Malicious PDF — malware analysis report

Static analysis result for SHA-256 793520a53c1b5d72…

MALICIOUS

PDF

365.5 KB Created: 2022-05-04 11:57:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-14
MD5: 8ecbff468f62f362506ec9a6f03fc15b SHA-1: 676081861be8bbd498b8ba69d0ab01c62cccf456 SHA-256: 793520a53c1b5d72149229c6c1e709d03845aa68180fa4eeba373309e6abbfe3
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and external URIs that are part of a link farm pointing to compromised WordPress upload storage. The primary lure is an image linking to an SEO redirector, disguised as a service manual download. The ClamAV detection and ML classifier further indicate malicious intent, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5565

Heuristics 7

  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://loheb.co.za/XSRYdR1H?utm_term=2014+kia+sorento+service+manual+pdf+free+pdf+editor PDF link annotation
    • http://eduomania.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621e18424618a---gebavajizofazezi.pdfIn PDF document text
    • http://www.regional4.org.ar/administrador/kcfinder/upload/files/30153248081.pdfIn PDF document text
    • http://bascobrunswick.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1624a6cafa5247---kasofidapodavetefiw.pdfIn PDF document text
    • https://joletumutete.weebly.com/uploads/1/3/4/8/134871701/xebevij.pdfIn PDF document text
    • https://gunimesugudux.weebly.com/uploads/1/3/0/7/130776745/kupewiror.pdfIn PDF document text
    • https://vewekazetuxif.weebly.com/uploads/1/3/1/3/131379326/36a1948.pdfIn PDF document text
    • https://xebuvimujutil.weebly.com/uploads/1/3/6/0/136050287/vatagupumojo-vedisuvo.pdfIn PDF document text
    • https://gizibufunete.weebly.com/uploads/1/3/4/4/134492386/gexim.pdfIn PDF document text
    • https://fuxakenaz.weebly.com/uploads/1/3/4/5/134589300/8489103.pdfIn PDF document text
    • http://peetersinstallatietechniek.nl/upload/files/zeduzoxugomuze.pdfIn PDF document text
    • https://xevefozivoro.weebly.com/uploads/1/3/5/3/135339272/3507008.pdfIn PDF document text
    • https://lombardpruszkow.pl/local/userfiles/file/molorusog.pdfIn PDF document text
    • https://journeypeople.cc/wp-content/plugins/super-forms/uploads/php/files/6a51de43a117962c4a9254bee8bbc9cd/10659344207.pdfIn PDF document text
    • https://x-leather.com/radsportfiles/file/fexevaxorixaxad.pdfIn PDF document text
    • http://www.fattyweng.com.sg/wp-content/plugins/formcraft/file-upload/server/content/files/16230166347665---zinufasiwolaxotitibaxavap.pdfIn PDF document text
    • https://denapifikuzo.weebly.com/uploads/1/3/4/6/134634031/7008104.pdfIn PDF document text
    • https://pojetepanale.weebly.com/uploads/1/3/4/3/134361345/pijevoruvuruwogu.pdfIn PDF document text
    • https://pebowadorakavi.weebly.com/uploads/1/4/1/5/141500167/3189776.pdfIn PDF document text
    • https://nogefarixuri.weebly.com/uploads/1/3/4/6/134647247/3379354.pdfIn PDF document text
    • http://anpharma.net/upload/files/mutanudajitotikevedimo.pdfIn PDF document text
    • http://asung-tech.net/userData/ebizro_board/file/87059493215.pdfIn PDF document text
    • http://www.park-seversk.ru/other/js/ckfinder/userfiles/files/79396495541.pdfIn PDF document text
    • https://receptlap.hu/files/mezeledurowasozowiwip.pdfIn PDF document text
    • https://lavefikamov.weebly.com/uploads/1/3/0/8/130813740/4412154.pdfIn PDF document text
    • http://oks.urmon.uz/kcfinder/upload/files/kavunekenepogusor.pdfIn PDF document text
    • https://fumunagik.weebly.com/uploads/1/3/4/5/134520136/4892a.pdfIn PDF document text
    • http://df-2.de/images/daten/file/71102179635.pdfIn PDF document text
    • https://kabugumaka.weebly.com/uploads/1/3/6/0/136099465/mutojofetil_xemipodetosesas.pdfIn PDF document text
    • https://powerliteaac.com/userfiles/file/voxufumuvilezixot.pdfIn PDF document text
    • http://tianfonmm.com/d/files/vifomafupum.pdfIn PDF document text
    • https://rowevopa.weebly.com/uploads/1/3/1/8/131872281/a5ae9a4b2b205.pdfIn PDF document text
    • https://www.harnoordesigns.com/wp-content/plugins/super-forms/uploads/php/files/6ed832bb4354b53d61aeacfb088ab63e/bewobubefuwofotakizume.pdfIn PDF document text
    • http://aptekarynek.pl/zdjecia/fck/file/wuvufemixakij.pdfIn PDF document text
    • http://shinyoungvalve.com/userData/board/file/2199137868.pdfIn PDF document text
    • https://xuzanuvu.weebly.com/uploads/1/3/7/5/137508084/cabd12135fd0e8.pdfIn PDF document text
    • http://hadjtaharsteel.com/app/webroot/js/kcfinder/upload/files/runavudinulave.pdfIn PDF document text
    • http://alhegazgroup.com/userfiles/file/videpofibi.pdfIn PDF document text
    • https://cupanghitam.com/contents/files/womesufurewoxo.pdfIn PDF document text
    • https://weduzoviduluwiz.weebly.com/uploads/1/3/4/3/134385862/bajetekumotowijuxati.pdfIn PDF document text
    • https://nuralizowipu.weebly.com/uploads/1/3/4/6/134693001/6747952.pdfIn PDF document text
    • http://submission.ksar.kr/pds/userfiles/files/xajojig.pdfIn PDF document text
    • https://kasezikibojeg.weebly.com/uploads/1/3/1/8/131871727/f7f10.pdfIn PDF document text
    • https://pebajubidu.weebly.com/uploads/1/3/1/3/131383648/8fe821e0e.pdfIn PDF document text
    • https://wentworthre.com/wp-content/plugins/super-forms/uploads/php/files/97dd00cb53607834eacd72c9e1b3a2e9/1677139674.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
    +3 more URL(s)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00053fde.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53FDE 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off000557f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x557F0 19496 bytes
SHA-256: 6cc11f8b042f625119dacafe5c838c38ee2850c71f1859ced1fee189cf351bf7
font_02_sfnt_off00058a6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58A6C 11312 bytes
SHA-256: 563b1d5b63fb17447296dfc1f2914c3b175a04f38749a09bfd2005524fd12bf9