Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba171cb1a2299920…

MALICIOUS

PDF

33.8 KB Created: 2020-08-07 17:57:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 94fa2d6967bfafe1455ed606cbb45298 SHA-1: 7f2df9bc410b1649910239bb2b301dc8d4cab600 SHA-256: ba171cb1a2299920583ed4f98770158c8c598ddd0f6d0a715c21b7ad2d5d465f
194 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.cc'. This indicates the document is designed to redirect users to potentially harmful content. Additionally, a PDF link farm heuristic suggests the document is part of a larger SEO manipulation effort to distribute malicious links. The embedded URL in the document body, 'https://ttraff.cc/pify?keyword=american+red+cross+bls+handbook+pdf', is the primary IOC, likely serving as a lure to a malicious site.

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=american+red+cross+bls+handbook+pdf In PDF document text
    • http://files.estherliano.nl/uploads/1/3/1/4/131407890/tejabakadazij.pdfIn PDF document text
    • http://files.wayashealingpath.com/uploads/1/3/1/8/131856012/gemolafukotezevo.pdfIn PDF document text
    • http://files.regentcommunitytrust.org/uploads/1/3/1/1/131163836/miwito.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/1/0430/3945/7431/files/muwifegab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1632/1184/files/rejasapaxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0918/5691/files/psychological_capital_theory.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9309/8660/files/kajalobafig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/3511/2103/files/cash_audit_procedures.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5399/6442/files/unity_on_collision_enter_2d.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/7025/5267/files/harald_curved_greatsword.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0099/5741/files/87521256862.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2702/1480/files/34302045564.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/96951977507.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5188/4445/files/28510972195.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9628/6111/files/41021778981.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 3

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_off00004620.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4620 5588 bytes
SHA-256: b2fa90f14c8e83cc7af04c32d1686423a9a6860af00938a093ef9ba8a5d4d7ed
font_01_sfnt_off000058eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58EB 9808 bytes
SHA-256: 1b0af6123fde929e18b6b3aeb51285ce42d4bb543307d64f79c2f9a5a0286cac

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