Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f6231f7847caf67…

MALICIOUS

PDF

350.8 KB Created: 2022-01-23 16:07:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-30
MD5: 03e3c6d781624a563b31213fb7bc515f SHA-1: e5b063ec4274b2e1d7e3c206d195c4c3f342e9ac SHA-256: 8f6231f7847caf679da4696e42c1c90f78400d48dd544403057a0f45332d4772
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7480

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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.
  • 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://frutalmente.pt/site/upload/file/farukapoparibo.pdf In PDF document text
    • http://hftyby.com/upload_fck/file/2021-11-1/20211101040657613842.pdfIn PDF document text
    • http://zjgjqmr.com/v15/Upload/file/20211031619519982.pdfIn PDF document text
    • https://www.privathospitaletkollund.com/ckfinder/userfiles/files/xipivoki.pdfIn PDF document text
    • http://chmurova.cz/files/xunimoxiwijaruginowanud.pdfIn PDF document text
    • http://104450wp19.agentcentrum.com/userfiles/files/rerobekovoruj.pdfIn PDF document text
    • http://www.grundys.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16163f053966e5---kukobalogerusip.pdfIn PDF document text
    • http://hankyunget.net/userData/board/file/woxonapowutonetuwopi.pdfIn PDF document text
    • http://oneself.pro/wp-content/plugins/formcraft/file-upload/server/content/files/161682e3eda90f---74013703003.pdfIn PDF document text
    • https://sistemagestiondpr.com/userfiles/file/51864626144.pdfIn PDF document text
    • http://ieclop.pnl.ac.id/asset/kcfinder/upload/files/1425181512.pdfIn PDF document text
    • http://ekoturizm.mekan360.com/UserFiles/file/33643666622.pdfIn PDF document text
    • https://sunnybeachaeroclub.com/files/files/rosumomizivategexesexiw.pdfIn PDF document text
    • https://vpmemorial.net/images/file/ramawotateluzidas.pdfIn PDF document text
    • http://synphabase.ch/upload/file/91049319643.pdfIn PDF document text
    • https://maidintown.co.uk/wp-content/plugins/super-forms/uploads/php/files/09787fdc97c7adc2d99e6af24035fc28/wisumixarazopuwisivikibab.pdfIn PDF document text
    • http://centralcogtc.com/uploads/file/kitonefenokiwifurozam.pdfIn PDF document text
    • http://www.advancedevents.ro/wp-content/plugins/formcraft/file-upload/server/content/files/161a9b2e3df01b---92315320613.pdfIn PDF document text
    • http://www.megasaludips.com/wp-content/plugins/formcraft/file-upload/server/content/files/1618a8033dd838---tekilerimewarotewim.pdfIn PDF document text
    • http://imagespa.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1614956eb2d41e---xunufagovituvawazugusi.pdfIn PDF document text
    • http://asfalon.com/__files/file/zuruzixojofivalevebexar.pdfIn PDF document text
    • https://www.hadlowsecurityshutters.com/wp-content/plugins/super-forms/uploads/php/files/d1fdef9c56ed1d29399f28b970e574df/42254673125.pdfIn PDF document text
    • https://autosaloncenter.com/uploads/files/7497530892.pdfIn PDF document text
    • http://tjsyjdq.com/v15/Upload/file/20211220218256542.pdfIn PDF document text
    • http://prompol.com/media/file/57269982896.pdfIn PDF document text
    • http://origo.ws/userfiles/file/34490357633.pdfIn PDF document text
    • http://tsradviseurs.nl/mailing/images/photo/file/majofikaxakilozi.pdfIn PDF document text
    • http://cserepakcio.hu/xdata/file/jofirojiriwol.pdfIn PDF document text
    • http://teifsepahan.com/files/file/20727276584.pdfIn PDF document text
    • http://commune-bourre.com/userfiles/file/76628411319.pdfIn PDF document text
    • https://rubenoferro.com/userfiles/file/wuvufulibadi.pdfIn PDF document text
    • http://ymmicro.com/files/files/66105180032.pdfIn PDF document text
    • https://www.hdod.emed.hr/admin/kcfinder/upload/files/49800843861.pdfIn PDF document text
    • http://visualpaint.com/wp-content/plugins/formcraft/file-upload/server/content/files/161711e3796e14---fabuvimuxigokezu.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/23D8k0Ec_6w/uplcv?utm_term=pdf+alcor%C3%A3o+sagradoPDF 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 extracted file (font_00_sfnt_off00050eae.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00050eae.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00050eae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50EAE 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off00052552.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52552 10492 bytes
SHA-256: 43ea01153dfec6de60ca0202d01dbbd33a403894344fa1e31097fb2aaf0275f7
font_02_sfnt_off00053cad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53CAD 18252 bytes
SHA-256: 770abfd6911460054a4bc85f3ddaa488de5492220d35a3f647a81220aa5e1c8d