Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a375e03d4e7c06e…

MALICIOUS

PDF

39.9 KB Created: 2020-08-27 16:11:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f0b964851ad681ef1ab52ad1d64ae2cc SHA-1: a99fd58da21cd8bf2c6ff725c1f9259c31d5f1f0 SHA-256: 5a375e03d4e7c06e75aad3d9ae3bc0cf3d367aa8acd9d152e6d27548aa6a2b3b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, many pointing to SEO redirectors, with one prominent link leading to 'ttraff.ru'. This redirector is flagged as malicious and is presented as a lure for 'intel hd 515 driver' downloads. The ML classifier strongly indicates maliciousness, and the structure suggests a phishing attempt to redirect users to malicious infrastructure.

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=intel+hd+515+driver In PDF document text
    • http://files.rainaiscrazy.com/uploads/1/3/0/7/130739525/eee624f8ed339.pdfIn PDF document text
    • http://zunegeni.cgvideoproductions.com/uploads/1/3/0/9/130969352/36224.pdfIn PDF document text
    • http://zeropi.bellevueshockers.com/uploads/1/3/1/0/131070571/3387046.pdfIn PDF document text
    • http://files.linwoodrumney.com/uploads/1/3/0/9/130969322/2c8ace76353e4.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/1/0434/7474/7545/files/balancing_equations_grade_10_worksheet_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8153/9489/files/puwalazivo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5955/2155/files/76081706522.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8471/7979/files/fapugawuxev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6668/6617/files/mubaminigubulamo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2750/4031/files/just_cause_1_achievement_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3123/2674/files/reganazi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/9234/8838/files/26690098641.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2019/7789/files/82622106157.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 5

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_off00005651.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5651 4696 bytes
SHA-256: 86e60e9c2ce2fd224ac046655cfd3a1b41b617e04d8aa9d5566a137b9c0aab4e
font_01_sfnt_off0000664c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x664C 14088 bytes
SHA-256: 69225171f3a8505d397e207e72f3ced98e3ba3d4362e1902353dad19f8819d61

Open this report in the interactive analyzer, or submit your own file for analysis.