Malicious PDF — malware analysis report

Static analysis result for SHA-256 321b007b4b4aacca…

MALICIOUS

PDF

43.0 KB Created: 2020-08-08 20:55:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 03bcb97d75acacc97a6bb5d4eaaa458b SHA-1: 6f2d9fed1cfc1ed0830f1fec07b64fa1ada82e1f SHA-256: 321b007b4b4aaccaedb8962c057716250301f5f3f1792927d0124bd7b259a2ad
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was flagged as malicious by multiple heuristics, including a critical finding for a redirector link to traff.com. The document body contains numerous embedded URLs, indicating a link farm strategy. The primary malicious IOC is the redirector URL, which likely leads to a phishing or malware distribution site.

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=afman+23+220+pdf In PDF document text
    • http://files.jacintaviolin.com/uploads/1/3/2/6/132683014/gemimizejalesi.pdfIn PDF document text
    • http://files.weldcountymeatgoats.com/uploads/1/3/0/7/130775652/8b18eb42e7.pdfIn PDF document text
    • http://files.techtrekfriend.com/uploads/1/3/2/6/132695568/nivexuwebasigu.pdfIn PDF document text
    • http://files.artsmindfulmedium.com/uploads/1/3/1/4/131482886/xiluruneriwonedetom.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6305/0394/files/45006063799.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6274/7545/files/62560169237.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7714/8571/files/tuxerugomexolomoragal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3707/3314/files/creative_writing_topics_for_grade_8.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7063/6710/files/60989353469.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9645/7884/files/16049031626.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8499/7025/files/35568069409.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5061/4429/files/6099975492.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9440/8354/files/waiting_for_the_barbarians_novel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3609/0267/files/jitasitepakegakomusaro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1390/6327/files/79209846500.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/5578033559.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/17673355306.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/1297022614.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_off00005f0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F0E 4740 bytes
SHA-256: 013f9b822dcd6b621e446f6a05b2540695822e593b4ebf72aeca97832f96c8d7
font_01_sfnt_off00006ef2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EF2 9968 bytes
SHA-256: a8f3f8d067b4c21169ee9636b0e4e1e1c518b4d3ec6948fb7c1d55c1eb92fae6
font_02_sfnt_off0000911d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x911D 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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