Analysis

  • max time kernel
    149s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-09-2024 02:42

General

  • Target

    ff67f46cb0b8c93cc038c969376a92b04ab3809b0efd52f99bdfbbd9a991cc87.exe

  • Size

    1.1MB

  • MD5

    311148c65ef0cadb803bccc2cf922fee

  • SHA1

    d70c32206a52470e3b622984e7fb6ab7668c5919

  • SHA256

    ff67f46cb0b8c93cc038c969376a92b04ab3809b0efd52f99bdfbbd9a991cc87

  • SHA512

    8a998d9e89a53b65ef1d5a996f5540d0c0ba7f964af274ef5991dac3c4fd6c3eb4b89f5bc54449b797ffede1f57bd8d4604f4df3cd46fadb6dc94391713208cc

  • SSDEEP

    24576:W4rAZ6dcBjZFsPgl8bIDnOjkO4/JHuNPzb2IFA:W4MwMwbIKkOIJHIPw

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

hiddenrmcnew.duckdns.org:7839

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-PW8G0U

  • 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 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 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ff67f46cb0b8c93cc038c969376a92b04ab3809b0efd52f99bdfbbd9a991cc87.exe
    "C:\Users\Admin\AppData\Local\Temp\ff67f46cb0b8c93cc038c969376a92b04ab3809b0efd52f99bdfbbd9a991cc87.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:4088
    • 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\ff67f46cb0b8c93cc038c969376a92b04ab3809b0efd52f99bdfbbd9a991cc87.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:996
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\wUtVQHiucCbXP.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3256
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\wUtVQHiucCbXP" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE03E.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2988
    • C:\Users\Admin\AppData\Local\Temp\ff67f46cb0b8c93cc038c969376a92b04ab3809b0efd52f99bdfbbd9a991cc87.exe
      "C:\Users\Admin\AppData\Local\Temp\ff67f46cb0b8c93cc038c969376a92b04ab3809b0efd52f99bdfbbd9a991cc87.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:2392
      • C:\Users\Admin\AppData\Local\Temp\ff67f46cb0b8c93cc038c969376a92b04ab3809b0efd52f99bdfbbd9a991cc87.exe
        C:\Users\Admin\AppData\Local\Temp\ff67f46cb0b8c93cc038c969376a92b04ab3809b0efd52f99bdfbbd9a991cc87.exe /stext "C:\Users\Admin\AppData\Local\Temp\xmrhnpdmmtrariuikzn"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        PID:1452
      • C:\Users\Admin\AppData\Local\Temp\ff67f46cb0b8c93cc038c969376a92b04ab3809b0efd52f99bdfbbd9a991cc87.exe
        C:\Users\Admin\AppData\Local\Temp\ff67f46cb0b8c93cc038c969376a92b04ab3809b0efd52f99bdfbbd9a991cc87.exe /stext "C:\Users\Admin\AppData\Local\Temp\howaoaoozbjmtojuujzpfb"
        3⤵
        • Accesses Microsoft Outlook accounts
        • System Location Discovery: System Language Discovery
        PID:868
      • C:\Users\Admin\AppData\Local\Temp\ff67f46cb0b8c93cc038c969376a92b04ab3809b0efd52f99bdfbbd9a991cc87.exe
        C:\Users\Admin\AppData\Local\Temp\ff67f46cb0b8c93cc038c969376a92b04ab3809b0efd52f99bdfbbd9a991cc87.exe /stext "C:\Users\Admin\AppData\Local\Temp\sjjsoszhnjbrddfyduuiqgdvo"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1624

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

    7602fb129b1d4ab6a6381c60a7bb2bf5

    SHA1

    b4ec2825b2667dffd8a74fa7896601c09af0cc1c

    SHA256

    24e2523fd35d099b49f81706f2dea65cb62cd0a53168e6887dff84f56ca5035a

    SHA512

    9a2c23cd993827255f524fbc56b3d1904dd81bc6852854b84bf62e4295e4c79f9b47e818706ed3ea47f2af92de863628380e3a88f94e5b31201f154ce20d2b1f

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_0bog5geb.yph.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmpE03E.tmp

    Filesize

    1KB

    MD5

    bfcdb5513b96953273fcf7db1d0e616f

    SHA1

    ab66c794bc0164f5c19e3cf3dc512106872c78ec

    SHA256

    31c289685c9514fa8432b28ece991a82571ab9c5945853f2542905894a2fa8ce

    SHA512

    b5370c9552ee432cda06f7d4baa56ba9cfd79d3f7bd36d5e3c67c4d160808f352ba10587e967e4ffec597b98d105e6bf57b4f284dd0a80c0c1063e019afe3057

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

    Filesize

    4KB

    MD5

    c7ac5a21cac5bd5580a6e28112212613

    SHA1

    0a256177c387053fec680e599bcb63729a16c161

    SHA256

    89e0e7dc8ad418f8613610b71d0c140247e26a5f9a453ee255b1467fb80f15ff

    SHA512

    753675a75b643132e50175d67589a3952cb5154a7e51c11883b2e28bf4fe406afbaed88e61575cc114156e41ed5c587b0f76845e6d20ddf922e775bfff3f0b43

  • memory/868-102-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/868-104-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/868-100-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/996-94-0x00000000751A0000-0x0000000075950000-memory.dmp

    Filesize

    7.7MB

  • memory/996-69-0x000000006FB30000-0x000000006FB7C000-memory.dmp

    Filesize

    304KB

  • memory/996-32-0x0000000005970000-0x0000000005CC4000-memory.dmp

    Filesize

    3.3MB

  • memory/996-15-0x0000000002670000-0x00000000026A6000-memory.dmp

    Filesize

    216KB

  • memory/996-16-0x0000000005090000-0x00000000056B8000-memory.dmp

    Filesize

    6.2MB

  • memory/996-17-0x00000000751A0000-0x0000000075950000-memory.dmp

    Filesize

    7.7MB

  • memory/996-18-0x00000000751A0000-0x0000000075950000-memory.dmp

    Filesize

    7.7MB

  • memory/996-25-0x0000000005800000-0x0000000005866000-memory.dmp

    Filesize

    408KB

  • memory/996-24-0x0000000005790000-0x00000000057F6000-memory.dmp

    Filesize

    408KB

  • memory/996-21-0x00000000751A0000-0x0000000075950000-memory.dmp

    Filesize

    7.7MB

  • memory/996-23-0x00000000056F0000-0x0000000005712000-memory.dmp

    Filesize

    136KB

  • memory/1452-103-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/1452-99-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/1452-101-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/1624-110-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/1624-106-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/1624-105-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/2392-66-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2392-120-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2392-46-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2392-125-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2392-124-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2392-53-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2392-123-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2392-122-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2392-48-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2392-121-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2392-55-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2392-47-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2392-119-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2392-79-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2392-80-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2392-118-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2392-113-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/2392-116-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/2392-117-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/2392-85-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2392-126-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3256-90-0x0000000007F20000-0x0000000007F3A000-memory.dmp

    Filesize

    104KB

  • memory/3256-56-0x000000006FB30000-0x000000006FB7C000-memory.dmp

    Filesize

    304KB

  • memory/3256-89-0x0000000007E20000-0x0000000007E34000-memory.dmp

    Filesize

    80KB

  • memory/3256-26-0x00000000751A0000-0x0000000075950000-memory.dmp

    Filesize

    7.7MB

  • memory/3256-91-0x0000000007F00000-0x0000000007F08000-memory.dmp

    Filesize

    32KB

  • memory/3256-20-0x00000000751A0000-0x0000000075950000-memory.dmp

    Filesize

    7.7MB

  • memory/3256-49-0x00000000068C0000-0x00000000068DE000-memory.dmp

    Filesize

    120KB

  • memory/3256-51-0x0000000006960000-0x00000000069AC000-memory.dmp

    Filesize

    304KB

  • memory/3256-98-0x00000000751A0000-0x0000000075950000-memory.dmp

    Filesize

    7.7MB

  • memory/3256-82-0x0000000007BE0000-0x0000000007BFA000-memory.dmp

    Filesize

    104KB

  • memory/3256-67-0x0000000006E80000-0x0000000006E9E000-memory.dmp

    Filesize

    120KB

  • memory/3256-54-0x0000000006EC0000-0x0000000006EF2000-memory.dmp

    Filesize

    200KB

  • memory/3256-87-0x0000000007DE0000-0x0000000007DF1000-memory.dmp

    Filesize

    68KB

  • memory/3256-86-0x0000000007E60000-0x0000000007EF6000-memory.dmp

    Filesize

    600KB

  • memory/3256-68-0x0000000007AB0000-0x0000000007B53000-memory.dmp

    Filesize

    652KB

  • memory/3256-88-0x0000000007E10000-0x0000000007E1E000-memory.dmp

    Filesize

    56KB

  • memory/3256-19-0x00000000751A0000-0x0000000075950000-memory.dmp

    Filesize

    7.7MB

  • memory/3256-81-0x0000000008220000-0x000000000889A000-memory.dmp

    Filesize

    6.5MB

  • memory/3256-83-0x0000000007C50000-0x0000000007C5A000-memory.dmp

    Filesize

    40KB

  • memory/4088-4-0x00000000751A0000-0x0000000075950000-memory.dmp

    Filesize

    7.7MB

  • memory/4088-2-0x0000000005C40000-0x00000000061E4000-memory.dmp

    Filesize

    5.6MB

  • memory/4088-3-0x0000000005750000-0x00000000057E2000-memory.dmp

    Filesize

    584KB

  • memory/4088-1-0x0000000000D90000-0x0000000000EA2000-memory.dmp

    Filesize

    1.1MB

  • memory/4088-5-0x0000000005810000-0x000000000581A000-memory.dmp

    Filesize

    40KB

  • memory/4088-0-0x00000000751AE000-0x00000000751AF000-memory.dmp

    Filesize

    4KB

  • memory/4088-6-0x0000000009070000-0x0000000009082000-memory.dmp

    Filesize

    72KB

  • memory/4088-7-0x00000000751AE000-0x00000000751AF000-memory.dmp

    Filesize

    4KB

  • memory/4088-52-0x00000000751A0000-0x0000000075950000-memory.dmp

    Filesize

    7.7MB

  • memory/4088-8-0x00000000751A0000-0x0000000075950000-memory.dmp

    Filesize

    7.7MB

  • memory/4088-9-0x0000000009530000-0x00000000095F0000-memory.dmp

    Filesize

    768KB

  • memory/4088-10-0x000000000BDC0000-0x000000000BE5C000-memory.dmp

    Filesize

    624KB