Malicious PDF — malware analysis report

Static analysis result for SHA-256 392fe8e2713f6031…

MALICIOUS

PDF

40.7 KB Created: 2020-08-24 21:46:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e2f9b7d218be3d913ce3fe4a2752d2c9 SHA-1: 081fa60b4f38c563e357b9c76640db969d16d78d SHA-256: 392fe8e2713f6031aa1c95424dbd6ecf714bcaed7aa8204c09313e9b3ae0abbd
194 Risk Score

Malware Insights

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

The PDF contains a prominent link that, when clicked, redirects to a malicious URL. This URL is part of a link farm designed to attract users searching for specific software, in this case, 'Backyard Baseball 2001'. The ML classifier strongly indicated maliciousness, and the PDF_MALICIOUS_REDIRECTOR_LINK heuristic confirms the presence of a malicious redirector. The document body, though heavily obfuscated, contains the lure text and the malicious URL.

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=backyard+baseball+2001+free++pc In PDF document text
    • http://files.keithgriffithssquash.com/uploads/1/3/0/7/130776743/3906400.pdfIn PDF document text
    • http://files.mcmjanitorial.com/uploads/1/3/1/4/131406356/5b2cce2e6e7ba.pdfIn PDF document text
    • http://retiro.moannasworkroom.com/uploads/1/3/0/9/130969356/3952559.pdfIn PDF document text
    • http://files.mollyshappytrail.com/uploads/1/3/2/6/132683017/a499941e75.pdfIn PDF document text
    • http://kelomida.lakeoftheoaks.net/uploads/1/3/1/1/131164447/8785509.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/1/0429/2745/6419/files/getadugumefuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9030/3389/files/bejapa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2644/6496/files/impact_of_climate_change_on_agriculture_in_pakistan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6577/0135/files/trigonometric_identities_worksheet_introduction_to_identities_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8132/5980/files/lowijitilikemu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1184/1949/files/zesevenipiwegasabo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2799/5552/files/misetixivajes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0465/1882/9206/files/zusox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3765/4178/files/56941511526.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2631/7473/files/rudepizugesusux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6448/2202/files/toledepotewekifomeneler.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_off00005e47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E47 5832 bytes
SHA-256: 9103a15b0a5352e0c7c373c07382919a49dc1cebacdd24ba47b5d83e92128d3f
font_01_sfnt_off0000723f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x723F 10456 bytes
SHA-256: 6098036752717a462437236e4691cd8df26e641acc02eec100a537f91dfa208c

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