Malicious PDF — malware analysis report

Static analysis result for SHA-256 e70d32fe9279eb0e…

MALICIOUS

PDF

91.4 KB Created: 2021-07-02 13:05:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-13
MD5: d2b1717cc86b07bba70b6959c2b90220 SHA-1: 0be2b81b6ff18de8f8697400fc7da0a6819ad1b6 SHA-256: e70d32fe9279eb0e9ab6ffa0762f3646427332315411f81a2a7f5f6d17e6d6d5
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file was flagged by multiple heuristics and an ML classifier as malicious, with ClamAV identifying it as Pdf.Phishing.Trojan. The document contains a link farm that directs users to various URLs, many of which are hosted on compromised CMS upload directories, suggesting an attempt to lure users to malicious content. The primary attack pattern involves redirecting users through these compromised sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9966

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 https://canvasations.com/wp-content/plugins/super-forms/uploads/php/files/i7c9jbnud8id08qkkk6kueu174/vadesoxofoponinimovedotiw.pdf In PDF document text
    • https://www.chartsunlimited.com.ph/wp-content/plugins/formcraft/file-upload/server/content/files/16085b45b54fe7---lutepogipabevebozebi.pdfIn PDF document text
    • https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/342405c813e4c03853f38a428888ae0e/powexopalatonazegizabez.pdfIn PDF document text
    • https://www.inter-tube.co.uk/wp-content/plugins/super-forms/uploads/php/files/71e22db762d96da99a2cc6cc587d9368/fulefenunamesuzumozerin.pdfIn PDF document text
    • http://asahiru-ban.com/files/files/2503830893.pdfIn PDF document text
    • https://discoverapartmentsforrent.com/wp-content/plugins/super-forms/uploads/php/files/3f5ac6038343804a6579200ebbeb1327/gabikajimisobid.pdfIn PDF document text
    • https://frennphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/160786b437a906---86997920014.pdfIn PDF document text
    • http://basaritarim.net/admin/editor_resim/file/noxebibuvawa.pdfIn PDF document text
    • https://chp-travel.ir/data/file/88578311124.pdfIn PDF document text
    • https://www.accidentinjuryalbuquerque.com/wp-content/plugins/super-forms/uploads/php/files/on7p73c8cqpjamjn1tac687f25/gakobipal.pdfIn PDF document text
    • http://rauvuonsach.net/images/uploads/files/81713340967.pdfIn PDF document text
    • http://artpolinakuzina.ru/pict/file/47677653029.pdfIn PDF document text
    • http://drinkandshrink.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160c6747b19d31---52067782983.pdfIn PDF document text
    • http://rusiuojigalvoji.lt/wp-content/plugins/formcraft/file-upload/server/content/files/160c30181a85ff---71116689718.pdfIn PDF document text
    • http://xn----8sbpvg0afdbe.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/10mh930pvm6rg215i3he1v53v0/munivotarewaponarok.pdfIn PDF document text
    • https://guclupin.com/calisma2/files/uploads/gadavutelizugezajub.pdfIn PDF document text
    • http://tai-group.com/upload/files/50892584217.pdfIn PDF document text
    • http://sms-dk.com/FileData/ckfinder/files/20210630_049ECD4A416468E4.pdfIn PDF document text
    • https://erinmillssmilesdentistry.com/wp-content/plugins/super-forms/uploads/php/files/5hu11ef5vkf867kf8cofvfb5s5/xabarokaxumufa.pdfIn PDF document text
    • http://ttworld.hu/uploads/content_files/files/vowawuta.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=small+black+snake+with+yellow+stripesPDF link annotation
    • https://sharpspringwww.kinsta.cloud/wp-content/plugins/super-forms/uploads/php/files/0a75f8b24e8027c9008dc42f7da39a39/54114425232.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ffa6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFA6 17260 bytes
SHA-256: 5735219cf7d951f5436cea14940466c0a2f427a8dcfdc005565458b910fc0a16
font_01_sfnt_off00012d2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12D2A 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00014541.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14541 11148 bytes
SHA-256: 977f88e2529fa1aef3f9a4cde822e3fdbd2df7ff68275a2511d6ac78b918259e

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