Analysis

  • max time kernel
    153s
  • max time network
    162s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    28/11/2022, 00:50

General

  • Target

    ae103a988f889f4120a5d21bdf08d4ff41588c26c4efab1c604cab29dc5632a2.exe

  • Size

    178KB

  • MD5

    faca2fb4b7df8b02263be3f101775d8d

  • SHA1

    1ee11a0311a1507b66d76b668eaa1806794692a7

  • SHA256

    ae103a988f889f4120a5d21bdf08d4ff41588c26c4efab1c604cab29dc5632a2

  • SHA512

    3f8dd1204b45afb76df8137f1a46a40a6b53c3bf98b80959724d27bc1da1e1e48fb28c18ebbb4940b30ac6b98e1b04f4ccb937e7a9b836802bfbea903a88ff7c

  • SSDEEP

    3072:knSQXMYrEDcw6d5QWBhf7RBkDuaad402UlVDYJ5V2RBB2Wk2:mDEDcwdYJRBSuld40vYJ5yB

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 2 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 WriteProcessMemory 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ae103a988f889f4120a5d21bdf08d4ff41588c26c4efab1c604cab29dc5632a2.exe
    "C:\Users\Admin\AppData\Local\Temp\ae103a988f889f4120a5d21bdf08d4ff41588c26c4efab1c604cab29dc5632a2.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1472
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qzqeojgo\
      2⤵
        PID:1164
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ntgbuboj.exe" C:\Windows\SysWOW64\qzqeojgo\
        2⤵
          PID:1108
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" create qzqeojgo binPath= "C:\Windows\SysWOW64\qzqeojgo\ntgbuboj.exe /d\"C:\Users\Admin\AppData\Local\Temp\ae103a988f889f4120a5d21bdf08d4ff41588c26c4efab1c604cab29dc5632a2.exe\"" type= own start= auto DisplayName= "wifi support"
          2⤵
          • Launches sc.exe
          PID:940
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" description qzqeojgo "wifi internet conection"
          2⤵
          • Launches sc.exe
          PID:1340
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" start qzqeojgo
          2⤵
          • Launches sc.exe
          PID:520
        • 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:720
      • C:\Windows\SysWOW64\qzqeojgo\ntgbuboj.exe
        C:\Windows\SysWOW64\qzqeojgo\ntgbuboj.exe /d"C:\Users\Admin\AppData\Local\Temp\ae103a988f889f4120a5d21bdf08d4ff41588c26c4efab1c604cab29dc5632a2.exe"
        1⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1252
        • 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:1532
          • C:\Windows\SysWOW64\svchost.exe
            svchost.exe -o fastpool.xyz:10060 -u 9mLwUkiK8Yp89zQQYodWKN29jVVVz1cWDFZctWxge16Zi3TpHnSBnnVcCDhSRXdesnMBdVjtDwh1N71KD9z37EzgKSM1tmS.60000 -p x -k -a cn/half
            3⤵
              PID:1296

        Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

              Loading Replay Monitor...

              Downloads

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

                Filesize

                10.9MB

                MD5

                2ac2380cd58580e069a315665cd14c54

                SHA1

                140bd50f6c25f4353cf4632ec37a5bed7fe9ecf0

                SHA256

                d2c1f7c3a931726fe41cbc3ff78a943f811ac774198ed648a46a84f859780a18

                SHA512

                1668a2941ad4d03e4604fced3d2543b7566a28e27cecd3c6bde93bf23654683d85e79ac4e3a1493d2f3624bd85e55a446d90484165ae35c76cb5b48ad4659be0

              • C:\Windows\SysWOW64\qzqeojgo\ntgbuboj.exe

                Filesize

                10.9MB

                MD5

                2ac2380cd58580e069a315665cd14c54

                SHA1

                140bd50f6c25f4353cf4632ec37a5bed7fe9ecf0

                SHA256

                d2c1f7c3a931726fe41cbc3ff78a943f811ac774198ed648a46a84f859780a18

                SHA512

                1668a2941ad4d03e4604fced3d2543b7566a28e27cecd3c6bde93bf23654683d85e79ac4e3a1493d2f3624bd85e55a446d90484165ae35c76cb5b48ad4659be0

              • memory/1252-75-0x0000000000400000-0x000000000070E000-memory.dmp

                Filesize

                3.1MB

              • memory/1252-76-0x000000000085B000-0x000000000086C000-memory.dmp

                Filesize

                68KB

              • memory/1296-103-0x0000000000320000-0x0000000000411000-memory.dmp

                Filesize

                964KB

              • memory/1296-101-0x0000000000320000-0x0000000000411000-memory.dmp

                Filesize

                964KB

              • memory/1472-64-0x00000000002A0000-0x00000000002B3000-memory.dmp

                Filesize

                76KB

              • memory/1472-69-0x000000000079B000-0x00000000007AC000-memory.dmp

                Filesize

                68KB

              • memory/1472-70-0x0000000000400000-0x000000000070E000-memory.dmp

                Filesize

                3.1MB

              • memory/1472-54-0x000000000079B000-0x00000000007AC000-memory.dmp

                Filesize

                68KB

              • memory/1472-63-0x000000000079B000-0x00000000007AC000-memory.dmp

                Filesize

                68KB

              • memory/1472-57-0x0000000000400000-0x000000000070E000-memory.dmp

                Filesize

                3.1MB

              • memory/1472-56-0x0000000074C11000-0x0000000074C13000-memory.dmp

                Filesize

                8KB

              • memory/1472-55-0x00000000002A0000-0x00000000002B3000-memory.dmp

                Filesize

                76KB

              • memory/1532-71-0x0000000000080000-0x0000000000095000-memory.dmp

                Filesize

                84KB

              • memory/1532-82-0x0000000000080000-0x0000000000095000-memory.dmp

                Filesize

                84KB

              • memory/1532-83-0x0000000001950000-0x0000000001B5F000-memory.dmp

                Filesize

                2.1MB

              • memory/1532-86-0x00000000000A0000-0x00000000000A6000-memory.dmp

                Filesize

                24KB

              • memory/1532-89-0x00000000000B0000-0x00000000000C0000-memory.dmp

                Filesize

                64KB

              • memory/1532-92-0x00000000000C0000-0x00000000000C5000-memory.dmp

                Filesize

                20KB

              • memory/1532-95-0x00000000055B0000-0x00000000059BB000-memory.dmp

                Filesize

                4.0MB

              • memory/1532-98-0x0000000000130000-0x0000000000137000-memory.dmp

                Filesize

                28KB

              • memory/1532-80-0x0000000000080000-0x0000000000095000-memory.dmp

                Filesize

                84KB

              • memory/1532-73-0x0000000000080000-0x0000000000095000-memory.dmp

                Filesize

                84KB