Malicious PDF — malware analysis report

Static analysis result for SHA-256 9fbb45fe9b0a8abf…

MALICIOUS

PDF

40.7 KB Created: 2020-08-06 17:35:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7eb0d81ad5c1275614f8854c5c631f0c SHA-1: 9207c99f167119d2be3761aebe2efda8d8f7aa5a SHA-256: 9fbb45fe9b0a8abfe36237f0e9a5c897dc97d4d7fa6f78ee2bfca17ccf3643b4
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=simple+nitrogen+cycle+pdf'. This URL is presented within the document body, disguised as a benign PDF title. The file also exhibits characteristics of a link farm, with numerous embedded URLs, many pointing to Shopify domains, likely for SEO manipulation or to obscure the malicious redirector. The primary intent appears to be directing users to the malicious ttraff.ru domain.

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=simple+nitrogen+cycle+pdf In PDF document text
    • http://files.sabiland.com/uploads/1/3/1/3/131384635/zububibubil_weduketu_wunowuberevozij.pdfIn PDF document text
    • http://files.rosewoodandyork.com/uploads/1/3/1/3/131398097/xebimewakabafamono.pdfIn PDF document text
    • http://fupogawa.danniles.com/uploads/1/3/1/3/131398560/401024b00.pdfIn PDF document text
    • http://files.myequinesolutions.com/uploads/1/3/1/6/131607522/tikufutevivugi_nidebukoxadadow_kizanifani.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/1/0432/5851/1522/files/science_fair_abstract.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6422/2101/files/55366166999.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8252/2517/files/5564524224.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6152/6179/files/sociologija_klett.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5704/4890/files/38536527329.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7008/7587/files/zigutizoza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7342/8888/files/analemmatic_sundial_generator.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6113/9861/files/66671889597.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0691/0887/files/gazipesigalure.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5156/3670/files/anestesia_geral_veterinaria.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fiwowosilikaragufes.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 5

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_off00006269.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6269 5292 bytes
SHA-256: a5bc8fa63c965a109a578129cb6be551e5b469a4a042f61af018f6804565ac03
font_01_sfnt_off00007460.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7460 9732 bytes
SHA-256: 20304b05792c2ad2a12c794c0e33a8f9f0bff040b93a51b062448e4b4aa93a37

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