Malicious PDF — malware analysis report

Static analysis result for SHA-256 807a29773c52e111…

MALICIOUS

PDF

108.4 KB Created: 2021-03-15 20:23:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-25
MD5: a8d11f2a6d50c0984f99968e45e5bbed SHA-1: dfe72debd0268bfa18b8a5b432316257ebcf9f5f SHA-256: 807a29773c52e1112fe7f77c1a1c563f5fe227b1e3f28bc65eb216d47b37b558
136 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains heuristics indicating it's a phishing lure, specifically using an image to redirect users to a URL that appears to offer a Tissot watch manual. The primary malicious URL identified is 'https://gimoguvi.ru/wix?keyword=tissot+t+touch+solar+manual', which is likely part of a phishing campaign. While no scripts were directly extracted, the PDF structure and external URL firings strongly suggest a phishing attempt to trick users into downloading further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 5

  • 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.
  • 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://gimoguvi.ru/wix?keyword=tissot+t+touch+solar+manual PDF link annotation
    • http://bioforce-co.site/58352338142l1l1x.pdfIn PDF document text
    • http://myyshooop227.site/nipalilajimubudupol0tty.pdfIn PDF document text
    • http://skameyki.club/33119337429dw64g.pdfIn PDF document text
    • http://salebox.shop/jizivonasogelaviw0pmtd.pdfIn PDF document text
    • http://differencecheats.net/42698825731xpr9q.pdfIn PDF document text
    • http://p-kavkaza.ru/star_wars_thrawn_treasoncu9bc.pdfIn PDF document text
    • http://instacopyrighthelpteam.com/17523919905ieg03.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/napejaxosinages/64989334714.pdfIn PDF document text
    • https://s3.amazonaws.com/wetowuzuxit/linkedin_icon_vector_free.pdfIn PDF document text
    • https://s3.amazonaws.com/teximikamukubo/32574700195.pdfIn PDF document text
    • https://s3.amazonaws.com/najipavez/11728297030.pdfIn PDF document text
    • https://s3.amazonaws.com/rafiralexezol/susomimet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8d16d131-337a-46fc-a2be-8be48babacdb/pilokituw.pdfIn PDF document text
    • https://s3.amazonaws.com/lizuseguwix/mufeki.pdfIn PDF document text
    • https://s3.amazonaws.com/lososimap/marifaxuwotagawow.pdfIn PDF document text
    • https://s3.amazonaws.com/vefagotoje/mogisinakoxemigepi.pdfIn PDF document text
    • https://s3.amazonaws.com/vitelitubovuluj/tazonesegaz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e219030f-7e74-43b5-8c5a-9fba9ba7e868/21605494694.pdfIn PDF document text
    • https://s3.amazonaws.com/gomakobez/zuwulabemovuwifipukez.pdfIn PDF document text
    • https://s3.amazonaws.com/xirixepo/55380392545.pdfIn PDF document text
    • https://s3.amazonaws.com/jixerubowi/polikavajuxowo.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://scripts.sil.org/OFLIn 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_off00015530.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15530 4988 bytes
SHA-256: 2ee5767f5a2ad564be337fc558eb774dbc46caee2a142cde14508071fed2b210
font_01_sfnt_off000165f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x165F8 11748 bytes
SHA-256: 9b6ac956e468a640c495f5205ac94591ae43d05ea51bf54afa6a314fa47e852c
font_02_sfnt_off00018dd0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18DD0 16204 bytes
SHA-256: 532315dfdc59b350d447ad91845dd8cc72a836e684f536ab9a4305dc5b53fb8e

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