Analysis

  • max time kernel
    148s
  • 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
    06-09-2024 01:19

General

  • Target

    5fe247828f3087cbede022c3db3c57ac8c0bb0138ea8e3424021afc4e314d076.exe

  • Size

    1.2MB

  • MD5

    351186b9b345b2fa94ab174c4c19b14f

  • SHA1

    a736ed0ceb2cff740b9f1a6e7a0ce0efbf685fc5

  • SHA256

    5fe247828f3087cbede022c3db3c57ac8c0bb0138ea8e3424021afc4e314d076

  • SHA512

    8a105558ba42004e9aec1d21807144a8814241f9cc130367bfb6bd6d815accc5de21bec102e25acabc6818c29917061f2e1040651fa798fcaee85a9198911fcc

  • SSDEEP

    24576:pUobyhBVHw9S2uk4zCbu26CKVHT38VqnlaV7pNI3xL35yd:iF9D2uk42bb1KVH78VqQbIt3y

Malware Config

Extracted

Family

remcos

Botnet

SEPT 5

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-WJKXMP

  • 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 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5fe247828f3087cbede022c3db3c57ac8c0bb0138ea8e3424021afc4e314d076.exe
    "C:\Users\Admin\AppData\Local\Temp\5fe247828f3087cbede022c3db3c57ac8c0bb0138ea8e3424021afc4e314d076.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2860
    • 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\5fe247828f3087cbede022c3db3c57ac8c0bb0138ea8e3424021afc4e314d076.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3372
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\dYDLGuPwXKp.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:536
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\dYDLGuPwXKp" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD6C8.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:412
    • C:\Users\Admin\AppData\Local\Temp\5fe247828f3087cbede022c3db3c57ac8c0bb0138ea8e3424021afc4e314d076.exe
      "C:\Users\Admin\AppData\Local\Temp\5fe247828f3087cbede022c3db3c57ac8c0bb0138ea8e3424021afc4e314d076.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2132
      • C:\Users\Admin\AppData\Local\Temp\5fe247828f3087cbede022c3db3c57ac8c0bb0138ea8e3424021afc4e314d076.exe
        C:\Users\Admin\AppData\Local\Temp\5fe247828f3087cbede022c3db3c57ac8c0bb0138ea8e3424021afc4e314d076.exe /stext "C:\Users\Admin\AppData\Local\Temp\wivjaqumtzbiafitptetftpgjiyyymrcy"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        PID:2852
      • C:\Users\Admin\AppData\Local\Temp\5fe247828f3087cbede022c3db3c57ac8c0bb0138ea8e3424021afc4e314d076.exe
        C:\Users\Admin\AppData\Local\Temp\5fe247828f3087cbede022c3db3c57ac8c0bb0138ea8e3424021afc4e314d076.exe /stext "C:\Users\Admin\AppData\Local\Temp\hcausi"
        3⤵
        • Accesses Microsoft Outlook accounts
        • System Location Discovery: System Language Discovery
        PID:2196
      • C:\Users\Admin\AppData\Local\Temp\5fe247828f3087cbede022c3db3c57ac8c0bb0138ea8e3424021afc4e314d076.exe
        C:\Users\Admin\AppData\Local\Temp\5fe247828f3087cbede022c3db3c57ac8c0bb0138ea8e3424021afc4e314d076.exe /stext "C:\Users\Admin\AppData\Local\Temp\jfnmtbphv"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3544

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\remcos\logs.dat

    Filesize

    144B

    MD5

    707a1b893e1d059e19e95ce524ed24d3

    SHA1

    fcec32fcd6eddf238ee271474a627eb7b472c16e

    SHA256

    fd4e0e79375325a8c859a82b2b4d2dd0ca134ef21960268a5409319dfc4eb3af

    SHA512

    f8f183542dc1227270d22d771f64ede31340a01c7ae94a020309e0d2af703e23902ec464fe044bdd336f87794708956be2e4eeb943741a2d6d10e2fedbb37f67

  • 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

    ce11de7ff2df089a4d74b944e5258e1f

    SHA1

    98834978bb399ad9a4c1c2ac4986419c6698ff76

    SHA256

    512d4b42f9d6c61cc298514873b9786d33a8a7c02561f11bd5fce575cbcb085e

    SHA512

    feb13078e2d3aa6caef74c3609d0fa6366c6c97eec7a1c040332cbeb3b48531ea777aac28f7e194bc5b44302f76127ed749169fe4f1a1789ecbf8e1a22ad6304

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_hyfijsj3.y40.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmpD6C8.tmp

    Filesize

    1KB

    MD5

    dd889ccb9e16bd61115f0eb4f87df555

    SHA1

    1bf672ba3c661f59b0888d739a97efe60de05601

    SHA256

    0b7bca512808aac46fdf56328216b55762f142c2128b094288b6da4d66f30540

    SHA512

    356b0225264324d890f102c3fdd6b1d6357644ac3c34a497d95dedf7d2391759ba13d28e430a10f4ddc4f4ceb6b2cb8d28760eb265d6610bdae694bf25d9f2f8

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

    Filesize

    4KB

    MD5

    faaa2b16df1bfc1a3792faaa35786349

    SHA1

    359534a59d7c5139ae205c24533ba60afdfb9f3f

    SHA256

    3586befc3b8b4da223e2ee0dcb00965ba5c0a205c14f2acefdeec7e46efddd5a

    SHA512

    2fbc79cace52a58e69ab983d034bb41ebb2496f767e18e5e4b31eefc4447c935d8614f744c71302e459350a05562fadc4c2355d76638b595e7cff1bb3d1618db

  • memory/536-18-0x0000000074C40000-0x00000000753F0000-memory.dmp

    Filesize

    7.7MB

  • memory/536-112-0x00000000078D0000-0x00000000078E1000-memory.dmp

    Filesize

    68KB

  • memory/536-25-0x0000000074C40000-0x00000000753F0000-memory.dmp

    Filesize

    7.7MB

  • memory/536-123-0x0000000074C40000-0x00000000753F0000-memory.dmp

    Filesize

    7.7MB

  • memory/536-64-0x0000000006440000-0x000000000648C000-memory.dmp

    Filesize

    304KB

  • memory/536-114-0x0000000007910000-0x0000000007924000-memory.dmp

    Filesize

    80KB

  • memory/536-100-0x0000000071430000-0x000000007147C000-memory.dmp

    Filesize

    304KB

  • memory/536-20-0x0000000074C40000-0x00000000753F0000-memory.dmp

    Filesize

    7.7MB

  • memory/2132-127-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2132-146-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2132-26-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2132-23-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2132-29-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2132-99-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2132-37-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2132-21-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2132-138-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2132-145-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2132-130-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2132-96-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/2132-56-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2132-129-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2132-97-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/2132-93-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/2132-153-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2132-22-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2132-137-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2132-57-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2132-59-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2132-58-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2132-60-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2132-62-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2196-71-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/2196-73-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/2196-72-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/2852-65-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2852-66-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2852-67-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2860-30-0x0000000074C40000-0x00000000753F0000-memory.dmp

    Filesize

    7.7MB

  • memory/2860-2-0x0000000005B20000-0x00000000060C4000-memory.dmp

    Filesize

    5.6MB

  • memory/2860-3-0x0000000005570000-0x0000000005602000-memory.dmp

    Filesize

    584KB

  • memory/2860-10-0x00000000068D0000-0x0000000006990000-memory.dmp

    Filesize

    768KB

  • memory/2860-8-0x0000000074C4E000-0x0000000074C4F000-memory.dmp

    Filesize

    4KB

  • memory/2860-4-0x0000000074C40000-0x00000000753F0000-memory.dmp

    Filesize

    7.7MB

  • memory/2860-5-0x0000000005680000-0x000000000568A000-memory.dmp

    Filesize

    40KB

  • memory/2860-0-0x0000000074C4E000-0x0000000074C4F000-memory.dmp

    Filesize

    4KB

  • memory/2860-7-0x0000000005890000-0x00000000058A8000-memory.dmp

    Filesize

    96KB

  • memory/2860-1-0x00000000009C0000-0x0000000000AF0000-memory.dmp

    Filesize

    1.2MB

  • memory/2860-6-0x00000000057D0000-0x000000000586C000-memory.dmp

    Filesize

    624KB

  • memory/2860-9-0x0000000074C40000-0x00000000753F0000-memory.dmp

    Filesize

    7.7MB

  • memory/3372-98-0x00000000075C0000-0x00000000075DA000-memory.dmp

    Filesize

    104KB

  • memory/3372-41-0x0000000005CF0000-0x0000000006044000-memory.dmp

    Filesize

    3.3MB

  • memory/3372-90-0x0000000007470000-0x0000000007513000-memory.dmp

    Filesize

    652KB

  • memory/3372-89-0x0000000006850000-0x000000000686E000-memory.dmp

    Filesize

    120KB

  • memory/3372-78-0x0000000006870000-0x00000000068A2000-memory.dmp

    Filesize

    200KB

  • memory/3372-110-0x0000000007630000-0x000000000763A000-memory.dmp

    Filesize

    40KB

  • memory/3372-111-0x0000000007840000-0x00000000078D6000-memory.dmp

    Filesize

    600KB

  • memory/3372-79-0x0000000071430000-0x000000007147C000-memory.dmp

    Filesize

    304KB

  • memory/3372-113-0x00000000077F0000-0x00000000077FE000-memory.dmp

    Filesize

    56KB

  • memory/3372-63-0x00000000062A0000-0x00000000062BE000-memory.dmp

    Filesize

    120KB

  • memory/3372-115-0x0000000007900000-0x000000000791A000-memory.dmp

    Filesize

    104KB

  • memory/3372-116-0x00000000078E0000-0x00000000078E8000-memory.dmp

    Filesize

    32KB

  • memory/3372-15-0x0000000004CE0000-0x0000000004D16000-memory.dmp

    Filesize

    216KB

  • memory/3372-16-0x0000000074C40000-0x00000000753F0000-memory.dmp

    Filesize

    7.7MB

  • memory/3372-124-0x0000000074C40000-0x00000000753F0000-memory.dmp

    Filesize

    7.7MB

  • memory/3372-17-0x0000000005410000-0x0000000005A38000-memory.dmp

    Filesize

    6.2MB

  • memory/3372-31-0x0000000005A40000-0x0000000005A62000-memory.dmp

    Filesize

    136KB

  • memory/3372-55-0x0000000074C40000-0x00000000753F0000-memory.dmp

    Filesize

    7.7MB

  • memory/3372-38-0x0000000005BA0000-0x0000000005C06000-memory.dmp

    Filesize

    408KB

  • memory/3372-91-0x0000000007C00000-0x000000000827A000-memory.dmp

    Filesize

    6.5MB

  • memory/3372-40-0x0000000074C40000-0x00000000753F0000-memory.dmp

    Filesize

    7.7MB

  • memory/3372-39-0x0000000005C80000-0x0000000005CE6000-memory.dmp

    Filesize

    408KB

  • memory/3544-76-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/3544-75-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/3544-74-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB