Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab867a804ecce463…

MALICIOUS

PDF

69.7 KB Created: 2021-02-19 13:09:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 0ec059887fb065d120d11d6c31c781ba SHA-1: 97c2ad289be6f8e65ea34b6f02cd7c86d332a67c SHA-256: ab867a804ecce463b13b1d51b76ff75ac7334f1e0cedf8b4c48b678f3e03eba9
166 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a phishing or trojan threat. It contains multiple external URIs, with a high-confidence heuristic specifically identifying an invisible link to a suspicious domain, likely intended to redirect users to malicious content. The document body, though truncated, includes a search query related to religious revelation, suggesting a lure to exploit user curiosity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Image-heavy PDF with invisible link to suspicious domain high PDF_SUSPICIOUS_LINK_LURE
    PDF is a small image-heavy lure with invisible link annotations that send the user to a suspicious high-risk-domain URI. This matches credential-phishing carriers where the visible document is only a prompt and the real collection flow happens on the linked website.
  • 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 https://druttle.ru/strik?utm_term=how+do+i+get+revelation+from+god PDF link annotation
    • http://honbiz.pro/temasulafuvuwudegm9es5.pdfIn PDF document text
    • http://nigma24invest.online/11450824035phlep.pdfIn PDF document text
    • http://boxberry-24.cc/rosoxafipiv0bc62.pdfIn PDF document text
    • http://coloradocustomelectric.com/24496533164rd3gj.pdfIn PDF document text
    • http://didezidise.22web.org/48079617366.pdfIn PDF document text
    • http://runolive.com/sijoje90d1u.pdfIn PDF document text
    • http://topplafond.xyz/93402011632zd595.pdfIn PDF document text
    • http://my-favshop.online/tekusivavisosvifeo.pdfIn PDF document text
    • http://lnstagram-support.live/barbie_and_puppy_adventure_full_moviie811.pdfIn PDF document text
    • http://drilltech.info/yugioh_legacy_of_the_duelist_deck_guidev257a.pdfIn PDF document text
    • http://biomaniks.website/directing_film_techniques_and_aesthey0k8a.pdfIn PDF document text
    • http://yoga-fitness.space/88576485292t39r0.pdfIn PDF document text
    • http://raisinshq.pro/963983330342464c.pdfIn PDF document text
    • http://edarudost.online/zubalabifix63s7.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://muparokaxewidad.rf.gd/attack_on_titan_fan_game_apkpure.pdfIn PDF document text
    • http://kodataruturi.rf.gd/conners_parent_rating_scale_score_sheet.pdfIn PDF document text
    • http://sesisat.epizy.com/alphabet_colouring_worksheets.pdfIn PDF document text
    • http://dozirojaj.rf.gd/76786812355.pdfIn PDF document text
    • http://nipimixo.epizy.com/7405052964.pdfIn PDF document text
    • http://rovafitazilom.epizy.com/city_calgary_bike_path_map.pdfIn PDF document text
    • http://beluguliwiwe.epizy.com/lagu_bertepuk_sebelah_tangan_pupus.pdfIn 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/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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d568.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD568 5160 bytes
SHA-256: 97ff6096bcab59af812d300dae52f09b913f28e6e2dd1725514c6b10af3ae202
font_01_sfnt_off0000e6fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6FC 10120 bytes
SHA-256: e32861bf8e0c643285d74ce017b64f40849b41ab6bd6abd7d31c48db6fc5ff69

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