Malicious PDF — malware analysis report

Static analysis result for SHA-256 8366b6d3083daf70…

MALICIOUS

PDF

38.7 KB Created: 2020-08-06 20:57:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: dce38e59f8cc8962124c796b67a46b4c SHA-1: d66f8fbb7faa8af37198dafd5d0e828bd29c95b8 SHA-256: 8366b6d3083daf700dfc26dac7fa180ccd61976d7c9420afc1ec7ba2a4990550
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service (ttraff.com) which is flagged as malicious. The document body, though heavily obfuscated, contains text related to 'msme schemes pdf' and the malicious URL, suggesting a phishing or scam lure. The presence of a link farm and redirector indicates an attempt to drive traffic to malicious infrastructure.

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.com/pify?keyword=dc+msme+schemes+pdf In PDF document text
    • http://files.kellyjacobsonstudios.com/uploads/1/3/1/4/131437930/e168581.pdfIn PDF document text
    • http://files.omalleyfoundation.com/uploads/1/3/0/7/130739265/bivixedewarag.pdfIn PDF document text
    • http://files.sjogsomerset.org/uploads/1/3/0/9/130969001/ae9df28.pdfIn PDF document text
    • http://files.calebpowellartist.com/uploads/1/3/1/3/131380849/9094147.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3917/0466/files/65257208892.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4711/6197/files/nupedusufawimomofikejaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0577/1927/files/dunepanifowe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9456/5271/files/latum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7578/8184/files/josegejuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4021/1105/files/16709051725.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5251/2918/files/karuna_reiki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3419/7666/files/xejanejokedaliwiwajozez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7592/0282/files/microsoft_sql_commands.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9699/8048/files/19434233110.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6332/9446/files/20102596851.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3624/5144/files/37464032184.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_off00004e7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E7C 5056 bytes
SHA-256: 39547a3cf941eaa190d99a8a3ab6d64b73ba2058dc014fccc354132f4cd09db1
font_01_sfnt_off00005f93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F93 9996 bytes
SHA-256: ce2d6257c8b84893694975285da4d31234da0e9f65c5b2018bd190b4f2d1e114
font_02_sfnt_off0000820e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x820E 2944 bytes
SHA-256: fde2dc7fe564c9fb2442a497639645e79a7e6adec832009ef78f86df68da3a40

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