Malicious PDF — malware analysis report

Static analysis result for SHA-256 1fac3dc84de68a8a…

MALICIOUS

PDF

48.1 KB Created: 2020-08-03 23:56:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ce1befd05355376d4b6b98655ddf6e20 SHA-1: 4ee4f77f8a933823181810a0806b890f5b5e640d SHA-256: 1fac3dc84de68a8ab7a6e7f427a4b28fd89e5725d67b51b2bdfdb772d65528ac
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links designed to appear as legitimate PDF downloads, but they redirect to a malicious URL (ttraff.cc). This indicates a phishing or scam attempt, likely using a link farm to distribute malicious content. The ML classifier strongly supports the malicious verdict.

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=conceito+de+pesquisa+qualitativa+pdf In PDF document text
    • http://files.magneticislandyoga.com.au/uploads/1/3/2/6/132680867/2724559.pdfIn PDF document text
    • http://files.ninatongthaispa.com/uploads/1/3/0/7/130739758/wofap.pdfIn PDF document text
    • http://files.petervuphotography.com/uploads/1/3/0/9/130969054/rosuxizejojedu.pdfIn PDF document text
    • http://files.yangartesson.com/uploads/1/3/0/7/130775337/c1fd2e79.pdfIn PDF document text
    • http://files.melissaragland.com/uploads/1/3/0/7/130776022/f4a1b47a6a183.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/1/0434/4256/9368/files/biposuvimomirofekesuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4017/8333/files/kusugov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2568/6951/files/2642058186.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2756/9576/files/1711601537.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6482/6783/files/nitibu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8850/2174/files/nalolesutefuve.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0185/6668/files/18646336880.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1242/9723/files/bofixomewu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4073/5381/files/kegabobepewosalebapex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4777/8469/files/watch_jeeper_creepers_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/30553092986.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: carriagehousecinema.org 5 samples

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_off00007c2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C2F 5144 bytes
SHA-256: d9c2f41f6744b4cdd97a0037656620ccdae8f5b5bfe95482d3ce75bde69ab493
font_01_sfnt_off00008dd0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DD0 11932 bytes
SHA-256: 991ca9bbac7f8307ef3283a42097e858354ee4437bb4e60908579ee83c024194

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