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Overview

overview

10

Static

static

1

file.exe

windows7-x64

10

file.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    08/02/2023, 13:34

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General

  • Target

    file.exe

  • Size

    314KB

  • MD5

    01a3c4df7bcd2d3a71c4509c3fd0b2a9

  • SHA1

    36970dee1e367f341debb313d9182ea6ab9fcfe1

  • SHA256

    14a7c5a5c66dc73b5a170f2f43fba2e97c0139fe1456ec56fb5857eb673d973d

  • SHA512

    3f4a6f1c8b0c8ec5d2de60133ddbf7852bb342cf78172bc178b4ea2a0d68f4da808fb7e1e92155212a86589c602f514b34ab19a459c6bc58a5a3e4a12c67848a

  • SSDEEP

    3072:kwUAV7D+B71hJdONp0FX+sKucBOjEtnF5/ESBmO7ARLStKRxhUwscNr:kFA98zTypEOlVwEvESoRgtKBDr

Score
10/10
tofseexmrigevasionminerpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

svartalfheim.top

jotunheim.name

Signatures

  • Tofsee

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

    trojantofsee
  • Windows security bypass 2 TTPs 1 IoCs
    evasiontrojan
  • xmrig

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

    minerxmrig
  • XMRig Miner payload 2 IoCs
    miner
  • Creates new service(s) 1 TTPs
    persistence
  • Modifies Windows Firewall 1 TTPs 1 IoCs
    evasion
  • Sets service image path in registry 2 TTPs 1 IoCs
    persistence
  • 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). Likely ransomware behaviour.

  • 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:1228
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ctpdazox\
      2⤵
        PID:1428
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qnhifndk.exe" C:\Windows\SysWOW64\ctpdazox\
        2⤵
          PID:580
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" create ctpdazox binPath= "C:\Windows\SysWOW64\ctpdazox\qnhifndk.exe /d\"C:\Users\Admin\AppData\Local\Temp\file.exe\"" type= own start= auto DisplayName= "wifi support"
          2⤵
          • Launches sc.exe
          PID:1776
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" description ctpdazox "wifi internet conection"
          2⤵
          • Launches sc.exe
          PID:768
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" start ctpdazox
          2⤵
          • Launches sc.exe
          PID:536
        • 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:1128
      • C:\Windows\SysWOW64\ctpdazox\qnhifndk.exe
        C:\Windows\SysWOW64\ctpdazox\qnhifndk.exe /d"C:\Users\Admin\AppData\Local\Temp\file.exe"
        1⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:344
        • 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:1156
          • C:\Windows\SysWOW64\svchost.exe
            svchost.exe -o fastpool.xyz:10060 -u 9mLwUkiK8Yp89zQQYodWKN29jVVVz1cWDFZctWxge16Zi3TpHnSBnnVcCDhSRXdesnMBdVjtDwh1N71KD9z37EzgKSM1tmS.60000 -p x -k -a cn/half
            3⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:948

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Temp\qnhifndk.exe
        Filesize

        14.7MB

        MD5

        6c99abb8bb87b07572cf2ea3c8bc04b9

        SHA1

        d4be70798b402bebd733ffdbe52b2b71ba4e7456

        SHA256

        b3af896e006c2d43e893107effbb7bab77e000afffee70683a95d45aa6fc419b

        SHA512

        6f3ee29e1eb640b77fbb5b4f0747c9036e92d7a927bb76ae54a1ad64c81c88be438a3eb3432fa33b285fedbb053ecaad060467b27a0ad321aa9c1277c8165258

        Download Submit

      • C:\Windows\SysWOW64\ctpdazox\qnhifndk.exe
        Filesize

        14.7MB

        MD5

        6c99abb8bb87b07572cf2ea3c8bc04b9

        SHA1

        d4be70798b402bebd733ffdbe52b2b71ba4e7456

        SHA256

        b3af896e006c2d43e893107effbb7bab77e000afffee70683a95d45aa6fc419b

        SHA512

        6f3ee29e1eb640b77fbb5b4f0747c9036e92d7a927bb76ae54a1ad64c81c88be438a3eb3432fa33b285fedbb053ecaad060467b27a0ad321aa9c1277c8165258

        Download Submit

      • memory/344-77-0x0000000000400000-0x00000000004CA000-memory.dmp

        Filesize

        808KB

        Download

      • memory/344-75-0x000000000063C000-0x0000000000651000-memory.dmp

        Filesize

        84KB

        Download

      • memory/948-101-0x00000000000D0000-0x00000000001C1000-memory.dmp

        Filesize

        964KB

        Download

      • memory/948-99-0x00000000000D0000-0x00000000001C1000-memory.dmp

        Filesize

        964KB

        Download

      • memory/1156-83-0x00000000000A0000-0x00000000000A6000-memory.dmp

        Filesize

        24KB

        Download

      • memory/1156-80-0x0000000001920000-0x0000000001B2F000-memory.dmp

        Filesize

        2.1MB

        Download

      • memory/1156-98-0x0000000000080000-0x0000000000095000-memory.dmp

        Filesize

        84KB

        Download

      • memory/1156-70-0x0000000000080000-0x0000000000095000-memory.dmp

        Filesize

        84KB

        Download

      • memory/1156-72-0x0000000000080000-0x0000000000095000-memory.dmp

        Filesize

        84KB

        Download

      • memory/1156-95-0x0000000000210000-0x0000000000217000-memory.dmp

        Filesize

        28KB

        Download

      • memory/1156-92-0x00000000053F0000-0x00000000057FB000-memory.dmp

        Filesize

        4.0MB

        Download

      • memory/1156-79-0x0000000000080000-0x0000000000095000-memory.dmp

        Filesize

        84KB

        Download

      • memory/1156-89-0x0000000000200000-0x0000000000205000-memory.dmp

        Filesize

        20KB

        Download

      • memory/1156-86-0x00000000000B0000-0x00000000000C0000-memory.dmp

        Filesize

        64KB

        Download

      • memory/1228-54-0x0000000075A11000-0x0000000075A13000-memory.dmp

        Filesize

        8KB

        Download

      • memory/1228-66-0x0000000000400000-0x00000000004CA000-memory.dmp

        Filesize

        808KB

        Download

      • memory/1228-58-0x0000000000400000-0x00000000004CA000-memory.dmp

        Filesize

        808KB

        Download

      • memory/1228-65-0x00000000006BC000-0x00000000006D1000-memory.dmp

        Filesize

        84KB

        Download

      • memory/1228-57-0x0000000000220000-0x0000000000233000-memory.dmp

        Filesize

        76KB

        Download

      • memory/1228-56-0x00000000006BC000-0x00000000006D1000-memory.dmp

        Filesize

        84KB

        Download