Malicious PDF — malware analysis report

Static analysis result for SHA-256 793d79bde891852f…

MALICIOUS

PDF

384.1 KB Created: 2022-02-26 01:49:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: 88f953a0f8127007f442ddd1169b738f SHA-1: 07ad1ef7e9b74363eb8c19ae7792bfae6fe908cc SHA-256: 793d79bde891852f1aaf162c76178adf8f0c23c99c87a7cd7890b75a82b33c60
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and multiple external links, including one identified as an SEO redirector for phishing. The ClamAV detection and ML classifier also indicate malicious intent. The embedded JavaScript likely serves to download and execute a second-stage payload or redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7188

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://mifuj.co.za/XSRYdR1H?utm_term=song+tera+chumma+me+chawanprash PDF link annotation
    • http://hotelhillwaypark.com/app/webroot/js/kcfinder/upload/files/51503562611.pdfIn PDF document text
    • https://hostsolutions.ro/app/webroot/files/userfiles/files/povagozekepobutisupenaw.pdfIn PDF document text
    • http://thuephotocopytaihanoi.com/upload/files/35190509459.pdfIn PDF document text
    • http://key-pro.jp/kcfinder/upload/files/19312614785.pdfIn PDF document text
    • https://mmgrowersg.com/ckfinder/userfiles/files/tegero.pdfIn PDF document text
    • http://dubiliergarten.de/uploads/files/fukadavodekejal.pdfIn PDF document text
    • http://kungfubp.hu/admin/assets/images/files/55252912638.pdfIn PDF document text
    • http://wdnederland.nl/file/kubiligax.pdfIn PDF document text
    • https://www.patisserie-flechais.fr/ckfinder/userfiles/files/rawogotiloxezifonub.pdfIn PDF document text
    • http://thanglong.vn-greenenergy.com/ckfinder/userfiles/files/29413869877.pdfIn PDF document text
    • http://ztkammer.at/uploads/file/71348388421.pdfIn PDF document text
    • http://altiro.nl/home/tjerk/file/jaluberupugidikanuli.pdfIn PDF document text
    • https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/1d4e8cf0a0162f309ea5eaba119f9088/8071365156.pdfIn PDF document text
    • http://ettorebelfioreliutaio.it/userfiles/files/babumetukelolojorito.pdfIn PDF document text
    • http://zamaro.cz/images/fcke_files/file/40059941075.pdfIn PDF document text
    • https://magnanelli.com/userfiles/file/mevubotafefevataz.pdfIn PDF document text
    • https://glass-haus.ru/wp-content/plugins/super-forms/uploads/php/files/22a3b442ebb0c67ac84a1e22166aadf9/wolizugejavexaralu.pdfIn PDF document text
    • http://lobanowscy.pl/userfiles/file/vulajetaloxorekebuxit.pdfIn PDF document text
    • https://pokereshop.cz/data/file/xamewekibanisakejonuzij.pdfIn PDF document text
    • http://weilandvloeren.nl/fckimages/libuximagekugagut.pdfIn PDF document text
    • https://literie-depot.fr/UserFiles/file/xesoxivepipelafimofurid.pdfIn PDF document text
    • https://fobh.net/userfiles/files/25184502802.pdfIn PDF document text
    • http://ydchem.cn/filespath/files/20210912085821.pdfIn PDF document text
    • http://www.anespo.pt/sgc/Assets/Plugins/CKEditor/kcfinder/Uploads/files/70469590182.pdfIn PDF document text
    • https://ulicetwojegomiasta.pl/kcfinder/upload/files/wujululimojimafabeni.pdfIn PDF document text
    • http://www.skup.it/wp-content/plugins/formcraft/file-upload/server/content/files/161dc55d4e5794---79031014767.pdfIn PDF document text
    • http://sov.tranovice.org/webpagebuilder/ckfinder/userfiles/files/33751347951.pdfIn PDF document text
    • http://bckvalumni.org/userfiles/file/jimejubuxubojej.pdfIn PDF document text
    • https://www.hungarianassociation.com/wp-content/plugins/formcraft/file-upload/server/content/files/161b219844f964---lodosekefojuw.pdfIn PDF document text
    • http://nikolalepojevic5.com/multimedia/file/7264996780.pdfIn PDF document text
    • https://pilot-nav.socksnbows.com/ckfinder/userfiles/files/xewedab.pdfIn PDF document text
    • https://www.vibrationmonitoring.asia/wp-content/plugins/formcraft/file-upload/server/content/files/16193a60390392---50039449826.pdfIn PDF document text
    • http://zhihepvb.com/upload/ckimg/files/202202041851263969.pdfIn PDF document text
    • http://xn--54-dlcdkamdj4btild5b.xn--p1ai/ckfinder/userfiles/files/45452754311.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://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_off0005923f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5923F 18032 bytes
SHA-256: cfdf3c9f6856c46368468e12e3692128dcb82a7abda63fc5c9fbc77bcd4d504f
font_01_sfnt_off0005c080.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C080 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0005d7a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D7A0 10944 bytes
SHA-256: 05d4d0c2fd045c59b7e4403a5f0cbe683811d3fe930bf4539ac1b10b71b0cad4