Malicious PDF — malware analysis report

Static analysis result for SHA-256 3bfe67fb3a3649f3…

MALICIOUS

PDF

160.1 KB Created: 2020-08-06 06:47:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d3ff12b3c508c9277110a5cd52a7d96f SHA-1: b61ae3fac66ed4500b007a35a0b773d441388ab5 SHA-256: 3bfe67fb3a3649f3cddbe5c2e34a70b5b5a8ea28f761dcdff49fb8cd1d1b0819
134 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=benazir+bhutto+book+pdf'. The document body, though heavily obfuscated, contains this URL, suggesting the primary intent is to redirect the user to malicious infrastructure. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • 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.
  • 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=benazir+bhutto+book+pdf In PDF document text
    • http://files.bombedoutchurch.com/uploads/1/3/1/1/131163854/zekokiduxo_kibebubozaris_dujixixo_guvedipetefep.pdfIn PDF document text
    • http://files.nataliewetzelgallery.com/uploads/1/3/0/7/130739288/8935169.pdfIn PDF document text
    • http://files.hedgerow-herbals.com/uploads/1/3/0/9/130969422/genoxikilatikavisuv.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/1/0428/0185/6668/files/r_repeated_measures_anova.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7954/1671/files/xogudububaseniwanav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8085/1364/files/setutesojojove.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8716/7637/files/belle_s_library.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7773/0464/files/22525376797.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1678/0956/files/assam_tribune_calendar_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3493/4429/files/77978529230.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6083/0116/files/pdf_to_word_converter_free_download_for_windows_7_ultimate.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6539/0757/files/2460817580.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7997/5590/files/89491397329.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5459/5224/files/amount_of_casein_in_milk_project.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7741/0720/files/98378857740.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 5

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_off00021f84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x21F84 5220 bytes
SHA-256: 414c72ab19d5765a0ab0fe10ee26f78f2814eea80a93796c210f1a7a3dd69213
font_01_sfnt_off00023146.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x23146 11552 bytes
SHA-256: 642dceb635a25240020406d5e670b8810f94bd41c46aedc5b90f34fddfe295c6
font_02_sfnt_off000258c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x258C7 17604 bytes
SHA-256: f498f80849e9fd5ec0c10fee51687ead23a650ab6de0fff0ca858769c4bb5904

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