Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea85f983774eac41…

MALICIOUS

PDF

38.6 KB Created: 2020-08-08 00:21:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fb5f4bf141bfe17b61be0827ca61e72b SHA-1: b2230523d564e8707dbc54691ec12975db627053 SHA-256: ea85f983774eac41e92ce202179974752ead2d72d6987701254f4d20c70bdd07
194 Risk Score

Malware Insights

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

The PDF contains a link farm designed to mimic search results, specifically for "Schindler s list guitar sheet music pdf", leading to a known malicious redirector at ttraff.ru. This indicates a phishing or scam attempt. The ML classifier strongly supports the malicious verdict. No scripts were extracted, limiting the analysis of the payload delivery mechanism.

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=schindler+s+list+guitar+sheet+music+pdf In PDF document text
    • http://files.lindsaywaxleracupuncture.com/uploads/1/3/2/6/132683400/49097035.pdfIn PDF document text
    • http://files.rmscranes.com/uploads/1/3/0/7/130775368/vujatazurezovafugeta.pdfIn PDF document text
    • http://files.crawlspaceencapsulations.com/uploads/1/3/1/8/131872298/zusujanoga.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7365/9290/files/38644967357.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7735/4143/files/soxenererubopixagitij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2013/9170/files/fonimip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4761/5649/files/komidepemidus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8435/6507/files/lejogepuwixel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7465/0261/files/17070138241.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8305/5782/files/kozazabupozanamituba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0374/8260/files/pisatatiwuradejibu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0803/2922/files/12381481209.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3127/3365/files/85244730952.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6122/9206/files/96818720201.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 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000049d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x49D0 5444 bytes
SHA-256: 6d1f69fee4a373e21c6dd5ec51f3aa91ae79fabd4f291ff95ac1efd74f068168
font_01_sfnt_off00005c15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C15 10440 bytes
SHA-256: 622d592e8f131e9f899965aef6a0af580703f783fd93952e3e78b3c1bb590d68
font_02_sfnt_off00007fad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FAD 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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