Malicious PDF — malware analysis report

Static analysis result for SHA-256 738b200cacf60e13…

MALICIOUS

PDF

43.9 KB Created: 2020-08-19 14:33:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 900cbd0485acc910d8ec084acbd4e08f SHA-1: 7ae49284278ab925018b2b8c9bca9c89859cf89e SHA-256: 738b200cacf60e135e78417140a997f83f4179cd28a08fbae86bd31b628bc5cd
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service. The document body, though heavily obfuscated, contains a URL that is also present in the heuristics as a malicious redirector. This suggests the document is designed to trick users into visiting malicious sites, likely for phishing or malware distribution.

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.ru/pify?keyword=un+sustainable+development+goals+progress+report In PDF document text
    • http://files.skyvusolutions.com/uploads/1/3/2/6/132695493/8cf7e392e.pdfIn PDF document text
    • http://files.colganscattle.com/uploads/1/3/0/7/130775518/zujilu.pdfIn PDF document text
    • http://files.democratsagainstunagenda21.com/uploads/1/3/1/3/131383483/vifuba.pdfIn PDF document text
    • http://files.alenaephotography.com/uploads/1/3/0/8/130813042/xatijej.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/1/0434/2402/2677/files/tidijinolapo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4892/6364/files/301_1_4_hard_stainless_steel_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6690/8054/files/78469170247.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nulifagavukaxubodipiripu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7417/4622/files/wunatilufa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3789/2509/files/18270618854.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/20880330559.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4242/1398/files/gotagisatujasofufu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4162/8053/files/popuxuteliwitukox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8259/6008/files/78651097706.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1725/4558/files/after_we_collided_free_wordpress.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_off00006cd0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CD0 5472 bytes
SHA-256: aecc14809c842e3ba7042b899c0d658c7f03ec1ff363fd25f72ddd4d82a8be65
font_01_sfnt_off00007f4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F4A 10432 bytes
SHA-256: 8ae186331523f782537a632fe8995d304360e22b09e21930d39dbc3a8d0b3175

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