Malicious PDF — malware analysis report

Static analysis result for SHA-256 46c077a08de40aa5…

MALICIOUS

PDF

44.8 KB Created: 2020-08-15 21:57:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b5e32317fd1d0f879f14a83e8064da0e SHA-1: 930a2319a1c095b15621964f8f0948ac9af43265 SHA-256: 46c077a08de40aa599c904b6af57a7340b3f7994a6ae2e378caf1a9570a921b0
194 Risk Score

Malware Insights

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

The PDF contains a high number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'ttraff.cc'. This suggests a link farm or SEO poisoning tactic to distribute malicious content. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/wb?keyword=how%20to%20draw%20a%20caricature%20pdf', indicating an attempt to lure users with a seemingly relevant topic. 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.cc/wb?keyword=how%20to%20draw%20a%20caricature%20pdf In PDF document text
    • http://files.jamesfarris.net/uploads/1/3/0/8/130814195/rovulepipu.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/1/0434/3929/2577/files/jojamakefopenosawinova.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5965/9420/files/makerere_university_courses.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0654/7352/files/autodesk_123d_design_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5619/1893/files/gewunidefifij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8178/4726/files/gimuwigofibukav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2299/6888/files/84719613909.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2402/2677/files/zosabusebefunolepowawe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4355/2416/files/80967611492.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0418/9096/files/rugupekot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5127/6696/files/zugikamekuzemunezab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4071/9516/files/12328550991.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3195/1517/files/tremble_chords_c.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9892/3427/files/99124884711.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 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000649f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x649F 4768 bytes
SHA-256: 5d54f58377779d13bcc03f41421f3a3a7f93f3a02d61a16d71cf89f82c9b64f3
font_01_sfnt_off000074f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74F8 10240 bytes
SHA-256: 018e5fe34eb93b48e95b0189a33f4596899036360e641ab2d99c7b2da0966e97
font_02_sfnt_off000097b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x97B4 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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