Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9905636861c0efa…

MALICIOUS

PDF

355.6 KB Created: 2022-03-09 16:56:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-13
MD5: 61813be9d83712d9272f163e7828889b SHA-1: 5b7f80b25b6712c10e3fa086ae35a3d0effff8da SHA-256: f9905636861c0efadfc283c5e34cca1aeb42d176f880cc9b82581825b62da23d
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and multiple URLs, including one identified as an SEO redirector for free-download phishing. ClamAV also detected this file as a phishing trojan. The presence of JavaScript and the nature of the URLs suggest an attempt to deliver a malicious payload or redirect the user to a phishing site.

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://podar.co.za/XSRYdR1H?utm_term=aristotle+rhetoric+pdf PDF link annotation
    • http://dayuntang.com/assets/uploads/ckedit/files/20220309123922.pdfIn PDF document text
    • http://sonsuadogo.org/Images_upload/files/vajevometexukibatukalu.pdfIn PDF document text
    • http://investmedic.com/app/webroot/assets/js/kcfinder/upload/files/18522437141.pdfIn PDF document text
    • https://spazmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fa0bd301024---jodimonolonerevexaxop.pdfIn PDF document text
    • https://averakazan.ru/kcfinder/upload/files/kumamadabax.pdfIn PDF document text
    • http://restauraceeverest.cz/userfiles/file/badedejepeki.pdfIn PDF document text
    • http://otestmanager.org/club/data/userfiles/file/20220228100238.pdfIn PDF document text
    • https://gyepracs.budvill.hu/userfiles/files/mogatisutizadinibalimanu.pdfIn PDF document text
    • https://panama4d.com/contents/files/mewuzotoxokefofuver.pdfIn PDF document text
    • https://contact-house.com/fckeditor/upload/file/xazajubazaxanisakip.pdfIn PDF document text
    • http://www.mediacomriccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/1621e720227124---dukakokawixota.pdfIn PDF document text
    • http://geo-equipe.it/userfiles/files/fuvaz.pdfIn PDF document text
    • http://bergfin.se/wp-content/plugins/formcraft/file-upload/server/content/files/162094542f18e4---vuxer.pdfIn PDF document text
    • http://iq-money.ru/upload/files/fiwokujoposiludivol.pdfIn PDF document text
    • https://al-farh-iq.com/upload/userfiles/file/fajoxanabibiz.pdfIn PDF document text
    • https://profbuhotchet.ru/wp-content/plugins/super-forms/uploads/php/files/8f32a5b6fdc72a63cdaa62de3ca7179d/wavodijenipil.pdfIn PDF document text
    • http://travelsolutions.co/ckeditor/kcfinder/upload/files/sadiseketugexoxiranegogaz.pdfIn PDF document text
    • http://ranc.hyncice.eu/userfiles/file/5747259850.pdfIn PDF document text
    • http://sinbad.sy/admin/kcfinder/upload/files/menazuzenudimulepegufi.pdfIn PDF document text
    • http://dxqzx.com/ckfinder/userfiles/files/20220219_061614.pdfIn PDF document text
    • http://js-space.de/userfiles/file/99166928692.pdfIn PDF document text
    • http://www.rarlaw.net/siteuploads/editorimg/file/noduja.pdfIn PDF document text
    • https://www.hauptsache.cc/wp-content/plugins/formcraft/file-upload/server/content/files/161ffce51514f1---22438975455.pdfIn PDF document text
    • https://pikhospital.com/ck_uploads/uploads/files/wamilewuwut.pdfIn PDF document text
    • http://struna.bg/admin/kcfinder/upload/files/fesifo.pdfIn PDF document text
    • https://hab.erdenet.mn/userfiles/files/4945020554.pdfIn PDF document text
    • http://aptekadc.pl/userfiles/userfile/65067064713.pdfIn PDF document text
    • https://www.mclarenpress.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620727d003267---jovewirenor.pdfIn PDF document text
    • http://rainternacional.com/userfiles/file/5461006290.pdfIn PDF document text
    • https://helicopterleasingservices.com/userfiles/files/94849188940.pdfIn PDF document text
    • http://planetpower-thefilm.com/plugins/kcfinder/upload/files/temivosanuzedinosimenijur.pdfIn PDF document text
    • http://xn--9i1b14lzokxjcrti5um.com/upload/fckeditor/file/bozemusexobikigojini.pdfIn PDF document text
    • https://panoramamall.bg/ckeditor/ckfinder/userfiles/files/suvar.pdfIn PDF document text
    • https://aep-tc.com/cache/fck_files/file/41212139736.pdfIn PDF document text
    • http://werder-ritter.de/UserFiles/File/62639777110.pdfIn PDF document text
    • https://svetplus.com/userfiles/files/71709189569.pdfIn PDF document text
    • http://rfinshaat.az/userfiles/file/sufewarotu.pdfIn PDF document text
    • http://cnhhgj.com/upfiles/userfiles/file/37955820387.pdfIn PDF document text
    • https://joefairless.com/wp-content/plugins/super-forms/uploads/php/files/45406e47b6ae5cb3b2046f8081542d4b/gadegovifebipafa.pdfIn PDF document text
    • http://www.granito-terrazzo.be/ckeditor/kcfinder/upload/files/lolivedajosu.pdfIn PDF document text
    • http://asirius.su/wp-content/plugins/super-forms/uploads/php/files/d51253a4ae67c7d46a8e9d1bc090a434/fozegojozagenatitotefetaj.pdfIn PDF document text
    • https://www.conepe.org.br/public/ckeditor/kcfinder/upload/files/zupalumirojabavelaru.pdfIn PDF document text
    • http://samnakthodrahassob.com/userfiles/file/49503479730.pdfIn PDF document text
    • http://batteryzone.pk/assets/kcfinder/upload/files/34359415358.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_off000522d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x522D4 10432 bytes
SHA-256: 52cff5d05df3dcab3445b7b4a2dfa07477b0da2b5a821a4c3d1c74eb363c32d3
font_01_sfnt_off00053a9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53A9F 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off000551bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x551BC 17016 bytes
SHA-256: fe6a606eec83f85c0b1d53d59fb53282245b5730ddc30b183942efc57158a86f