Malicious PDF — malware analysis report

Static analysis result for SHA-256 140e09d3795d6c2d…

MALICIOUS

PDF

48.2 KB Created: 2020-08-04 02:50:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a4dd8c5fe4e72e1c771331984eadedd1 SHA-1: ea63d3746d0a8946769958f35245734f8faf89f4 SHA-256: 140e09d3795d6c2d9594d785ad2b6b3646d695be6b82bf0435c5610ddee52fc3
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many of which point to a redirector service designed to obscure the final destination. The primary redirector URL, 'https://ttraff.com/pify?keyword=characteristics+of+computer+graphics+pdf', is flagged as malicious. This indicates a phishing or scam attempt, likely using the document as a lure to drive traffic to malicious infrastructure. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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=characteristics+of+computer+graphics+pdf In PDF document text
    • http://files.vacworld.net/uploads/1/3/1/3/131381681/bfafcb.pdfIn PDF document text
    • http://files.kelsrodreel.com/uploads/1/3/0/7/130775342/fagurufuwikona.pdfIn PDF document text
    • http://files.highlandgamesacademyscotland.co.uk/uploads/1/3/0/7/130739169/df07887a3b335.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/46391305542.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0775/2861/files/kupujabofem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2971/7407/files/barorreceptores_arteriales.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8144/0168/files/47205010622.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rasamonuje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7628/0729/files/wakinusazeregov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6333/6350/files/37202429927.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0026/5878/files/wileribibofuden.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9980/8149/files/tidokeremupoliji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2246/6720/files/durham_county_inmate_population.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6647/5174/files/vediz.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 5

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_off0000644e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x644E 5440 bytes
SHA-256: 71f2d553cf40916926eb13dd0342df95abcdb3fd63fceac41bfa696cc08700d4
font_01_sfnt_off000076a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76A1 12092 bytes
SHA-256: d82d57bc95ac9142f83f20ccafb2fff0a69e5766e9c39bd33e5b46f031f85907
font_02_sfnt_off00009d58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9D58 16040 bytes
SHA-256: 0d7b5de48ff5001cbee3948371e67b6999b3c8dc9da2328298d75d3db101b009

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