Malicious PDF — malware analysis report

Static analysis result for SHA-256 76afa830af85ae85…

MALICIOUS

PDF

56.2 KB Created: 2020-08-10 02:16:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0c8fb9ba71753266bcf3394995ef0924 SHA-1: ea67eaa0c597a49c419239e29fd93873e3eb4633 SHA-256: 76afa830af85ae85493c006ad344b1cb4ea3398c88f70167b27cd5bfeb76447d
194 Risk Score

Malware Insights

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

This PDF document contains numerous embedded links, many of which point to redirector infrastructure like 'ttraff.com'. The document's body text and embedded links are designed to appear as a "Maths basic algebra formulas pdf" to deceive users into clicking these malicious links. The presence of multiple links to external PDF files, some of which are hosted on Shopify, suggests an attempt to create a link farm for SEO manipulation or to 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=maths+basic+algebra+formulas+pdf In PDF document text
    • http://josogarov.elenagorlova.com/uploads/1/3/1/0/131070450/5394772.pdfIn PDF document text
    • http://foron.motivationalmowing.com/uploads/1/3/1/0/131071252/koxemuwa_puloposakomon_gados_galezaga.pdfIn PDF document text
    • http://files.esainhospitality.com/uploads/1/3/0/7/130775607/gedawuw.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/1/0431/8511/1203/files/gixibikufozabomeledow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9436/7649/files/jazovujofumilupugolar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6426/2818/files/59007101447.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5543/2348/files/fejefitelunutat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8026/9477/files/buvinutugezipoposedubi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9164/6880/files/sega_genesis_collection_psp.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0023/3112/files/sowuda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2019/7789/files/90904012375.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5122/0124/files/panidipavavezekat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8529/9876/files/tozowor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7068/4317/files/21235607911.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 4

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_off00009326.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9326 5716 bytes
SHA-256: 31597076037c427aa9d64532d644162204b3aa3f5e23d60167099548882c8ee4
font_01_sfnt_off0000a679.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA679 14240 bytes
SHA-256: 7ca7a63623b0b7fd08d615317b47e2808d2698617151d3cd4ce4607467c55a58

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