Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f74f3a23200578d…

MALICIOUS

PDF

41.9 KB Created: 2020-08-08 14:30:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ae5a1e3102e7ffe252a31129fc614362 SHA-1: 4ddb421bf10bcd07cbdfe802e86166e503c4865c SHA-256: 9f74f3a23200578db946ac7321cb56f1a05cfad1c0c530f5a4c0cf9df91a3e51
194 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with many links pointing to Shopify domains hosting other PDFs. One prominent link, 'https://ttraff.cc/pify?keyword=business+plan+template+sba+pdf', is identified as a malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting the primary intent is to redirect users to malicious infrastructure. The SE_INVOICE_LURE heuristic further supports the social engineering aspect of this attack.

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=business+plan+template+sba+pdf In PDF document text
    • http://files.wildparrotsupclose.com/uploads/1/3/1/4/131437139/125815.pdfIn PDF document text
    • http://files.comealiveart.com/uploads/1/3/1/4/131406604/4021341.pdfIn PDF document text
    • http://files.silkroadresearchcenter.org/uploads/1/3/1/4/131438708/1bf520.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/1/0429/5104/9370/files/53284054210.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2359/7725/files/pevelej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0044/7655/files/36864160958.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/8284/6109/files/que_es_accidente_de_trabajo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0521/3854/files/50935747240.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5966/7363/files/ondas_armonicas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8491/3565/files/analytical_methods_in_economics_takayama.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9822/5320/files/fopavumuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0808/9509/files/81043174309.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6656/4507/files/vidosegozi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4218/6150/files/how_to_install_xv2_mods.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5460/4198/files/nixut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8524/2269/files/diagnostic_medical_microbiology.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6842/3330/files/turotubuwuxekekevede.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_off00006616.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6616 5280 bytes
SHA-256: df1413bb84bec1ddf2a6bd1b8b574d10784171ed3c046616d33eaf28f4ba92fc
font_01_sfnt_off000077fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77FB 10116 bytes
SHA-256: f3d4f3419c7052d0ebd97c2e39b2e2c686daf5e3e3cbd1a35cb003646d56d9bc

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