\AppData\Local\Temp\khjsudvyswenymbitcrkgvqx"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:1064

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\remcos\logs.dat

    Filesize

    144B

    MD5

    a08ee813cb50babf213f7d333147d480

    SHA1

    76d49d791f051bf9ef14ceb1244d32bba11a069c

    SHA256

    bd0f195172829515e32c119b862eba8957392e46778984bda4276bb7fd06836a

    SHA512

    8e4bfe114108caf60dd1d084ff40c56fdf49488a533d57e68b29f58900aeb695812ae3e06f1496b285191a9c0131197cd2fbc34e532f2af81aaa82e530f89014

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

    Filesize

    2B

    MD5

    f3b25701fe362ec84616a93a45ce9998

    SHA1

    d62636d8caec13f04e28442a0a6fa1afeb024bbb

    SHA256

    b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

    SHA512

    98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

  • C:\Users\Admin\AppData\Local\Temp\tmp8E6A.tmp

    Filesize

    1KB

    MD5

    daba6dcc064ae11f176b4d31cb150514

    SHA1

    d805cade2c13d04a65fde791836614d733bc499e

    SHA256

    4b40e9b5d562062967ee89e2c128f07743a7183b842965d3c8bfb58c53aa5442

    SHA512

    69173fd3034728d2c78614b14d39a4c203e54b279b406073069cdd816230179832e6f91e548e55d335c0991ac1468c16b17f407f5ecd1ca18e006394d7bcdacb

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\ZWWWV2NL9NB5N04R3CUP.temp

    Filesize

    7KB

    MD5

    806397817d16976df80156307ea818d7

    SHA1

    414337f0e2c807ac6a55d3d39ebc3200569979dc

    SHA256

    2f9214de91a14e1779fd40d8e952ae7d0225b4c0265c7793fa7a9d9f3c9cf597

    SHA512

    a016d87b182dcea0987849ca9ff59e052d78835a6600532ce07dadef40df88c334b1b6c6a427da443d279def52e2167588f7ae60430e37cd70478784faaa95e4

  • memory/316-46-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/316-25-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/316-101-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/316-100-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/316-93-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/316-27-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/316-37-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/316-38-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/316-92-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/316-36-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/316-35-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/316-33-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/316-41-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/316-31-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/316-84-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/316-49-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/316-24-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/316-43-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/316-21-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/316-20-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/316-44-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/316-45-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/316-29-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/316-48-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/316-76-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/316-77-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/316-73-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/316-71-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/316-72-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/316-68-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/572-61-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/572-58-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/572-55-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/1064-59-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/1064-57-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/1064-56-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1064-60-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/2700-2-0x0000000074D70000-0x000000007545E000-memory.dmp

    Filesize

    6.9MB

  • memory/2700-5-0x0000000074D70000-0x000000007545E000-memory.dmp

    Filesize

    6.9MB

  • memory/2700-1-0x0000000001230000-0x0000000001360000-memory.dmp

    Filesize

    1.2MB

  • memory/2700-0-0x0000000074D7E000-0x0000000074D7F000-memory.dmp

    Filesize

    4KB

  • memory/2700-42-0x0000000074D70000-0x000000007545E000-memory.dmp

    Filesize

    6.9MB

  • memory/2700-3-0x00000000006E0000-0x00000000006F8000-memory.dmp

    Filesize

    96KB

  • memory/2700-4-0x0000000074D7E000-0x0000000074D7F000-memory.dmp

    Filesize

    4KB

  • memory/2700-6-0x0000000005450000-0x0000000005510000-memory.dmp

    Filesize

    768KB

  • memory/3012-52-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/3012-51-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/3012-53-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB