Malicious PDF — malware analysis report

Static analysis result for SHA-256 057ea525fb4a907e…

MALICIOUS

PDF

39.4 KB Created: 2020-08-01 11:12:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 733b24d43ed4a6b8b1480ad38ac24154 SHA-1: 3734f6138f2ea02447c29cbd48dae2101811ac2b SHA-256: 057ea525fb4a907eddf99d5608a28169f7bcb6051e8698635e974c561cdffd4a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector URL (ttraff.com). This indicates the document is designed to redirect users to potentially harmful content. The presence of numerous external PDF links further suggests a link farm or SEO manipulation tactic to obscure the malicious intent. The ML classifier strongly supports the malicious nature of this PDF.

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=occupational+outlook+handbook+2016+17 In PDF document text
    • http://files.hdihidupsehatkaya.com/uploads/1/3/1/8/131856907/nuwod-jaterurup-duzalivar.pdfIn PDF document text
    • http://files.justallgoodthings.com/uploads/1/3/1/4/131406797/busad_duwumabujer_mixodedoted_motomip.pdfIn PDF document text
    • http://files.janinemillerdelany.com/uploads/1/3/0/9/130969278/6755478.pdfIn PDF document text
    • http://files.cjhookah.com/uploads/1/3/1/4/131413718/zobujozaxuzukazutepu.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/1/0429/3964/6108/files/xegelapibetefewi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2270/2999/files/nevemi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7818/9205/files/76028616902.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7217/6796/files/xiwogajuxopipoli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9156/6493/files/43688141357.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5012/9813/files/41066831627.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0903/7720/files/cx-_10c_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7207/7475/files/famakuxulazebamo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3449/9489/files/6523375291.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wefudebavisizaku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2259/7800/files/wegadojejekurobezeza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7922/0891/files/70700899829.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 6

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_off00005a7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A7D 5676 bytes
SHA-256: e33970951adfec50d4d3361fee27274c13b13d5c2860141c87665d57f042d71e
font_01_sfnt_off00006dc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DC8 10228 bytes
SHA-256: 0c4a3177c175dbbd86200028da039cc2fcd38614b5f38bcc84b0d22cba0be009

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