Analysis

  • max time kernel
    150s
  • max time network
    127s
  • 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, 02:00

General

  • Target

    9e6875db397f7d76fcae09d39360a73237b11b1fbfcfa7275bb7fe7cf0d87df8.exe

  • Size

    1.0MB

  • MD5

    ee4e163f38aca1399baa166ca87561d0

  • SHA1

    950960b4606eb30402e53415d30d6591fa92fde9

  • SHA256

    9e6875db397f7d76fcae09d39360a73237b11b1fbfcfa7275bb7fe7cf0d87df8

  • SHA512

    9e121dee4f9f1acc8ca9169ea4161a7654c849cc04b40baa93c24b20003f511c96ff369e9f3913305e3f230de935d8ff3ea522c12e14b71153c50d6113f425dd

  • SSDEEP

    24576:0HH6h1OoaYANm0loL58KwewFARcqlE3r9HMQKN:k8t0loL58KwLgQ7lMQKN

Malware Config

Extracted

Family

remcos

Botnet

Aug 19.2

C2

method8888.ddns.net:6902

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-U6KI2M

  • 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 10 IoCs
  • Suspicious behavior: MapViewOfSection 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9e6875db397f7d76fcae09d39360a73237b11b1fbfcfa7275bb7fe7cf0d87df8.exe
    "C:\Users\Admin\AppData\Local\Temp\9e6875db397f7d76fcae09d39360a73237b11b1fbfcfa7275bb7fe7cf0d87df8.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:868
    • 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\9e6875db397f7d76fcae09d39360a73237b11b1fbfcfa7275bb7fe7cf0d87df8.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4828
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\GIxoePCFR.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4360
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\GIxoePCFR" /XML "C:\Users\Admin\AppData\Local\Temp\tmp319A.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2020
    • C:\Users\Admin\AppData\Local\Temp\9e6875db397f7d76fcae09d39360a73237b11b1fbfcfa7275bb7fe7cf0d87df8.exe
      "C:\Users\Admin\AppData\Local\Temp\9e6875db397f7d76fcae09d39360a73237b11b1fbfcfa7275bb7fe7cf0d87df8.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3596
      • C:\Users\Admin\AppData\Local\Temp\9e6875db397f7d76fcae09d39360a73237b11b1fbfcfa7275bb7fe7cf0d87df8.exe
        C:\Users\Admin\AppData\Local\Temp\9e6875db397f7d76fcae09d39360a73237b11b1fbfcfa7275bb7fe7cf0d87df8.exe /stext "C:\Users\Admin\AppData\Local\Temp\czwxnbupfjs"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        PID:1340
      • C:\Users\Admin\AppData\Local\Temp\9e6875db397f7d76fcae09d39360a73237b11b1fbfcfa7275bb7fe7cf0d87df8.exe
        C:\Users\Admin\AppData\Local\Temp\9e6875db397f7d76fcae09d39360a73237b11b1fbfcfa7275bb7fe7cf0d87df8.exe /stext "C:\Users\Admin\AppData\Local\Temp\nubhotertrkloy"
        3⤵
        • Accesses Microsoft Outlook accounts
        • System Location Discovery: System Language Discovery
        PID:2504
      • C:\Users\Admin\AppData\Local\Temp\9e6875db397f7d76fcae09d39360a73237b11b1fbfcfa7275bb7fe7cf0d87df8.exe
        C:\Users\Admin\AppData\Local\Temp\9e6875db397f7d76fcae09d39360a73237b11b1fbfcfa7275bb7fe7cf0d87df8.exe /stext "C:\Users\Admin\AppData\Local\Temp\xwgapmxlpzcqqfbsv"
        3⤵
          PID:2128
        • C:\Users\Admin\AppData\Local\Temp\9e6875db397f7d76fcae09d39360a73237b11b1fbfcfa7275bb7fe7cf0d87df8.exe
          C:\Users\Admin\AppData\Local\Temp\9e6875db397f7d76fcae09d39360a73237b11b1fbfcfa7275bb7fe7cf0d87df8.exe /stext "C:\Users\Admin\AppData\Local\Temp\xwgapmxlpzcqqfbsv"
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2216

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\ProgramData\remcos\logs.dat

      Filesize

      144B

      MD5

      05d1e78853082e2387707b6117c69ad3

      SHA1

      3d90574139f8f79fbddced91025abfddf9a13890

      SHA256

      0a421d217d4da63c9c4481d6cbd6fad15960ff4de21e7715dcd58f1c77dc869c

      SHA512

      bd27fe409e292935b9cf9f62e4c9aa0d8790ddd539bf444db37e8021d82e29fec820b9e401a13c325a447cd0fef027cd3da039aa2325933b79a0dd82131b4d3b

    • 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

      114bcdcee4f2140398b982a8aaedbac1

      SHA1

      3d75ae355d4e8c5922a29fc43bb6c0a7ac72c48e

      SHA256

      05b88dff9ce84a942549380807d12e9efd49dd33332d910780d5e8fe6dc89635

      SHA512

      504bdcecfdcbe81aca1dca6113be0c68112d04476443b5b2ad1d85fb601185c46b405e68d7e3b5b4da4f78a3c9b52b546acd924be6d76fe0e61c0f0a9cea3611

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_jpm1y2vr.pah.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

      Filesize

      4KB

      MD5

      a7e181f6aa185be0ab0ca68b30406fe6

      SHA1

      58c86162658dc609615b8b6400f85c92506dfdc8

      SHA256

      c3071dc55b94db225d9c0f2c1b21c7e8f27dbfd168b85b7d618d8d19950e7ff2

      SHA512

      49969eb10e0bf7925940eb7374451f811658ef9ccfb83b86fb337c4d06c3ba17eb0181f598d9e0ec9ca25bfaf644209ac47b73d62ac924e73d03a4dcf8f8dd0f

    • C:\Users\Admin\AppData\Local\Temp\tmp319A.tmp

      Filesize

      1KB

      MD5

      683c2948e06978a45ef2750d969b0489

      SHA1

      6dbd8c80235a899bb455152cfa22f39c445d2ee4

      SHA256

      02c1a4f26944d4fe0c64bc764b6add259990fa06aad47be6259fa37735b386ad

      SHA512

      8faf3dca2ffd1446b07708957eac9a147582703257bcf64d25b7644e52acddc0bfeb772dd98c54bb213419ed26cd0a607711f6e67ad2b8ac4f056dfc31a9bdc1

    • memory/868-7-0x000000007485E000-0x000000007485F000-memory.dmp

      Filesize

      4KB

    • memory/868-2-0x0000000005800000-0x0000000005DA4000-memory.dmp

      Filesize

      5.6MB

    • memory/868-8-0x0000000074850000-0x0000000075000000-memory.dmp

      Filesize

      7.7MB

    • memory/868-9-0x00000000065B0000-0x00000000065C0000-memory.dmp

      Filesize

      64KB

    • memory/868-10-0x0000000006B50000-0x0000000006C10000-memory.dmp

      Filesize

      768KB

    • memory/868-11-0x0000000006A90000-0x0000000006B2C000-memory.dmp

      Filesize

      624KB

    • memory/868-6-0x00000000057F0000-0x0000000005802000-memory.dmp

      Filesize

      72KB

    • memory/868-5-0x0000000074850000-0x0000000075000000-memory.dmp

      Filesize

      7.7MB

    • memory/868-4-0x0000000005510000-0x000000000551A000-memory.dmp

      Filesize

      40KB

    • memory/868-3-0x0000000005350000-0x00000000053E2000-memory.dmp

      Filesize

      584KB

    • memory/868-0-0x000000007485E000-0x000000007485F000-memory.dmp

      Filesize

      4KB

    • memory/868-54-0x0000000074850000-0x0000000075000000-memory.dmp

      Filesize

      7.7MB

    • memory/868-1-0x0000000000870000-0x0000000000978000-memory.dmp

      Filesize

      1.0MB

    • memory/1340-65-0x0000000000400000-0x0000000000478000-memory.dmp

      Filesize

      480KB

    • memory/1340-66-0x0000000000400000-0x0000000000478000-memory.dmp

      Filesize

      480KB

    • memory/1340-64-0x0000000000400000-0x0000000000478000-memory.dmp

      Filesize

      480KB

    • memory/2216-75-0x0000000000400000-0x0000000000424000-memory.dmp

      Filesize

      144KB

    • memory/2216-73-0x0000000000400000-0x0000000000424000-memory.dmp

      Filesize

      144KB

    • memory/2216-74-0x0000000000400000-0x0000000000424000-memory.dmp

      Filesize

      144KB

    • memory/2504-67-0x0000000000400000-0x0000000000462000-memory.dmp

      Filesize

      392KB

    • memory/2504-68-0x0000000000400000-0x0000000000462000-memory.dmp

      Filesize

      392KB

    • memory/2504-69-0x0000000000400000-0x0000000000462000-memory.dmp

      Filesize

      392KB

    • memory/3596-106-0x0000000010000000-0x0000000010019000-memory.dmp

      Filesize

      100KB

    • memory/3596-53-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3596-55-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3596-50-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3596-127-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3596-128-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3596-58-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3596-59-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3596-61-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3596-60-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3596-63-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3596-48-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3596-47-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3596-108-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3596-135-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3596-103-0x0000000010000000-0x0000000010019000-memory.dmp

      Filesize

      100KB

    • memory/3596-136-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3596-107-0x0000000010000000-0x0000000010019000-memory.dmp

      Filesize

      100KB

    • memory/3596-143-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3596-144-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/4360-22-0x0000000004DB0000-0x0000000004DD2000-memory.dmp

      Filesize

      136KB

    • memory/4360-21-0x0000000074850000-0x0000000075000000-memory.dmp

      Filesize

      7.7MB

    • memory/4360-77-0x0000000073320000-0x000000007336C000-memory.dmp

      Filesize

      304KB

    • memory/4360-76-0x0000000006E10000-0x0000000006E42000-memory.dmp

      Filesize

      200KB

    • memory/4360-98-0x0000000006E50000-0x0000000006EF3000-memory.dmp

      Filesize

      652KB

    • memory/4360-122-0x0000000074850000-0x0000000075000000-memory.dmp

      Filesize

      7.7MB

    • memory/4360-96-0x0000000006DD0000-0x0000000006DEE000-memory.dmp

      Filesize

      120KB

    • memory/4360-25-0x0000000005820000-0x0000000005886000-memory.dmp

      Filesize

      408KB

    • memory/4360-26-0x0000000074850000-0x0000000075000000-memory.dmp

      Filesize

      7.7MB

    • memory/4360-24-0x0000000004FD0000-0x0000000005036000-memory.dmp

      Filesize

      408KB

    • memory/4360-27-0x0000000005890000-0x0000000005BE4000-memory.dmp

      Filesize

      3.3MB

    • memory/4360-28-0x0000000074850000-0x0000000075000000-memory.dmp

      Filesize

      7.7MB

    • memory/4360-109-0x00000000071F0000-0x00000000071FA000-memory.dmp

      Filesize

      40KB

    • memory/4360-57-0x0000000005EF0000-0x0000000005F3C000-memory.dmp

      Filesize

      304KB

    • memory/4360-111-0x0000000007380000-0x0000000007391000-memory.dmp

      Filesize

      68KB

    • memory/4360-56-0x0000000005E60000-0x0000000005E7E000-memory.dmp

      Filesize

      120KB

    • memory/4828-99-0x00000000080B0000-0x000000000872A000-memory.dmp

      Filesize

      6.5MB

    • memory/4828-114-0x0000000007DB0000-0x0000000007DCA000-memory.dmp

      Filesize

      104KB

    • memory/4828-115-0x0000000007D90000-0x0000000007D98000-memory.dmp

      Filesize

      32KB

    • memory/4828-19-0x00000000058E0000-0x0000000005F08000-memory.dmp

      Filesize

      6.2MB

    • memory/4828-17-0x0000000074850000-0x0000000075000000-memory.dmp

      Filesize

      7.7MB

    • memory/4828-113-0x0000000007CB0000-0x0000000007CC4000-memory.dmp

      Filesize

      80KB

    • memory/4828-121-0x0000000074850000-0x0000000075000000-memory.dmp

      Filesize

      7.7MB

    • memory/4828-112-0x0000000007CA0000-0x0000000007CAE000-memory.dmp

      Filesize

      56KB

    • memory/4828-110-0x0000000007CF0000-0x0000000007D86000-memory.dmp

      Filesize

      600KB

    • memory/4828-16-0x0000000002E10000-0x0000000002E46000-memory.dmp

      Filesize

      216KB

    • memory/4828-18-0x0000000074850000-0x0000000075000000-memory.dmp

      Filesize

      7.7MB

    • memory/4828-20-0x0000000074850000-0x0000000075000000-memory.dmp

      Filesize

      7.7MB

    • memory/4828-100-0x0000000007A70000-0x0000000007A8A000-memory.dmp

      Filesize

      104KB

    • memory/4828-87-0x0000000073320000-0x000000007336C000-memory.dmp

      Filesize

      304KB