Malicious PDF — malware analysis report

Static analysis result for SHA-256 dae68a78a450dd93…

MALICIOUS

PDF

42.4 KB Created: 2020-08-16 21:49:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ad310e77061716c6919cf940aedd35be SHA-1: c99e4314c63fac86c3e8c701d7431571225cde1d SHA-256: dae68a78a450dd931b3a2142662b2166b663e45e407a4980981762571fea6565
194 Risk Score

Malware Insights

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

This PDF file contains a link farm designed to redirect users to malicious content, specifically identified by the heuristic PDF_MALICIOUS_REDIRECTOR_LINK. The primary malicious URL is https://ttraff.cc/pify?keyword=chicago+manual+of+style+format+sample+paper. The document body, though heavily obfuscated, contains this URL and other links, suggesting a lure to a phishing or malware distribution site. The ML classifier also strongly indicated maliciousness.

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.cc/pify?keyword=chicago+manual+of+style+format+sample+paper In PDF document text
    • http://files.henkpeetersarchive.info/uploads/1/3/1/3/131380889/fevirabevijozeke.pdfIn PDF document text
    • http://files.fancyfootworkreflexology.com/uploads/1/3/1/4/131455463/5719629.pdfIn PDF document text
    • http://tiroje.disruptivenewyork.com/uploads/1/3/1/4/131483492/pemubovosuv_sanab.pdfIn PDF document text
    • http://gotujir.powerbusinesscrm.com/uploads/1/3/1/6/131636655/danuselakazokesa.pdfIn PDF document text
    • http://files.cancermessedwiththewrongfamily.com/uploads/1/3/1/1/131164202/7fee43.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/1/0429/5943/7975/files/92384689784.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6254/9910/files/vunatijeza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3729/4754/files/jofirijeze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0070/9791/files/fundamentals_of_aerodynamics_john_d_anderson.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6694/9786/files/11797640137.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0549/2904/files/28201034921.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8279/2612/files/banking_awareness_study_iq_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8558/6849/files/lizej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8030/3270/files/curso_economia_basica.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8402/1921/files/44811095863.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2667/7913/files/13734305837.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2792/2076/files/62139377794.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 8

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_off00006821.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6821 5436 bytes
SHA-256: e48dc1b0b163190c2ca6ca7b61bb399ecb60374306a72339b8002d0305c9ce88
font_01_sfnt_off00007a80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A80 9832 bytes
SHA-256: 259a4b8727e0e4ea919c45dac230968f119941a1dc116534bf729121c866c6bb

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