Analysis

  • max time kernel
    91s
  • max time network
    130s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-09-2024 13:46

General

  • Target

    Contact Form and Delivery Details ,pdf.cmd

  • Size

    5.2MB

  • MD5

    dae81f363f99949156f1c31c9dd6480e

  • SHA1

    2ffe41540931d2a0b900cbd6c2eb647ff423e0e1

  • SHA256

    0add1ad58198be03778337643872e63eae3e9d241dd0d53d46d6520e171160de

  • SHA512

    124d854598ef002270a94553c0c14d61046b14a3c67feb2a6277e412705bb1f1900bd7b9c3db3ecd9b3572d52a0016939d191c2c8b3f7504e5e9e362893cf1f9

  • SSDEEP

    49152:+mcXgXK1tns5RIWsiDvcZPKnZLrKFVrrz1Xqr+LM9mfFhCA:K

Malware Config

Signatures

  • ModiLoader, DBatLoader

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

  • ModiLoader Second Stage 1 IoCs
  • Executes dropped EXE 17 IoCs
  • Loads dropped DLL 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 10 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Script User-Agent 2 IoCs

    Uses user-agent string associated with script host/environment.

  • Suspicious behavior: EnumeratesProcesses 18 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 61 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\Contact Form and Delivery Details ,pdf.cmd"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:212
    • C:\Windows\System32\extrac32.exe
      C:\\Windows\\System32\\extrac32 /C /Y C:\\Windows\\System32\\cmd.exe "C:\\Users\\Public\\alpha.exe"
      2⤵
        PID:4412
      • C:\Users\Public\alpha.exe
        C:\\Users\\Public\\alpha /c extrac32 /C /Y C:\\Windows\\System32\\certutil.exe C:\\Users\\Public\\kn.exe
        2⤵
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        PID:4596
        • C:\Windows\system32\extrac32.exe
          extrac32 /C /Y C:\\Windows\\System32\\certutil.exe C:\\Users\\Public\\kn.exe
          3⤵
            PID:4204
        • C:\Users\Public\alpha.exe
          C:\\Users\\Public\\alpha /c C:\\Users\\Public\\kn -decodehex -F "C:\Users\Admin\AppData\Local\Temp\Contact Form and Delivery Details ,pdf.cmd" "C:\\Users\\Public\\spoolsv.MPEG" 3
          2⤵
          • Executes dropped EXE
          • Suspicious use of WriteProcessMemory
          PID:3476
          • C:\Users\Public\kn.exe
            C:\\Users\\Public\\kn -decodehex -F "C:\Users\Admin\AppData\Local\Temp\Contact Form and Delivery Details ,pdf.cmd" "C:\\Users\\Public\\spoolsv.MPEG" 3
            3⤵
            • Executes dropped EXE
            PID:1564
        • C:\Users\Public\alpha.exe
          C:\\Users\\Public\\alpha /c C:\\Users\\Public\\kn -decodehex -F "C:\\Users\\Public\\spoolsv.MPEG" "C:\\Users\\Public\\Libraries\\spoolsv.COM" 10
          2⤵
          • Executes dropped EXE
          • Suspicious use of WriteProcessMemory
          PID:2804
          • C:\Users\Public\kn.exe
            C:\\Users\\Public\\kn -decodehex -F "C:\\Users\\Public\\spoolsv.MPEG" "C:\\Users\\Public\\Libraries\\spoolsv.COM" 10
            3⤵
            • Executes dropped EXE
            PID:2252
        • C:\Users\Public\Libraries\spoolsv.COM
          C:\Users\Public\Libraries\spoolsv.COM
          2⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:2148
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Public\Libraries\buoxbwaQ.cmd" "
            3⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:388
            • C:\Windows\SysWOW64\esentutl.exe
              C:\\Windows\\System32\\esentutl /y C:\\Windows\\System32\\cmd.exe /d C:\\Users\\Public\\alpha.pif /o
              4⤵
                PID:1328
              • C:\Windows\SysWOW64\esentutl.exe
                C:\\Windows\\System32\\esentutl /y C:\\Windows\\System32\\ping.exe /d C:\\Users\\Public\\xpha.pif /o
                4⤵
                • System Network Configuration Discovery: Internet Connection Discovery
                PID:4184
              • C:\Users\Public\alpha.pif
                C:\\Users\\Public\\alpha.pif /c mkdir "\\?\C:\Windows "
                4⤵
                • Executes dropped EXE
                • System Location Discovery: System Language Discovery
                PID:904
              • C:\Users\Public\alpha.pif
                C:\\Users\\Public\\alpha.pif /c mkdir "\\?\C:\Windows \SysWOW64"
                4⤵
                • Executes dropped EXE
                • System Location Discovery: System Language Discovery
                PID:1448
              • C:\Users\Public\alpha.pif
                C:\\Users\\Public\\alpha.pif /c C:\\Users\\Public\\xpha.pif 127.0.0.1 -n 10
                4⤵
                • Executes dropped EXE
                • System Location Discovery: System Language Discovery
                • Suspicious use of WriteProcessMemory
                PID:3472
                • C:\Users\Public\xpha.pif
                  C:\\Users\\Public\\xpha.pif 127.0.0.1 -n 10
                  5⤵
                  • Executes dropped EXE
                  • System Location Discovery: System Language Discovery
                  PID:3908
              • C:\Windows \SysWOW64\per.exe
                "C:\\Windows \\SysWOW64\\per.exe
                4⤵
                • Executes dropped EXE
                • Loads dropped DLL
                • Suspicious use of WriteProcessMemory
                PID:1688
                • C:\Windows\SYSTEM32\esentutl.exe
                  esentutl /y C:\\Windows\\System32\\WindowsPowerShell\\v1.0\\powershell.exe /d C:\\Users\\Public\\pha.pif /o
                  5⤵
                    PID:4424
                  • C:\Users\Public\pha.pif
                    C:\\Users\\Public\\pha.pif -WindowStyle hidden -Command Add-MpPreference -ExclusionExtension '.exe','bat','.pif'
                    5⤵
                    • Executes dropped EXE
                    • Suspicious behavior: EnumeratesProcesses
                    • Suspicious use of AdjustPrivilegeToken
                    PID:3624
                • C:\Users\Public\alpha.pif
                  C:\\Users\\Public\\alpha.pif /c del "C:\Users\Public\xpha.pif"
                  4⤵
                  • Executes dropped EXE
                  • System Location Discovery: System Language Discovery
                  PID:4276
                • C:\Users\Public\alpha.pif
                  C:\\Users\\Public\\alpha.pif /c rmdir "C:\Windows \SysWOW64
                  4⤵
                  • Executes dropped EXE
                  • System Location Discovery: System Language Discovery
                  PID:4784
                • C:\Users\Public\alpha.pif
                  C:\\Users\\Public\\alpha.pif /c rmdir "C:\Windows \"
                  4⤵
                  • Executes dropped EXE
                  • System Location Discovery: System Language Discovery
                  PID:3952
              • C:\Windows\SysWOW64\colorcpl.exe
                C:\Windows\System32\colorcpl.exe
                3⤵
                • System Location Discovery: System Language Discovery
                • Suspicious behavior: EnumeratesProcesses
                PID:1496
            • C:\Users\Public\alpha.exe
              C:\\Users\\Public\\alpha /c del /q "C:\Users\Public\kn.exe" / A / F / Q / S
              2⤵
              • Executes dropped EXE
              PID:960
            • C:\Users\Public\alpha.exe
              C:\\Users\\Public\\alpha /c del /q "C:\Users\Public\spoolsv.MPEG" / A / F / Q / S
              2⤵
              • Executes dropped EXE
              PID:4992

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_yalcbwd4.0ez.ps1

            Filesize

            60B

            MD5

            d17fe0a3f47be24a6453e9ef58c94641

            SHA1

            6ab83620379fc69f80c0242105ddffd7d98d5d9d

            SHA256

            96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

            SHA512

            5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

          • C:\Users\Public\Libraries\buoxbwaQ.cmd

            Filesize

            60KB

            MD5

            b87f096cbc25570329e2bb59fee57580

            SHA1

            d281d1bf37b4fb46f90973afc65eece3908532b2

            SHA256

            d08ccc9b1e3acc205fe754bad8416964e9711815e9ceed5e6af73d8e9035ec9e

            SHA512

            72901adde38f50cf6d74743c0a546c0fea8b1cd4a18449048a0758a7593a176fc33aad1ebfd955775eefc2b30532bcc18e4f2964b3731b668dd87d94405951f7

          • C:\Users\Public\Libraries\spoolsv.COM

            Filesize

            1.0MB

            MD5

            0e35955f135994854022ef1c58b7c988

            SHA1

            bac1f7fd7b8f521b0ed7699b5708690be54bd2ba

            SHA256

            2c56c58c67933df1634e2bacdcc95a9bd43919c655c847d26728cf4af3a3e7f5

            SHA512

            fe8ce8f060f67d76401620e2832dbc3db1a570d679f04ec7f5ecf43073acf52993b5c7795fe5f7caeb3f0a33feade85161f3d2a0dda286b365d0b0eb9e0fa9b5

          • C:\Users\Public\alpha.exe

            Filesize

            283KB

            MD5

            8a2122e8162dbef04694b9c3e0b6cdee

            SHA1

            f1efb0fddc156e4c61c5f78a54700e4e7984d55d

            SHA256

            b99d61d874728edc0918ca0eb10eab93d381e7367e377406e65963366c874450

            SHA512

            99e784141193275d4364ba1b8762b07cc150ca3cb7e9aa1d4386ba1fa87e073d0500e61572f8d1b071f2faa2a51bb123e12d9d07054b59a1a2fd768ad9f24397

          • C:\Users\Public\alpha.pif

            Filesize

            231KB

            MD5

            d0fce3afa6aa1d58ce9fa336cc2b675b

            SHA1

            4048488de6ba4bfef9edf103755519f1f762668f

            SHA256

            4d89fc34d5f0f9babd022271c585a9477bf41e834e46b991deaa0530fdb25e22

            SHA512

            80e127ef81752cd50f9ea2d662dc4d3bf8db8d29680e75fa5fc406ca22cafa5c4d89ef2eac65b486413d3cdd57a2c12a1cb75f65d1e312a717d262265736d1c2

          • C:\Users\Public\kn.exe

            Filesize

            1.6MB

            MD5

            bd8d9943a9b1def98eb83e0fa48796c2

            SHA1

            70e89852f023ab7cde0173eda1208dbb580f1e4f

            SHA256

            8de7b4eb1301d6cbe4ea2c8d13b83280453eb64e3b3c80756bbd1560d65ca4d2

            SHA512

            95630fdddad5db60cc97ec76ee1ca02dbb00ee3de7d6957ecda8968570e067ab2a9df1cc07a3ce61161a994acbe8417c83661320b54d04609818009a82552f7b

          • C:\Users\Public\pha.pif

            Filesize

            442KB

            MD5

            04029e121a0cfa5991749937dd22a1d9

            SHA1

            f43d9bb316e30ae1a3494ac5b0624f6bea1bf054

            SHA256

            9f914d42706fe215501044acd85a32d58aaef1419d404fddfa5d3b48f66ccd9f

            SHA512

            6a2fb055473033fd8fdb8868823442875b5b60c115031aaeda688a35a092f6278e8687e2ae2b8dc097f8f3f35d23959757bf0c408274a2ef5f40ddfa4b5c851b

          • C:\Users\Public\spoolsv.MPEG

            Filesize

            3.7MB

            MD5

            6870966726b7ebf72d50503ebd4dc2b6

            SHA1

            58866a2a3f014130ebdf03ffc24829c40b0f84f7

            SHA256

            3d1c5b0859c0481df28379625c08331c2d72e5abaf781255fce4e054fa94b7f6

            SHA512

            ca5c6551554ea73ec4c8331aede7cc0242c50380c66edde6f9ac0fbc8a2f75891f3f6e1bb19cbdbe163a5d0dff1447016ead22947a2ea665df483c2929f98859

          • C:\Users\Public\xpha.pif

            Filesize

            18KB

            MD5

            b3624dd758ccecf93a1226cef252ca12

            SHA1

            fcf4dad8c4ad101504b1bf47cbbddbac36b558a7

            SHA256

            4aaa74f294c15aeb37ada8185d0dead58bd87276a01a814abc0c4b40545bf2ef

            SHA512

            c613d18511b00fa25fc7b1bdde10d96debb42a99b5aaab9e9826538d0e229085bb371f0197f6b1086c4f9c605f01e71287ffc5442f701a95d67c232a5f031838

          • C:\Windows \SysWOW64\NETUTILS.dll

            Filesize

            115KB

            MD5

            24288128904256e23517b0eb198ca4d9

            SHA1

            421e52cbd7043dda9960575c8ecf572748033ddb

            SHA256

            701f49cccf4fee58e042914518e90eeff05ef28c8a5eb043a8ecc721fdcf2571

            SHA512

            cd11a703470b376e65649808a48cebba82f088095bfabb95f856995b7d85ff442832df5eae07b02b67bb8eec34b69dbbe0b5deaca15b79b39823527842ce4313

          • C:\Windows \SysWOW64\per.exe

            Filesize

            94KB

            MD5

            869640d0a3f838694ab4dfea9e2f544d

            SHA1

            bdc42b280446ba53624ff23f314aadb861566832

            SHA256

            0db4d3ffdb96d13cf3b427af8be66d985728c55ae254e4b67d287797e4c0b323

            SHA512

            6e775cfb350415434b18427d5ff79b930ed3b0b3fc3466bc195a796c95661d4696f2d662dd0e020c3a6c3419c2734468b1d7546712ecec868d2bbfd2bc2468a7

          • memory/1328-38-0x0000000000FB0000-0x0000000000FC0000-memory.dmp

            Filesize

            64KB

          • memory/1328-61-0x00000000013D0000-0x00000000013E0000-memory.dmp

            Filesize

            64KB

          • memory/2148-32-0x0000000000400000-0x0000000000516000-memory.dmp

            Filesize

            1.1MB

          • memory/2148-29-0x0000000002C20000-0x0000000003C20000-memory.dmp

            Filesize

            16.0MB

          • memory/2148-28-0x0000000002C20000-0x0000000003C20000-memory.dmp

            Filesize

            16.0MB

          • memory/3624-155-0x000001CE9C420000-0x000001CE9C442000-memory.dmp

            Filesize

            136KB