Analysis

  • max time kernel
    149s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    31-08-2024 05:13

General

  • Target

    072e795c44b87d1eb54005be791e75db47cb9717e43b300d3e27b6c9d99523fd.exe

  • Size

    13.6MB

  • MD5

    b5b559ae20ec80c26ec50afd2d077f53

  • SHA1

    4553fc5937302711ee5e74a881c7fd4acd119e5b

  • SHA256

    072e795c44b87d1eb54005be791e75db47cb9717e43b300d3e27b6c9d99523fd

  • SHA512

    dadb525483641f1574c5efcb48cc2c1333d34145b1b7e6386afa9f3e64db7ce45bbe4fc70f2656a997ec42e839bc73cb4c641bd97061e95d712c476f5573cdfd

  • SSDEEP

    196608:aI+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++2:a

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\072e795c44b87d1eb54005be791e75db47cb9717e43b300d3e27b6c9d99523fd.exe
    "C:\Users\Admin\AppData\Local\Temp\072e795c44b87d1eb54005be791e75db47cb9717e43b300d3e27b6c9d99523fd.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1848
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\vziqrtdq\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2780
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qtrmgnxh.exe" C:\Windows\SysWOW64\vziqrtdq\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2772
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create vziqrtdq binPath= "C:\Windows\SysWOW64\vziqrtdq\qtrmgnxh.exe /d\"C:\Users\Admin\AppData\Local\Temp\072e795c44b87d1eb54005be791e75db47cb9717e43b300d3e27b6c9d99523fd.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2372
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description vziqrtdq "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2108
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start vziqrtdq
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2656
    • 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:2564
  • C:\Windows\SysWOW64\vziqrtdq\qtrmgnxh.exe
    C:\Windows\SysWOW64\vziqrtdq\qtrmgnxh.exe /d"C:\Users\Admin\AppData\Local\Temp\072e795c44b87d1eb54005be791e75db47cb9717e43b300d3e27b6c9d99523fd.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2544
    • 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:1788

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    12.8MB

    MD5

    ab0059da90393f4fc4c2426218fb257e

    SHA1

    40c1160821a06a925c1d49bc5c8f522a4987fb47

    SHA256

    f5cacd76a7cc49cbf3f72e0b1f7c8c72b4c4ef10f3bf26ccd10f7ffc81eca8bd

    SHA512

    4b7b2f20fc5d1a0ae0625d09c8ad675590f1cd97b37483e6d47a1143fcb9d6470f936bda5cc68fcf71f782b1e8ac242381c3fc1c1cf07060bfe38c0f66be227c

  • memory/1788-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1788-16-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/1788-14-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/1788-11-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/1788-18-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/1848-3-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/1848-2-0x0000000000020000-0x0000000000033000-memory.dmp

    Filesize

    76KB

  • memory/1848-10-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/1848-9-0x0000000000020000-0x0000000000033000-memory.dmp

    Filesize

    76KB

  • memory/1848-8-0x0000000000400000-0x0000000000870000-memory.dmp

    Filesize

    4.4MB

  • memory/1848-1-0x0000000000270000-0x0000000000370000-memory.dmp

    Filesize

    1024KB

  • memory/2544-17-0x0000000000400000-0x0000000000870000-memory.dmp

    Filesize

    4.4MB