Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6ebb63722f40587…

MALICIOUS

PDF

55.4 KB Created: 2020-08-23 06:31:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ada33c8555dedb7018aae7a9ce51063d SHA-1: 6f5a246596a07f1e7952fcbad325a3773010888a SHA-256: e6ebb63722f4058709fbf888aa734d1180ed23183c8be05846894a1d9aaf3420
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF document is disguised as a manual for a Behringer mixer, but contains a critical heuristic firing for a malicious redirector link. This link, 'https://ttraff.ru/pify?keyword=behringer+xenyx+2442fx+manual+pdf', is designed to lead users to malicious infrastructure. The document also exhibits characteristics of a link farm, with numerous embedded URLs pointing to PDF files, suggesting a broader SEO poisoning or spamming campaign. No scripts were extracted from this sample.

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=behringer+xenyx+2442fx+manual+pdf In PDF document text
    • http://files.spiritpathstudio.com/uploads/1/3/1/4/131406068/7691905.pdfIn PDF document text
    • http://files.y4kc.org/uploads/1/3/2/6/132681891/mufenezilefat_wiwalajedolo_tedefesejukidif.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/1/0430/7124/2391/files/81192441493.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/viborovikumowenaben.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9292/6883/files/40335911220.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4141/4552/files/46080818435.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7913/1551/files/84979933565.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/4562/8578/files/39068086951.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3493/3408/files/bullet_bike_sound_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6376/9243/files/report_counterfeit_cigarettes_uk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8116/9051/files/25473439989.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009967.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9967 5716 bytes
SHA-256: 7331d3d021f9ae66a716cd921b602a01a531f6326ee4722fcc4941df212ff865
font_01_sfnt_off0000acc2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xACC2 10588 bytes
SHA-256: f9505bb2e8bf172388bc1f904ef333c4b3a023c40ae5452a56dbf0e380fca364

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