Malicious PDF — malware analysis report

Static analysis result for SHA-256 6406360c13339679…

MALICIOUS

PDF

38.6 KB Created: 2020-08-26 16:49:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8de3a383c379d7f015b3b63803cb641b SHA-1: cc20d40f3c7ae1a70f03737f0a2568cd34f040ab SHA-256: 6406360c13339679a4f9d127850eb31da2d6b32c79a67a9d8e2980578c6d3579
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 known for hosting malicious content. The document body, though heavily obfuscated, contains URLs that are likely part of a link farm designed to trick users into downloading malicious files, such as the 'adobe audition 3.0 full crack' PDF. 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/pify?keyword=segundo+molar+superior+caracteristic In PDF document text
    • http://binalom.vinoetamicis.com/uploads/1/3/1/4/131406821/1425fc6c8d4.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/1/0464/2494/8888/files/link_adobe_audition_3._0_full_crack.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2937/2832/files/49323028040.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6459/7397/files/alabama_new_hire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6523/6895/files/certificate_of_appreciation_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5715/1142/files/95946276261.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8564/4447/files/luromizofidijuxaxozef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5875/5749/files/role_of_national_interest_in_foreign_policy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9862/0569/files/dubabuxuwobefe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0369/0660/files/fundamentals_of_computer_graphics_3rd_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7437/9157/files/developing_the_leader_within_you_wor.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_off00005894.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5894 5496 bytes
SHA-256: 5c9c74b2a8fd96fef34d2a80b636fbc85f0244a57afec9fc26e3eb0df40e4255
font_01_sfnt_off00006b24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B24 10292 bytes
SHA-256: 0d9dedde47b3561e19eb77836fd4ec1a6b75d55f4dcb3c1b8f848c98ad661b81

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