Malicious PDF — malware analysis report

Static analysis result for SHA-256 118299e40e6dda5e…

MALICIOUS

PDF

40.1 KB Created: 2020-08-11 17:04:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1c9ce12785d004fae6e412cbdde8c873 SHA-1: 8bfa215240e13846a606562d93d76ad21ac4ff26 SHA-256: 118299e40e6dda5e6ee2c4924c1424dc0c827269f4ec17b849054d35dc69985b
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, many of which are hosted on Shopify and appear to be part of an SEO link farm designed to attract users searching for specific documents. The primary redirector URL, https://ttraff.com/wb?keyword=fisica%20classica%20volume%201%20pdf%20download, is flagged as malicious and likely leads to a phishing or malware distribution site. Although no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a social engineering tactic to drive traffic to malicious infrastructure.

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/wb?keyword=fisica%20classica%20volume%201%20pdf%20download In PDF document text
    • http://xawixaxop.translanguagingforebs.com/uploads/1/3/0/8/130873995/87158ec0a9.pdfIn PDF document text
    • http://files.cunyhpcs.org/uploads/1/3/0/8/130874655/tigegeroperu-pojududexopidi-wopubiduja-rolok.pdfIn PDF document text
    • http://files.drbrendaeabbey.com/uploads/1/3/0/7/130775701/c6c0c7.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/1/0438/4977/7312/files/88828281604.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4225/7561/files/bet_on_it_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0355/8564/files/rs_aggarwal_quantitative_aptitude_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/87967576867.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3577/1558/files/quimica_organica_concepto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8986/0510/files/fender_passport_500.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4204/6103/files/jopifopalopenoro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5963/4591/files/nosobusepepufekutuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3860/5461/files/segapave.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0451/0887/files/68570469338.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1279/2225/files/single_phase_induction_motor_speed_control_methods.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5125/9803/files/fusionner_2_sur_la_meme_page.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4752/6305/files/sanyo_tv_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8976/5276/files/78665879184.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_off0000485a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x485A 5364 bytes
SHA-256: 60f032f866d91fbd58f549b0ab281174cd9525766853898ef9c0f63c6d1cabde
font_01_sfnt_off00005aa0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AA0 10684 bytes
SHA-256: 1898102045f12b2c5fb1c431e716421d1279c03d6989ddabfcba93de604d0aad
font_02_sfnt_off00007d7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D7D 16392 bytes
SHA-256: 954f30c1cce2e3a00f07cb0ababb04bf86a3a3c34ed8da2fc782bdc014231390