Malicious PDF — malware analysis report

Static analysis result for SHA-256 2988febeacedd143…

MALICIOUS

PDF

45.2 KB Created: 2020-08-20 09:40:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cdb18f058b47d2f699de6a38905f71ff SHA-1: f180e05b56543b27776011065f69aeface8b2191 SHA-256: 2988febeacedd143bf905e660264d9da4f1b75fe33a5bf81c03ec5b94f877a53
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a mass of external links, including a critical link to a known malicious redirector at 'ttraff.cc'. The document body, though obfuscated, contains the text 'Debate templates for students' and the malicious URL, suggesting a lure to a phishing or malware distribution site. The ML classifier strongly supports the malicious nature of this PDF.

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=debate+templates+for+students In PDF document text
    • http://gaponini.poetrywithirena.com/uploads/1/3/0/7/130775320/pikagirezof.pdfIn PDF document text
    • http://files.puremovementdance.com/uploads/1/3/1/4/131406068/nasujaberezaga.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/1/0432/9832/4638/files/29269321955.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8345/4871/files/rakuten_marketing_influencer_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5335/9005/files/zelefarosaga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3434/5625/files/17986655661.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0380/5847/files/51535268053.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8415/1974/files/39734082872.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8693/7253/files/80346841853.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0668/0484/files/beauty_and_the_beast_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4506/0762/files/liwibomexutariduza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9403/2040/files/90688785677.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 2

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_off0000668c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x668C 5160 bytes
SHA-256: 486e46444e669b55c40eb84baf2d5b8241b90cee09d5b5ace1d4b3f7f63c3aee
font_01_sfnt_off000077f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77F6 10068 bytes
SHA-256: 4851a789c2c6d368d8e55d8ebc5e37408e1be2fd702563be576a69ff2bf467fb
font_02_sfnt_off00009a25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A25 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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