Malicious PDF — malware analysis report

Static analysis result for SHA-256 09d304fff999fb47…

MALICIOUS

PDF

41.6 KB Created: 2020-08-11 19:11:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e5ac0156357293264dae28f255608fa7 SHA-1: 5da12c880b21c5328a4359c35b138aba1fa32368 SHA-256: 09d304fff999fb4722b4d4e1ed46842179973afdc0d9d638b329fa08cefb380b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service (ttraff.cc) which is flagged as malicious. The document body, though heavily obfuscated, contains the same redirector URL and benign-looking PDF filenames, suggesting a link farm designed to trick users into downloading potentially malicious files. The ML classifier also strongly indicated maliciousness.

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.cc/pify?keyword=business+environment+analysis+pdf In PDF document text
    • http://files.hollyannphoto.com/uploads/1/3/0/7/130775228/jimofisigab.pdfIn PDF document text
    • http://xironid.plantiful-mama.com/uploads/1/3/0/7/130739678/bipokereniriraz.pdfIn PDF document text
    • http://files.darrennixon.com/uploads/1/3/1/6/131606268/a93c03939.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/1/0443/1269/0844/files/bow_hunting_for_beginners.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6982/3383/files/29567236184.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7311/9143/files/3537442337.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1760/7067/files/jurnal_cacing_cestoda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4262/6984/files/97264812611.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1666/7814/files/2002195962.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7133/2767/files/definicion_de_algoritmo_informatica.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5082/6919/files/47383170436.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5550/4794/files/rozosit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9148/3041/files/79743537814.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7451/9194/files/xinimunawovuxumopo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8390/6724/files/zidokedewijosugox.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 8

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_off0000663f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x663F 5400 bytes
SHA-256: 52aa8daba945f0c0e2553407af4f307c4e3118345207c768d720190f4ae31af0
font_01_sfnt_off0000788a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x788A 9564 bytes
SHA-256: 2a91c32dea5ac435aa6235eb580f2bd793c6ce27083c28b03c45a6ab1ea62e3f

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