Analysis

  • max time kernel
    128s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-12-2024 10:53

General

  • Target

    2024-12-08_d55fe7738b03967957161f97b24c900b_karagany_mafia.exe

  • Size

    6.0MB

  • MD5

    d55fe7738b03967957161f97b24c900b

  • SHA1

    9a6039d4c2117345b2a6af1a088c7c7b4b6aa236

  • SHA256

    317e36772fc378f6d3e38a5841286709e38f8ac967811d9cb98619137ccd4b67

  • SHA512

    751c466626e70cfdc5c82645f99f60f3268dc182c52ad0e7f8464c4f5709669c7d88a9e0de9de96cc6255f89d5d5411bfcf963010d1bf99839d37304473c856d

  • SSDEEP

    98304:7XJ2XjVKNkXiShwXPD6L+r3ZU2B1KQI58F8/aMkDr05QaUj1FX8T55dCL3QrJrMX:nShoPD6yr5BUz82/GEQBX8rAL3a

Malware Config

Signatures

  • Glupteba

    Glupteba is a modular loader written in Golang with various components.

  • Glupteba family
  • Glupteba payload 7 IoCs
  • Modifies Windows Firewall 2 TTPs 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs

    Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.

  • Drops file in Windows directory 2 IoCs
  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 6 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • Modifies data under HKEY_USERS 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-12-08_d55fe7738b03967957161f97b24c900b_karagany_mafia.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-12-08_d55fe7738b03967957161f97b24c900b_karagany_mafia.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:3980
    • C:\Users\Admin\AppData\Local\Temp\2024-12-08_d55fe7738b03967957161f97b24c900b_karagany_mafia.exe
      "C:\Users\Admin\AppData\Local\Temp\2024-12-08_d55fe7738b03967957161f97b24c900b_karagany_mafia.exe"
      2⤵
      • Adds Run key to start application
      • Checks for VirtualBox DLLs, possible anti-VM trick
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3696
      • C:\Windows\system32\cmd.exe
        C:\Windows\Sysnative\cmd.exe /C "netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1964
        • C:\Windows\system32\netsh.exe
          netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes
          4⤵
          • Modifies Windows Firewall
          • Event Triggered Execution: Netsh Helper DLL
          PID:2768
      • C:\Windows\system32\cmd.exe
        C:\Windows\Sysnative\cmd.exe /C "netsh advfirewall firewall add rule name="CloudNet" dir=in action=allow program="C:\Users\Admin\AppData\Roaming\EpicNet Inc\CloudNet\cloudnet.exe" enable=yes"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1248
        • C:\Windows\system32\netsh.exe
          netsh advfirewall firewall add rule name="CloudNet" dir=in action=allow program="C:\Users\Admin\AppData\Roaming\EpicNet Inc\CloudNet\cloudnet.exe" enable=yes
          4⤵
          • Modifies Windows Firewall
          • Event Triggered Execution: Netsh Helper DLL
          PID:3480
      • C:\Windows\rss\csrss.exe
        C:\Windows\rss\csrss.exe /6-mafia
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:1756

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\rss\csrss.exe

    Filesize

    6.0MB

    MD5

    d55fe7738b03967957161f97b24c900b

    SHA1

    9a6039d4c2117345b2a6af1a088c7c7b4b6aa236

    SHA256

    317e36772fc378f6d3e38a5841286709e38f8ac967811d9cb98619137ccd4b67

    SHA512

    751c466626e70cfdc5c82645f99f60f3268dc182c52ad0e7f8464c4f5709669c7d88a9e0de9de96cc6255f89d5d5411bfcf963010d1bf99839d37304473c856d

  • memory/3696-8-0x0000000000400000-0x000000000427C000-memory.dmp

    Filesize

    62.5MB

  • memory/3696-13-0x0000000000400000-0x000000000427C000-memory.dmp

    Filesize

    62.5MB

  • memory/3980-1-0x0000000006640000-0x0000000006B15000-memory.dmp

    Filesize

    4.8MB

  • memory/3980-2-0x0000000006B20000-0x00000000071F0000-memory.dmp

    Filesize

    6.8MB

  • memory/3980-3-0x0000000000400000-0x0000000000AEB000-memory.dmp

    Filesize

    6.9MB

  • memory/3980-5-0x0000000006B20000-0x00000000071F0000-memory.dmp

    Filesize

    6.8MB

  • memory/3980-6-0x0000000000400000-0x0000000000AEB000-memory.dmp

    Filesize

    6.9MB

  • memory/3980-4-0x0000000000400000-0x000000000427C000-memory.dmp

    Filesize

    62.5MB