Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dd4202f9243b15b…

MALICIOUS

PDF

57.0 KB Created: 2020-08-10 23:50:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 284e470659b6515a9adba6035bef0385 SHA-1: 39007855aa0c32175cbd353d4fa09fc5b25a24f6 SHA-256: 1dd4202f9243b15bc419e2c0b3368e0e316960b7112effc270c8e6ab759d7af2
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The document body also contains numerous links to external PDFs hosted on Shopify, forming a link farm. The primary malicious URL identified is https://ttraff.cc/pify?keyword=logical+reasoning+sample+questions+and+answers+pdf, which likely serves as a lure to a malicious payload. 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=logical+reasoning+sample+questions+and+answers+pdf In PDF document text
    • http://files.altoonaenglishclub.com/uploads/1/3/0/7/130739218/wogaxeluzojas_vubabozi_pakedegisiji_ruras.pdfIn PDF document text
    • http://files.whitepeacockcoffee.com/uploads/1/3/1/4/131436971/7dad80.pdfIn PDF document text
    • http://files.theidealcrew.com/uploads/1/3/1/3/131380171/wijufade_buxuto.pdfIn PDF document text
    • http://files.pmrayworlds.com/uploads/1/3/0/7/130776003/fililutipuvuxapife.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/1/0434/9375/2997/files/5314933368.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/51025654711.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8609/4248/files/bank_sbi_po_syllabus_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/19194700937.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1339/7924/files/13432009372.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9128/7452/files/80161281405.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9535/9637/files/fimipenuxiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3075/8054/files/agents_of_shield_season_3_kickass.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7689/5398/files/52314434243.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8795/3053/files/d_d5e_player_s_handbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9074/6271/files/lowes_watson_blvd.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9890/6528/files/jodapaneraxuturusinedi.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_off00009f29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F29 5636 bytes
SHA-256: 7e561fd67fdcc5edd2961f1ac9d17339ed4d4f74c61e14f7a17c44a2d9194bad
font_01_sfnt_off0000b249.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB249 10704 bytes
SHA-256: bac4f6adea53becbcce24d189890a47b547377ac0c82cbdd4e0b836679b90724

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