Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3566c25b1894f00…

MALICIOUS

PDF

70.9 KB Created: 2020-08-17 16:46:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5ea0ef9752988648fa2236e6fec6e954 SHA-1: 72ec85ebf2f3c57060ba82ab763a72011b20af19 SHA-256: c3566c25b1894f00b04d54d21c70ff8b4b79bcfc4165f0a1925e435edd9465cf
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a significant number of embedded links, identified as a 'PDF SEO Link Farm'. One of these links, 'https://ttraff.ru/pify?keyword=d%2526+d+5e+wizard+level+up+guide', is flagged as a malicious redirector. This suggests the document's primary purpose is to redirect users to malicious infrastructure, likely for phishing or malware distribution.

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.ru/pify?keyword=d%2526+d+5e+wizard+level+up+guide In PDF document text
    • http://files.troutbum.ca/uploads/1/3/2/7/132710655/046c6686a.pdfIn PDF document text
    • http://files.chloebyg.com/uploads/1/3/2/6/132681199/kejix_magimisufeb_buviluw.pdfIn PDF document text
    • http://negase.poetryandpower.org/uploads/1/3/0/8/130874038/keveted-lejipibu-kanuzeru-loxaxotujit.pdfIn PDF document text
    • http://files.pinstripedzine.com/uploads/1/3/0/9/130969332/a710d.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/1/0431/0715/6128/files/jebotinoxenotekikev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3993/1033/files/mitodilakatowu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4272/5275/files/duvimuferufisokal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7077/4677/files/90161184092.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7948/9950/files/dosis_antasida_sirup_anak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1179/2286/files/popebajutak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9373/7118/files/passport_renewal_ds_82.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6735/9900/files/75850498658.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1946/7932/files/82867302852.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_off0000da97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA97 4156 bytes
SHA-256: a3981bb475cc2143a1b59c8dfce73a49efc35ef5c21f75579f29bf6c691813b6
font_01_sfnt_off0000e8c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8C4 11744 bytes
SHA-256: 2ff4caf86ebb1852df7265e798b377bf34338e4412ab147509bef17df3b9e32a