Malicious PDF — malware analysis report

Static analysis result for SHA-256 54c3c7bbfeb2fb48…

MALICIOUS

PDF

40.8 KB Created: 2020-08-09 01:53:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 090ee97b1442bd5f9eb7c6c1c06047a1 SHA-1: 4c0129ffd4ba16ab4eb524828c108850bc8ab122 SHA-256: 54c3c7bbfeb2fb48d2bdb1aa032186bfe5498b247aad83792d809cf003b67a0d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=law+dictionary+english+to+english+pdf'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many of which are hosted on Shopify. The document body, though partially corrupted, contains the same malicious URL and appears to be a lure for a law dictionary PDF. No scripts were extracted, but the primary attack vector is the malicious redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.
  • 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://ttraff.ru/pify?keyword=law+dictionary+english+to+english+pdf In PDF document text
    • http://files.hovercraftusa.org/uploads/1/3/1/4/131437531/zesugiso-zejuxolus-wazapopafalige-panutiti.pdfIn PDF document text
    • http://files.thefullertons.net/uploads/1/3/0/8/130814124/1768096.pdfIn PDF document text
    • http://files.ianbakst.com/uploads/1/3/0/9/130969686/9211495.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/2706/7043/files/learn_french_for_beginners_through_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2865/9869/files/gitinewuvatewozelawixarit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4492/0734/files/13625080969.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5233/5255/files/15364636994.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7103/6835/files/24314772646.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4272/5275/files/jaloponejuwupizovadopawox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7118/4794/files/zizutuzulewepaniwe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6360/6429/files/pisapikajifisapikebesof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9930/6648/files/fenox.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

Related samples 3

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000061e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61E0 5552 bytes
SHA-256: 540f4131970697c35dde753320af2877339f499c51ac581c52adfdb66bf161d0
font_01_sfnt_off000074dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74DC 9860 bytes
SHA-256: 869d7fb373b8e191753594442386a621e99a2c5b0835e70e20c041ffc0f75cd3

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