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Overview

overview

10

Static

static

3

IB9876789000.bat.exe

windows7-x64

10

IB9876789000.bat.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    164s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    08/12/2024, 07:41

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General

  • Target

    IB9876789000.bat.exe

  • Size

    832KB

  • MD5

    f443c222255e35ee6dd0e194360c23ce

  • SHA1

    a8c84df31a575ab84e6255b89351ce877c9619c8

  • SHA256

    7053c8d9983dc949e5d559ba1b006b8ba9c059a23e06cd87c857c3d04201381b

  • SHA512

    ca58f238cf2599fabd5c34faa34630e2f158cc87a612ad1783a5982b7c835bf7941ee68699dc3e9486f01b578caf6ac53a15f22b92398aa32c8d8742d202fe53

  • SSDEEP

    12288:OeB1Nd/75yaHV5epXyU8+uggQdbGqDEEiHczNGNB4aEPvl1bDDdOJVe3e+mraL:OW1D5yeV5eNyB7QtHDE3HcE0DA8mraL

Score
10/10
remcosremotehostcollectiondiscoveryevasionexecutionrattrojan

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

192.210.150.26:3678

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-MKYDDH

  • 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.

    ratremcos
  • Remcos family
    remcos
  • UAC bypass 3 TTPs 1 IoCs
    evasiontrojan
  • Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
    evasion
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    execution
  • Looks for VMWare Tools registry key 2 TTPs 1 IoCs
    evasion
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Uses the VBS compiler for execution 1 TTPs
  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
    collection
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
    evasiontrojan
  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • 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 4 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • System policy modification 1 TTPs 1 IoCs
    evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\IB9876789000.bat.exe
    "C:\Users\Admin\AppData\Local\Temp\IB9876789000.bat.exe"
    1⤵
    • UAC bypass
    • Looks for VirtualBox Guest Additions in registry
    • Looks for VMWare Tools registry key
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:2168
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\IB9876789000.bat.exe" -Force
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1700
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\ngen.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\ngen.exe"
      2⤵
        PID:2392
      • C:\Windows\System32\calc.exe
        "C:\Windows\System32\calc.exe"
        2⤵
          PID:2740
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
          2⤵
            PID:2572
          • C:\Windows\System32\svchost.exe
            "C:\Windows\System32\svchost.exe"
            2⤵
              PID:2548
            • C:\Windows\System32\cmd.exe
              "C:\Windows\System32\cmd.exe"
              2⤵
                PID:2976
              • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe
                "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe"
                2⤵
                  PID:1088
                • C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
                  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe"
                  2⤵
                    PID:580
                  • C:\Program Files (x86)\Windows Mail\wab.exe
                    "C:\Program Files (x86)\Windows Mail\wab.exe"
                    2⤵
                    • Suspicious use of SetThreadContext
                    • System Location Discovery: System Language Discovery
                    • Suspicious behavior: MapViewOfSection
                    • Suspicious use of SetWindowsHookEx
                    PID:952
                    • C:\Program Files (x86)\Windows Mail\wab.exe
                      "C:\Program Files (x86)\Windows Mail\wab.exe" /stext "C:\Users\Admin\AppData\Local\Temp\urzqdfjksllvmzk"
                      3⤵
                      • System Location Discovery: System Language Discovery
                      • Suspicious behavior: EnumeratesProcesses
                      PID:2796
                    • C:\Program Files (x86)\Windows Mail\wab.exe
                      "C:\Program Files (x86)\Windows Mail\wab.exe" /stext "C:\Users\Admin\AppData\Local\Temp\euejwytmotdawfzsyo"
                      3⤵
                      • Accesses Microsoft Outlook accounts
                      • System Location Discovery: System Language Discovery
                      PID:2604
                    • C:\Program Files (x86)\Windows Mail\wab.exe
                      "C:\Program Files (x86)\Windows Mail\wab.exe" /stext "C:\Users\Admin\AppData\Local\Temp\oojcxqefcbwnytvwpziqj"
                      3⤵
                      • System Location Discovery: System Language Discovery
                      • Suspicious use of AdjustPrivilegeToken
                      PID:332
                  • C:\Program Files (x86)\Windows Mail\wab.exe
                    "C:\Program Files (x86)\Windows Mail\wab.exe"
                    2⤵
                      PID:1152

                  Network

                  MITRE ATT&CK Enterprise v15

                  Replay Monitor

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                  Downloads

                  • C:\ProgramData\remcos\logs.dat
                    Filesize

                    144B

                    MD5

                    894f7f22ff61e65fe77ee12b05388673

                    SHA1

                    9d4333829bbd24cd080fa790bf4a3ee943d29d04

                    SHA256

                    932a598861e3429635bd8c184e59992a2cd49f0c6a40249ad30a68ff0f4d0c33

                    SHA512

                    c2c11f97bcd9cc5b55377fe8e48632087c8116d22892c887e4e64fd696e6dae7010e734da9d1cf4392d7fad428d9111d54ac97f3bead0b17af9a2ff44fb93fe8

                    Download Submit

                  • C:\Users\Admin\AppData\Local\Temp\urzqdfjksllvmzk
                    Filesize

                    2B

                    MD5

                    f3b25701fe362ec84616a93a45ce9998

                    SHA1

                    d62636d8caec13f04e28442a0a6fa1afeb024bbb

                    SHA256

                    b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

                    SHA512

                    98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

                    Download Submit

                  • memory/1700-16-0x000000001B6F0000-0x000000001B9D2000-memory.dmp

                    Filesize

                    2.9MB

                    Download

                  • memory/1700-17-0x0000000002860000-0x0000000002868000-memory.dmp

                    Filesize

                    32KB

                    Download

                  • memory/2168-1-0x00000000012B0000-0x0000000001384000-memory.dmp

                    Filesize

                    848KB

                    Download

                  • memory/2168-2-0x000000001AA10000-0x000000001AAE0000-memory.dmp

                    Filesize

                    832KB

                    Download

                  • memory/2168-3-0x000007FEF5A10000-0x000007FEF63FC000-memory.dmp

                    Filesize

                    9.9MB

                    Download

                  • memory/2168-0-0x000007FEF5A13000-0x000007FEF5A14000-memory.dmp

                    Filesize

                    4KB

                    Download

                  • memory/2168-98-0x000007FEF5A10000-0x000007FEF63FC000-memory.dmp

                    Filesize

                    9.9MB

                    Download

                  • memory/2392-8-0x0000000000400000-0x000000000047F000-memory.dmp

                    Filesize

                    508KB

                    Download

                  • memory/2392-5-0x0000000000400000-0x000000000047F000-memory.dmp

                    Filesize

                    508KB

                    Download

                  • memory/2392-6-0x0000000000400000-0x000000000047F000-memory.dmp

                    Filesize

                    508KB

                    Download

                  • memory/2392-4-0x0000000000400000-0x000000000047F000-memory.dmp

                    Filesize

                    508KB

                    Download

                  • memory/2392-10-0x0000000000400000-0x000000000047F000-memory.dmp

                    Filesize

                    508KB

                    Download

                  • memory/2392-11-0x0000000000400000-0x000000000047F000-memory.dmp

                    Filesize

                    508KB

                    Download