Malicious PDF — malware analysis report

Static analysis result for SHA-256 048fc28eb760df09…

MALICIOUS

PDF

33.3 KB Created: 2020-08-10 06:29:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 52b306eca3c74c5cbd521125e8979b34 SHA-1: 01e7eefa3aa7dcdf31599136c76013369a841e41 SHA-256: 048fc28eb760df09c31309b71ca25d61e6152ea12c126669195917bb82d1fe56
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to a redirector URL associated with malicious activity. The document body and heuristics indicate a lure for free sheet music, which is a common tactic for phishing or malware distribution. The presence of a malicious redirector and a large number of external links suggests an attempt to drive traffic to potentially harmful sites.

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=believer+imagine+dragons+sheet+music+free+pdf In PDF document text
    • http://files.dprservices513.com/uploads/1/3/2/3/132303229/xukiduzivebuno.pdfIn PDF document text
    • http://files.dalemyersantiques.com/uploads/1/3/2/7/132711954/5137260.pdfIn PDF document text
    • http://files.nimatennis.com.au/uploads/1/3/1/6/131606965/4116325.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/1/0433/1700/2405/files/bimasonagu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0846/6845/files/stepwise_regression_spss.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dedijadexurusefux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7111/1330/files/rapelurojokavujizabilulo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8870/6717/files/applescript_safari_print_to.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9904/6553/files/14682398510.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1277/6351/files/zifugukasugon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6779/3817/files/xasakawavozufigezubeza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6295/1062/files/setejo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7250/4483/files/59155851387.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 6

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_off000044bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x44BF 5680 bytes
SHA-256: e8e7f7afbf45dad05802e26a7ab511bd63795c0c91dbfd9770152b180c0a60da
font_01_sfnt_off000057f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57F2 9464 bytes
SHA-256: 0bbc543df9413183c5669c4689501203d4594ca5de418ffc960384a6d090f0bd

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