Malicious PDF — malware analysis report

Static analysis result for SHA-256 894ebf159da78727…

MALICIOUS

PDF

43.4 KB Created: 2020-08-17 16:03:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a398f1e4a72ed2f661d3b0bd0ad1e913 SHA-1: c5b3636789ef55cb06b2b3b7eaf75d64ce1fc6e4 SHA-256: 894ebf159da787276a5c8dfd0b76da8fe57b9acd664dd044ba5febf4559a9506
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link farm designed to redirect users to malicious infrastructure, specifically identified by the URL https://ttraff.ru/pify?keyword=3d+audio+songs++website. This technique is often used in phishing campaigns to distribute malware or lead users to scam pages. The presence of numerous links to external PDFs, many hosted on Shopify, suggests an attempt to manipulate search engine results or create a deceptive download experience.

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=3d+audio+songs++website In PDF document text
    • http://files.gleimlightmedia.com/uploads/1/3/1/0/131070062/c404fbc1328e.pdfIn PDF document text
    • http://files.mhes-ses-bandstrings.com/uploads/1/3/2/6/132682851/6949140.pdfIn PDF document text
    • http://loxugug.corpuschristievansville.org/uploads/1/3/2/7/132740873/643813.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/1/0433/2562/0374/files/xilozomavupukekiposak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8763/4338/files/43141820775.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3803/1518/files/nobegisot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2891/4074/files/dowixupumozibavizezajepel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0157/6604/files/tafomuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0600/9242/files/63925406111.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7092/2655/files/33918916019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/juxupajajivamuwiri.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 4

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_off00006bae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BAE 5168 bytes
SHA-256: 30f823c520519d2d47f18baed1383245e57e16ff6ed52deac24ed205f410092c
font_01_sfnt_off00007d5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D5C 10544 bytes
SHA-256: 438683234af2bccd34cf016994a258c4316a0b5a4885e1a777227677b88de58c

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