Malicious PDF — malware analysis report

Static analysis result for SHA-256 7add665b2eb981ce…

MALICIOUS

PDF

56.9 KB Created: 2020-08-19 09:17:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8cdc2448a654c39f6c1585f30f81e2c3 SHA-1: 25ff4f28550c0491dfbc774902467fba0400b17f SHA-256: 7add665b2eb981cead8158812a4f8c96c11c7fbb676bb5be0c2851d4b445a506
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, suggesting an attempt to drive traffic to malicious sites. The embedded document body contains a URL that points to a redirector, which in turn links to other PDFs, likely as part of a phishing or malware distribution scheme. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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=cowboy+bebop+tank+opening In PDF document text
    • http://fonaj.jessicaslaymakerart.com/uploads/1/3/0/8/130874276/poxotojijutadilawim.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/1/0430/9814/4932/files/bubazere.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1218/5494/files/jixopixed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7574/7484/files/year_5_spelling_activities.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6303/3502/files/8029206771.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/rodupenewizaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2891/4087/files/46782040464.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5906/1670/files/85924261793.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3024/8600/files/6th_grade_math_problems_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1342/9655/files/cedula_rfc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1298/8821/files/7950393062.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5173/5448/files/xolonirakita.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 4

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_off00008a16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A16 7340 bytes
SHA-256: eb5ceb21837bfacc70339c22b9df3a4aad7b2bbd03b7fb56ea7454ccba88b737
font_01_sfnt_off0000a2b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA2B9 4984 bytes
SHA-256: 690e7e827d59361ed1af421e082708f24c8dc689dacd58496b2aadce387cd654
font_02_sfnt_off0000b3e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB3E2 10192 bytes
SHA-256: 9045362476c6dd15141a5c37fdc640567460592ee8707f7c40296555c9158bfd

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