Malicious PDF — malware analysis report

Static analysis result for SHA-256 63d4a24c4518ab0b…

MALICIOUS

PDF

46.6 KB Created: 2020-08-19 23:44:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 904067829ea8b53a7b852fcaab9f8b48 SHA-1: 136165b031a64695eaa3d3e1bb3f014f1ae4412d SHA-256: 63d4a24c4518ab0b4565f048484f4f4c0fe256d751b206fe6676ab54a21ec90d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to redirector infrastructure like 'ttraff.com', which is flagged as malicious. The document body, though heavily obfuscated, contains the same redirector URL and references to 'corporate presentation template', suggesting a phishing lure. The presence of a large number of external PDF links further indicates a link farm or redirection scheme designed to obscure the ultimate malicious destination.

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=corporate+presentation+template+psd In PDF document text
    • http://files.nowwhat-services.com/uploads/1/3/2/6/132682585/pewiwi-teravewiki.pdfIn PDF document text
    • http://salilul.ouimassachusettslawyer.com/uploads/1/3/0/7/130775643/zawamazag.pdfIn PDF document text
    • http://files.belllog.org/uploads/1/3/0/7/130775827/2358242.pdfIn PDF document text
    • http://files.crazyabtcupcakessd.com/uploads/1/3/0/7/130740464/380879.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/1/0431/2449/0397/files/59472584695.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4752/6305/files/aleister_crowley.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6809/4629/files/reset_master_branch_to_upstream.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1423/4016/files/vozakipudisokan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4527/3251/files/analysis_of_algorithms_mcconnell.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2896/2715/files/objectives_of_annual_general_meeting.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3974/2369/files/susezukapujabok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2981/5705/files/verithanam_keyboard_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0677/0849/files/joputudilituxarodijovotu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2180/1371/files/john_deere_3020_wiring_diagram.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 8

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_off00006796.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6796 4916 bytes
SHA-256: 01fcb51a27aa78c629e0bc88a8b9015547cd6d27d0dec5977e804f553bb2d703
font_01_sfnt_off00007824.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7824 12028 bytes
SHA-256: 13ed38c9af97da71fd30c2d36e19220794e1d189ea81bf13e51a04c3ee0a083b
font_02_sfnt_off00009f83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F83 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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