Malicious PDF — malware analysis report

Static analysis result for SHA-256 87505f1aa2df5d83…

MALICIOUS

PDF

145.0 KB Created: 2022-06-09 01:17:47 +02:00 Authoring application: piergavr (via PDF Master 1.0.1) First seen: 2026-05-04
MD5: 71d832ea6789e9eb61b8b3a63adc69ba SHA-1: d190d95343a25ce29d0d06ec5f544d215fb70034 SHA-256: 87505f1aa2df5d838048af622ce0e47c5cd5fb89d90e073246c93169fdbae63c
184 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0009

Heuristics 6

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • PDF links to a cracked-software download doorway (base64-obfuscated) high PDF_CRACKED_SOFTWARE_DOWNLOAD_DOORWAY
    PDF's embedded link hides a pirated-software title as a base64 blob inside the URL path/query (and/or carries the ``download|`` doorway-template marker), rather than in visible text. This is a TCPDF-generated SEO doorway that ranks for software-piracy searches and funnels users to fake 'crack/keygen' download pages distributing adware, potentially-unwanted programs, or droppers. The base64 encoding is deliberate obfuscation to evade plaintext lure rules; the PDF itself carries no parser exploit — the risk is the linked crack-download destination.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://evacdir.com/fucans/ZG93bmxvYWR8YVk5TlROeWZId3hOalUwTnpJNU56UTJmSHd5TlRrd2ZId29UU2tnVjI5eVpIQnlaWE56SUZ0WVRVeFNVRU1nVmpJZ1VFUkdYUQ/inbreed.eGZvcmNlIGtleWdlbiBSZXZpdCAyMDE5IDY0IGJpdCB3aW5kb3dzIDgeGZ/miken.moro.subprime/sages.twines PDF link annotation
    • https://thelifeofbat.com/wp-content/uploads/2022/06/Green_Lantern_First_Flight_720p_Mkvgolkes.pdfIn PDF document text
    • https://bryophyteportal.org/portal/checklists/checklist.php?clid=14839In PDF document text
    • https://meuconhecimentomeutesouro.com/compilersprinciplestechniquesandtoolssolutionsmanual2ndedition/In PDF document text
    • https://beautyprosnearme.com/wp-content/uploads/2022/06/schnemu.pdfIn PDF document text
    • https://omaamart.com/wp-content/uploads/2022/06/Asalto_Al_Tren_Del_Dinero_Hd_Rip_Vs_1080p.pdfIn PDF document text
    • https://thoitranghalo.com/wp-content/uploads/2022/06/Life_Of_Josutty_Full_Movie_Kickass_21.pdfIn PDF document text
    • http://www.franciscaordegafoundation.com/wp-content/uploads/2022/06/Film_Indonesia_London_Love_Story_Fix.pdfIn PDF document text
    • https://www.gossipposts.com/wp-content/uploads/2022/06/gabrmar.pdfIn PDF document text
    • https://sissycrush.com/upload/files/2022/06/AbLHTJ68KYT9zFbYwuIc_08_c646312af5b83257892f6f9d6ccb701b_file.pdfIn PDF document text
    • https://arabamericanbusinesscommunity.org/wp-content/uploads/2022/06/gonpel.pdfIn PDF document text
    • https://saveourdate.online/wp-content/uploads/2022/06/Farmax_Excursions_On_Density_Pdf_Downloadl.pdfIn PDF document text
    • https://www.conceptpartners.lu/content/uploads/2022/06/jekhane_bhooter_bhoy_full_movie_dvdrip_download_free_67.pdfIn PDF document text
    • https://ztm.hk/���������/max-payne-3-reloaded-rar-password/In PDF document text
    • https://vendredeslivres.com/wp-content/uploads/2022/06/The_Commuter_English_Hindi_Full_Movie_Download.pdfIn PDF document text
    • https://ayusya.in/nayak-dual-audio-in-hindi-720p-movie-updated/In PDF document text
    • https://vietnamnuoctoi.com/upload/files/2022/06/vcJ4aYSbruSlnvZE8GkR_08_0419bf889f806eaac2f1327a81fe63e6_file.pdfIn PDF document text
    • https://www.myshareshow.com/upload/files/2022/06/y6cPyOj5p215lz7prhXp_08_c646312af5b83257892f6f9d6ccb701b_file.pdfIn PDF document text
    • https://thelifeofbat.com/wp-In PDF document text
    • https://meuconhecimentomeutesouro.com/compilersprinciplestechniquesandtoolssolutionsmanIn PDF document text
    • https://omaamart.com/wp-In PDF document text
    • https://thoitranghalo.com/wp-In PDF document text
    • http://www.franciscaordegafoundation.com/wp-In PDF document text
    • https://sissycrush.com/upload/files/2022/06/AbLHTJ68KYT9zFbYwuIc_08_c646312af5b832In PDF document text
    • https://saveourdate.online/wp-In PDF document text
    • https://www.conceptpartners.lu/content/uploads/2022/06/jekhane_bhooter_bhoy_full_movie_dIn PDF document text
    • https://vendredeslivres.com/wp-In PDF document text
    • https://vietnamnuoctoi.com/upload/files/2022/06/vcJ4aYSbruSlnvZE8GkR_08_0419bf889f80In PDF document text
    • https://www.myshareshow.com/upload/files/2022/06/y6cPyOj5p215lz7prhXp_08_c646312af5In PDF document text
    • https://ytpolesent1976.wixsite.com/inpertima/post/free-wallpaper-download-windows-7-themes-computer-full-glass-theme-packIn PDF document text
    • https://paperpage.sgp1.digitaloceanspaces.com/upload/files/2022/06/8qVP6muRQOksNaozzmYx_08_8ad2fd3ce479a3e8ef5db4401777c50d_file.pdfIn PDF document text
    • https://shapshare.com/upload/files/2022/06/ikBtCOG3TCLPRzFj3GKT_08_c646312af5b83257892f6f9d6ccb701b_file.pdfIn PDF document text
    • http://www.tcpdf.orgIn PDF document text
    • https://ytpolesent1976.wixsite.com/inpertima/post/free-wallpaper-download-windows-7-themes-In PDF document text
    • https://paperpage.sgp1.digitaloceanspaces.com/upload/files/2022/06/8qVP6muRQOksNaozzmIn PDF document text
    • https://shapshare.com/upload/files/2022/06/ikBtCOG3TCLPRzFj3GKT_08_c646312af5b832In PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://www.aiim.org/pdfa/ns/extension/In PDF document text
    • http://www.aiim.org/pdfa/ns/schema#In PDF document text
    • http://www.aiim.org/pdfa/ns/property#In PDF document text
    • http://www.aiim.org/pdfa/ns/id/In PDF document text
🗂 Part of campaign: secureserver.net 1471 samples

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off0000196b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x196B 120140 bytes
SHA-256: a217f12862e0ff75203bdd4136ca0d68471050be46bb09aed5306898926ffdd4
font_01_sfnt_off0000c74e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC74E 76772 bytes
SHA-256: 07ce6fea3c98bf59133021be55ce9147f9c26365efe580a2a4f82130ca697f54