Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a4c85eb1b02d72e…

MALICIOUS

PDF

41.1 KB Created: 2020-08-04 06:56:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8963be0c8480f946e350d0ecc4e2f64d SHA-1: 32e51d9295ea970156b552b15ff3c3379348a24a SHA-256: 9a4c85eb1b02d72eeb24e0679d46acc96d5ccd3a2ecfa44a4a83751ca05ec72b
202 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=bais+yaakov+cookbook+pdf'. Additionally, it exhibits a PDF SEO link farm behavior, with numerous external PDF links, many hosted on cdn.shopify.com. The document body, though heavily obfuscated, contains the same redirector URL, suggesting a deliberate attempt to lure users to potentially malicious content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=bais+yaakov+cookbook+pdf In PDF document text
    • http://files.drjoybozzo.com/uploads/1/3/1/3/131383294/2224778.pdfIn PDF document text
    • http://files.moveks.org/uploads/1/3/0/8/130874120/xogazakipagegi_bivexasa.pdfIn PDF document text
    • http://files.kipawa.org.uk/uploads/1/3/1/3/131379700/4638674.pdfIn PDF document text
    • http://files.rocoveryfitness.com/uploads/1/3/1/4/131437318/3615142.pdfIn PDF document text
    • http://files.sarahgoetzskincare.com/uploads/1/3/0/8/130874482/joxesijijaxuzi.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/1/0429/2955/3575/files/giguvabe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1653/3654/files/tusil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3486/9921/files/veluseti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8764/3302/files/lisivopojudijuzukap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8154/7428/files/saturated_steam_temperature_table.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4933/7507/files/11745732983.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8014/6339/files/zepogazumaruberosokuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6437/8022/files/52500685176.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8539/7152/files/loluna.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6716/3302/files/64488030930.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4758/1856/files/63613160872.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_off00006093.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6093 5436 bytes
SHA-256: 3edb1743a4b55d24b0a7c658d1848b9534df2de7ea2312312669eccf7a20c0ac
font_01_sfnt_off00007335.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7335 10636 bytes
SHA-256: 329bb05bbc33a6c57a330c531422d2a682fb8da1874b353a58741aba20aab1c7

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