Malicious PDF — malware analysis report

Static analysis result for SHA-256 b9b309ea13dcabf1…

MALICIOUS

PDF

59.4 KB Created: 2020-08-07 01:57:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2e1f2bde246edf2bf951f937a4145689 SHA-1: 273742133d17e0c9081a99a8f69d9acc5aaa85d4 SHA-256: b9b309ea13dcabf1ae6ade24ae9176d71b8d7beb927211509188c56b965d6c80
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.cc) which is flagged as malicious. The document body, though heavily obfuscated, contains a reference to the same redirector URL, suggesting an attempt to trick users into downloading potentially malicious content. The ML classifier also strongly indicated maliciousness.

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/pify?keyword=jardines+colgantes+de+babilonia+historia+pdf In PDF document text
    • http://xevupuke.jasonmoliterno.com/uploads/1/3/0/7/130775971/2819225.pdfIn PDF document text
    • http://files.lorifurbush.com/uploads/1/3/0/8/130814254/lopiwuvivodixu-xidito-teteweg-vataduvol.pdfIn PDF document text
    • http://files.thegoodfeelinglife.com/uploads/1/3/0/7/130738700/nuded.pdfIn PDF document text
    • http://files.retrohacks.net/uploads/1/3/1/4/131437948/e8c3f298d3eff.pdfIn PDF document text
    • http://gigux.rto2go.com.au/uploads/1/3/1/1/131164250/8b9ca2.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/1/0435/8481/5259/files/baxubibesesa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0425/4615/files/xotirolozimobixotaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wunize.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4763/3575/files/workplace_bullying_in_the_philippines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6839/9524/files/sawarilix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9303/3117/files/doleposuvakepowusajame.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9616/9886/files/english_dictionary_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5725/8401/files/putitupidibibogan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0834/9592/files/41894377693.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1207/8243/files/16068612688.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1270/1854/files/wonawa.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 6

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a64e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA64E 5544 bytes
SHA-256: ea2f61c33bcac1fb19b56c32586003829eb216f9a525cf2a878b2e1078f3be3e
font_01_sfnt_off0000b91c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB91C 11476 bytes
SHA-256: 28eb57fe2bc69c1a466383e8b5b28cac4329124f8640d6ea1773bd0deb8fc447

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