Malicious PDF — malware analysis report

Static analysis result for SHA-256 29eda42e868c1663…

MALICIOUS

PDF

76.6 KB Created: 2020-08-12 14:45:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c7e3c773602915a89d47427592a99158 SHA-1: 31f315be8e03e4d87135fd8e9f5582083559c0ff SHA-256: 29eda42e868c16639c583c1c49341074e8eae73c9e9a8a1c2f26ab83b2a53854
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=biblia+de+estudio+thompson+pdf+en+espa%25C3%25B1ol'. The document body, though heavily obfuscated, contains text related to a 'Biblia de estudio thompson pdf en español', suggesting a lure to disguise the malicious intent. The ML classifier also strongly flagged this PDF as malicious. The primary attack pattern involves redirecting 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.ru/pify?keyword=biblia+de+estudio+thompson+pdf+en+espa%25C3%25B1ol In PDF document text
    • http://files.dst-transport.com/uploads/1/3/0/7/130775221/af81edb4d.pdfIn PDF document text
    • http://sixuzara.bodyglow.co.nz/uploads/1/3/0/8/130874493/30cdafd91e.pdfIn PDF document text
    • http://denisukuv.shooplr.com/uploads/1/3/1/3/131383314/mipobatol_pijike.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/1/0433/0687/7080/files/toraladomokipina.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0079/9140/files/ligota.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3278/8648/files/boveda_espiritual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8140/8420/files/sofiranukexik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7121/8588/files/77913515892.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3706/3328/files/financial_markets_and_institutions_11th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3133/6859/files/bilangan_bulat_dan_pecahan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8401/2956/files/34975226464.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pujofupokutesigitugut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8379/1526/files/22626759853.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5548/9948/files/boraxepisokovusa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4746/1788/files/poseidon_family_tree.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b090.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB090 6744 bytes
SHA-256: 127b44c9f93874c96d25eb7ddc4688780d8877ce931cf296363fb5748d8d514b
font_01_sfnt_off0000c177.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC177 5588 bytes
SHA-256: 4f584c1aa9525f4a4821b99f7f3855181e0ee96bacf3348dd21520ef6a8d09e9
font_02_sfnt_off0000d400.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD400 3288 bytes
SHA-256: 3ba3e500a0b30829319870a8b555481304b188e71bb2b6b4334752b790d86c2f
font_03_sfnt_off0000e173.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE173 12604 bytes
SHA-256: bd81a9896bf7b4754e639fdff78e7cfd6cb5ce357bd7e3993b0595d480d2f8aa
font_04_sfnt_off000109e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109E6 16772 bytes
SHA-256: c7adf7d8cfe5b6312b454fcd0fd59240d00dfe62ea3e51b4c333d5f94a957324

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