Analysis

  • max time kernel
    149s
  • max time network
    146s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    13-11-2024 12:11

General

  • Target

    9b4391946e6ef750cd4790bbf6a35a0f2c43d10dd0475827e50946d8eea893b6.exe

  • Size

    1.0MB

  • MD5

    da64ef3f58dcd1477b91418255568f70

  • SHA1

    386e418b3d816c00ec25b084a2fc9ad2c009e887

  • SHA256

    9b4391946e6ef750cd4790bbf6a35a0f2c43d10dd0475827e50946d8eea893b6

  • SHA512

    d9b443729cd244629c3416d94dae0413e7288e8fc3bb1b74758c46d7efa8265600a7f4c2231918ab434951385d9e54c0fba6c25d04416266d7642bebcec97dd8

  • SSDEEP

    24576:ug/fo38qzl/vo8VyMKm62wPLOfsbd7384gmRF:xvqzl48AMNGOfs57M4tR

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

81.161.238.174:46098

127.0.0.1:46098

Attributes
  • audio_folder

    MicRecords

  • audio_path

    ApplicationPath

  • 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-UZGQA3

  • 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.

  • Remcos family
  • 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.

  • 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 6 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 40 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9b4391946e6ef750cd4790bbf6a35a0f2c43d10dd0475827e50946d8eea893b6.exe
    "C:\Users\Admin\AppData\Local\Temp\9b4391946e6ef750cd4790bbf6a35a0f2c43d10dd0475827e50946d8eea893b6.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2084
    • 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\9b4391946e6ef750cd4790bbf6a35a0f2c43d10dd0475827e50946d8eea893b6.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2744
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\gAGKIpbVdGGk.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2880
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\gAGKIpbVdGGk" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF70C.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2752
    • C:\Users\Admin\AppData\Local\Temp\9b4391946e6ef750cd4790bbf6a35a0f2c43d10dd0475827e50946d8eea893b6.exe
      "C:\Users\Admin\AppData\Local\Temp\9b4391946e6ef750cd4790bbf6a35a0f2c43d10dd0475827e50946d8eea893b6.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:2844
      • C:\Users\Admin\AppData\Local\Temp\9b4391946e6ef750cd4790bbf6a35a0f2c43d10dd0475827e50946d8eea893b6.exe
        C:\Users\Admin\AppData\Local\Temp\9b4391946e6ef750cd4790bbf6a35a0f2c43d10dd0475827e50946d8eea893b6.exe /stext "C:\Users\Admin\AppData\Local\Temp\yixbpxbtmqq"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        PID:1376
      • C:\Users\Admin\AppData\Local\Temp\9b4391946e6ef750cd4790bbf6a35a0f2c43d10dd0475827e50946d8eea893b6.exe
        C:\Users\Admin\AppData\Local\Temp\9b4391946e6ef750cd4790bbf6a35a0f2c43d10dd0475827e50946d8eea893b6.exe /stext "C:\Users\Admin\AppData\Local\Temp\adcuqpmmiyiqogt"
        3⤵
        • Accesses Microsoft Outlook accounts
        • System Location Discovery: System Language Discovery
        PID:952
      • C:\Users\Admin\AppData\Local\Temp\9b4391946e6ef750cd4790bbf6a35a0f2c43d10dd0475827e50946d8eea893b6.exe
        C:\Users\Admin\AppData\Local\Temp\9b4391946e6ef750cd4790bbf6a35a0f2c43d10dd0475827e50946d8eea893b6.exe /stext "C:\Users\Admin\AppData\Local\Temp\lximjhxowgavqmpckx"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:668

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpF70C.tmp

    Filesize

    1KB

    MD5

    a6c048d9bb59a5f02f8b37c5466069a8

    SHA1

    fdb50082e15e84a721fc0caca020020e39d35ed4

    SHA256

    a6f2f48b0965e8327e945256fa3cea0cd95e0b34c10cf1e0738ae1592e1b5d59

    SHA512

    528ebe9d2a3da01a6f5be3e80ffa25b961fcd61cffcd8f8460e870ffd8454c48896a2020381f4993c227380b5f7fdf0ed1785adb65b231a1aeb453b50b6f5090

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

    Filesize

    2B

    MD5

    f3b25701fe362ec84616a93a45ce9998

    SHA1

    d62636d8caec13f04e28442a0a6fa1afeb024bbb

    SHA256

    b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

    SHA512

    98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

    Filesize

    7KB

    MD5

    5bc588ca3daa26880e9263bcbb56f86c

    SHA1

    0a19c31120d99adc4803a912a2b589284346e010

    SHA256

    aac22bfbf3fbf2b219dfe511799c9e3d466db88c7c3186089d4396e9591b4404

    SHA512

    9bdb83932d9891db3d52ba5f9d6b27a48313c57b45f63f8c96def52940fc69b7377ae3da8fae0b7c62795574f27cfb964af810349bcf8ba3c6449e4302fe4b9a

  • memory/668-62-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/668-61-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/668-60-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/952-57-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/952-56-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/952-54-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/1376-51-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1376-52-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/1376-58-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/1376-55-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2084-6-0x000000000A7B0000-0x000000000A870000-memory.dmp

    Filesize

    768KB

  • memory/2084-5-0x0000000074850000-0x0000000074F3E000-memory.dmp

    Filesize

    6.9MB

  • memory/2084-41-0x0000000074850000-0x0000000074F3E000-memory.dmp

    Filesize

    6.9MB

  • memory/2084-0-0x000000007485E000-0x000000007485F000-memory.dmp

    Filesize

    4KB

  • memory/2084-4-0x000000007485E000-0x000000007485F000-memory.dmp

    Filesize

    4KB

  • memory/2084-3-0x00000000002D0000-0x00000000002EC000-memory.dmp

    Filesize

    112KB

  • memory/2084-2-0x0000000074850000-0x0000000074F3E000-memory.dmp

    Filesize

    6.9MB

  • memory/2084-1-0x0000000000C20000-0x0000000000D2C000-memory.dmp

    Filesize

    1.0MB

  • memory/2844-40-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2844-38-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2844-25-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2844-42-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2844-43-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2844-44-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2844-45-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2844-46-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2844-48-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2844-49-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2844-50-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2844-29-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2844-31-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2844-33-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2844-35-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2844-36-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2844-37-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2844-27-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2844-39-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2844-19-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2844-63-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2844-21-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2844-23-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2844-69-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/2844-73-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/2844-72-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/2844-74-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2844-75-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2844-76-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2844-77-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2844-78-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2844-79-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2844-80-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2844-81-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2844-82-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB