Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20231020-en
  • resource tags

    arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
  • submitted
    02-12-2023 09:32

General

  • Target

    9c365f7df9b2bb958a53890dc80a258de1f5ea0781155f7c2b3741b9dd593867.exe

  • Size

    994KB

  • MD5

    2d1013d597cf1a7313da5e4be3df12af

  • SHA1

    015dcee05970990215d6d7d2498e3e412de81f16

  • SHA256

    9c365f7df9b2bb958a53890dc80a258de1f5ea0781155f7c2b3741b9dd593867

  • SHA512

    5c10d4b559d424940ddb0f202e44563f1c4b1a38e4b69a310eb80ac2a5ecf46a2bbb5225e7b124af8feed09645a4073e81bc51be30b9702b3bd29342fac76621

  • SSDEEP

    24576:u7Oz/Q1yEUkVhVyU6YpfsmpPRnTr/hRaynRd1m:IOz/QA3kVh9ls8PrUeRd1m

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

107.175.229.139:8087

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-IZFV1M

  • 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.

  • NirSoft MailPassView 3 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 2 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 8 IoCs
  • 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).

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: MapViewOfSection 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 44 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9c365f7df9b2bb958a53890dc80a258de1f5ea0781155f7c2b3741b9dd593867.exe
    "C:\Users\Admin\AppData\Local\Temp\9c365f7df9b2bb958a53890dc80a258de1f5ea0781155f7c2b3741b9dd593867.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2196
    • 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\9c365f7df9b2bb958a53890dc80a258de1f5ea0781155f7c2b3741b9dd593867.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2496
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\nETbUrupBk.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2644
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\nETbUrupBk" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA380.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2332
    • C:\Users\Admin\AppData\Local\Temp\9c365f7df9b2bb958a53890dc80a258de1f5ea0781155f7c2b3741b9dd593867.exe
      "C:\Users\Admin\AppData\Local\Temp\9c365f7df9b2bb958a53890dc80a258de1f5ea0781155f7c2b3741b9dd593867.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2560
      • C:\Users\Admin\AppData\Local\Temp\9c365f7df9b2bb958a53890dc80a258de1f5ea0781155f7c2b3741b9dd593867.exe
        C:\Users\Admin\AppData\Local\Temp\9c365f7df9b2bb958a53890dc80a258de1f5ea0781155f7c2b3741b9dd593867.exe /stext "C:\Users\Admin\AppData\Local\Temp\xlnwackbjfqlzasnexk"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:2748
      • C:\Users\Admin\AppData\Local\Temp\9c365f7df9b2bb958a53890dc80a258de1f5ea0781155f7c2b3741b9dd593867.exe
        C:\Users\Admin\AppData\Local\Temp\9c365f7df9b2bb958a53890dc80a258de1f5ea0781155f7c2b3741b9dd593867.exe /stext "C:\Users\Admin\AppData\Local\Temp\igshauucxniqbggrvixtqv"
        3⤵
        • Accesses Microsoft Outlook accounts
        PID:1996
      • C:\Users\Admin\AppData\Local\Temp\9c365f7df9b2bb958a53890dc80a258de1f5ea0781155f7c2b3741b9dd593867.exe
        C:\Users\Admin\AppData\Local\Temp\9c365f7df9b2bb958a53890dc80a258de1f5ea0781155f7c2b3741b9dd593867.exe /stext "C:\Users\Admin\AppData\Local\Temp\sigzbnfwlvadmmcvetjvtiayw"
        3⤵
          PID:1636
        • C:\Users\Admin\AppData\Local\Temp\9c365f7df9b2bb958a53890dc80a258de1f5ea0781155f7c2b3741b9dd593867.exe
          C:\Users\Admin\AppData\Local\Temp\9c365f7df9b2bb958a53890dc80a258de1f5ea0781155f7c2b3741b9dd593867.exe /stext "C:\Users\Admin\AppData\Local\Temp\sigzbnfwlvadmmcvetjvtiayw"
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:820

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\ProgramData\remcos\logs.dat

      Filesize

      144B

      MD5

      a2ec7346ace27674b8db3c03817c9039

      SHA1

      0a9643f4fcc6e90661166be5429147ce2d78a2f0

      SHA256

      b575ab00fad70f541b3ff53ff77afcb99e777354d7e8b080993d6384ca0d6eeb

      SHA512

      fcd2c953074d9578694ed80db0b6d2f3ed7e1c9872f8cba2682266c936d1ee2c4401457d9b74f286489b8d1082cf7f0befcf2254885b9bfe66861aff7747be92

    • C:\Users\Admin\AppData\Local\Temp\tmpA380.tmp

      Filesize

      1KB

      MD5

      b2287cb380648067ca0f9671cc9b0e97

      SHA1

      6aa6d7d704403b2e42d29cc60f367a5618048b3f

      SHA256

      78e9dff7778d8aa7ada7ef7ef7c3c923e21fe43d33d8f77f3c8583d0aa093521

      SHA512

      528723da9f63efb68462720881029ad2792fcb5e22c8d3f7b358e4036d2807fdea7972f9e96749ff35dabbda629615dd6ea96c46ca4e0a0118a21b11c0f31f17

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

      Filesize

      2B

      MD5

      f3b25701fe362ec84616a93a45ce9998

      SHA1

      d62636d8caec13f04e28442a0a6fa1afeb024bbb

      SHA256

      b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

      SHA512

      98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\MTRBDZGLYC1O3EVQNACE.temp

      Filesize

      7KB

      MD5

      d3d5a9df491fe07a65b30a45496de087

      SHA1

      800dfa18ad1c0a53b0c7ecbfae0a1fce1cc32fbd

      SHA256

      e7bd2bfeff9bfb0273783a8f26c36e72aabe2d714169b0a084079fab7dbfddf7

      SHA512

      6b225fc98a880202974a631476b8fb58132359bd5049a64ad89a20038069807685000ef599276e6d070b8bbd1a298e81497ddc9b225ee978edf20a680b4e64c7

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

      Filesize

      7KB

      MD5

      d3d5a9df491fe07a65b30a45496de087

      SHA1

      800dfa18ad1c0a53b0c7ecbfae0a1fce1cc32fbd

      SHA256

      e7bd2bfeff9bfb0273783a8f26c36e72aabe2d714169b0a084079fab7dbfddf7

      SHA512

      6b225fc98a880202974a631476b8fb58132359bd5049a64ad89a20038069807685000ef599276e6d070b8bbd1a298e81497ddc9b225ee978edf20a680b4e64c7

    • memory/820-78-0x0000000000400000-0x0000000000424000-memory.dmp

      Filesize

      144KB

    • memory/820-84-0x0000000000400000-0x0000000000424000-memory.dmp

      Filesize

      144KB

    • memory/820-81-0x0000000000400000-0x0000000000424000-memory.dmp

      Filesize

      144KB

    • memory/820-83-0x0000000000400000-0x0000000000424000-memory.dmp

      Filesize

      144KB

    • memory/820-82-0x0000000000400000-0x0000000000424000-memory.dmp

      Filesize

      144KB

    • memory/1996-74-0x0000000000400000-0x0000000000457000-memory.dmp

      Filesize

      348KB

    • memory/1996-69-0x0000000000400000-0x0000000000457000-memory.dmp

      Filesize

      348KB

    • memory/1996-77-0x0000000000400000-0x0000000000457000-memory.dmp

      Filesize

      348KB

    • memory/1996-73-0x0000000000400000-0x0000000000457000-memory.dmp

      Filesize

      348KB

    • memory/1996-100-0x0000000000400000-0x0000000000457000-memory.dmp

      Filesize

      348KB

    • memory/2196-40-0x0000000074150000-0x000000007483E000-memory.dmp

      Filesize

      6.9MB

    • memory/2196-3-0x00000000005D0000-0x00000000005E6000-memory.dmp

      Filesize

      88KB

    • memory/2196-1-0x0000000074150000-0x000000007483E000-memory.dmp

      Filesize

      6.9MB

    • memory/2196-2-0x0000000004CA0000-0x0000000004CE0000-memory.dmp

      Filesize

      256KB

    • memory/2196-0-0x0000000000D60000-0x0000000000E5E000-memory.dmp

      Filesize

      1016KB

    • memory/2196-6-0x00000000060C0000-0x0000000006184000-memory.dmp

      Filesize

      784KB

    • memory/2196-5-0x00000000005F0000-0x00000000005FA000-memory.dmp

      Filesize

      40KB

    • memory/2196-4-0x00000000005E0000-0x00000000005E8000-memory.dmp

      Filesize

      32KB

    • memory/2496-79-0x000000006E470000-0x000000006EA1B000-memory.dmp

      Filesize

      5.7MB

    • memory/2496-50-0x000000006E470000-0x000000006EA1B000-memory.dmp

      Filesize

      5.7MB

    • memory/2496-47-0x000000006E470000-0x000000006EA1B000-memory.dmp

      Filesize

      5.7MB

    • memory/2496-55-0x0000000002360000-0x00000000023A0000-memory.dmp

      Filesize

      256KB

    • memory/2496-48-0x0000000002360000-0x00000000023A0000-memory.dmp

      Filesize

      256KB

    • memory/2560-58-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2560-99-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2560-129-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2560-128-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2560-121-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2560-54-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2560-45-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2560-56-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2560-44-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2560-60-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2560-120-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2560-113-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2560-112-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2560-43-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2560-41-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2560-39-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2560-109-0x0000000010000000-0x0000000010019000-memory.dmp

      Filesize

      100KB

    • memory/2560-37-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2560-35-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2560-33-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2560-31-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2560-29-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2560-27-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2560-25-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2560-19-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2560-23-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2560-92-0x0000000010000000-0x0000000010019000-memory.dmp

      Filesize

      100KB

    • memory/2560-96-0x0000000010000000-0x0000000010019000-memory.dmp

      Filesize

      100KB

    • memory/2560-95-0x0000000010000000-0x0000000010019000-memory.dmp

      Filesize

      100KB

    • memory/2560-97-0x0000000010000000-0x0000000010019000-memory.dmp

      Filesize

      100KB

    • memory/2560-98-0x0000000010000000-0x0000000010019000-memory.dmp

      Filesize

      100KB

    • memory/2560-105-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2560-21-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2560-102-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2560-103-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2644-49-0x000000006E470000-0x000000006EA1B000-memory.dmp

      Filesize

      5.7MB

    • memory/2644-63-0x000000006E470000-0x000000006EA1B000-memory.dmp

      Filesize

      5.7MB

    • memory/2644-52-0x0000000002860000-0x00000000028A0000-memory.dmp

      Filesize

      256KB

    • memory/2644-51-0x0000000002860000-0x00000000028A0000-memory.dmp

      Filesize

      256KB

    • memory/2644-46-0x000000006E470000-0x000000006EA1B000-memory.dmp

      Filesize

      5.7MB

    • memory/2748-90-0x0000000000400000-0x0000000000478000-memory.dmp

      Filesize

      480KB

    • memory/2748-72-0x0000000000400000-0x0000000000478000-memory.dmp

      Filesize

      480KB

    • memory/2748-68-0x0000000000400000-0x0000000000478000-memory.dmp

      Filesize

      480KB

    • memory/2748-64-0x0000000000400000-0x0000000000478000-memory.dmp

      Filesize

      480KB