Malicious PDF — malware analysis report

Static analysis result for SHA-256 605e5447a5bf7789…

MALICIOUS

PDF

64.5 KB Created: 2020-08-26 00:48:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fa987db2f09d911ded9dbd07b502941a SHA-1: 92bc1783a3b47ab323a4e5fe6522d662d6d7bfc8 SHA-256: 605e5447a5bf7789d5b61789d62e6bc0fcc76917a6cdf23426d3703970757b46
194 Risk Score

Malware Insights

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

The PDF contains embedded links that point to a known malicious redirector, ttraff.me, which is likely used to host phishing content or distribute further malware. The document body, though heavily obfuscated, contains the same lure text and URLs found in the heuristics, indicating a deliberate attempt to trick users. The ML classifier also strongly flagged this PDF as malicious.

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.me/pify?keyword=graficas+isocuantas+e+isocostos In PDF document text
    • http://files.titanguitars.com/uploads/1/3/1/6/131606874/5755983.pdfIn PDF document text
    • http://tudul.nocofoodincubator.com/uploads/1/3/0/8/130814855/milelitopolow.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2877/4044/files/wuxewule.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9235/2928/files/euphorbia_stellata.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0668/1497/files/malenane.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0458/2745/7187/files/bugs_bunny_movies_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8072/1311/files/13603101670.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jakenetukuzalavat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1071/1971/files/kijutagunisore.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5199/9637/files/81530391861.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6108/3301/files/gixulopu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8978/8069/files/terolezujoginozivikolumij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4996/8035/files/mulan_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8006/4936/files/padajabudozuzuvimof.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: chefdavidbmorrison.com 6 samples

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b11e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB11E 4756 bytes
SHA-256: a5c75591afe1d6ec0c3ece1123c83442b11692f38a2d3f99146a4aed4d51c583
font_01_sfnt_off0000c157.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC157 11300 bytes
SHA-256: eb96435db00026ce557069865b253ee703b9c9d784cb60feec73439330208180
font_02_sfnt_off0000e771.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE771 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230