Malicious PDF — malware analysis report

Static analysis result for SHA-256 c297af243b6ed4c4…

MALICIOUS

PDF

32.4 KB Created: 2020-08-19 22:25:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f654fb3bdaa525350ea650ad50666d27 SHA-1: 8ac9d592380a8ed9c9f157ff049328a300ab93c4 SHA-256: c297af243b6ed4c4f46dcb5a660461e8fb2048661de867e0c6b08a2b27a7a731
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF was flagged by a critical heuristic for linking to known malicious redirector infrastructure. It also contains a mass external PDF link farm, with many links pointing to Shopify domains, likely as a way to disguise the malicious nature of the document. The embedded URL in the document body, 'https://ttraff.ru/pify?keyword=cute+teddy+bear+cartoon', is a strong indicator of a malicious redirector. The ML classifier also strongly indicated maliciousness.

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=cute+teddy+bear+cartoon In PDF document text
    • http://files.localbeetmealprep.com/uploads/1/3/0/7/130738720/4707527.pdfIn PDF document text
    • http://files.bahamassportsnetwork.com/uploads/1/3/0/7/130775027/xodazel_gazutovapotawe_dabalex.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/1/0433/2208/1448/files/99540587915.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kexuxedixu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6125/6091/files/69333400473.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9825/8088/files/letatugotal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9597/3276/files/20917100912.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6053/5196/files/satisaderisatekizotelun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0811/4340/files/regela.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3524/5216/files/bobrick_b_270.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0994/1415/files/tirob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7443/7791/files/polaris_sportsman_500_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5249/8070/files/85621378764.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4933/7507/files/92424802317.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1056/4002/files/15606709207.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
🗂 Part of campaign: bahamassportsnetwork.com 4 samples

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_off000044ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x44AC 4868 bytes
SHA-256: 0831b112e15e8815b6a54cd4fa5be38bdd276cdbcd64c604b562cfb91e7a8238
font_01_sfnt_off0000554a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x554A 9292 bytes
SHA-256: d59a368cb58301049c4aafa554ab55af8deac7d6b0ad30f16817025b659107e1

Open this report in the interactive analyzer, or submit your own file for analysis.