Malicious PDF — malware analysis report

Static analysis result for SHA-256 a17b9b0620a02fe9…

MALICIOUS

PDF

65.7 KB Created: 2020-08-16 21:25:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 861094827b503226e704410c8e3114f2 SHA-1: bd639f3ef6712e9911c08a97040247b81ea69d66 SHA-256: a17b9b0620a02fe945c2ff2bfaacf6601891869e8e842dae61ae6836b8a0887c
202 Risk Score

Malware Insights

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

The PDF contains a prominent link that redirects to a malicious URL, disguised as a 'Lucknow university b tech form'. This indicates a phishing or social engineering attack aimed at tricking users into visiting malicious infrastructure. The presence of a visual download button further supports a lure-based attack. The PDF also contains a link farm, suggesting an attempt to manipulate search engine results or distribute content widely.

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=lucknow+university+b+tech+form In PDF document text
    • http://sonide.cameronhorn.com/uploads/1/3/2/7/132710712/lemalorigoz.pdfIn PDF document text
    • http://files.reclaimingpeasant.net/uploads/1/3/1/3/131398350/cf62805.pdfIn PDF document text
    • http://wujawu.casadegrode.com/uploads/1/3/1/4/131407552/6c10a6ffe3cc6.pdfIn PDF document text
    • http://sovagaxip.lifestylejewellery.com/uploads/1/3/0/8/130874038/a32ef75aeac.pdfIn PDF document text
    • http://famikotul.kateloganbeauty.com/uploads/1/3/1/4/131438800/44d28d2c21d625.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/1/0436/9956/8795/files/bilingual_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4464/2715/files/sufekagoditosonilaze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4245/6231/files/movitaxuwozited.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9702/2871/files/95833207339.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7927/0549/files/89920543108.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0660/7012/files/loxavotekizitujo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0799/1208/files/origins_a_short_etymological_dictionary_of_modern_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0464/8859/files/mupafanitiwosawukifa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3690/1527/files/22805824511.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a25d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA25D 5276 bytes
SHA-256: 7ad0492dcce83057d0c40e4d00c46d989b44fa2df4814d542945bfc90598e839
font_01_sfnt_off0000b44b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB44B 15560 bytes
SHA-256: 4dddd92d6dcafb20c911e9da3162c3f7a63327deaf37d4906d822b48fc6ff1ba
font_02_sfnt_off0000e4b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4B1 16164 bytes
SHA-256: ead7fd593d7f5feef6f283420e9b55f8fa4552f107c64b0063d474dd3355abd8