Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c7f2f1d4a4f61dc…

MALICIOUS

PDF

82.7 KB Created: 2021-06-30 11:24:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: f0eff4eda07de0bf2492a939635c948e SHA-1: 559a2e3fd3942e738a8d173723797628ce6ff489 SHA-256: 5c7f2f1d4a4f61dca44bb5bfce81ce0e5505f189ff06971ba9067d2386200644
196 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external websites, many of which are hosted on compromised WordPress installations or disposable domains, indicating a link farm designed to distribute malicious content. ClamAV detected this file as Pdf.Phishing.Trojan, and ML classification strongly suggests malicious intent. The embedded links likely lead to phishing pages or further malware downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9833

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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 link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://www.cheapmotorcycleinsurancepa.com/wp-content/plugins/super-forms/uploads/php/files/ndte80g1lq3pltdqo6ltbclip3/jajimugew.pdf In PDF document text
    • https://www.digitalsofts.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c2c7f2e7e74---xorivudurobalabetopowa.pdfIn PDF document text
    • http://qiuyutv.com/userfiles/files/20210610062925.pdfIn PDF document text
    • https://markeishahall.com/wp-content/plugins/super-forms/uploads/php/files/6153de62f6621860c695afd3ac63e7e3/34876155470.pdfIn PDF document text
    • http://agcslohian.com/userfiles/file/ratisu.pdfIn PDF document text
    • https://twr1115.net/files/fckeditor/file/69933726152.pdfIn PDF document text
    • http://birnagarcollege.in/userfiles/file/53248572615.pdfIn PDF document text
    • https://www.webhisto.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160a017772081a---90430481131.pdfIn PDF document text
    • http://www.farparts.cl/wp-content/plugins/formcraft/file-upload/server/content/files/1607c333e00cbb---pumuwetixobomukelaroz.pdfIn PDF document text
    • http://sip7.online/wp-content/plugins/super-forms/uploads/php/files/1d5e8a1f662d0597ac48b3572db3f56d/35927658913.pdfIn PDF document text
    • https://hotelritariccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/160b79a38f2034---38529937068.pdfIn PDF document text
    • http://geology.ie/wp-content/plugins/formcraft/file-upload/server/content/files/16082e71f87f17---17917374217.pdfIn PDF document text
    • https://bindazzled.com.au/wp-content/plugins/super-forms/uploads/php/files/121cf2a23a3eecf0addb8537e2197830/8855606552.pdfIn PDF document text
    • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/hpsc5salchngfoqdeb75rloep1/83273784016.pdfIn PDF document text
    • https://floorco.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/72513b87c268c6600533b67f07196043/21515677076.pdfIn PDF document text
    • http://andreevmag.com/wp-content/plugins/super-forms/uploads/php/files/b5bd63201f180014e5d789f3f2fce93e/wuwozevusedoxu.pdfIn PDF document text
    • https://shayangroup.net/wp-content/plugins/super-forms/uploads/php/files/6c2755738b911ac281af8cfc3e026590/81054103327.pdfIn PDF document text
    • http://abogadosaguilar.com/ckfinder/userfiles/files/87744708889.pdfIn PDF document text
    • http://ff-engineering.com/userfiles/files/vawirudekasasad.pdfIn PDF document text
    • http://autowagon.it/userfiles/files/bivuvewoti.pdfIn PDF document text
    • http://extreamtuning.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1608e8643e3375---tafeguxusevabawomufivoget.pdfIn PDF document text
    • http://islandpointfl.com/userimages/tirepozubifivadugar.pdfIn PDF document text
    • http://biomassasia.net/data_ed/userfiles/file/87744634237.pdfIn PDF document text
    • https://soudurelausiere.ca/upload/editor/file/74729321135.pdfIn PDF document text
    • http://jrpst.pl/userfiles/file/fukifabagodoxebonamiz.pdfIn PDF document text
    • https://brothers-music.com/ckfinder/userfiles/files/34046103912.pdfIn PDF document text
    • http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e4110ac4c2---67478466462.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=year+four+harry+potterPDF link annotation
    • 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/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e162.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE162 17200 bytes
SHA-256: ddf615d43b83e6d9ae293b5a59be947ac7c643d89d9c2f8ce17d087e2f07972c
font_01_sfnt_off00010e3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E3B 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00012652.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12652 10240 bytes
SHA-256: 2b23b94d5e38f50477b5108c87e04bb7e0a80995f39a3483b3ebaf17cf417641

Open this report in the interactive analyzer, or submit your own file for analysis.