Analysis

  • max time kernel
    149s
  • max time network
    151s
  • 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 07:21

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:4668
    • 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:4076
    • 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:1108
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\dYDLGuPwXKp" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF627.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:752
    • 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:2996
      • C:\Users\Admin\AppData\Local\Temp\5fe247828f3087cbede022c3db3c57ac8c0bb0138ea8e3424021afc4e314d076.exe
        C:\Users\Admin\AppData\Local\Temp\5fe247828f3087cbede022c3db3c57ac8c0bb0138ea8e3424021afc4e314d076.exe /stext "C:\Users\Admin\AppData\Local\Temp\tgqehidsqvarxtxirefhz"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        PID:1104
      • C:\Users\Admin\AppData\Local\Temp\5fe247828f3087cbede022c3db3c57ac8c0bb0138ea8e3424021afc4e314d076.exe
        C:\Users\Admin\AppData\Local\Temp\5fe247828f3087cbede022c3db3c57ac8c0bb0138ea8e3424021afc4e314d076.exe /stext "C:\Users\Admin\AppData\Local\Temp\divpabomedswahlmaosikmqoz"
        3⤵
        • Accesses Microsoft Outlook accounts
        • System Location Discovery: System Language Discovery
        PID:4892
      • C:\Users\Admin\AppData\Local\Temp\5fe247828f3087cbede022c3db3c57ac8c0bb0138ea8e3424021afc4e314d076.exe
        C:\Users\Admin\AppData\Local\Temp\5fe247828f3087cbede022c3db3c57ac8c0bb0138ea8e3424021afc4e314d076.exe /stext "C:\Users\Admin\AppData\Local\Temp\gcbhatznsmkjknhqszeknzlxawho"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3148

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\remcos\logs.dat

    Filesize

    144B

    MD5

    d2db30494539ea9d2516d29a978fa835

    SHA1

    747e13e33a9241c23306d2a15a40aaf760155dc8

    SHA256

    f0f90ede8bdf63868b0bdd8ce99b3393b06daecfd5bce22046c27cdf54cadaf6

    SHA512

    e8d3df7f8a6c1b1522ed857df4e67921527e1e6f94f67d38286cad6738313ee00fcaacdf09693a91226bc5923b4a3c7f906ed2cc48563780e130b8b5604c4164

  • 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

    bcf062d55565098e7ce3d486a6b3f0b7

    SHA1

    f91a67710829521738cc6edb72817ccb35365319

    SHA256

    55bef7a9091ebc0d206c306037838635bdbf040e3d64280c46e251282a2a6f11

    SHA512

    39aa1aa01571b71d6cfba4f9217074ede194ab2201bdb2f519117987aafd51141259243e4cffe9921cf196fe72a21919bc981097c4c1d4d3e709ad5c3342d661

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_re1r3eo2.bs5.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

    Filesize

    4KB

    MD5

    c0ab2847671ed5375328c5127a02cc72

    SHA1

    dc2bcb51562fb17e5c8787833bc0181d88a5b75e

    SHA256

    e961f466a0638bc99182d0056245e2d8bf1ccc13a189b802aada981f379e2384

    SHA512

    0b8b634d21ac71e02cef86687bf84b6fcecfd24dafab8130f42ce8b4b3f308a2e1b1fa7bf8d37f2eda76efae2b30b8d39f41d808d771562d8545ed144241924f

  • C:\Users\Admin\AppData\Local\Temp\tmpF627.tmp

    Filesize

    1KB

    MD5

    cd710919b5760f86a90e5eae3114e37f

    SHA1

    3a1f091634d9d81d46f0aa6b5c61e77188c1ef8f

    SHA256

    70bba9e798d78fa8e8b7d2a8d295d3a3f7c81364c57974b4806d236d967a34f7

    SHA512

    ddd9d65b2a39c83dcfdda576b8cf548791bcef4ecd068b2d4efe4460b6a016d96fec0bfaa36cfb5d88a01d3045e0e9a975bfe30636aa92d35568017231b7bcb9

  • memory/1104-64-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/1104-65-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/1104-63-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/1108-23-0x00000000752F0000-0x0000000075AA0000-memory.dmp

    Filesize

    7.7MB

  • memory/1108-55-0x0000000006170000-0x000000000618E000-memory.dmp

    Filesize

    120KB

  • memory/1108-121-0x00000000752F0000-0x0000000075AA0000-memory.dmp

    Filesize

    7.7MB

  • memory/1108-111-0x00000000076C0000-0x00000000076CE000-memory.dmp

    Filesize

    56KB

  • memory/1108-103-0x0000000007690000-0x00000000076A1000-memory.dmp

    Filesize

    68KB

  • memory/1108-98-0x0000000007AD0000-0x000000000814A000-memory.dmp

    Filesize

    6.5MB

  • memory/1108-19-0x00000000752F0000-0x0000000075AA0000-memory.dmp

    Filesize

    7.7MB

  • memory/1108-20-0x00000000752F0000-0x0000000075AA0000-memory.dmp

    Filesize

    7.7MB

  • memory/1108-99-0x0000000007490000-0x00000000074AA000-memory.dmp

    Filesize

    104KB

  • memory/1108-97-0x0000000007380000-0x0000000007423000-memory.dmp

    Filesize

    652KB

  • memory/1108-76-0x0000000073DA0000-0x0000000073DEC000-memory.dmp

    Filesize

    304KB

  • memory/1108-75-0x0000000007340000-0x0000000007372000-memory.dmp

    Filesize

    200KB

  • memory/1108-96-0x0000000006730000-0x000000000674E000-memory.dmp

    Filesize

    120KB

  • memory/1108-56-0x00000000066E0000-0x000000000672C000-memory.dmp

    Filesize

    304KB

  • memory/2996-110-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2996-59-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2996-150-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2996-149-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2996-33-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2996-30-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2996-28-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2996-46-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2996-141-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2996-142-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2996-58-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2996-27-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2996-60-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2996-57-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2996-62-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2996-133-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2996-125-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2996-126-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2996-109-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/2996-108-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/2996-105-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/3148-72-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/3148-73-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/3148-74-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/4076-112-0x0000000007E20000-0x0000000007E34000-memory.dmp

    Filesize

    80KB

  • memory/4076-16-0x0000000005A20000-0x0000000006048000-memory.dmp

    Filesize

    6.2MB

  • memory/4076-77-0x0000000073DA0000-0x0000000073DEC000-memory.dmp

    Filesize

    304KB

  • memory/4076-34-0x00000000062F0000-0x0000000006644000-memory.dmp

    Filesize

    3.3MB

  • memory/4076-24-0x0000000005900000-0x0000000005922000-memory.dmp

    Filesize

    136KB

  • memory/4076-22-0x00000000752F0000-0x0000000075AA0000-memory.dmp

    Filesize

    7.7MB

  • memory/4076-18-0x00000000752F0000-0x0000000075AA0000-memory.dmp

    Filesize

    7.7MB

  • memory/4076-101-0x0000000007C50000-0x0000000007C5A000-memory.dmp

    Filesize

    40KB

  • memory/4076-102-0x0000000007E60000-0x0000000007EF6000-memory.dmp

    Filesize

    600KB

  • memory/4076-17-0x00000000752F0000-0x0000000075AA0000-memory.dmp

    Filesize

    7.7MB

  • memory/4076-25-0x00000000059A0000-0x0000000005A06000-memory.dmp

    Filesize

    408KB

  • memory/4076-120-0x00000000752F0000-0x0000000075AA0000-memory.dmp

    Filesize

    7.7MB

  • memory/4076-15-0x0000000005310000-0x0000000005346000-memory.dmp

    Filesize

    216KB

  • memory/4076-114-0x0000000007F00000-0x0000000007F08000-memory.dmp

    Filesize

    32KB

  • memory/4076-113-0x0000000007F20000-0x0000000007F3A000-memory.dmp

    Filesize

    104KB

  • memory/4076-26-0x0000000006280000-0x00000000062E6000-memory.dmp

    Filesize

    408KB

  • memory/4668-2-0x0000000005FC0000-0x0000000006564000-memory.dmp

    Filesize

    5.6MB

  • memory/4668-7-0x00000000070E0000-0x00000000070F8000-memory.dmp

    Filesize

    96KB

  • memory/4668-4-0x00000000752F0000-0x0000000075AA0000-memory.dmp

    Filesize

    7.7MB

  • memory/4668-3-0x0000000005A10000-0x0000000005AA2000-memory.dmp

    Filesize

    584KB

  • memory/4668-9-0x00000000752F0000-0x0000000075AA0000-memory.dmp

    Filesize

    7.7MB

  • memory/4668-40-0x00000000752F0000-0x0000000075AA0000-memory.dmp

    Filesize

    7.7MB

  • memory/4668-10-0x0000000006CD0000-0x0000000006D90000-memory.dmp

    Filesize

    768KB

  • memory/4668-6-0x0000000005D00000-0x0000000005D9C000-memory.dmp

    Filesize

    624KB

  • memory/4668-8-0x00000000752FE000-0x00000000752FF000-memory.dmp

    Filesize

    4KB

  • memory/4668-1-0x0000000000ED0000-0x0000000001000000-memory.dmp

    Filesize

    1.2MB

  • memory/4668-0-0x00000000752FE000-0x00000000752FF000-memory.dmp

    Filesize

    4KB

  • memory/4668-5-0x00000000059F0000-0x00000000059FA000-memory.dmp

    Filesize

    40KB

  • memory/4892-71-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/4892-66-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/4892-67-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB