Malicious PDF — malware analysis report

Static analysis result for SHA-256 469cb7f13e51f718…

MALICIOUS

PDF

55.1 KB Created: 2020-08-07 09:42:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5e43e40df199635b2bf1f5ceabf4f104 SHA-1: 3c5492390e64d8738355efd15174b3ce8c23f9bb SHA-256: 469cb7f13e51f71841b4047e8dcf1abf53b8f42fe93d85f949397ef1e00bceb2
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=banca+dati+concorso+carabinieri+2020+pdf'. This indicates the document's primary purpose is to redirect the user to malicious infrastructure. Additionally, a heuristic for a PDF link farm was triggered, suggesting a broad distribution attempt. No scripts were extracted, and the document body is heavily obfuscated, but the presence of the malicious redirector URL is sufficient evidence for the attack pattern.

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=banca+dati+concorso+carabinieri+2020+pdf In PDF document text
    • http://mipurux.saralazzaroni.com/uploads/1/3/1/6/131606027/496ee76619ed8.pdfIn PDF document text
    • http://files.sofiajagbrant.com/uploads/1/3/1/8/131856076/f5f1671979f5.pdfIn PDF document text
    • http://files.appaloosaspot.com/uploads/1/3/1/4/131453267/00a2deef.pdfIn PDF document text
    • http://files.gravelleybridgecpc.com/uploads/1/3/0/7/130739517/979010.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/1/0430/7291/3557/files/sch_search_inside_yourself.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0942/6079/files/xuwenime.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2875/0241/files/27777299736.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3598/4029/files/20593058758.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6123/8168/files/pujelodibifafamowaweje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6123/8168/files/nolozoni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0274/9347/files/campbell_biology_11th_edition_online_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3420/4568/files/5529297018.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2439/2087/files/zewikigulemisakavazuripuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3802/3581/files/principles_of_biostatistics_pagano_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3655/7987/files/pabekaxibinowofesejok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3489/3718/files/29359511120.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_off000076df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76DF 5580 bytes
SHA-256: 591adc2bb3453217bde2537ed201906dcde578e9d798b211b8167e00c9da5f24
font_01_sfnt_off000089de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89DE 15876 bytes
SHA-256: 46e138737db1b9037c16188531aa817a15597e4160a9a88ffe9b95aaca30f7b2
font_02_sfnt_off0000b9f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB9F6 16204 bytes
SHA-256: e93acd332f5893643511f4cefd38969ad5c744ad1b08842a788b6be7d277dd15