Malicious PDF — malware analysis report

Static analysis result for SHA-256 23d3e3a529be28f3…

MALICIOUS

PDF

59.9 KB Created: 2020-07-28 09:34:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: afbcd253f08774b005fa7199975005a1 SHA-1: 207ff1d0b5a24869c0cf9749ff90b19917b57955 SHA-256: 23d3e3a529be28f3a9058237b159c538be97fba9162b5cecd8c0212b3b50c073
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=athlean-+x+workout+pdf'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on Shopify. The ML classifier also strongly flagged this PDF as malicious. The document body, though heavily corrupted, suggests a lure related to 'Athlean-x workout pdf'. The primary attack pattern involves redirecting the user to malicious infrastructure.

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=athlean-+x+workout+pdf In PDF document text
    • http://files.ringforthebutler.com/uploads/1/3/0/7/130776152/fcba1066.pdfIn PDF document text
    • http://files.therobertabadydogfoodcoltd.com/uploads/1/3/1/3/131380495/e2dadbe.pdfIn PDF document text
    • http://files.ontariomotorcyclelaw.com/uploads/1/3/1/3/131383743/keroge_rogemotowab_mamibaduwit_dusuziwuvalidi.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/1/0431/7829/5450/files/41397276444.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/55079075607.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4417/5013/files/293948542.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0379/5865/files/33195982986.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3482/1287/files/zegivexutu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2642/1672/files/nolipekawotaranufibir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/81159011373.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9951/2231/files/sunovavulidukoxopirowu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1490/6275/files/98256623172.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0328/1571/files/31410283250.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1352/8987/files/mukadakoraroku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1886/0190/files/97406473743.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5307/8933/files/77934679692.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 5

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_off0000ae65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAE65 5028 bytes
SHA-256: 7aa9d065d3c12d392d34a2f55b854826e52245817da722514f4d7e9fa8a8bd86
font_01_sfnt_off0000bf93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF93 10188 bytes
SHA-256: da532ffd69e7e5640ebbe58d779eb2a3ca6a4b216db550a5bccfda6dcd56cada

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