Malicious PDF — malware analysis report

Static analysis result for SHA-256 819fb42874ed69c6…

MALICIOUS

PDF

83.5 KB Created: 2020-08-18 20:01:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 54cc6045d322f1a31183f387972b08a3 SHA-1: 6785fb44dda9ff708b57fa0ed1759fdad822b6bc SHA-256: 819fb42874ed69c618ea52f3fb4fd1af44c197ab32e77a2b3eff6e000b313438
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 a phishing or scam attempt. The primary redirector URL is `https://ttraff.com/pify?keyword=jubilee+industries+holdings+ltd+annual+report`, which is designed to obscure the final destination. The document body, though heavily obfuscated, contains references to an annual report and the malicious URL, reinforcing the lure.

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=jubilee+industries+holdings+ltd+annual+report In PDF document text
    • http://darexaw.kelseyroserocks.com/uploads/1/3/1/3/131380429/25c11003.pdfIn PDF document text
    • http://nafevi.dia-healthcare.com/uploads/1/3/0/8/130813834/nukoxatuxival-bobetise.pdfIn PDF document text
    • http://files.shodacars.com/uploads/1/3/0/8/130813616/1557f.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/1/0431/3199/4280/files/tixunozesapifad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5621/7750/files/savesajuva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tazoxusejeko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6332/0469/files/28298011584.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kenetawibonilolususede.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/25696514874.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6761/3087/files/cancionero_liturgico_nacional_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/4166/4669/files/vyond_character_creator.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5977/1557/files/wazulirinazex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0664/7717/files/broiler_management_handbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3784/3871/files/adiemus_songs_of_sanctuary.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e6a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6A7 7320 bytes
SHA-256: 122c0ec1b742a9a77437d9e813f92f1aec6288ff8e65f20a9f77406c035ce05d
font_01_sfnt_off0000ff7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF7B 5348 bytes
SHA-256: b3acd9a8bf24e8018582d25825670da0ecae94d527dcf32e7ff468ef4e68277a
font_02_sfnt_off0001118b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1118B 15068 bytes
SHA-256: f3e5bab8e558659145fc1af05a02f1d61f5e562013c7e7fa25e1a2f1babc5a1c

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