Malicious PDF — malware analysis report

Static analysis result for SHA-256 752e74e69a5d4bae…

MALICIOUS

PDF

51.1 KB Created: 2020-08-06 17:56:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2600d604c96fc05b848357b50fc359fb SHA-1: 2346e68c17ceb16d1fdfc52993dceecacf5943a3 SHA-256: 752e74e69a5d4baeb687c6489a3500dfb32bf0e26b4421794f12efa6b35e6106
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to malicious infrastructure, specifically a redirector at 'ttraff.cc'. This is combined with a large number of external PDF links, suggesting a link farm or SEO scam. The ML classifier also strongly indicated maliciousness, supporting the conclusion that this document is designed to lead users to harmful content.

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=d%25C3%25BCnya+haritas%25C4%25B1+siyasi+pdf In PDF document text
    • http://files.keepcalmwaxon.com/uploads/1/3/1/4/131437064/cc6a15.pdfIn PDF document text
    • http://files.handmadebylouisa.com/uploads/1/3/1/4/131437474/paxubogorejoroges.pdfIn PDF document text
    • http://files.stuartpeterman.com/uploads/1/3/1/4/131408371/5031814.pdfIn PDF document text
    • http://files.heartfelthandsbirthservices.com/uploads/1/3/1/8/131871874/238722.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/1/0431/1656/0550/files/50252173897.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1086/7871/files/tijepafidiroputogeruvomad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4379/0760/files/47675297771.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9970/7810/files/lezifekituwofa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0627/9332/files/togemakowabivifuku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5450/5885/files/73926481575.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8815/0690/files/xeneto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7644/3543/files/bomekoraxadadosa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0009/4112/files/xedugutigikakavej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9008/1960/files/27485744302.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0507/4838/files/zilogasosobelo.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000085c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85C1 5352 bytes
SHA-256: ffd1aaf4e343dc7e090f42b1a5793ca320ef40a8d6bc83ff6b9aa8dff882fd71
font_01_sfnt_off000097cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x97CC 12416 bytes
SHA-256: 222e0e7bee39c925dcd50bb173617578cf7e42a5c690cc6da1967a98f7a7d5ea

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