Malicious PDF — malware analysis report

Static analysis result for SHA-256 5163ff998b42272a…

MALICIOUS

PDF

44.8 KB Created: 2020-08-05 03:20:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 60e841ec9f8b27d8f005207110d742f7 SHA-1: ce8cd595c18b26b95387764e1afcc1bf73075915 SHA-256: 5163ff998b42272a372641903bfea273d37050f9969e78a3acdeb47ea25ba001
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at traff.ru. This suggests a link farm or SEO poisoning tactic designed to funnel users to malicious content. The document body, though heavily corrupted, contains the malicious URL and appears to be a lure related to a "partition piano valse". No scripts were extracted, limiting the analysis of direct execution capabilities.

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=partition+piano+valse+am%25C3%25A9lie+poulain+pdf In PDF document text
    • http://files.ptbomassage.com/uploads/1/3/0/7/130776519/wadofuvifivo.pdfIn PDF document text
    • http://files.guesthouseouassaggou.com/uploads/1/3/1/4/131438509/8192980.pdfIn PDF document text
    • http://fibefif.marschnereyemd.com/uploads/1/3/0/7/130775953/komulituxoxilure.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/1/0428/0962/2691/files/riwenanezijatezoboj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1816/6167/files/58449146882.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0781/8398/files/wofolajowogar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6536/0027/files/48809856262.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7395/4204/files/79856044522.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0964/5478/files/27930327609.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4667/4330/files/kulajitigujowiludenuxit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0595/8565/files/internet_of_things_examples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2207/4534/files/23829449612.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8144/9118/files/83165293781.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9501/4042/files/92603222777.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1312/8863/files/1995_isuzu_trooper_owners_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2816/0413/files/99538076065.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3239/5426/files/mathematical_analysis_walter_rudin.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000563a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x563A 5392 bytes
SHA-256: 484c624ad9fd0241b37861ca8da835f1dc437b463a882801ae096fbf99c649d2
font_01_sfnt_off0000683b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x683B 11660 bytes
SHA-256: f81c7c14984d0308dbeb1d7af9d2bcad99c41d09dceccee91c62ef2b30eb5867
font_02_sfnt_off00008d9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D9E 16312 bytes
SHA-256: bf8f9ece8d9d74ce2d7a98a07ee1bb8f4056faf702b3b1702118181e85f1b939