Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    31-08-2024 06:58

General

  • Target

    d29a3b017f6a864c855fca570073d822bb37a77006467b8a75f04ce7edcbfedc.exe

  • Size

    14.5MB

  • MD5

    dc63c79c3f7bc083812b8e8f47c44902

  • SHA1

    640329ba407b6ed8482d2d5e0d082847451a7d37

  • SHA256

    d29a3b017f6a864c855fca570073d822bb37a77006467b8a75f04ce7edcbfedc

  • SHA512

    5610cb53a6274f62be4e9341f6eb0fda3e28ccb4f69b344b63c4a531f9044ca758519f89aacc5d312624962606e80333ae38fab9ea84e453513c7f754e6b2534

  • SSDEEP

    12288:OZlC6v/5oQU6buXH53333333333333333333333333333333333333333333333n:ObjvluXH

Malware Config

Extracted

Family

tofsee

C2

defeatwax.ru

refabyd.info

Signatures

  • Tofsee

    Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

  • Windows security bypass 2 TTPs 1 IoCs
  • Creates new service(s) 2 TTPs
  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Sets service image path in registry 2 TTPs 1 IoCs
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Launches sc.exe 3 IoCs

    Sc.exe is a Windows utlilty to control services on the system.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • 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 9 IoCs

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

  • Suspicious use of WriteProcessMemory 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d29a3b017f6a864c855fca570073d822bb37a77006467b8a75f04ce7edcbfedc.exe
    "C:\Users\Admin\AppData\Local\Temp\d29a3b017f6a864c855fca570073d822bb37a77006467b8a75f04ce7edcbfedc.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2776
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\gaxpfujz\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2788
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qxvglgui.exe" C:\Windows\SysWOW64\gaxpfujz\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2836
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create gaxpfujz binPath= "C:\Windows\SysWOW64\gaxpfujz\qxvglgui.exe /d\"C:\Users\Admin\AppData\Local\Temp\d29a3b017f6a864c855fca570073d822bb37a77006467b8a75f04ce7edcbfedc.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2932
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description gaxpfujz "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2904
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start gaxpfujz
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2168
    • C:\Windows\SysWOW64\netsh.exe
      "C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul
      2⤵
      • Modifies Windows Firewall
      • Event Triggered Execution: Netsh Helper DLL
      • System Location Discovery: System Language Discovery
      PID:3040
  • C:\Windows\SysWOW64\gaxpfujz\qxvglgui.exe
    C:\Windows\SysWOW64\gaxpfujz\qxvglgui.exe /d"C:\Users\Admin\AppData\Local\Temp\d29a3b017f6a864c855fca570073d822bb37a77006467b8a75f04ce7edcbfedc.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2724
    • C:\Windows\SysWOW64\svchost.exe
      svchost.exe
      2⤵
      • Windows security bypass
      • Sets service image path in registry
      • Deletes itself
      • System Location Discovery: System Language Discovery
      PID:2008

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\qxvglgui.exe

    Filesize

    14.0MB

    MD5

    dbdc706a9f1e342f0c356ca8aee38092

    SHA1

    e7945004c4503cfc4b4d86578887ca5d235fa165

    SHA256

    30ddba331b53e4d4033dc0847ff7dfb328a0061ad3ccb4ec18a6029747affd5a

    SHA512

    593b558d7fd8c90bcc944e51b23b89c1ee6d29ae11d5ab74cadf35f67c54234272fabc0e3409eb6e1bf20351eaf684a78b8ffc62d55d26f02671de9b88ed558a

  • memory/2008-11-0x0000000000100000-0x0000000000115000-memory.dmp

    Filesize

    84KB

  • memory/2008-14-0x0000000000100000-0x0000000000115000-memory.dmp

    Filesize

    84KB

  • memory/2008-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2008-16-0x0000000000100000-0x0000000000115000-memory.dmp

    Filesize

    84KB

  • memory/2008-17-0x0000000000100000-0x0000000000115000-memory.dmp

    Filesize

    84KB

  • memory/2008-18-0x0000000000100000-0x0000000000115000-memory.dmp

    Filesize

    84KB

  • memory/2724-15-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/2776-3-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2776-1-0x0000000000230000-0x0000000000330000-memory.dmp

    Filesize

    1024KB

  • memory/2776-7-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/2776-9-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2776-8-0x0000000000020000-0x0000000000033000-memory.dmp

    Filesize

    76KB

  • memory/2776-2-0x0000000000020000-0x0000000000033000-memory.dmp

    Filesize

    76KB