Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d501555ef306f41…

MALICIOUS

PDF

56.2 KB Created: 2020-08-18 14:16:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2668b3cf58cdaab0120dbfa2ffac0c97 SHA-1: 71acf5a2d9129defff5c08ca0deb014f7382d4a0 SHA-256: 6d501555ef306f4147d2d68149a7dfc8b6b9001bf5552646fb1e543057f7565c
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains multiple heuristics indicating it is a malicious redirector and an SEO link farm, designed to lure users with a fake software download. The embedded URL 'https://ttraff.com/pify?keyword=bitdefender+total+security+2016++deutsch' is flagged as a malicious redirector. The document body, though heavily obfuscated, contains this same URL, reinforcing the social engineering attempt to trick users into clicking it.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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=bitdefender+total+security+2016++deutsch In PDF document text
    • http://tenudojot.ratatatstats.com/uploads/1/3/1/3/131380005/1207958.pdfIn PDF document text
    • http://files.ifsandwerestonemusical.com/uploads/1/3/2/8/132814826/3218049.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/1/0434/3506/5505/files/18355498828.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1143/1838/files/75715410596.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2756/9576/files/97452007788.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5603/7016/files/63456800502.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7692/7134/files/abortus_spontan_komplit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2567/0037/files/pamirigisizewexetitosow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4441/3350/files/4005433139.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6314/8706/files/satevawejelefuwisozef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4718/9670/files/xufutuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9282/8579/files/27253481229.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: ratatatstats.com 3 samples

Related samples 2

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_off00009c39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C39 5740 bytes
SHA-256: f8a9c84801dc6299544b353b7d1aa65914f3239442bf39d8a54730be196401a0
font_01_sfnt_off0000afbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAFBE 10560 bytes
SHA-256: 1650903574abcf4dad985c3ba614687cf0a4d31133c8b5b662e35b4db7fdbe60

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