Malicious PDF — malware analysis report

Static analysis result for SHA-256 3469bea55349016b…

MALICIOUS

PDF

45.8 KB Created: 2020-08-07 20:32:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7bba4c976e307f13d21d5450fa74372d SHA-1: 3ea320c647745109b31d0853614a8731bd936dec SHA-256: 3469bea55349016bf896402fb696f895e7485004f08770fcef581c8e648105a2
194 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the text 'Imunisasi bias pdf' and the malicious URL, suggesting a lure to trick users into clicking the link. The presence of numerous links indicates a potential SEO poisoning or link farm tactic to distribute malicious content.

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/pify?keyword=imunisasi+bias+pdf In PDF document text
    • http://files.victoriaprather.com/uploads/1/3/2/7/132740214/4841948.pdfIn PDF document text
    • http://files.ubcstephenministry.com/uploads/1/3/2/6/132695663/4dc38ce85fb.pdfIn PDF document text
    • http://files.stantonacademy.com/uploads/1/3/2/6/132681949/4784992.pdfIn PDF document text
    • http://files.fortykes.net/uploads/1/3/1/6/131606984/bilutumuz_tasevapijilem.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/1/0430/7599/3764/files/16599401929.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6753/0655/files/nivefolidarafeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9208/9759/files/chuyn_i_file_hnh_nh_sang_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8015/4269/files/70059796579.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6338/4991/files/95003723490.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7873/7310/files/43117259374.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7577/1304/files/63252614205.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7043/0115/files/javascript_game_code.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9156/6493/files/bugirotad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3191/9765/files/31626516013.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8852/7013/files/75224329929.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4504/4892/files/zonejopeliwukepi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4291/3955/files/54126938325.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_off00007667.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7667 5136 bytes
SHA-256: a1eced44bd55507314aca21401f5c795ef5617ed7a92521ab00f3b96ed8efdb8
font_01_sfnt_off000087c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87C7 10352 bytes
SHA-256: e0e23a74267caccf7919ea748976d74cc9884f74210399112333feda28ba365d

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