Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    12-11-2024 06:36

General

  • Target

    da64ef3f58dcd1477b91418255568f70.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 7 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\da64ef3f58dcd1477b91418255568f70.exe
    "C:\Users\Admin\AppData\Local\Temp\da64ef3f58dcd1477b91418255568f70.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2888
    • 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\da64ef3f58dcd1477b91418255568f70.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3064
    • 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:2836
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\gAGKIpbVdGGk" /XML "C:\Users\Admin\AppData\Local\Temp\tmpABBA.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2864
    • C:\Users\Admin\AppData\Local\Temp\da64ef3f58dcd1477b91418255568f70.exe
      "C:\Users\Admin\AppData\Local\Temp\da64ef3f58dcd1477b91418255568f70.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:1212
      • C:\Users\Admin\AppData\Local\Temp\da64ef3f58dcd1477b91418255568f70.exe
        C:\Users\Admin\AppData\Local\Temp\da64ef3f58dcd1477b91418255568f70.exe /stext "C:\Users\Admin\AppData\Local\Temp\pdehjdgphsgkftheqhsuoiqlvxueis"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        PID:2300
      • C:\Users\Admin\AppData\Local\Temp\da64ef3f58dcd1477b91418255568f70.exe
        C:\Users\Admin\AppData\Local\Temp\da64ef3f58dcd1477b91418255568f70.exe /stext "C:\Users\Admin\AppData\Local\Temp\zyjrjwrjvbypqadqhsnoznkcedlnbdkdp"
        3⤵
        • Accesses Microsoft Outlook accounts
        • System Location Discovery: System Language Discovery
        PID:2980
      • C:\Users\Admin\AppData\Local\Temp\da64ef3f58dcd1477b91418255568f70.exe
        C:\Users\Admin\AppData\Local\Temp\da64ef3f58dcd1477b91418255568f70.exe /stext "C:\Users\Admin\AppData\Local\Temp\capkk"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:2996

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    2B

    MD5

    f3b25701fe362ec84616a93a45ce9998

    SHA1

    d62636d8caec13f04e28442a0a6fa1afeb024bbb

    SHA256

    b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

    SHA512

    98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

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

    Filesize

    1KB

    MD5

    692bc21522b1702dcc6bdb99cf3d631a

    SHA1

    27b001446fcbdba35561f2733a0129e3c69aba6c

    SHA256

    ed5c05edb2a00ae8139a56feef7c85a3c5bd1c20b306fdee75f5003b50ed19f4

    SHA512

    6373df4eb68e4d56ab7bbe9035ea9c662e2b1ff136e4f2e8e15a84320cdd14d7c19334b8eb92977cfca897633c259086ae7a8b8ddd318c2bd8ba952ab2d160c7

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

    Filesize

    7KB

    MD5

    77780c65425746889d2faf4f6a44d378

    SHA1

    6956fd9dbb05a5926e0935dd690f520548c5aa0a

    SHA256

    6a397b7232e5d253103998136f2771b0d3fe507f531a265db6b0dc16849f8735

    SHA512

    f4debbdf6009eff272fca82301f1ec1632518789c4c6617af46ffb7561137cf0308d6353613ef03c4a17a8b5bce38f342705fd23227f39d400b7d1b26771521f

  • memory/1212-47-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1212-80-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1212-84-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1212-83-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1212-38-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1212-37-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1212-39-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1212-31-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1212-29-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1212-40-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1212-25-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1212-23-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1212-36-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1212-35-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1212-27-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1212-48-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1212-82-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1212-49-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1212-79-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1212-78-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1212-77-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1212-42-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1212-43-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1212-44-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1212-45-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1212-21-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1212-81-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1212-33-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1212-76-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1212-74-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/1212-75-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/1212-56-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1212-71-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/1212-19-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1212-65-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1212-64-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1212-61-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2300-63-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2300-51-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2300-54-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2888-2-0x0000000073DC0000-0x00000000744AE000-memory.dmp

    Filesize

    6.9MB

  • memory/2888-5-0x0000000073DC0000-0x00000000744AE000-memory.dmp

    Filesize

    6.9MB

  • memory/2888-1-0x0000000000030000-0x000000000013C000-memory.dmp

    Filesize

    1.0MB

  • memory/2888-3-0x0000000001F60000-0x0000000001F7C000-memory.dmp

    Filesize

    112KB

  • memory/2888-0-0x0000000073DCE000-0x0000000073DCF000-memory.dmp

    Filesize

    4KB

  • memory/2888-4-0x0000000073DCE000-0x0000000073DCF000-memory.dmp

    Filesize

    4KB

  • memory/2888-6-0x000000000A6E0000-0x000000000A7A0000-memory.dmp

    Filesize

    768KB

  • memory/2888-41-0x0000000073DC0000-0x00000000744AE000-memory.dmp

    Filesize

    6.9MB

  • memory/2980-57-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/2980-53-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/2980-52-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2980-55-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/2996-59-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/2996-58-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2996-62-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/2996-60-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB