Malicious PDF — malware analysis report

Static analysis result for SHA-256 d53c95701e8b0ffe…

MALICIOUS

PDF

45.7 KB Created: 2020-07-30 13:59:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0757156454aa7750ddd2c31ccaad8659 SHA-1: b459bbd52914cc4061d1a15e20244ac96c167081 SHA-256: d53c95701e8b0ffe539cd16b2044ed3c246e24a96d18cc85cacbe10a32f5020a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of external links, many pointing to domains associated with link farms and redirectors. The primary malicious URL identified is ttraff.com, which is flagged as a malicious redirector. The ML classifier also strongly indicated maliciousness. The document body is heavily obfuscated and appears to be largely junk data, suggesting the primary function is to host the malicious links.

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=anatomy+of+foot+pdf In PDF document text
    • http://files.parisglam.com/uploads/1/3/2/6/132681698/e51268cc986f.pdfIn PDF document text
    • http://files.lansdownecommunityleague.com/uploads/1/3/1/6/131606092/rigudotisekiferojofi.pdfIn PDF document text
    • http://files.retrovideogamez.com/uploads/1/3/0/7/130739922/2fa2a32f8fee.pdfIn PDF document text
    • http://files.paveopenlab.com/uploads/1/3/1/0/131070294/fofonupoxedena-jurebegaluruwud.pdfIn PDF document text
    • http://files.lucillekim.com/uploads/1/3/1/3/131380870/5047e97072.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/1/0434/3365/6476/files/47701076594.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0838/5439/files/ximukisokujo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0800/0163/files/ladoganari.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8273/5006/files/32942897718.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1514/3587/files/mawurutikusa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6706/4991/files/86658132262.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2277/6480/files/74336738123.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3406/6594/files/tixosixar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4933/7507/files/gefadebitira.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0012/6880/files/3423929472.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9988/9569/files/70443210606.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5843/8039/files/70444996432.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6346/7414/files/pajusujubovane.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3144/4128/files/xogovozazixinefimijipe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nejoxalivivurotuzepebibus.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_off00007976.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7976 4596 bytes
SHA-256: 594a1c761b696b60e41ffe3edcd92b4e72857eae1cfa91587e41563ed9b9dc87
font_01_sfnt_off000088f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88F7 9480 bytes
SHA-256: e9f3f06e3ff622f501ab84bb6191a23d7781a95c87d604a4f2657ad6775e9abb