Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e3438b2404e4ae9…

MALICIOUS

PDF

49.6 KB Created: 2020-08-09 00:58:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e238250074addde732cbac98c2ac05ad SHA-1: 2b93c7c54e8675d9626b246f31571ac0defe113e SHA-256: 4e3438b2404e4ae963947bb0dec3844015614e2c56121402fe7540c31ae33bf0
202 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, which is designed to lure users into clicking through to potentially harmful content. The document body, though heavily obfuscated, contains text related to interview questions and a download call-to-action, suggesting a social engineering pretext. The presence of a link farm further indicates an attempt to distribute malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=aix+interview+questions+and+answers+for+experienced+pdf In PDF document text
    • http://files.jasonmarshallconsulting.com/uploads/1/3/2/6/132681378/2772014.pdfIn PDF document text
    • http://files.eonmusic.co.uk/uploads/1/3/1/3/131398406/gawawefumivise.pdfIn PDF document text
    • http://files.whimsymahjongg.com/uploads/1/3/1/1/131164024/ruzodaledo-rekugewe-lafebakofax-sidurokezuk.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/1/0428/8679/1334/files/balasaheb_shinde_english_grammar_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5395/6766/files/lupoxugimufulavelek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7354/4093/files/zakaxir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3423/8362/files/zurefaguvikizagupuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1334/0312/files/kubutux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9947/2550/files/3789375606.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0134/7226/files/analogy_test_questions_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7062/7735/files/tratado_de_direito_penal_bitencourt_parte_especial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7111/8235/files/50855810323.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/9432/2855/files/maluzerunizoke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1020/3556/files/wisitepezeredakoru.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_off000080de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80DE 5452 bytes
SHA-256: 1878a7914e24630eb3f0a85b39af6538edfffddc789aadfe68520b9ba1022b1c
font_01_sfnt_off00009394.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9394 10944 bytes
SHA-256: e3bf6c36f44d681c3f0ec6233fc69e8c779d4ade066a3a7672896ac46f65b55c

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