Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2b7f0de6ac9c4b7…

MALICIOUS

PDF

41.2 KB Created: 2020-08-15 02:43:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 57f4eaa296474990e94db13e338f5331 SHA-1: 4db39fc7ac070bb5db0bb481097af83d05a4e77e SHA-256: b2b7f0de6ac9c4b72986ecb6161f3d2963286acbe0f6c73af88d3a829b4d4a43
194 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with a critical heuristic firing indicating a malicious redirector. The primary link, 'https://ttraff.com/pify?keyword=3ds+max+tutorials+2019+pdf', is designed to lure users by appearing as a search result for a specific PDF. Another embedded URL, 'http://lotujof.stonegatekilleen.com/uploads/1/3/1/6/131606490/8c4fc9922eda289.pdf', also points to potentially malicious infrastructure. The document body contains garbled text but includes the primary malicious URL, reinforcing the lure.

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=3ds+max+tutorials+2019+pdf In PDF document text
    • http://lotujof.stonegatekilleen.com/uploads/1/3/1/6/131606490/8c4fc9922eda289.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/1/0433/9197/5580/files/42072238276.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4774/6726/files/tamunepoxijuzusota.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7179/0486/files/wupavexi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/5827/8050/files/nfl_strength_workout.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/4412/3303/files/livro_calvinismo_e_arminianismo_evanglico.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/1007/6322/files/99765430647.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3859/6510/files/form_llc-_12.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0866/2440/files/genemapobilavurinapetam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0166/6969/files/45087135126.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4752/6305/files/nekisu.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 3

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_off00006051.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6051 5804 bytes
SHA-256: a4db6260b38ea61d102f74c40537a1df0988ae8093f704d1709e188194d0b2e2
font_01_sfnt_off000073ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73FF 10816 bytes
SHA-256: 102b2fd7e785d66830fb641af13dd4b394b6f1a90221df97705e8d2d533bee28

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