Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f16e208df7eb9bd…

MALICIOUS

PDF

42.4 KB Created: 2020-08-28 01:01:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0796581a1e05311814dbc178869f1837 SHA-1: 8e5385f431641c1a971272f6d6c41ada5e80ab08 SHA-256: 9f16e208df7eb9bd5b82b400942775ebff7b50ec55d6000f046cf225d9769944
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Addends T1059.001 PowerShell

The PDF contains a large number of embedded links, identified as a link farm. One of the primary links, 'https://ttraff.ru/pify?keyword=sap+hana+bw+hierarchy', is flagged as a malicious redirector. The document body is heavily obfuscated but contains references to the redirector URL and other Shopify-hosted PDF files, suggesting a coordinated effort to drive traffic to malicious infrastructure. 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.ru/pify?keyword=sap+hana+bw+hierarchy In PDF document text
    • http://files.harnesslead.com/uploads/1/3/1/4/131407089/tumimetelex.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/1/0433/6861/1989/files/tutadepu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4583/1335/files/bomutenabubuperoxoros.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2979/7787/files/24018102728.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/8148/2650/files/dogasazagiwifulipoza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4958/1730/files/wigebagatifapeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7365/9290/files/zuvosiviri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5746/9845/files/chronic_alcoholism_treatment_guidelines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9391/5800/files/tutumako.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xarapidarobumebavo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1223/5174/files/alcatel_u5_user_manual.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 2

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_off000067e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67E4 5248 bytes
SHA-256: 1a3bb2b26ec1a79a95df73be1ca465fc4b985e043bfe88cd88917547f599d8f9
font_01_sfnt_off000079c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79C5 10676 bytes
SHA-256: d98b0311712175c4161d94f7d26ee5325febeecbd47bd9c03afe22a899c38542

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