Malicious PDF — malware analysis report

Static analysis result for SHA-256 69d1ff4275178a06…

MALICIOUS

PDF

39.6 KB Created: 2020-08-19 03:59:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2e2db7ee1d8d37e9e6c1cb532916037c SHA-1: dff7e159026f6c7d8f56aab31145f3749b8d1655 SHA-256: 69d1ff4275178a06a8a35d5884427f068569d477b96c1188be56efc13ee6a092
194 Risk Score

Malware Insights

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

The PDF contains multiple links, including one that redirects to a known malicious infrastructure at ttraff.ru. The document body and embedded links suggest a lure for free downloads, likely to phish for credentials or deliver further malware. The ML classifier strongly indicated maliciousness, and the presence of numerous SEO-optimized links points to a link farm or phishing campaign.

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=anemia+microcitica+hipocromica+en+ni%25C3%25B1os+pdf In PDF document text
    • http://files.flissyscoffeeshop.co.uk/uploads/1/3/2/6/132681796/dexevavizokuba.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/1/0436/7722/1017/files/62287185135.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8803/6505/files/zadavoposegu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2588/2518/files/zinezimagizubejidiju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2121/2570/files/accounting_financial_statements.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/3744/7576/files/freckle_juice_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0772/0094/files/yowhatsapp_2018_uptodown.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5820/0730/files/57093447713.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5657/0274/files/rolozuxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2668/4824/files/castrol_magnatec_diesel_5w_40_dpf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7221/5448/files/50341232787.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 1

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_off000059eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59EB 5564 bytes
SHA-256: ac88c7480f4936fe16bf3a0a4ee838bd249dc13e60c6baf2bb5dd432588c76e4
font_01_sfnt_off00006c5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C5C 10320 bytes
SHA-256: c4942a64077faafc2094af1b5c9188578b62dfd61c53d6ff52d90e24cddb1be0

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