Malicious PDF — malware analysis report

Static analysis result for SHA-256 5343b3931df0b19d…

MALICIOUS

PDF

52.7 KB Created: 2020-08-09 02:09:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 81e7e4664d3b1b1091ef2e2e050fe603 SHA-1: 317dcc456e974c7aa85ca646ddef24154070b8e7 SHA-256: 5343b3931df0b19ddc269164133900caea65a1db9708e0940fd3b9f5dba2fe94
194 Risk Score

Malware Insights

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

The PDF contains a link farm designed to appear as legitimate PDF downloads, but the primary link redirects to a known malicious redirector. This suggests a social engineering tactic to lure victims to malicious infrastructure. The document body contains obfuscated text and the URL `https://ttraff.com/pify?keyword=anesthesia+made+easy+pdf+download` is a clear indicator of a malicious redirector.

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=anesthesia+made+easy+pdf+download In PDF document text
    • http://files.andrewmartinsmith.com/uploads/1/3/0/7/130738918/wikadukajiv.pdfIn PDF document text
    • http://gigenok.ameliaformanphotographs.com/uploads/1/3/2/6/132695569/xosadotox_senizo.pdfIn PDF document text
    • http://files.jazzetc.org/uploads/1/3/0/7/130739746/tuzuluxidubeworugoja.pdfIn PDF document text
    • http://files.creekdebate.org/uploads/1/3/1/4/131483281/mujapidegexijer_nixirux_rapabesogez.pdfIn PDF document text
    • http://xinupelom.danburyonfire.com/uploads/1/3/0/7/130775219/somosilaw_mazixe_zupozunugadigeb_soxojelupob.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/1/0430/6819/4978/files/52826414442.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9832/5663/files/27202888447.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9499/0243/files/21510805500.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5004/1495/files/55283963628.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6866/8569/files/descargar_libro_de_cero_a_uno.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0982/6213/files/80543044885.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2729/1542/files/sufokefevalevokagagixuwu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/57148414383.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1455/3763/files/equal_employment_opportunity_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3770/4867/files/71522775722.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7709/9935/files/58430083455.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 6

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_off00009068.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9068 5368 bytes
SHA-256: accf9d753a9531b23721dba6d1c9e19e9d6ffb32a555f2c995db957eb0d35c06
font_01_sfnt_off0000a2a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA2A4 10416 bytes
SHA-256: 9fabed160ebb0caa4bff5055a37e96e6eae6823642ec57c48168c52b56922792

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