Analysis

  • max time kernel
    150s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-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 16 IoCs
  • Windows security bypass 2 TTPs 12 IoCs
  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Windows security modification 2 TTPs 12 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in System32 directory 4 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 3 IoCs
  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 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
  • Modifies system certificate store 2 TTPs 6 IoCs
  • Suspicious behavior: EnumeratesProcesses 9 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:2340
    • 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⤵
      • Windows security bypass
      • Loads dropped DLL
      • Windows security modification
      • 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:2600
      • 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:1272
        • 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
          • Modifies data under HKEY_USERS
          PID:1624
      • C:\Windows\rss\csrss.exe
        C:\Windows\rss\csrss.exe /6-mafia
        3⤵
        • Executes dropped EXE
        • Drops file in System32 directory
        • System Location Discovery: System Language Discovery
        • Modifies data under HKEY_USERS
        • Modifies system certificate store
        • Suspicious behavior: EnumeratesProcesses
        PID:2120
  • C:\Windows\system32\makecab.exe
    "C:\Windows\system32\makecab.exe" C:\Windows\Logs\CBS\CbsPersist_20241208105335.log C:\Windows\Logs\CBS\CbsPersist_20241208105335.cab
    1⤵
    • Drops file in Windows directory
    PID:2880

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Windows\Temp\Tar8174.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

  • \Windows\rss\csrss.exe

    Filesize

    6.0MB

    MD5

    d55fe7738b03967957161f97b24c900b

    SHA1

    9a6039d4c2117345b2a6af1a088c7c7b4b6aa236

    SHA256

    317e36772fc378f6d3e38a5841286709e38f8ac967811d9cb98619137ccd4b67

    SHA512

    751c466626e70cfdc5c82645f99f60f3268dc182c52ad0e7f8464c4f5709669c7d88a9e0de9de96cc6255f89d5d5411bfcf963010d1bf99839d37304473c856d

  • memory/2120-70-0x0000000000400000-0x000000000427C000-memory.dmp

    Filesize

    62.5MB

  • memory/2120-67-0x0000000000400000-0x000000000427C000-memory.dmp

    Filesize

    62.5MB

  • memory/2120-79-0x0000000000400000-0x000000000427C000-memory.dmp

    Filesize

    62.5MB

  • memory/2120-76-0x0000000000400000-0x000000000427C000-memory.dmp

    Filesize

    62.5MB

  • memory/2120-74-0x0000000000400000-0x000000000427C000-memory.dmp

    Filesize

    62.5MB

  • memory/2120-73-0x0000000000400000-0x000000000427C000-memory.dmp

    Filesize

    62.5MB

  • memory/2120-72-0x0000000000400000-0x000000000427C000-memory.dmp

    Filesize

    62.5MB

  • memory/2120-71-0x0000000000400000-0x000000000427C000-memory.dmp

    Filesize

    62.5MB

  • memory/2120-18-0x0000000005F90000-0x0000000006459000-memory.dmp

    Filesize

    4.8MB

  • memory/2120-19-0x0000000000400000-0x000000000427C000-memory.dmp

    Filesize

    62.5MB

  • memory/2120-69-0x0000000000400000-0x000000000427C000-memory.dmp

    Filesize

    62.5MB

  • memory/2120-68-0x0000000000400000-0x000000000427C000-memory.dmp

    Filesize

    62.5MB

  • memory/2340-3-0x0000000000400000-0x0000000000AEB000-memory.dmp

    Filesize

    6.9MB

  • memory/2340-1-0x0000000006180000-0x0000000006649000-memory.dmp

    Filesize

    4.8MB

  • memory/2340-2-0x0000000006650000-0x0000000006D20000-memory.dmp

    Filesize

    6.8MB

  • memory/2340-0-0x0000000006180000-0x0000000006649000-memory.dmp

    Filesize

    4.8MB

  • memory/2340-6-0x0000000006180000-0x0000000006649000-memory.dmp

    Filesize

    4.8MB

  • memory/2340-4-0x0000000000400000-0x000000000427C000-memory.dmp

    Filesize

    62.5MB

  • memory/2340-5-0x0000000006650000-0x0000000006D20000-memory.dmp

    Filesize

    6.8MB

  • memory/2340-7-0x0000000000400000-0x0000000000AEB000-memory.dmp

    Filesize

    6.9MB

  • memory/2600-17-0x0000000000400000-0x000000000427C000-memory.dmp

    Filesize

    62.5MB

  • memory/2600-8-0x0000000006270000-0x0000000006739000-memory.dmp

    Filesize

    4.8MB