Malicious PDF — malware analysis report

Static analysis result for SHA-256 0876653dcbe3a4df…

MALICIOUS

PDF

51.0 KB Created: 2020-07-28 15:06:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 841ed4c9397bd2b41ec50ded87553327 SHA-1: 72f6b662e548d331753bb5ec1c1fee4240e58ae7 SHA-256: 0876653dcbe3a4dff303d729cab7ebc92ff6d7353d93f24f685460f18b5f9cec
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links pointing to redirector infrastructure, specifically `https://ttraff.com/pify?keyword=reformat+code+php`, which is flagged as malicious. The document body, though heavily obfuscated, suggests a lure related to code reformatting. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm designed to obscure the ultimate destination and potentially distribute further malicious content.

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=reformat+code+php In PDF document text
    • http://files.jessereyesdesign.com/uploads/1/3/1/3/131380440/menapoze_rikuzizez_zusirakeza_salexes.pdfIn PDF document text
    • http://files.convictedprinting.com/uploads/1/3/1/8/131871518/vazevavumina.pdfIn PDF document text
    • http://files.clubcollege-bound.com/uploads/1/3/1/4/131408581/aa427273.pdfIn PDF document text
    • http://files.jamtumedia.com/uploads/1/3/1/3/131398010/1102766.pdfIn PDF document text
    • http://files.videoheads.co.uk/uploads/1/3/1/4/131406386/a01ffffe4db.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/1/0434/0645/9029/files/47931896900.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1490/6275/files/bider.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2885/7503/files/86915759895.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7430/4662/files/73788476851.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vibuzos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5245/7369/files/kigalisasi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5604/7004/files/82410966808.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6214/0840/files/zapagewobob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4641/1162/files/38463719815.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_off000077c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77C4 4828 bytes
SHA-256: 8caa26df318bdc036cd0ecabad2bcebb90282569357d0c1364a32a3c165ce37f
font_01_sfnt_off0000882f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x882F 17104 bytes
SHA-256: 8ca1b098b8d3b24d0a12ad6db41162c3f7a47a7c9b07db29e95f5429a761d227

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