Analysis

  • max time kernel
    150s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/08/2024, 02:08

General

  • Target

    ae284655948354c6ed48e95cf2aaa058d376ed19d2aa69aa38eecea72ee2f576.exe

  • Size

    1.1MB

  • MD5

    bc3e6bce7d0710d3f7e9e84c4be8008d

  • SHA1

    ec0f3bfb11e17040fd4ef3c9d2399fd95ce4bade

  • SHA256

    ae284655948354c6ed48e95cf2aaa058d376ed19d2aa69aa38eecea72ee2f576

  • SHA512

    4137e1f10b868469a746c1d78c2194fae87a3d06fd642c254a76a99871ad4835840f3d19c739b819e5c26446db72840a20a216a29a3f2f54fe1f5fe5724b1d63

  • SSDEEP

    24576:D95C/qaSuhCBs5TcglDxzrGZQpio7Cyd3HkY3jJaXqm3Z:biUuO+TcmDxuex7CyxkYYqmJ

Malware Config

Extracted

Family

remcos

Botnet

AUG 20

C2

sungito2.ddns.net:5055

154.216.19.222:7088

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-7RIKHP

  • 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 13 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\ae284655948354c6ed48e95cf2aaa058d376ed19d2aa69aa38eecea72ee2f576.exe
    "C:\Users\Admin\AppData\Local\Temp\ae284655948354c6ed48e95cf2aaa058d376ed19d2aa69aa38eecea72ee2f576.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:4796
    • 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\ae284655948354c6ed48e95cf2aaa058d376ed19d2aa69aa38eecea72ee2f576.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2124
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\SAhGiXEbRrLb.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1020
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\SAhGiXEbRrLb" /XML "C:\Users\Admin\AppData\Local\Temp\tmp22E5.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:4932
    • C:\Users\Admin\AppData\Local\Temp\ae284655948354c6ed48e95cf2aaa058d376ed19d2aa69aa38eecea72ee2f576.exe
      "C:\Users\Admin\AppData\Local\Temp\ae284655948354c6ed48e95cf2aaa058d376ed19d2aa69aa38eecea72ee2f576.exe"
      2⤵
        PID:3764
      • C:\Users\Admin\AppData\Local\Temp\ae284655948354c6ed48e95cf2aaa058d376ed19d2aa69aa38eecea72ee2f576.exe
        "C:\Users\Admin\AppData\Local\Temp\ae284655948354c6ed48e95cf2aaa058d376ed19d2aa69aa38eecea72ee2f576.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:4068
        • C:\Users\Admin\AppData\Local\Temp\ae284655948354c6ed48e95cf2aaa058d376ed19d2aa69aa38eecea72ee2f576.exe
          C:\Users\Admin\AppData\Local\Temp\ae284655948354c6ed48e95cf2aaa058d376ed19d2aa69aa38eecea72ee2f576.exe /stext "C:\Users\Admin\AppData\Local\Temp\eegcimiwkqjvgyuhjanlomiybw"
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          PID:5072
        • C:\Users\Admin\AppData\Local\Temp\ae284655948354c6ed48e95cf2aaa058d376ed19d2aa69aa38eecea72ee2f576.exe
          C:\Users\Admin\AppData\Local\Temp\ae284655948354c6ed48e95cf2aaa058d376ed19d2aa69aa38eecea72ee2f576.exe /stext "C:\Users\Admin\AppData\Local\Temp\hgmvifsyyzbaqmqlslanzyvpbcgeh"
          3⤵
            PID:452
          • C:\Users\Admin\AppData\Local\Temp\ae284655948354c6ed48e95cf2aaa058d376ed19d2aa69aa38eecea72ee2f576.exe
            C:\Users\Admin\AppData\Local\Temp\ae284655948354c6ed48e95cf2aaa058d376ed19d2aa69aa38eecea72ee2f576.exe /stext "C:\Users\Admin\AppData\Local\Temp\hgmvifsyyzbaqmqlslanzyvpbcgeh"
            3⤵
            • Accesses Microsoft Outlook accounts
            • System Location Discovery: System Language Discovery
            PID:1828
          • C:\Users\Admin\AppData\Local\Temp\ae284655948354c6ed48e95cf2aaa058d376ed19d2aa69aa38eecea72ee2f576.exe
            C:\Users\Admin\AppData\Local\Temp\ae284655948354c6ed48e95cf2aaa058d376ed19d2aa69aa38eecea72ee2f576.exe /stext "C:\Users\Admin\AppData\Local\Temp\rarnjpdsmhtntsepkwmoclpykjqnirnqz"
            3⤵
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:1180

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\ProgramData\remcos\logs.dat

        Filesize

        144B

        MD5

        efa7eccadc3b65cbaa31105142cabce2

        SHA1

        7d0a732a5bf6a254206873d85593392b19cb32e0

        SHA256

        7494e72ca56aa32f515486fe047850ad7a7a6af82408f3ffe4b141309e72b5cb

        SHA512

        0ed6fc9d02ff9f3a8a5fe15f833aadbc4eebfe79825e830047a7ea973ec58245e0832cdf95d202fa2100fb6842f27e594cbaa9669c2609d8ef1ac09b32714d56

      • 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

        d0465e708b24d87d5d8db2e9c3a63bfa

        SHA1

        71beb1e96b288691e1ce68c6c2fc877a3d18d21b

        SHA256

        414fc2dab92a20a60211ed931b738cff96e9d039f5d8887e813282721796c52d

        SHA512

        4fc7abb8d0e38ce80b0bd47744f8c0b4dabf11860e93e662f4cfdd8d6399469ff99acb8fc355ad43f2987998b38eee996ce77059b4aa64bb5505d7f603983356

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_qgoqqhtc.rfh.ps1

        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

        Filesize

        4KB

        MD5

        16f4f7c4051f4bbdaa93a1ca80690065

        SHA1

        750cacbdd2d089a88119374560d6ac004954e90e

        SHA256

        6c4559e4413cccaeab73cad48ffd804506c95566e4d6a3f5ae64017a33ea6ec2

        SHA512

        cb0f68d393ad03a5c802a2978ff7b12e20911bac5e27200c2df16d5d3f63dfc2387c0cd1a9075d8e4ba9ae804a6b61225575e2f42b3ef024e863d5b172417964

      • C:\Users\Admin\AppData\Local\Temp\tmp22E5.tmp

        Filesize

        1KB

        MD5

        12e2f4e965d23a2a1cd259ca05786d9a

        SHA1

        fa0ce97f45f04e81cddf3c86c10031c20bf1b667

        SHA256

        c45f15c06ede829991f098744c6ddeb2fd9adcb6879edb6b8a1c62cb81e43be0

        SHA512

        ffd9a69f637c99450ece8c2d3339e7fada5bcd5d57a49b08d778b8dbfc594270ec9a6fe9b46d07881086ee51a20b13fec60250c023dd9ee00229f35d626d3d05

      • memory/1020-55-0x0000000006370000-0x000000000638E000-memory.dmp

        Filesize

        120KB

      • memory/1020-100-0x00000000076B0000-0x00000000076CA000-memory.dmp

        Filesize

        104KB

      • memory/1020-120-0x0000000074640000-0x0000000074DF0000-memory.dmp

        Filesize

        7.7MB

      • memory/1020-101-0x0000000007720000-0x000000000772A000-memory.dmp

        Filesize

        40KB

      • memory/1020-113-0x00000000079F0000-0x0000000007A0A000-memory.dmp

        Filesize

        104KB

      • memory/1020-114-0x00000000079D0000-0x00000000079D8000-memory.dmp

        Filesize

        32KB

      • memory/1020-98-0x0000000007370000-0x0000000007413000-memory.dmp

        Filesize

        652KB

      • memory/1020-79-0x0000000074EF0000-0x0000000074F3C000-memory.dmp

        Filesize

        304KB

      • memory/1020-56-0x0000000006420000-0x000000000646C000-memory.dmp

        Filesize

        304KB

      • memory/1020-35-0x0000000074640000-0x0000000074DF0000-memory.dmp

        Filesize

        7.7MB

      • memory/1020-36-0x0000000074640000-0x0000000074DF0000-memory.dmp

        Filesize

        7.7MB

      • memory/1180-74-0x0000000000400000-0x0000000000424000-memory.dmp

        Filesize

        144KB

      • memory/1180-73-0x0000000000400000-0x0000000000424000-memory.dmp

        Filesize

        144KB

      • memory/1180-72-0x0000000000400000-0x0000000000424000-memory.dmp

        Filesize

        144KB

      • memory/1828-69-0x0000000000400000-0x0000000000462000-memory.dmp

        Filesize

        392KB

      • memory/1828-70-0x0000000000400000-0x0000000000462000-memory.dmp

        Filesize

        392KB

      • memory/1828-71-0x0000000000400000-0x0000000000462000-memory.dmp

        Filesize

        392KB

      • memory/2124-110-0x0000000007D60000-0x0000000007D71000-memory.dmp

        Filesize

        68KB

      • memory/2124-34-0x0000000006310000-0x0000000006664000-memory.dmp

        Filesize

        3.3MB

      • memory/2124-23-0x0000000005990000-0x00000000059F6000-memory.dmp

        Filesize

        408KB

      • memory/2124-99-0x00000000081A0000-0x000000000881A000-memory.dmp

        Filesize

        6.5MB

      • memory/2124-24-0x0000000074640000-0x0000000074DF0000-memory.dmp

        Filesize

        7.7MB

      • memory/2124-20-0x0000000005880000-0x00000000058A2000-memory.dmp

        Filesize

        136KB

      • memory/2124-93-0x00000000079D0000-0x00000000079EE000-memory.dmp

        Filesize

        120KB

      • memory/2124-21-0x0000000005920000-0x0000000005986000-memory.dmp

        Filesize

        408KB

      • memory/2124-19-0x0000000074640000-0x0000000074DF0000-memory.dmp

        Filesize

        7.7MB

      • memory/2124-17-0x0000000005A60000-0x0000000006088000-memory.dmp

        Filesize

        6.2MB

      • memory/2124-76-0x00000000079F0000-0x0000000007A22000-memory.dmp

        Filesize

        200KB

      • memory/2124-18-0x0000000074640000-0x0000000074DF0000-memory.dmp

        Filesize

        7.7MB

      • memory/2124-77-0x0000000074EF0000-0x0000000074F3C000-memory.dmp

        Filesize

        304KB

      • memory/2124-16-0x0000000002EF0000-0x0000000002F26000-memory.dmp

        Filesize

        216KB

      • memory/2124-109-0x0000000007DE0000-0x0000000007E76000-memory.dmp

        Filesize

        600KB

      • memory/2124-111-0x0000000007D90000-0x0000000007D9E000-memory.dmp

        Filesize

        56KB

      • memory/2124-112-0x0000000007DA0000-0x0000000007DB4000-memory.dmp

        Filesize

        80KB

      • memory/2124-121-0x0000000074640000-0x0000000074DF0000-memory.dmp

        Filesize

        7.7MB

      • memory/4068-106-0x0000000010000000-0x0000000010019000-memory.dmp

        Filesize

        100KB

      • memory/4068-142-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4068-151-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4068-63-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4068-150-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4068-59-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4068-60-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4068-58-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4068-57-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4068-38-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4068-40-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4068-127-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4068-54-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4068-43-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4068-107-0x0000000010000000-0x0000000010019000-memory.dmp

        Filesize

        100KB

      • memory/4068-135-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4068-103-0x0000000010000000-0x0000000010019000-memory.dmp

        Filesize

        100KB

      • memory/4068-37-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4068-108-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4068-134-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4068-126-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4796-11-0x00000000063E0000-0x00000000064A0000-memory.dmp

        Filesize

        768KB

      • memory/4796-2-0x0000000005470000-0x0000000005A14000-memory.dmp

        Filesize

        5.6MB

      • memory/4796-7-0x0000000005190000-0x00000000051A2000-memory.dmp

        Filesize

        72KB

      • memory/4796-6-0x00000000051B0000-0x000000000524C000-memory.dmp

        Filesize

        624KB

      • memory/4796-5-0x0000000004FC0000-0x0000000004FCA000-memory.dmp

        Filesize

        40KB

      • memory/4796-4-0x0000000074640000-0x0000000074DF0000-memory.dmp

        Filesize

        7.7MB

      • memory/4796-3-0x0000000004DD0000-0x0000000004E62000-memory.dmp

        Filesize

        584KB

      • memory/4796-8-0x000000007464E000-0x000000007464F000-memory.dmp

        Filesize

        4KB

      • memory/4796-9-0x0000000074640000-0x0000000074DF0000-memory.dmp

        Filesize

        7.7MB

      • memory/4796-10-0x0000000005260000-0x0000000005270000-memory.dmp

        Filesize

        64KB

      • memory/4796-1-0x00000000002B0000-0x00000000003D0000-memory.dmp

        Filesize

        1.1MB

      • memory/4796-53-0x0000000074640000-0x0000000074DF0000-memory.dmp

        Filesize

        7.7MB

      • memory/4796-0-0x000000007464E000-0x000000007464F000-memory.dmp

        Filesize

        4KB

      • memory/5072-64-0x0000000000400000-0x0000000000478000-memory.dmp

        Filesize

        480KB

      • memory/5072-62-0x0000000000400000-0x0000000000478000-memory.dmp

        Filesize

        480KB

      • memory/5072-65-0x0000000000400000-0x0000000000478000-memory.dmp

        Filesize

        480KB