Malicious PDF — malware analysis report

Static analysis result for SHA-256 87ecd2d9b8124602…

MALICIOUS

PDF

55.9 KB Created: 2020-08-04 03:05:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a2696ee462906079f44993621d8123d0 SHA-1: 2bc09984195ca1a69675fa3a4b2cc50e52951151 SHA-256: 87ecd2d9b8124602cdbfe802e177ee94f1898d9f12eb1db710e114f89db46825
194 Risk Score

Malware Insights

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

The PDF contains numerous links designed to appear as legitimate downloads, but they redirect to malicious infrastructure. Specifically, the link 'https://ttraff.cc/pify?keyword=fun+periodic+table+worksheets+pdf' is identified as a malicious redirector. The document's structure and embedded links suggest a phishing or scam attempt, likely using a social engineering pretext to drive traffic to malicious sites.

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=fun+periodic+table+worksheets+pdf In PDF document text
    • http://files.iamterrancebonner.com/uploads/1/3/1/3/131384113/2501225.pdfIn PDF document text
    • http://delik.carpetcleaning352.com/uploads/1/3/2/6/132682989/ropefemeretesov.pdfIn PDF document text
    • http://files.decgallery.com/uploads/1/3/1/3/131384789/cc8b20d.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/1/0432/5857/7064/files/vufadunot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5320/1046/files/4143094767.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1993/4628/files/7557734076.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7617/3472/files/48260512075.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5316/2394/files/xoxerawidikos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5769/2320/files/samsung_c410w_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2216/3876/files/jidulereperaxoxonafipija.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0224/6814/files/vapizamatufokijuvovudaza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1605/2123/files/69875203488.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7148/8668/files/77631525210.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8995/8814/files/vejobamufoligizanifazuxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9212/3560/files/72621142739.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5196/5855/files/69994716244.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_off00009cae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9CAE 5496 bytes
SHA-256: f689751f391fd0f941e24d7c247296c6ddee4aa8b28621723f2515966bf788f4
font_01_sfnt_off0000af69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAF69 10240 bytes
SHA-256: 678b2ec9d02334f42282b3d72657480504a2c11d295fb08bfe5f77973c5fc883

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