Malicious PDF — malware analysis report

Static analysis result for SHA-256 798b2dcea43607e2…

MALICIOUS

PDF

41.1 KB Created: 2020-08-22 11:03:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ea7c99843c057ca1d69a7e41f242d6b9 SHA-1: c20c6ee916620a6a1c2f387bcda961cf48e20f48 SHA-256: 798b2dcea43607e21591401721e556ba6d3d35f9b8a7bffcb444e130f6522473
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains numerous links designed to appear as downloads for media content, but they redirect to a malicious SEO link farm. The primary redirector URL is https://ttraff.ru/pify?keyword=bhojpuri+dj+video+song++hd, which is flagged as malicious. The document's structure and the presence of many external links suggest an attempt to drive traffic to malicious infrastructure, likely for phishing or malware distribution.

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=bhojpuri+dj+video+song++hd In PDF document text
    • http://tobofug.iemministries.net/uploads/1/3/0/7/130775291/b2f74d0df438e3.pdfIn PDF document text
    • http://files.shavanocreek.com/uploads/1/3/1/6/131606395/1042335.pdfIn PDF document text
    • http://xafajol.isabelsherk.com/uploads/1/3/1/3/131379730/7126304.pdfIn PDF document text
    • http://fubivare.skateteamindy.com/uploads/1/3/2/3/132303093/f6d1d9cb9afd4be.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/1/0438/2670/8640/files/bombastic_brothers_mod_apk_free_shopping.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7433/8472/files/furatuxizomepow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bugos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4736/2453/files/wwe_raw_finn_balor_song.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/17721531589.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2374/4674/files/84511270807.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6486/0575/files/36363164844.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7900/7398/files/terjemahan_surah_al_waqiah.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/9227/5353/files/dilovariwinukipa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3929/2577/files/39373089994.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0250/2054/files/hash_table_implementation_in_c.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0052/8033/files/dimemokekinanavefuvoxiw.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000564c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x564C 4968 bytes
SHA-256: 63a52904d83929ec3ccc9580c2eeafcb7cd1e2467d22c8107c3e3c5e6ad238fd
font_01_sfnt_off0000672b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x672B 10084 bytes
SHA-256: 6e62aa48b8f8e4d08f5f1219de44b14cff861e5c6455c25a6e8b1a3588e99e82
font_02_sfnt_off000089ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89AC 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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