Analysis

  • max time kernel
    299s
  • max time network
    300s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-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.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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 14 IoCs
  • Suspicious behavior: MapViewOfSection 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 39 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\19092024_0949_TJgGO5EprAaBIME.exe
    "C:\Users\Admin\AppData\Local\Temp\19092024_0949_TJgGO5EprAaBIME.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2992
    • 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:4344
    • 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:4472
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\gVmBHRfidrI" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC459.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:3656
    • C:\Users\Admin\AppData\Local\Temp\19092024_0949_TJgGO5EprAaBIME.exe
      "C:\Users\Admin\AppData\Local\Temp\19092024_0949_TJgGO5EprAaBIME.exe"
      2⤵
        PID:2740
      • 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:924
        • 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\rrtxkmp"
          3⤵
            PID:4652
          • 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\rrtxkmp"
            3⤵
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            PID:4212
          • 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\btzqdfzjwe"
            3⤵
            • Accesses Microsoft Outlook accounts
            • System Location Discovery: System Language Discovery
            PID:456
          • 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\mneidxkdsmpvbw"
            3⤵
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:1764

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

        Filesize

        2KB

        MD5

        968cb9309758126772781b83adb8a28f

        SHA1

        8da30e71accf186b2ba11da1797cf67f8f78b47c

        SHA256

        92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

        SHA512

        4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

        Filesize

        18KB

        MD5

        d5d27587e194d5b71a2ae4dafe2642bc

        SHA1

        1425e65e3e644ab5405bfec7efcc15daf43de322

        SHA256

        6196b678c52c4fe7c4814dd80b615dcac195de7de8e057bd861e5dcd552eca24

        SHA512

        903f48c628caecd227c9eb7b439bac6291da67235c21c2979d3d0a6333baaafb26af665f8a73a0bb396c1924561d11b6d306be467c24b8468f417eaedbdf70d1

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_duuhcwzb.np4.ps1

        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

        Filesize

        4KB

        MD5

        1891919175c888ce82e9bd8a047b01ad

        SHA1

        502a6892a5d27ecb791ac5aa6d8586944f540453

        SHA256

        a6c43b4e4b8681cf0ef56c49c730fa77e34dc82db0260253a3ba75039030b9ec

        SHA512

        8bb940050b1abf6c27db133ed446f41e108f670f361ed5102408832ce33d9b87cd0880723441f1632292eeeb0a319c4e0fac0ea659eb55ebe1130cc3e6c776a3

      • C:\Users\Admin\AppData\Local\Temp\tmpC459.tmp

        Filesize

        1KB

        MD5

        bbc25b17c64cc3641065ffbeef46393b

        SHA1

        356233027206d337b9bb75d9fd66ace0ed5115eb

        SHA256

        6fdda6100a1d654e1a3ba42e66f267578c09a1c611c3d59d6382b68ba1131fff

        SHA512

        4f9ef304d04949eb711f48fb4d94075a1928ce3827d9cab69e44ea2b01740faa8776747bf34d62e149b2a1a2e3bd859343167cae6b078876cc549b65dc5011c3

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

        Filesize

        144B

        MD5

        2b1f6c2eded77113c287e0e9e2e73c65

        SHA1

        4536e986eed730bcf7b61032b4497c78f1c5907b

        SHA256

        4ab48b4fa3c16af6c55690456af84a1b5677858a0f15580cdfad86bb87ed831c

        SHA512

        983c938a48ab3233e64ce31dab7b472f17632b76120b5339649b209800ea39db6e8e6261ac65220eedcf45230ac52adc410ebba076bc2c88d92dcc25b9d11c7a

      • memory/456-108-0x0000000000400000-0x0000000000462000-memory.dmp

        Filesize

        392KB

      • memory/456-115-0x0000000000400000-0x0000000000462000-memory.dmp

        Filesize

        392KB

      • memory/456-114-0x0000000000400000-0x0000000000462000-memory.dmp

        Filesize

        392KB

      • memory/924-162-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/924-129-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/924-163-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/924-98-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/924-155-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/924-171-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/924-154-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/924-23-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/924-22-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/924-146-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/924-29-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/924-139-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/924-35-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/924-138-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/924-178-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/924-179-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/924-131-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/924-36-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/924-130-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/924-170-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/924-26-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/924-127-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/924-125-0x0000000010000000-0x0000000010019000-memory.dmp

        Filesize

        100KB

      • memory/924-24-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/924-126-0x0000000010000000-0x0000000010019000-memory.dmp

        Filesize

        100KB

      • memory/924-186-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/924-60-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/924-59-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/924-62-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/924-61-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/924-65-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/924-122-0x0000000010000000-0x0000000010019000-memory.dmp

        Filesize

        100KB

      • memory/924-202-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/924-203-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/924-187-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/924-194-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/924-195-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/1764-110-0x0000000000400000-0x0000000000424000-memory.dmp

        Filesize

        144KB

      • memory/1764-112-0x0000000000400000-0x0000000000424000-memory.dmp

        Filesize

        144KB

      • memory/1764-111-0x0000000000400000-0x0000000000424000-memory.dmp

        Filesize

        144KB

      • memory/2992-43-0x00000000748F0000-0x00000000750A0000-memory.dmp

        Filesize

        7.7MB

      • memory/2992-6-0x0000000007170000-0x0000000007180000-memory.dmp

        Filesize

        64KB

      • memory/2992-1-0x0000000000E90000-0x0000000000F7A000-memory.dmp

        Filesize

        936KB

      • memory/2992-2-0x0000000005F50000-0x00000000064F4000-memory.dmp

        Filesize

        5.6MB

      • memory/2992-3-0x0000000005830000-0x00000000058C2000-memory.dmp

        Filesize

        584KB

      • memory/2992-4-0x00000000058D0000-0x00000000058DA000-memory.dmp

        Filesize

        40KB

      • memory/2992-5-0x00000000748F0000-0x00000000750A0000-memory.dmp

        Filesize

        7.7MB

      • memory/2992-0-0x00000000748FE000-0x00000000748FF000-memory.dmp

        Filesize

        4KB

      • memory/2992-7-0x00000000748FE000-0x00000000748FF000-memory.dmp

        Filesize

        4KB

      • memory/2992-8-0x00000000748F0000-0x00000000750A0000-memory.dmp

        Filesize

        7.7MB

      • memory/2992-9-0x0000000007620000-0x00000000076E2000-memory.dmp

        Filesize

        776KB

      • memory/2992-10-0x0000000009C60000-0x0000000009CFC000-memory.dmp

        Filesize

        624KB

      • memory/4212-109-0x0000000000400000-0x0000000000478000-memory.dmp

        Filesize

        480KB

      • memory/4212-107-0x0000000000400000-0x0000000000478000-memory.dmp

        Filesize

        480KB

      • memory/4212-113-0x0000000000400000-0x0000000000478000-memory.dmp

        Filesize

        480KB

      • memory/4344-15-0x00000000022D0000-0x0000000002306000-memory.dmp

        Filesize

        216KB

      • memory/4344-106-0x00000000748F0000-0x00000000750A0000-memory.dmp

        Filesize

        7.7MB

      • memory/4344-66-0x0000000006D70000-0x0000000006DA2000-memory.dmp

        Filesize

        200KB

      • memory/4344-95-0x0000000007140000-0x0000000007154000-memory.dmp

        Filesize

        80KB

      • memory/4344-67-0x0000000075180000-0x00000000751CC000-memory.dmp

        Filesize

        304KB

      • memory/4344-58-0x0000000005D40000-0x0000000005D8C000-memory.dmp

        Filesize

        304KB

      • memory/4344-18-0x00000000748F0000-0x00000000750A0000-memory.dmp

        Filesize

        7.7MB

      • memory/4344-57-0x0000000005BE0000-0x0000000005BFE000-memory.dmp

        Filesize

        120KB

      • memory/4344-25-0x00000000748F0000-0x00000000750A0000-memory.dmp

        Filesize

        7.7MB

      • memory/4344-31-0x0000000004E20000-0x0000000004E42000-memory.dmp

        Filesize

        136KB

      • memory/4344-32-0x0000000004EC0000-0x0000000004F26000-memory.dmp

        Filesize

        408KB

      • memory/4344-37-0x0000000005600000-0x0000000005954000-memory.dmp

        Filesize

        3.3MB

      • memory/4344-78-0x0000000006DB0000-0x0000000006E53000-memory.dmp

        Filesize

        652KB

      • memory/4344-93-0x0000000007100000-0x0000000007111000-memory.dmp

        Filesize

        68KB

      • memory/4344-33-0x0000000005590000-0x00000000055F6000-memory.dmp

        Filesize

        408KB

      • memory/4344-92-0x0000000007180000-0x0000000007216000-memory.dmp

        Filesize

        600KB

      • memory/4344-91-0x0000000006F70000-0x0000000006F7A000-memory.dmp

        Filesize

        40KB

      • memory/4344-16-0x0000000004F60000-0x0000000005588000-memory.dmp

        Filesize

        6.2MB

      • memory/4344-17-0x00000000748F0000-0x00000000750A0000-memory.dmp

        Filesize

        7.7MB

      • memory/4344-77-0x0000000006D50000-0x0000000006D6E000-memory.dmp

        Filesize

        120KB

      • memory/4472-90-0x00000000079E0000-0x00000000079FA000-memory.dmp

        Filesize

        104KB

      • memory/4472-89-0x0000000008020000-0x000000000869A000-memory.dmp

        Filesize

        6.5MB

      • memory/4472-94-0x0000000007C10000-0x0000000007C1E000-memory.dmp

        Filesize

        56KB

      • memory/4472-105-0x00000000748F0000-0x00000000750A0000-memory.dmp

        Filesize

        7.7MB

      • memory/4472-20-0x00000000748F0000-0x00000000750A0000-memory.dmp

        Filesize

        7.7MB

      • memory/4472-21-0x00000000748F0000-0x00000000750A0000-memory.dmp

        Filesize

        7.7MB

      • memory/4472-34-0x00000000748F0000-0x00000000750A0000-memory.dmp

        Filesize

        7.7MB

      • memory/4472-97-0x0000000007D00000-0x0000000007D08000-memory.dmp

        Filesize

        32KB

      • memory/4472-96-0x0000000007D20000-0x0000000007D3A000-memory.dmp

        Filesize

        104KB

      • memory/4472-79-0x0000000075180000-0x00000000751CC000-memory.dmp

        Filesize

        304KB