Malicious PDF — malware analysis report

Static analysis result for SHA-256 554fd3926771cfea…

MALICIOUS

PDF

47.3 KB Created: 2020-08-08 22:57:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e4612303ad4da569973e6f6e464b083b SHA-1: 2f4d0fa95d766b690600a380c139942633177a1a SHA-256: 554fd3926771cfea5e41da9ace10d0f1edad971a335c9e155edaba929ba8cf95
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a malicious redirector link, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic, pointing to 'https://ttraff.ru/pify?keyword=editing+pdf+text+online'. This URL is likely part of a phishing campaign designed to trick users into believing they can edit PDFs online, leading them to malicious infrastructure. The PDF also contains a large number of external links, flagged by PDF_SEO_LINK_FARM, suggesting a link farm or SEO poisoning tactic to distribute the malicious content.

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=editing+pdf+text+online In PDF document text
    • http://wujonux.specialhandsgroup.com/uploads/1/3/1/4/131454373/53b87995ca045a5.pdfIn PDF document text
    • http://files.nourishthesoul.me/uploads/1/3/1/4/131482931/2922842.pdfIn PDF document text
    • http://files.wsdar.com/uploads/1/3/1/4/131482931/merate-pajofizixalugow-jofexokib.pdfIn PDF document text
    • http://togeweb.erinmkearns.com/uploads/1/3/1/4/131453574/8f44f692.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/1/0434/0878/5562/files/61497573157.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5281/7832/files/vafowaviviluz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4205/4048/files/vanoriwevirerode.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6675/1131/files/34517436808.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6929/9098/files/muwofigivajilanukurufag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6830/1212/files/cpt_manual_professional_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4211/1650/files/62521193763.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7689/5398/files/kedifamimikogit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8072/8224/files/rakogamemukedarukew.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

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_off000067a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67A4 4752 bytes
SHA-256: bd5f8ec4c9dbca9c63f48d17863dce79462289a8ab879dcc7dfced21bb6b73cc
font_01_sfnt_off000077f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77F9 10328 bytes
SHA-256: 0dc6291612bf75cf49885c6b4750949943fbd06d116b5ca5d79c5eb96ae2566e
font_02_sfnt_off00009b7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9B7A 16068 bytes
SHA-256: 5338b60dac2ddcc9fbf81734882903060897ff8c18563aad6864a581beec55c6

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