Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a74bd71c959b09a…

MALICIOUS

PDF

45.0 KB Created: 2020-08-23 17:08:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 199c88cbfa6c62072641c3554c90c4ca SHA-1: 53e5eb4f88c8960ba8174837d12da320f07f1910 SHA-256: 6a74bd71c959b09ab9cb6aa27bcef0e6522fda5291f4773c76d198ea4d69f616
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, with a critical heuristic identifying a redirector to 'ttraff.com' which is known malicious infrastructure. Another heuristic indicates a link farm designed for SEO, likely to disguise phishing or malware distribution. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is used for 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=germes+a%25C3%25A9robies+m%25C3%25A9sophiles+pdf In PDF document text
    • http://nemami.lilylarue.com/uploads/1/3/1/3/131383483/3a253e.pdfIn PDF document text
    • http://files.gemmiev.com/uploads/1/3/2/6/132681482/fumerexitit_watiwo_tibaniruwed_pawuful.pdfIn PDF document text
    • http://files.nathanpalmangus.com/uploads/1/3/1/4/131454304/sibineta.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/1/0433/6841/5400/files/cahier_des_charges_application_informatique.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1156/3932/files/what_does_acquiesce_mean_in_a_sentence.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3518/7605/files/65328276643.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4976/0406/files/5.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1496/3868/files/39770430269.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8582/4164/files/35890099843.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8217/6917/files/rockstar_lyrics_ringtone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4967/2091/files/matudabuvawikilal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6717/1223/files/jerefovakewemobosetikona.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gujogu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2150/8509/files/keturevukugari.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3839/9912/files/66635506671.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4800/8866/files/92918836170.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 3

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_off00006de2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DE2 5592 bytes
SHA-256: 449e5836b66725171b43b4d22aa1756a25df224017165918eef7805df73932d0
font_01_sfnt_off00008078.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8078 11764 bytes
SHA-256: 2263ca081e44ea64f18883b112427794b88504bfb2178d23d8f19b3afa0041c4

Open this report in the interactive analyzer, or submit your own file for analysis.