Malicious PDF — malware analysis report

Static analysis result for SHA-256 08907d24a4bacd2c…

MALICIOUS

PDF

41.8 KB Created: 2020-08-19 21:19:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 357ecb992ac428c0b4ecbb2ecd79801d SHA-1: 330014dfe0b78265d6bfed7adaa78eed124bb5c6 SHA-256: 08907d24a4bacd2cf0d6e30edbdc73148eb3cea182accfed1c48ba05e23811c5
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple embedded links, with a critical heuristic firing indicating a redirector to malicious infrastructure. The document body, though obfuscated, contains a URL that appears to be a lure for a 'Cisco 6500 bgp configuration guide'. This suggests a phishing or scam attempt to redirect users to a malicious site for further exploitation.

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.com/pify?keyword=cisco+6500+bgp+configuration+guide In PDF document text
    • http://pegex.calhounmiddleschoolband.com/uploads/1/3/1/3/131379685/nefilesitibu.pdfIn PDF document text
    • http://jutadup.ctumber.com/uploads/1/3/0/7/130775403/ronibezog-wefag-dogiwomopuraga.pdfIn PDF document text
    • http://lineji.cashforgoldwc.com/uploads/1/3/0/8/130813848/8461098.pdfIn PDF document text
    • http://nikobewa.spartanswolvesfc.com/uploads/1/3/0/8/130873995/zawujolodopu.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/1/0437/9531/6896/files/ncert_books_for_class_11_maths_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4202/8182/files/51172278853.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6828/3287/files/tahm_kench_voice_lines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3708/2271/files/25819511260.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2611/0885/files/uvi_aquaponics_system.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1081/7180/files/understandable_statistics_12th_edition_answer_key.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/8601/5640/files/chemistry_notes_bgcse.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5904/3749/files/xutebemanowawilob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/99231100330.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 1

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005dfa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DFA 5756 bytes
SHA-256: 5dd3aae8ee9d2895410e23825d2f7ae75a3e8b14454780e36e895f7e8ce66538
font_01_sfnt_off0000718e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x718E 12860 bytes
SHA-256: 29bffc0b6d75e500b579a2d839dac7dc5adac620cb228a7d9c2370b91922fdfd

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