Malicious PDF — malware analysis report

Static analysis result for SHA-256 215b23b17037fac4…

MALICIOUS

PDF

46.3 KB Created: 2020-08-08 05:17:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a118c48931ce3e77d346d4c76100cdf9 SHA-1: 1f2ca7c30692d61b231d6f842408229cb76dafd9 SHA-256: 215b23b17037fac4e1da19f9e79ab2fc3d1d3e5c9384693bdddad1a20954e19e
194 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=thesis+abstract+format+pdf'. It also exhibits characteristics of an advance-fee scam lure, suggesting a deceptive purpose. The document body, though heavily corrupted, contains fragments of the lure text and the malicious URL. The presence of a link farm further indicates malicious intent, likely to distribute further payloads or engage in SEO poisoning.

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=thesis+abstract+format+pdf In PDF document text
    • http://files.couplematters.org/uploads/1/3/1/4/131452942/d3288e.pdfIn PDF document text
    • http://files.abtc2018.com/uploads/1/3/2/7/132712206/jonanomeliwoxivepoji.pdfIn PDF document text
    • http://files.eventsforafrica.com/uploads/1/3/0/8/130814195/2273336.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/1/0430/4194/7801/files/roxexumevenirob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7039/7352/files/ravaludirivun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/49090326843.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5582/3525/files/runegozotubifokalugif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2287/5800/files/99893037207.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7352/8213/files/litabujejamopakaso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0161/8327/files/midavemidexexo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9360/6046/files/81904952645.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/biludetejuvujatolometa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7791/9129/files/mulogugotupezujomu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0845/7885/files/application_for_schengen_visa_italy.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 8

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_off000068e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68E7 5132 bytes
SHA-256: 085e05a2ff60524de671f8798f4093c8ec1564d39f2607a9a91a71ee970d2353
font_01_sfnt_off00007a50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A50 10560 bytes
SHA-256: d643a1400cb09d4d57d51edd3c491e69ebf54130ee1b4b32fd0cb62635ebab89
font_02_sfnt_off00009e62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9E62 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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