Malicious PDF — malware analysis report

Static analysis result for SHA-256 f78280f055e651b4…

MALICIOUS

PDF

43.1 KB Created: 2020-08-14 23:12:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6656fe244595aef7108b6c2795fc3e23 SHA-1: e38367bd8a188a23259f246cf5412e9f36b68114 SHA-256: f78280f055e651b4896f6579067c2226afb09c27bf4b9f13e3a37b73ba99e922
194 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=uniform+cost+search+java+code'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, including one to 'https://cdn.shopify.com/s/files/1/0432/2790/6206/files/vatinejorap.pdf'. The document body, though heavily obfuscated, contains these URLs, suggesting the document's primary purpose is to direct users to malicious or deceptive content via these links.

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=uniform+cost+search+java+code In PDF document text
    • http://files.grapevinehairsalon.com/uploads/1/3/1/4/131483421/1f11b617260c.pdfIn PDF document text
    • http://files.bonniewudesign.com/uploads/1/3/2/7/132712251/6210600.pdfIn PDF document text
    • http://files.charmsandsparklebyria.com/uploads/1/3/0/7/130775402/nulis.pdfIn PDF document text
    • http://files.cozy-trips.com/uploads/1/3/1/4/131438046/natujapuzurefo_sukogerag.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/1/0432/2790/6206/files/vatinejorap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7056/3239/files/99882935758.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7709/8913/files/what_is_a._gitconfig_file.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6497/5765/files/60141295512.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5562/0006/files/chrome_os_for_desktop_pc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6189/4565/files/80305587833.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3443/4969/files/jodamipexubudi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7753/3856/files/bubisedaranidobe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8134/3900/files/80174703375.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8030/3270/files/tisadozux.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005fce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FCE 5356 bytes
SHA-256: 6a529361fe526b3ea0ca910043543d2873911847d4be1879eb1bc51cdede4156
font_01_sfnt_off000071db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71DB 14652 bytes
SHA-256: d7c153f1945587b4ed0a541e8b8490e138f052772b4719a4b089ee3db1bcecb4