Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f6abded1cd7dc94…

MALICIOUS

PDF

56.9 KB Created: 2020-07-22 12:28:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ce33e7e336dfef971b14b32a30208d07 SHA-1: 3bda4db948b3c676b9a7ad6aef3fd783f69f44ae SHA-256: 1f6abded1cd7dc94aa756ef40d4ee6412dbcdc5e22d4c3a86f5c0aa52855952f
194 Risk Score

Malware Insights

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

This PDF file contains numerous links designed to create a link farm, with a critical heuristic firing for a malicious redirector. The primary redirector URL, https://ttraff.ru/pify?keyword=faringitis+bacteriana+y+viral+pdf, is used in conjunction with SEO tactics to lure victims. While no scripts were extracted, the PDF structure and embedded links strongly indicate a phishing or scam attempt.

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=faringitis+bacteriana+y+viral+pdf In PDF document text
    • http://files.sofl.afaparents.org/uploads/1/3/1/4/131408970/df11d.pdfIn PDF document text
    • http://files.milamcountybiz.com/uploads/1/3/1/3/131379874/zemisap.pdfIn PDF document text
    • http://files.lynnpetersongallery.com/uploads/1/3/0/7/130738988/5990471.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/1/0427/9002/7430/files/fibexodaxul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3191/9765/files/jinafupuxikegubaruxuso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8073/6165/files/temumup.pdfIn PDF document text
    • https://bolazeboju.files.wordpress.com/2020/06/60745691749.pdfIn PDF document text
    • https://fidedafekulo.files.wordpress.com/2020/06/58762066111.pdfIn PDF document text
    • https://vikukixiv.files.wordpress.com/2020/06/74941924720.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7974/6201/files/todewaluxazufagaxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1020/3556/files/16395722241.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/14981909947.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8794/6133/files/galuvutijofaxukizojinuzi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9029/4437/files/63631289055.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3387/8940/files/88517426946.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/53940500656.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_off0000a121.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA121 5256 bytes
SHA-256: a39412a80803adb3816ff2043bb26b94c6c7b8f03c9e6e1b083d583ad8eb83a8
font_01_sfnt_off0000b312.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB312 10272 bytes
SHA-256: 54190083a2af86b827516ee754c23f721e272488a856848d1db8cb553f05b86c

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