Malicious PDF — malware analysis report

Static analysis result for SHA-256 7bb793be10dec6c3…

MALICIOUS

PDF

43.3 KB Created: 2020-08-14 12:30:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0abccde555941fdd20191e01d6abe3a5 SHA-1: b090ec08c2102d5837696761a946c5fd88b69dff SHA-256: 7bb793be10dec6c347ae78d5d7e57a16071f2434c668085aa8035491df35de60
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links designed to create an SEO link farm, with a primary redirector URL pointing to malicious infrastructure. The document body, though heavily obfuscated, contains the same redirector URL and benign-looking PDF filenames, suggesting a phishing or scam attempt to lure users to download content from potentially compromised or malicious sources. The ML classifier strongly indicates maliciousness.

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.cc/wb?keyword=alain%20de%20botton%20the%20course%20of%20love%20pdf In PDF document text
    • http://files.grangevillegunclub.com/uploads/1/3/0/7/130740297/miduserorad.pdfIn PDF document text
    • http://gudude.robintidwell.com/uploads/1/3/1/6/131637562/3807804.pdfIn PDF document text
    • http://files.mrhso.org/uploads/1/3/1/3/131398323/1052dd3d0.pdfIn PDF document text
    • http://files.5degreespsychotherapy.com/uploads/1/3/2/7/132740413/9aebaa.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/1/0432/8790/4411/files/nepilojakesujojidonufil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5391/6053/files/xogepezi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xuxovozukirofavekejob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1752/7715/files/66114735987.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0709/0589/files/savizokewinar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8580/0358/files/zebagutinajovitologopi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2211/2152/files/fundamentals_of_computer_operating_system.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9494/1603/files/psi_tutorial_solutions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7713/9613/files/gungeon_yari_launcher.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2468/7014/files/76659456976.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3142/0319/files/divowamejuguvuxefu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7701/8524/files/67827309113.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8197/4435/files/discord_markdown_list.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006b49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B49 5432 bytes
SHA-256: 569418f20d3c5e70e4a8576391bfe58cd2eebebde1759bf3022f4781ac2dea93
font_01_sfnt_off00007db7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DB7 10156 bytes
SHA-256: 6c66d0652e65c5539be558700e57e438fbc4834f92d3fdc714442375739b4fad

Open this report in the interactive analyzer, or submit your own file for analysis.