Analysis

  • max time kernel
    146s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    11-01-2022 16:21

General

  • Target

    f8fc925d89baa140c9cb436f158ec91209789e9f8e82a0b7252f05587ce8e06f.bin.dll

  • Size

    269KB

  • MD5

    2a4b62f495027dfb6f7549ca7ed7f47b

  • SHA1

    47f6c5aea3b9724f143125f97bf9e8b72faf1a38

  • SHA256

    f8fc925d89baa140c9cb436f158ec91209789e9f8e82a0b7252f05587ce8e06f

  • SHA512

    cc56c0448a138eca87a7fdce1cef67932ff868ea31ead0e342d3f265f92f4b9f91023d3fc01f7123149be469ccbaa2f2fdef950f9336557956ef10b4f36e4f9f

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

n8rn

Decoy

jlvip1066.com

gconsultingfirm.com

foundergomwef.xyz

bredaslo.com

ethereumpets.com

buddymerrillmusic.com

archdeylemmergay.com

particulares-es.icu

gb2022-club.com

babypasal.com

mlikew.com

mskindi.com

securewalletvalidate.com

billstrasse24.com

ritebet388.com

nuhive.net

nekomediphile.com

jaynelsonphotog.com

writerpilotpublishing.store

taquerialoteria.com

Signatures

  • ModiLoader, DBatLoader

    ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.

  • Xloader

    Xloader is a rebranded version of Formbook malware.

  • suricata: ET MALWARE FormBook CnC Checkin (GET)

    suricata: ET MALWARE FormBook CnC Checkin (GET)

  • ModiLoader Second Stage 1 IoCs
  • Xloader Payload 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Modifies registry key 1 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 31 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of WriteProcessMemory 49 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1228
    • C:\Windows\system32\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\f8fc925d89baa140c9cb436f158ec91209789e9f8e82a0b7252f05587ce8e06f.bin.dll,#1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1660
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe C:\Users\Admin\AppData\Local\Temp\f8fc925d89baa140c9cb436f158ec91209789e9f8e82a0b7252f05587ce8e06f.bin.dll,#1
        3⤵
        • Adds Run key to start application
        • Suspicious use of WriteProcessMemory
        PID:1612
        • C:\Windows\SysWOW64\mobsync.exe
          C:\Windows\System32\mobsync.exe
          4⤵
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of AdjustPrivilegeToken
          PID:832
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c ""C:\Users\Public\Trast.bat" "
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:268
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /K C:\Users\Public\UKO.bat
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:1036
            • C:\Windows\SysWOW64\reg.exe
              reg delete hkcu\Environment /v windir /f
              6⤵
              • Modifies registry key
              PID:980
            • C:\Windows\SysWOW64\reg.exe
              reg add hkcu\Environment /v windir /d "cmd /c start /min C:\Users\Public\KDECO.bat reg delete hkcu\Environment /v windir /f && REM "
              6⤵
              • Modifies registry key
              PID:1900
            • C:\Windows\SysWOW64\schtasks.exe
              schtasks /Run /TN \Microsoft\Windows\DiskCleanup\SilentCleanup /I
              6⤵
                PID:1972
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c ""C:\Users\Public\nest.bat" "
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:1548
            • C:\Windows\SysWOW64\reg.exe
              reg delete hkcu\Environment /v windir /f
              5⤵
              • Modifies registry key
              PID:1040
      • C:\Windows\SysWOW64\autochk.exe
        "C:\Windows\SysWOW64\autochk.exe"
        2⤵
          PID:1516
        • C:\Windows\SysWOW64\autofmt.exe
          "C:\Windows\SysWOW64\autofmt.exe"
          2⤵
            PID:976
          • C:\Windows\SysWOW64\autofmt.exe
            "C:\Windows\SysWOW64\autofmt.exe"
            2⤵
              PID:1872
            • C:\Windows\SysWOW64\autofmt.exe
              "C:\Windows\SysWOW64\autofmt.exe"
              2⤵
                PID:396
              • C:\Windows\SysWOW64\autofmt.exe
                "C:\Windows\SysWOW64\autofmt.exe"
                2⤵
                  PID:820
                • C:\Windows\SysWOW64\cmstp.exe
                  "C:\Windows\SysWOW64\cmstp.exe"
                  2⤵
                  • Suspicious use of SetThreadContext
                  • Suspicious behavior: EnumeratesProcesses
                  • Suspicious behavior: MapViewOfSection
                  • Suspicious use of AdjustPrivilegeToken
                  PID:1072

              Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

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              Downloads

              • C:\Users\Public\Trast.bat

                MD5

                4068c9f69fcd8a171c67f81d4a952a54

                SHA1

                4d2536a8c28cdcc17465e20d6693fb9e8e713b36

                SHA256

                24222300c78180b50ed1f8361ba63cb27316ec994c1c9079708a51b4a1a9d810

                SHA512

                a64f9319acc51fffd0491c74dcd9c9084c2783b82f95727e4bfe387a8528c6dcf68f11418e88f1e133d115daf907549c86dd7ad866b2a7938add5225fbb2811d

              • C:\Users\Public\UKO.bat

                MD5

                eaf8d967454c3bbddbf2e05a421411f8

                SHA1

                6170880409b24de75c2dc3d56a506fbff7f6622c

                SHA256

                f35f2658455a2e40f151549a7d6465a836c33fa9109e67623916f889849eac56

                SHA512

                fe5be5c673e99f70c93019d01abb0a29dd2ecf25b2d895190ff551f020c28e7d8f99f65007f440f0f76c5bcac343b2a179a94d190c938ea3b9e1197890a412e9

              • C:\Users\Public\nest.bat

                MD5

                8ada51400b7915de2124baaf75e3414c

                SHA1

                1a7b9db12184ab7fd7fce1c383f9670a00adb081

                SHA256

                45aa3957c29865260a78f03eef18ae9aebdbf7bea751ecc88be4a799f2bb46c7

                SHA512

                9afc138157a4565294ca49942579cdb6f5d8084e56f9354738de62b585f4c0fa3e7f2cbc9541827f2084e3ff36c46eed29b46f5dd2444062ffcd05c599992e68

              • memory/268-64-0x0000000000000000-mapping.dmp

              • memory/832-67-0x0000000000090000-0x0000000000091000-memory.dmp

                Filesize

                4KB

              • memory/832-75-0x0000000000230000-0x0000000000241000-memory.dmp

                Filesize

                68KB

              • memory/832-60-0x0000000000080000-0x0000000000081000-memory.dmp

                Filesize

                4KB

              • memory/832-59-0x0000000072480000-0x00000000724AA000-memory.dmp

                Filesize

                168KB

              • memory/832-74-0x0000000001FA0000-0x00000000022A3000-memory.dmp

                Filesize

                3.0MB

              • memory/832-73-0x0000000072480000-0x00000000724AA000-memory.dmp

                Filesize

                168KB

              • memory/832-62-0x0000000000000000-mapping.dmp

              • memory/832-68-0x0000000072480000-0x00000000724AA000-memory.dmp

                Filesize

                168KB

              • memory/980-70-0x0000000000000000-mapping.dmp

              • memory/1036-66-0x0000000000000000-mapping.dmp

              • memory/1040-84-0x0000000000000000-mapping.dmp

              • memory/1072-79-0x0000000000890000-0x00000000008A8000-memory.dmp

                Filesize

                96KB

              • memory/1072-85-0x0000000000730000-0x00000000007C0000-memory.dmp

                Filesize

                576KB

              • memory/1072-81-0x0000000001FD0000-0x00000000022D3000-memory.dmp

                Filesize

                3.0MB

              • memory/1072-80-0x0000000000090000-0x00000000000B9000-memory.dmp

                Filesize

                164KB

              • memory/1072-77-0x0000000000000000-mapping.dmp

              • memory/1228-86-0x0000000007310000-0x000000000744F000-memory.dmp

                Filesize

                1.2MB

              • memory/1228-76-0x0000000006AC0000-0x0000000006BF4000-memory.dmp

                Filesize

                1.2MB

              • memory/1548-82-0x0000000000000000-mapping.dmp

              • memory/1612-56-0x00000000001A0000-0x00000000001E8000-memory.dmp

                Filesize

                288KB

              • memory/1612-58-0x0000000072481000-0x00000000724A9000-memory.dmp

                Filesize

                160KB

              • memory/1612-57-0x0000000072480000-0x0000000072481000-memory.dmp

                Filesize

                4KB

              • memory/1612-55-0x00000000763F1000-0x00000000763F3000-memory.dmp

                Filesize

                8KB

              • memory/1612-54-0x0000000000000000-mapping.dmp

              • memory/1900-71-0x0000000000000000-mapping.dmp

              • memory/1972-72-0x0000000000000000-mapping.dmp