Malicious PDF — malware analysis report

Static analysis result for SHA-256 064f2f022a797774…

MALICIOUS

PDF

59.5 KB Created: 2020-08-06 19:58:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 289e9504cdfde401f850d443b715d678 SHA-1: 9577b1d4cc639aa0927fd7c71b073cd2613eb8ea SHA-256: 064f2f022a7977742b157392386d6d8c3099b74bd566bda9f22221a2d3cfd08d
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.com) that is part of a link farm. This suggests a phishing or SEO manipulation tactic to drive traffic to potentially malicious content. The embedded document body text, though heavily obfuscated, contains a URL that matches the redirector, reinforcing the lure. No scripts were extracted, but the overall structure indicates a malicious intent to redirect users.

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=assam+tet+syllabus+2020+pdf+download In PDF document text
    • http://files.markseaton72.com/uploads/1/3/0/8/130874474/8527642.pdfIn PDF document text
    • http://files.goldkingdomint.com/uploads/1/3/1/4/131437648/sogewiwi.pdfIn PDF document text
    • http://files.gen2revcatholic.com/uploads/1/3/2/6/132681985/b6c4ccee8154.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/1/0438/8824/6936/files/11956580056.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/3651/7286/files/pedagogy_of_biological_science_tnteu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/1204107997.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8460/1758/files/24804878990.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9201/6280/files/tibufefibiborakipeka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3390/3783/files/25335404027.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9419/6902/files/zozepavepus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6581/8789/files/gilokebesikajekopuvuwobe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5099/0753/files/63134445676.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4235/6904/files/koxiwoxikeliwu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6838/3642/files/43730603599.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3038/0698/files/wasujitosixutuxufixewida.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6853/8521/files/elvis_presley_torrents.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008931.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8931 5688 bytes
SHA-256: 7800f49b2bb49ac975d2d4fdd7d34f8099498a9a575bfb679f9075f731405e3f
font_01_sfnt_off00009c94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C94 15104 bytes
SHA-256: 8333a55037f4082a5d8464e6c20ffae5f1323b1ebf6bf7e7da9090e147eea2ed
font_02_sfnt_off0000cb57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB57 16092 bytes
SHA-256: 39b2f4b99ee08965fd4836f89f628a00cde8346cb181131bba0308e80db8fb67