Analysis

  • max time kernel
    138s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220721-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-07-2022 02:23

General

  • Target

    86e18b9384f0770bd1581107c17024a6152e671c8b50978cf3b9b91220fe3ed0.exe

  • Size

    3.7MB

  • MD5

    25352270e16b2f8edf0465daedb85e20

  • SHA1

    f180c2435917cf8f8ce7f1f00df9342c8eaa19d8

  • SHA256

    86e18b9384f0770bd1581107c17024a6152e671c8b50978cf3b9b91220fe3ed0

  • SHA512

    3a62ca288a9665b888ce3e5a5b3e69e48f884f644acc7fc6c6f303c69e11983c70f8f789bd98c86805a9e199656c03a457132154c6f42ffdfb295918a8684091

Malware Config

Signatures

  • Glupteba

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

  • Glupteba payload 7 IoCs
  • Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
  • suricata: ET MALWARE Glupteba CnC Domain in DNS Lookup

    suricata: ET MALWARE Glupteba CnC Domain in DNS Lookup

  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in System32 directory 6 IoCs
  • Drops file in Windows directory 2 IoCs
  • Modifies data under HKEY_USERS 64 IoCs
  • Modifies system certificate store 2 TTPs 6 IoCs
  • Suspicious behavior: EnumeratesProcesses 18 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\86e18b9384f0770bd1581107c17024a6152e671c8b50978cf3b9b91220fe3ed0.exe
    "C:\Users\Admin\AppData\Local\Temp\86e18b9384f0770bd1581107c17024a6152e671c8b50978cf3b9b91220fe3ed0.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:4228
    • C:\Users\Admin\AppData\Local\Temp\86e18b9384f0770bd1581107c17024a6152e671c8b50978cf3b9b91220fe3ed0.exe
      "C:\Users\Admin\AppData\Local\Temp\86e18b9384f0770bd1581107c17024a6152e671c8b50978cf3b9b91220fe3ed0.exe"
      2⤵
      • Adds Run key to start application
      • Drops file in Windows directory
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1232
      • 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:4492
        • 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
          PID:1824
      • 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:680
        • 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
          PID:4404
      • C:\Windows\rss\csrss.exe
        C:\Windows\rss\csrss.exe ""
        3⤵
        • Executes dropped EXE
        • Drops file in System32 directory
        • Modifies data under HKEY_USERS
        • Modifies system certificate store
        • Suspicious behavior: EnumeratesProcesses
        PID:4372
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k netsvcs -p -s seclogon
    1⤵
    • Suspicious use of NtCreateUserProcessOtherParentProcess
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1800

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

2
T1112

Install Root Certificate

1
T1130

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Windows\rss\csrss.exe
    Filesize

    3.7MB

    MD5

    25352270e16b2f8edf0465daedb85e20

    SHA1

    f180c2435917cf8f8ce7f1f00df9342c8eaa19d8

    SHA256

    86e18b9384f0770bd1581107c17024a6152e671c8b50978cf3b9b91220fe3ed0

    SHA512

    3a62ca288a9665b888ce3e5a5b3e69e48f884f644acc7fc6c6f303c69e11983c70f8f789bd98c86805a9e199656c03a457132154c6f42ffdfb295918a8684091

  • C:\Windows\rss\csrss.exe
    Filesize

    3.7MB

    MD5

    25352270e16b2f8edf0465daedb85e20

    SHA1

    f180c2435917cf8f8ce7f1f00df9342c8eaa19d8

    SHA256

    86e18b9384f0770bd1581107c17024a6152e671c8b50978cf3b9b91220fe3ed0

    SHA512

    3a62ca288a9665b888ce3e5a5b3e69e48f884f644acc7fc6c6f303c69e11983c70f8f789bd98c86805a9e199656c03a457132154c6f42ffdfb295918a8684091

  • memory/680-139-0x0000000000000000-mapping.dmp
  • memory/1232-138-0x0000000000400000-0x0000000003A60000-memory.dmp
    Filesize

    54.4MB

  • memory/1232-144-0x0000000000400000-0x0000000003A60000-memory.dmp
    Filesize

    54.4MB

  • memory/1232-133-0x0000000000000000-mapping.dmp
  • memory/1232-135-0x0000000005742000-0x0000000005AE6000-memory.dmp
    Filesize

    3.6MB

  • memory/1824-137-0x0000000000000000-mapping.dmp
  • memory/4228-134-0x0000000000400000-0x0000000003A60000-memory.dmp
    Filesize

    54.4MB

  • memory/4228-130-0x00000000056C1000-0x0000000005A65000-memory.dmp
    Filesize

    3.6MB

  • memory/4228-132-0x0000000000400000-0x0000000003A60000-memory.dmp
    Filesize

    54.4MB

  • memory/4228-131-0x0000000005A70000-0x000000000615F000-memory.dmp
    Filesize

    6.9MB

  • memory/4372-141-0x0000000000000000-mapping.dmp
  • memory/4372-145-0x0000000005C00000-0x0000000005FA4000-memory.dmp
    Filesize

    3.6MB

  • memory/4372-146-0x0000000000400000-0x0000000003A60000-memory.dmp
    Filesize

    54.4MB

  • memory/4372-147-0x0000000000400000-0x0000000003A60000-memory.dmp
    Filesize

    54.4MB

  • memory/4404-140-0x0000000000000000-mapping.dmp
  • memory/4492-136-0x0000000000000000-mapping.dmp