Analysis

  • max time kernel
    149s
  • 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
    29-08-2024 01:00

General

  • Target

    86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe

  • Size

    928KB

  • MD5

    04d4d4d83e1601d220f83f09ae16cd79

  • SHA1

    4f0a7d8060399a7ae5029690bdee2bf3b2e3e395

  • SHA256

    86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8

  • SHA512

    87747374bd1c72c9d33d2af9e7456617c95e6c100788f16123bf15cb1c6748a13ad1ac9b5a967553fdf668ea226033a741c08f45febc2130a7e50ccabe69333c

  • SSDEEP

    24576:bhdtlx9EP2aKUQ6/FfCH1bGl4rg5YWNexNBpqod:bhdrY+aPQiFgDWcxNzqi

Malware Config

Extracted

Family

remcos

Botnet

AUG 26

C2

sungito2.ddns.net:6509

154.216.19.222:5532

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-LXAZN2

  • 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 1 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 6 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 27 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe
    "C:\Users\Admin\AppData\Local\Temp\86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2876
    • 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\86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1628
    • C:\Users\Admin\AppData\Local\Temp\86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe
      "C:\Users\Admin\AppData\Local\Temp\86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1496
      • C:\Users\Admin\AppData\Local\Temp\86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe
        C:\Users\Admin\AppData\Local\Temp\86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe /stext "C:\Users\Admin\AppData\Local\Temp\lgpcnnanwpeakexvwzjkrzbbexcxbub"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        PID:4352
      • C:\Users\Admin\AppData\Local\Temp\86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe
        C:\Users\Admin\AppData\Local\Temp\86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe /stext "C:\Users\Admin\AppData\Local\Temp\vavn"
        3⤵
        • Accesses Microsoft Outlook accounts
        • System Location Discovery: System Language Discovery
        PID:3980
      • C:\Users\Admin\AppData\Local\Temp\86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe
        C:\Users\Admin\AppData\Local\Temp\86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe /stext "C:\Users\Admin\AppData\Local\Temp\ycafoxd"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:936

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\remcos\logs.dat

    Filesize

    144B

    MD5

    4c92d264e5fc8ea8282fac771336fbbc

    SHA1

    e71734e76654e527f560cf90b5279e8324d8c363

    SHA256

    f16a5bf7cdee1addd2ed3f92065a2431c5accc2d0e700b1ade8d9d9942fe0049

    SHA512

    a98188c98e294d53415d37ae2f792c42fa0f5960cb204a958b42152ebd1549d45e0806d14d74c89b7ef40e4b279d2f0be5d47f22f8559f212680e8f165405dcc

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_mp0fqwlt.2pi.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

    Filesize

    4KB

    MD5

    1891919175c888ce82e9bd8a047b01ad

    SHA1

    502a6892a5d27ecb791ac5aa6d8586944f540453

    SHA256

    a6c43b4e4b8681cf0ef56c49c730fa77e34dc82db0260253a3ba75039030b9ec

    SHA512

    8bb940050b1abf6c27db133ed446f41e108f670f361ed5102408832ce33d9b87cd0880723441f1632292eeeb0a319c4e0fac0ea659eb55ebe1130cc3e6c776a3

  • memory/936-70-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/936-69-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/936-72-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/1496-102-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1496-85-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/1496-45-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1496-111-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1496-96-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1496-11-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1496-12-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1496-14-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1496-15-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1496-19-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1496-16-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1496-87-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1496-86-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/1496-103-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1496-110-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1496-82-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/1496-119-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1496-26-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1496-118-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1496-126-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1496-49-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1496-127-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1496-48-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1496-47-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1496-44-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1496-42-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1496-43-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1628-22-0x00000000024D0000-0x0000000002506000-memory.dmp

    Filesize

    216KB

  • memory/1628-91-0x0000000007420000-0x0000000007428000-memory.dmp

    Filesize

    32KB

  • memory/1628-40-0x0000000005DC0000-0x0000000005DDE000-memory.dmp

    Filesize

    120KB

  • memory/1628-39-0x00000000059A0000-0x0000000005CF4000-memory.dmp

    Filesize

    3.3MB

  • memory/1628-28-0x0000000005590000-0x00000000055F6000-memory.dmp

    Filesize

    408KB

  • memory/1628-94-0x0000000074AE0000-0x0000000075290000-memory.dmp

    Filesize

    7.7MB

  • memory/1628-41-0x0000000005EA0000-0x0000000005EEC000-memory.dmp

    Filesize

    304KB

  • memory/1628-90-0x0000000007440000-0x000000000745A000-memory.dmp

    Filesize

    104KB

  • memory/1628-89-0x0000000007340000-0x0000000007354000-memory.dmp

    Filesize

    80KB

  • memory/1628-88-0x0000000007330000-0x000000000733E000-memory.dmp

    Filesize

    56KB

  • memory/1628-74-0x0000000006FD0000-0x0000000007073000-memory.dmp

    Filesize

    652KB

  • memory/1628-21-0x0000000074AEE000-0x0000000074AEF000-memory.dmp

    Filesize

    4KB

  • memory/1628-29-0x00000000057B0000-0x0000000005816000-memory.dmp

    Filesize

    408KB

  • memory/1628-27-0x0000000004D20000-0x0000000004D42000-memory.dmp

    Filesize

    136KB

  • memory/1628-24-0x0000000074AE0000-0x0000000075290000-memory.dmp

    Filesize

    7.7MB

  • memory/1628-65-0x0000000006FB0000-0x0000000006FCE000-memory.dmp

    Filesize

    120KB

  • memory/1628-54-0x0000000071310000-0x000000007135C000-memory.dmp

    Filesize

    304KB

  • memory/1628-53-0x0000000006390000-0x00000000063C2000-memory.dmp

    Filesize

    200KB

  • memory/1628-75-0x0000000007750000-0x0000000007DCA000-memory.dmp

    Filesize

    6.5MB

  • memory/1628-76-0x0000000007100000-0x000000000711A000-memory.dmp

    Filesize

    104KB

  • memory/1628-77-0x0000000007180000-0x000000000718A000-memory.dmp

    Filesize

    40KB

  • memory/1628-79-0x0000000007380000-0x0000000007416000-memory.dmp

    Filesize

    600KB

  • memory/1628-80-0x0000000007300000-0x0000000007311000-memory.dmp

    Filesize

    68KB

  • memory/1628-25-0x0000000004EF0000-0x0000000005518000-memory.dmp

    Filesize

    6.2MB

  • memory/1628-23-0x0000000074AE0000-0x0000000075290000-memory.dmp

    Filesize

    7.7MB

  • memory/2876-6-0x0000000005140000-0x0000000005158000-memory.dmp

    Filesize

    96KB

  • memory/2876-0-0x0000000074AEE000-0x0000000074AEF000-memory.dmp

    Filesize

    4KB

  • memory/2876-9-0x0000000005FE0000-0x00000000060A0000-memory.dmp

    Filesize

    768KB

  • memory/2876-8-0x0000000074AE0000-0x0000000075290000-memory.dmp

    Filesize

    7.7MB

  • memory/2876-10-0x00000000062A0000-0x000000000633C000-memory.dmp

    Filesize

    624KB

  • memory/2876-2-0x0000000005300000-0x00000000058A4000-memory.dmp

    Filesize

    5.6MB

  • memory/2876-3-0x0000000004D50000-0x0000000004DE2000-memory.dmp

    Filesize

    584KB

  • memory/2876-4-0x0000000074AE0000-0x0000000075290000-memory.dmp

    Filesize

    7.7MB

  • memory/2876-1-0x0000000000280000-0x000000000036A000-memory.dmp

    Filesize

    936KB

  • memory/2876-20-0x0000000074AE0000-0x0000000075290000-memory.dmp

    Filesize

    7.7MB

  • memory/2876-5-0x0000000004E10000-0x0000000004E1A000-memory.dmp

    Filesize

    40KB

  • memory/2876-7-0x0000000074AEE000-0x0000000074AEF000-memory.dmp

    Filesize

    4KB

  • memory/3980-71-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/3980-73-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/3980-56-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/4352-50-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/4352-51-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/4352-52-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB