Analysis

  • max time kernel
    299s
  • max time network
    270s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    19-09-2024 09:49

General

  • Target

    19092024_0949_TJgGO5EprAaBIME.exe

  • Size

    908KB

  • MD5

    b2125f1650b58eddaa86b18ed64871a5

  • SHA1

    d28fd63324a74b0c61a29e964f863bf79668f9a6

  • SHA256

    717ba8a5452f784b6c8df7936a0c4668720cf0ad480b9dfab9028056d398a466

  • SHA512

    f8620026e270376e561da0d5a2f458b10476db82c426bc8261dfeb66f3d3d2f9ff5d96abd69b712d492ae878b0f2f69da0bf836bed59bc23818062f83b9e7c85

  • SSDEEP

    24576:Xoq0yKtaUx9ekC04qZoAe+QA4VMsN7y1NZSZNGMCgcCzqI+gN8w:4vy2nx9ZMq+AAA51UNGMCgRN8w

Malware Config

Extracted

Family

remcos

Botnet

Sept 03 2024

C2

salonirang.duckdns.org:54604

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

    bookmark

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    Rmc-SPKD1X

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\19092024_0949_TJgGO5EprAaBIME.exe
    "C:\Users\Admin\AppData\Local\Temp\19092024_0949_TJgGO5EprAaBIME.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2180
    • 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\19092024_0949_TJgGO5EprAaBIME.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2968
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\gVmBHRfidrI.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2912
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\gVmBHRfidrI" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8ED7.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2208
    • C:\Users\Admin\AppData\Local\Temp\19092024_0949_TJgGO5EprAaBIME.exe
      "C:\Users\Admin\AppData\Local\Temp\19092024_0949_TJgGO5EprAaBIME.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1664
      • C:\Users\Admin\AppData\Local\Temp\19092024_0949_TJgGO5EprAaBIME.exe
        C:\Users\Admin\AppData\Local\Temp\19092024_0949_TJgGO5EprAaBIME.exe /stext "C:\Users\Admin\AppData\Local\Temp\cmhwuc"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        PID:2408
      • C:\Users\Admin\AppData\Local\Temp\19092024_0949_TJgGO5EprAaBIME.exe
        C:\Users\Admin\AppData\Local\Temp\19092024_0949_TJgGO5EprAaBIME.exe /stext "C:\Users\Admin\AppData\Local\Temp\mgvpvvowe"
        3⤵
        • Accesses Microsoft Outlook accounts
        • System Location Discovery: System Language Discovery
        PID:2304
      • C:\Users\Admin\AppData\Local\Temp\19092024_0949_TJgGO5EprAaBIME.exe
        C:\Users\Admin\AppData\Local\Temp\19092024_0949_TJgGO5EprAaBIME.exe /stext "C:\Users\Admin\AppData\Local\Temp\wiaivnzprtyl"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:2864

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    2B

    MD5

    f3b25701fe362ec84616a93a45ce9998

    SHA1

    d62636d8caec13f04e28442a0a6fa1afeb024bbb

    SHA256

    b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

    SHA512

    98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

  • C:\Users\Admin\AppData\Local\Temp\tmp8ED7.tmp

    Filesize

    1KB

    MD5

    e8e8743fa5cf0b3a8dae47dbe122895f

    SHA1

    043ddf0899c44779683ced09c794589e8131f511

    SHA256

    23313853f16d5b6f11e1e57b5b66a408abdb4f646e22ae8406fc305a30e01070

    SHA512

    9e0d0dd6c4c2b4cae79337ceadc43c2837e1ccf76d381e81a02e2b4ed9a02f0e993511ad74f9ee2fd993a774283b52a209433cdc66dbc2ea38dd6108e50af42d

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\SILBXFEZJIY5FW9JZ01L.temp

    Filesize

    7KB

    MD5

    958bda5fa908846dbf8784c0166b73c9

    SHA1

    c6c241c9c96789c27d55521da3e68a601d9ac4a4

    SHA256

    7a216c70119a5f031b2186a3da6c380e658317a317e0646f1a4ea8ade0cadef2

    SHA512

    1630d4fc886fdc906dfa68ac4c02afc82cbac0af02252a73840a9c00eff2c1f46716c23d746b4e37a496d28b9076a0487c8003edc95497abcd09305cf0efb3d5

  • C:\Users\Admin\AppData\Roaming\bookmark\logs.dat

    Filesize

    144B

    MD5

    8947fbe3aad6105767491d435e56e871

    SHA1

    4cda206d2799309f0c3f23a4cb4c85518e7549ce

    SHA256

    c4a9acd7facefee8849d7b8444eef96ea2faa0ed1fdc7ed9b3337925f1bc816a

    SHA512

    8ba83baf620fe360cfc3db811a9166c12eeea4fe14e2e6e28d636056f5ba8e2860c8d85567500d2976c02553fa23864d376ac6c45c369f24a32a3e5d4cc8d36b

  • memory/1664-49-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1664-77-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1664-134-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1664-36-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1664-34-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1664-32-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1664-30-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1664-28-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1664-26-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1664-24-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1664-22-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1664-21-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1664-126-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1664-125-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1664-117-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1664-109-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1664-102-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1664-101-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1664-42-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1664-43-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1664-44-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1664-46-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1664-47-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1664-45-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1664-40-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1664-51-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1664-37-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1664-110-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1664-93-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1664-94-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1664-85-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1664-18-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1664-78-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1664-75-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1664-73-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/1664-35-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1664-70-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/1664-74-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/2180-4-0x0000000074B80000-0x000000007526E000-memory.dmp

    Filesize

    6.9MB

  • memory/2180-1-0x0000000000B80000-0x0000000000C6A000-memory.dmp

    Filesize

    936KB

  • memory/2180-0-0x0000000074B8E000-0x0000000074B8F000-memory.dmp

    Filesize

    4KB

  • memory/2180-41-0x0000000074B80000-0x000000007526E000-memory.dmp

    Filesize

    6.9MB

  • memory/2180-2-0x0000000074B80000-0x000000007526E000-memory.dmp

    Filesize

    6.9MB

  • memory/2180-3-0x0000000000450000-0x0000000000460000-memory.dmp

    Filesize

    64KB

  • memory/2180-5-0x00000000054D0000-0x0000000005592000-memory.dmp

    Filesize

    776KB

  • memory/2304-57-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/2304-59-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/2304-55-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/2408-56-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2408-53-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2408-58-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2864-62-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/2864-63-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/2864-61-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB