Analysis

  • max time kernel
    150s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-09-2024 10:46

General

  • Target

    d00a443bf00b909b32fbd9894462283fca5788e28b96a9e729f43fc4f2ca585a.exe

  • Size

    915KB

  • MD5

    02d513fa3a4c04f1ffce97c25caccdff

  • SHA1

    853948f7ff1d69a293c4f4617185c24b9859e6dd

  • SHA256

    d00a443bf00b909b32fbd9894462283fca5788e28b96a9e729f43fc4f2ca585a

  • SHA512

    9a9b925e7d5acec5216ecb64f7352a8a27598106452984f08155f2bef640fe1ad93ff3a7869cacfaec2514641740c41fcc0e7e4f0172eaa7072c1c9c05087ab3

  • SSDEEP

    24576:SgW2J4Sl29MaW6EEJJQEtTShtxMwwW7yUVzmoeli:SgjJYSoxtuDxZlyUVzmo

Malware Config

Extracted

Family

remcos

Botnet

GeneralWire-Slaves

C2

milliondollar23.duckdns.org:3984

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-TWU43D

  • 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.

  • 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 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook accounts 1 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 7 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 10 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 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 51 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d00a443bf00b909b32fbd9894462283fca5788e28b96a9e729f43fc4f2ca585a.exe
    "C:\Users\Admin\AppData\Local\Temp\d00a443bf00b909b32fbd9894462283fca5788e28b96a9e729f43fc4f2ca585a.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:3320
    • 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\d00a443bf00b909b32fbd9894462283fca5788e28b96a9e729f43fc4f2ca585a.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2368
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\LdtceRaylJq.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3912
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\LdtceRaylJq" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC7F3.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:4408
    • C:\Users\Admin\AppData\Local\Temp\d00a443bf00b909b32fbd9894462283fca5788e28b96a9e729f43fc4f2ca585a.exe
      "C:\Users\Admin\AppData\Local\Temp\d00a443bf00b909b32fbd9894462283fca5788e28b96a9e729f43fc4f2ca585a.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:836
      • C:\Users\Admin\AppData\Local\Temp\d00a443bf00b909b32fbd9894462283fca5788e28b96a9e729f43fc4f2ca585a.exe
        C:\Users\Admin\AppData\Local\Temp\d00a443bf00b909b32fbd9894462283fca5788e28b96a9e729f43fc4f2ca585a.exe /stext "C:\Users\Admin\AppData\Local\Temp\dpbrmjbheed"
        3⤵
        • Suspicious use of UnmapMainImage
        PID:3904
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3904 -s 12
          4⤵
          • Program crash
          PID:960
      • C:\Users\Admin\AppData\Local\Temp\d00a443bf00b909b32fbd9894462283fca5788e28b96a9e729f43fc4f2ca585a.exe
        C:\Users\Admin\AppData\Local\Temp\d00a443bf00b909b32fbd9894462283fca5788e28b96a9e729f43fc4f2ca585a.exe /stext "C:\Users\Admin\AppData\Local\Temp\fjgknbljsmvfpc"
        3⤵
          PID:2572
        • C:\Users\Admin\AppData\Local\Temp\d00a443bf00b909b32fbd9894462283fca5788e28b96a9e729f43fc4f2ca585a.exe
          C:\Users\Admin\AppData\Local\Temp\d00a443bf00b909b32fbd9894462283fca5788e28b96a9e729f43fc4f2ca585a.exe /stext "C:\Users\Admin\AppData\Local\Temp\fjgknbljsmvfpc"
          3⤵
          • Accesses Microsoft Outlook accounts
          • System Location Discovery: System Language Discovery
          PID:3416
        • C:\Users\Admin\AppData\Local\Temp\d00a443bf00b909b32fbd9894462283fca5788e28b96a9e729f43fc4f2ca585a.exe
          C:\Users\Admin\AppData\Local\Temp\d00a443bf00b909b32fbd9894462283fca5788e28b96a9e729f43fc4f2ca585a.exe /stext "C:\Users\Admin\AppData\Local\Temp\qeuunuwdgunjaiueb"
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2632
        • C:\Users\Admin\AppData\Local\Temp\d00a443bf00b909b32fbd9894462283fca5788e28b96a9e729f43fc4f2ca585a.exe
          C:\Users\Admin\AppData\Local\Temp\d00a443bf00b909b32fbd9894462283fca5788e28b96a9e729f43fc4f2ca585a.exe /stext "C:\Users\Admin\AppData\Local\Temp\kthuks"
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          PID:2164
        • C:\Users\Admin\AppData\Local\Temp\d00a443bf00b909b32fbd9894462283fca5788e28b96a9e729f43fc4f2ca585a.exe
          C:\Users\Admin\AppData\Local\Temp\d00a443bf00b909b32fbd9894462283fca5788e28b96a9e729f43fc4f2ca585a.exe /stext "C:\Users\Admin\AppData\Local\Temp\vvvelltqi"
          3⤵
          • Accesses Microsoft Outlook accounts
          • System Location Discovery: System Language Discovery
          PID:2460
        • C:\Users\Admin\AppData\Local\Temp\d00a443bf00b909b32fbd9894462283fca5788e28b96a9e729f43fc4f2ca585a.exe
          C:\Users\Admin\AppData\Local\Temp\d00a443bf00b909b32fbd9894462283fca5788e28b96a9e729f43fc4f2ca585a.exe /stext "C:\Users\Admin\AppData\Local\Temp\xpaxldejehcu"
          3⤵
            PID:5036
          • C:\Users\Admin\AppData\Local\Temp\d00a443bf00b909b32fbd9894462283fca5788e28b96a9e729f43fc4f2ca585a.exe
            C:\Users\Admin\AppData\Local\Temp\d00a443bf00b909b32fbd9894462283fca5788e28b96a9e729f43fc4f2ca585a.exe /stext "C:\Users\Admin\AppData\Local\Temp\xpaxldejehcu"
            3⤵
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:1436
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3904 -ip 3904
        1⤵
          PID:4584

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\ProgramData\remcos\logs.dat

          Filesize

          144B

          MD5

          20a9b96f8293c71db4c635591e87d0be

          SHA1

          ddb31b2f74720e9318401747f68934a1828fd625

          SHA256

          7a82e42af291a0abe63fcd7e0b10ade812d425db191ddade388ba9ce521459c7

          SHA512

          72844baa5f5ca795a9b730c7ded7766fb0ad98543f9aed1bbd5ea315444394233efa2f9f7bc07c0423197ef07a6d68e5a13cceb34cd0186b370611dc10fddb85

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

          Filesize

          2KB

          MD5

          3d086a433708053f9bf9523e1d87a4e8

          SHA1

          b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28

          SHA256

          6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69

          SHA512

          931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd

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

          Filesize

          18KB

          MD5

          2311798cca99b100c4110d5f669371f5

          SHA1

          19d58ca22752b4c7dd48e79ad6db09abcf93a622

          SHA256

          12511284a25d1ea679421d3dd916779b4eab965a5b1b04b61b52b78837938327

          SHA512

          8fb143702fb5c733cad48d2dfbec500a9130746adf20da40aaa4d17da58fd03898e9dc74179c2fd380d8a250c844f2394320d09ce5ec1b09ef0417d0e17afc48

        • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_rakvwi3r.3gs.ps1

          Filesize

          60B

          MD5

          d17fe0a3f47be24a6453e9ef58c94641

          SHA1

          6ab83620379fc69f80c0242105ddffd7d98d5d9d

          SHA256

          96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

          SHA512

          5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

          Filesize

          4KB

          MD5

          16f4f7c4051f4bbdaa93a1ca80690065

          SHA1

          750cacbdd2d089a88119374560d6ac004954e90e

          SHA256

          6c4559e4413cccaeab73cad48ffd804506c95566e4d6a3f5ae64017a33ea6ec2

          SHA512

          cb0f68d393ad03a5c802a2978ff7b12e20911bac5e27200c2df16d5d3f63dfc2387c0cd1a9075d8e4ba9ae804a6b61225575e2f42b3ef024e863d5b172417964

        • C:\Users\Admin\AppData\Local\Temp\tmpC7F3.tmp

          Filesize

          1KB

          MD5

          b9a11e760efcfb73821db0dc33736a25

          SHA1

          3f8e8bd0d2d5542200aa79f4f0f7d70f744eb9a4

          SHA256

          7eb53d5e0f5843dfb7d3b8c99e03d2265f9a29016d41ba2dc7d633d448a7f6a6

          SHA512

          ad52375ee7ca5956a695a153679328bff1b4af7d9396262b9a79de54836071698b0832ca24f41685ce51af0d2ea51ed8e91eb58882456e6c83eedee5aaf1ffb1

        • memory/836-141-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/836-104-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/836-110-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/836-149-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/836-138-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/836-150-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/836-157-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/836-99-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/836-100-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/836-101-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/836-158-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/836-136-0x0000000010000000-0x0000000010019000-memory.dmp

          Filesize

          100KB

        • memory/836-102-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/836-142-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/836-137-0x0000000010000000-0x0000000010019000-memory.dmp

          Filesize

          100KB

        • memory/836-45-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/836-53-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/836-50-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/836-133-0x0000000010000000-0x0000000010019000-memory.dmp

          Filesize

          100KB

        • memory/836-34-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/836-165-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/836-103-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/836-30-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/836-27-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/836-107-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/836-109-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/836-166-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2164-121-0x0000000000400000-0x0000000000478000-memory.dmp

          Filesize

          480KB

        • memory/2164-123-0x0000000000400000-0x0000000000478000-memory.dmp

          Filesize

          480KB

        • memory/2368-70-0x000000006FC20000-0x000000006FC6C000-memory.dmp

          Filesize

          304KB

        • memory/2368-96-0x0000000075290000-0x0000000075A40000-memory.dmp

          Filesize

          7.7MB

        • memory/2368-57-0x0000000006DD0000-0x0000000006E1C000-memory.dmp

          Filesize

          304KB

        • memory/2368-22-0x00000000059C0000-0x00000000059E2000-memory.dmp

          Filesize

          136KB

        • memory/2368-23-0x0000000006090000-0x00000000060F6000-memory.dmp

          Filesize

          408KB

        • memory/2368-82-0x0000000007B90000-0x0000000007BAA000-memory.dmp

          Filesize

          104KB

        • memory/2368-55-0x0000000006850000-0x000000000686E000-memory.dmp

          Filesize

          120KB

        • memory/2368-26-0x0000000006270000-0x00000000065C4000-memory.dmp

          Filesize

          3.3MB

        • memory/2368-24-0x0000000006200000-0x0000000006266000-memory.dmp

          Filesize

          408KB

        • memory/2368-19-0x0000000075290000-0x0000000075A40000-memory.dmp

          Filesize

          7.7MB

        • memory/2368-16-0x0000000075290000-0x0000000075A40000-memory.dmp

          Filesize

          7.7MB

        • memory/2368-88-0x0000000007ED0000-0x0000000007EEA000-memory.dmp

          Filesize

          104KB

        • memory/2368-89-0x0000000007EB0000-0x0000000007EB8000-memory.dmp

          Filesize

          32KB

        • memory/2368-18-0x0000000075290000-0x0000000075A40000-memory.dmp

          Filesize

          7.7MB

        • memory/2368-17-0x00000000059F0000-0x0000000006018000-memory.dmp

          Filesize

          6.2MB

        • memory/2368-15-0x00000000052D0000-0x0000000005306000-memory.dmp

          Filesize

          216KB

        • memory/2632-116-0x0000000000400000-0x0000000000424000-memory.dmp

          Filesize

          144KB

        • memory/2632-113-0x0000000000400000-0x0000000000424000-memory.dmp

          Filesize

          144KB

        • memory/2632-115-0x0000000000400000-0x0000000000424000-memory.dmp

          Filesize

          144KB

        • memory/3320-8-0x0000000075290000-0x0000000075A40000-memory.dmp

          Filesize

          7.7MB

        • memory/3320-0-0x000000007529E000-0x000000007529F000-memory.dmp

          Filesize

          4KB

        • memory/3320-5-0x0000000075290000-0x0000000075A40000-memory.dmp

          Filesize

          7.7MB

        • memory/3320-4-0x0000000002D70000-0x0000000002D7A000-memory.dmp

          Filesize

          40KB

        • memory/3320-6-0x0000000005490000-0x00000000054A2000-memory.dmp

          Filesize

          72KB

        • memory/3320-7-0x000000007529E000-0x000000007529F000-memory.dmp

          Filesize

          4KB

        • memory/3320-56-0x0000000075290000-0x0000000075A40000-memory.dmp

          Filesize

          7.7MB

        • memory/3320-10-0x00000000096A0000-0x000000000973C000-memory.dmp

          Filesize

          624KB

        • memory/3320-9-0x0000000006F80000-0x0000000007040000-memory.dmp

          Filesize

          768KB

        • memory/3320-2-0x0000000005880000-0x0000000005E24000-memory.dmp

          Filesize

          5.6MB

        • memory/3320-3-0x00000000052D0000-0x0000000005362000-memory.dmp

          Filesize

          584KB

        • memory/3320-1-0x0000000000830000-0x000000000091A000-memory.dmp

          Filesize

          936KB

        • memory/3416-117-0x0000000000400000-0x0000000000462000-memory.dmp

          Filesize

          392KB

        • memory/3416-114-0x0000000000400000-0x0000000000462000-memory.dmp

          Filesize

          392KB

        • memory/3416-112-0x0000000000400000-0x0000000000462000-memory.dmp

          Filesize

          392KB

        • memory/3904-111-0x0000000000400000-0x0000000000478000-memory.dmp

          Filesize

          480KB

        • memory/3912-58-0x0000000006A70000-0x0000000006AA2000-memory.dmp

          Filesize

          200KB

        • memory/3912-42-0x0000000075290000-0x0000000075A40000-memory.dmp

          Filesize

          7.7MB

        • memory/3912-25-0x0000000075290000-0x0000000075A40000-memory.dmp

          Filesize

          7.7MB

        • memory/3912-21-0x0000000075290000-0x0000000075A40000-memory.dmp

          Filesize

          7.7MB

        • memory/3912-59-0x000000006FC20000-0x000000006FC6C000-memory.dmp

          Filesize

          304KB

        • memory/3912-69-0x0000000006AB0000-0x0000000006ACE000-memory.dmp

          Filesize

          120KB

        • memory/3912-92-0x0000000075290000-0x0000000075A40000-memory.dmp

          Filesize

          7.7MB

        • memory/3912-80-0x0000000006AE0000-0x0000000006B83000-memory.dmp

          Filesize

          652KB

        • memory/3912-81-0x0000000007450000-0x0000000007ACA000-memory.dmp

          Filesize

          6.5MB

        • memory/3912-83-0x0000000006E80000-0x0000000006E8A000-memory.dmp

          Filesize

          40KB

        • memory/3912-84-0x0000000007090000-0x0000000007126000-memory.dmp

          Filesize

          600KB

        • memory/3912-85-0x0000000007010000-0x0000000007021000-memory.dmp

          Filesize

          68KB

        • memory/3912-86-0x0000000007040000-0x000000000704E000-memory.dmp

          Filesize

          56KB

        • memory/3912-87-0x0000000007050000-0x0000000007064000-memory.dmp

          Filesize

          80KB