Malicious PDF — malware analysis report

Static analysis result for SHA-256 ef7d29d5cde92251…

MALICIOUS

PDF

45.3 KB Created: 2020-08-21 10:37:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 830af9cb28d6e6aa9559535cd24184df SHA-1: f594eb9544eedc6d7124c90cbdc3741e36011cba SHA-256: ef7d29d5cde92251cc09e5395e7207648375028287a6bc51041114fc42b0d83c
194 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.cc, which is disguised with a keyword related to 'Naval games for android'. The document body also contains this keyword and the malicious URL, suggesting a social engineering lure. The presence of a large number of external PDF links further indicates a link farm or redirection strategy. No scripts were extracted, but the primary attack vector appears to be directing 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.cc/pify?keyword=naval+games+for+android In PDF document text
    • http://files.aztrinitymusicacademy.com/uploads/1/3/0/8/130814516/liludutixi.pdfIn PDF document text
    • http://dilis.mycusina.com/uploads/1/3/0/9/130969431/52ca88.pdfIn PDF document text
    • http://files.nourishabley.com/uploads/1/3/0/7/130739789/kajumotetase.pdfIn PDF document text
    • http://files.snohomishminigolf.com/uploads/1/3/0/7/130775837/1857974.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7980/2782/files/65280683001.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6074/8695/files/gambar_animasi_lucu_kartun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5502/2234/files/notas_de_acordeon_de_teclas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2960/0155/files/pose_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9660/4825/files/johnny_rebel_some_niggers_never_die.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2741/2645/files/zesazidirifawijife.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3475/4728/files/91648443110.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2558/7610/files/ap_scert_text_books_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4030/1478/files/60048066938.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3675/3570/files/97784100680.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6083/0116/files/revorikeludebo.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006690.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6690 4964 bytes
SHA-256: 705c2f891c4fcdfb918f4fd554d156c9fd5b8a0753a550e3009dddab0fa8e363
font_01_sfnt_off00007760.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7760 10260 bytes
SHA-256: 1e309860a1e8f6b80f822d97cbb805e179372d3874cdbe458331b89f8d9a70a8
font_02_sfnt_off00009a88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A88 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71

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