Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6be8b7b9c95c3fd…

MALICIOUS

PDF

68.6 KB Created: 2021-06-19 01:37:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f01bfdbb847b07b331c296bf70784f75 SHA-1: 9b8b0b299c1134ea277f6cff49748275f7ba847a SHA-256: e6be8b7b9c95c3fd899980669f1ebda9f67a38abf0dbb8d6beac3e77bf093d04
156 Risk Score

Malware Insights

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

The PDF contains numerous links to external websites, many of which are hosted on compromised CMS platforms or disposable domains, indicating a link farm designed to redirect users to malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a malicious document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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.
  • 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 http://insidethedigitaltrend.biz/userfiles/file/mafivezidetutepifijes.pdf
    • http://www.jesuseslaroca.org/wp-content/plugins/formcraft/file-upload/server/content/files/16084bcdc440c0---zakodojozakakumemovuwepen.pdf
    • https://www.paparazzirestaurant.com.au/wp-content/plugins/super-forms/uploads/php/files/b1b6e35b57e12d12d4f75df9363daf0e/zetapikidokade.pdf
    • http://almar-bus.pl/userfiles/file/varexulukuvevifuk.pdf
    • https://www.peeryhotel.com/wp-content/plugins/super-forms/uploads/php/files/7bdefeb3a0b8f9bb7c9d8434d0240368/butunono.pdf
    • http://sinara.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607214d44af88---98841364267.pdf
    • http://herningbadintra.dk/app/webroot/upload/files/86127446009.pdf
    • https://www.spoton.pet/wp-content/plugins/super-forms/uploads/php/files/v31iaqnhiuublpl888c46i7rp0/43997430538.pdf
    • http://bubblesoflove.net/wp-content/plugins/formcraft/file-upload/server/content/files/160b8e39cd8ceb---tejuwufimutikajoler.pdf
    • https://micast.de/wp-content/plugins/super-forms/uploads/php/files/3hois7gqdhu1nviqlj1v6umnea/38448022554.pdf
    • https://www.potterycommercials.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1606e36cb72517---39975731030.pdf
    • http://jevades.com/aircraft/fckimages/file/24814769451.pdf
    • http://veronicanealhome.com/wp-content/plugins/formcraft/file-upload/server/content/files/2/160a7ee8c580f1---soviradowuxumegisos.pdf
    • http://www.hkqi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c0574a6da86---bixoxitoto.pdf
    • http://alliusie.com/userfiles/file/95095414692.pdf
    • http://mayfamilycircle.com/clients/5/53/53cd9f4101e72b768929e5daf979c2da/File/resodarosoretufolitubo.pdf
    • http://famillespourstarlight.com/clients/a/a9/a9b42c05011d3bb27e7f7ec2ed30324f/File/98993041974.pdf
    • https://nnkcreations.com/userfiles/file/87366839287.pdf
    • http://capitolmetrophysicaltherapy.com/userfiles/file/70084742563.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=mixed+future+tenses+exercises+printable
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cdf0.bin
628917381f4141081cb588087e5448d7eb755d30a46a2f18b00320e362d49bf6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCDF0 5364 bytes
font_01_sfnt_off0000e04a.bin
4e4577c5e8700779987d3d3ac69f8d6f7e5d9eed9aee6d10425c3f91db835ffe		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE04A 11016 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.