Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a76f32d5102e38d…

MALICIOUS

PDF

73.0 KB Created: 2020-08-06 19:52:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 363666523554629e4a341547dcaeea82 SHA-1: 056b1ed81d98fce72134dab37d2dd995a3a60ad3 SHA-256: 3a76f32d5102e38d4e93a6639a67dbd894edcca062f2705b38ba738ff8498f50
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one heuristic specifically identifying a link to known malicious redirector infrastructure at 'https://ttraff.ru/pify?keyword=anger+management+pdf+file'. Another heuristic indicates a PDF link farm, suggesting the document is designed to drive traffic to external sites. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is a lure for malicious content.

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=anger+management+pdf+file In PDF document text
    • http://files.agriculturalmuseumnb.com/uploads/1/3/0/8/130813510/6855062.pdfIn PDF document text
    • http://files.laurenstripling.net/uploads/1/3/0/8/130813489/megujaletobin.pdfIn PDF document text
    • http://jilaremid.marinelifeproductions.com/uploads/1/3/0/7/130775432/wuxesipuv-wakafolepawab-xarapoxevaxiwo-kabuguxaxatu.pdfIn PDF document text
    • http://namal.uglypixelicious.com/uploads/1/3/1/3/131398091/babobivewal.pdfIn PDF document text
    • http://files.thelittlebull.com/uploads/1/3/0/7/130738675/2be10.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/1/0434/7094/6456/files/8765051804.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0936/7454/files/44847411919.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2370/3969/files/18809588797.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0175/6323/files/jiluda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6019/1641/files/11804612137.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3273/1038/files/2315952685.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8562/6520/files/29716736512.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5085/0709/files/14822503812.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3609/0267/files/rofimapujemalugidulekokel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4116/8283/files/80616603998.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8126/1466/files/mobojine_for_pc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9000/9502/files/86451701196.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 4

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_off0000e046.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE046 5172 bytes
SHA-256: 476e681b6b49f41d203e4476806cac62a33cd4973304be2d7bf1b4f68f65885c
font_01_sfnt_off0000f1d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1D0 10908 bytes
SHA-256: e26db0ce2ddf5f46ee3add61eef10c4e02df9abe7cb16194e8552b69785e6007

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