Malicious PDF — malware analysis report

Static analysis result for SHA-256 97b509907e185bb7…

MALICIOUS

PDF

38.2 KB Created: 2020-08-10 13:10:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5dc0f9dbcbdb6d4fe2844d5e6418201c SHA-1: 4aaacea2af394e195f84871000d326a5e61081d5 SHA-256: 97b509907e185bb7f1dc803d64fcd8f940901a88ee2855d327904d751d56b808
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. This URL is likely used to redirect users to a malicious site for phishing or malware delivery. The document body, though heavily obfuscated, contains references to the redirector URL and numerous other PDF links, suggesting a link farm intended to obscure the final malicious destination. No scripts were extracted from this sample.

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=bescherelle+conjugaison+espagnol+pdf In PDF document text
    • http://files.marinashay.com/uploads/1/3/1/4/131406518/440cbd99bb939f.pdfIn PDF document text
    • http://pazezu.liturgicalartsconference.com/uploads/1/3/1/4/131407469/146a91d56484.pdfIn PDF document text
    • http://files.sweetcelebrationsllc.com/uploads/1/3/1/3/131380063/1772054.pdfIn PDF document text
    • http://tepod.tctinternational.net/uploads/1/3/0/7/130775997/3256514.pdfIn PDF document text
    • http://files.tylermany.com/uploads/1/3/0/8/130814902/dapojoborujewomega.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/1/0431/0820/4704/files/12747430773.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9617/7816/files/aula_internacional_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1602/8309/files/warizi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3122/2689/files/ansys_workbench_19.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2535/7206/files/54724757906.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4829/6857/files/14006006212.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9954/3970/files/xejekigotofevu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2883/0625/files/petezisulawizide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9521/9623/files/81809930662.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4356/8278/files/73813453408.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9135/1969/files/ps3_emulator_for_pc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6519/6197/files/76168173349.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3351/8489/files/compress_scanned_file_size_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8027/8426/files/lewide.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000053ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53EF 5540 bytes
SHA-256: c6dc12a576cda511d87840341da791d4ea23912b5699a340c6a8f5e56d122a03
font_01_sfnt_off000066bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66BD 10676 bytes
SHA-256: a0ae87ff3e9c40dc89afeda7830533e5755bdac8dbed5b5ff9c7ca2aac5cd3ba