Malicious PDF — malware analysis report

Static analysis result for SHA-256 b924ed1cb4cd6102…

MALICIOUS

PDF

56.0 KB Created: 2020-08-07 23:25:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3fb8081ffa828ee4ee33220b251d0c44 SHA-1: 7700c6969ca9824b453ad708500681527d5650c4 SHA-256: b924ed1cb4cd6102b2fd3fff74bc5fb4aa4915c10c36810a5da81a1714c40a2c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=modulo+ritenuta+d+acconto+pdf'. Additionally, it exhibits a PDF link farm behavior with numerous embedded links, many hosted on Shopify. The document body, though heavily obfuscated, contains the same redirector URL. This suggests the primary goal is to redirect the user to 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=modulo+ritenuta+d+acconto+pdf In PDF document text
    • http://tixeponed.davenportsandgravel.com/uploads/1/3/0/9/130969060/rigoviz_lekenoru_wobolujodomezu_fukigubad.pdfIn PDF document text
    • http://files.dtoxtogo.com/uploads/1/3/0/8/130874058/zogiwiwakuwuz.pdfIn PDF document text
    • http://files.girlscoutsu440.com/uploads/1/3/0/9/130969546/jupalijonagape.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/1/0428/9835/8432/files/49893706483.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6056/0021/files/bugatolan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2458/7674/files/xanalovalemox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3041/2437/files/precalculus_ron_larson_9th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1826/4469/files/zowuwobagifipapijogili.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7003/7917/files/rafalenejefojemogabiri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3422/0456/files/fabiboxowigokizes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5604/7004/files/59554924718.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8607/8369/files/suliloboguvijuxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0769/6286/files/aseptic_food_processing_operation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2205/6600/files/38550479461.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5505/5002/files/35707850848.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6436/0100/files/patikotimi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7441/2949/files/sugaxomifutubaributevusev.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
🗂 Part of campaign: mitchellhabitat.org 8 samples

Related samples 1

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_off00009d74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9D74 4976 bytes
SHA-256: 16585402bafdfa406c8d49877d0de46dc3f071218391ef337e5d87ac77476555
font_01_sfnt_off0000ae7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAE7D 11228 bytes
SHA-256: 0645310a43c5631ad6063768a7b73e05dd59e9ef628012d01b05b7c66a4ba62f

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