Malicious PDF — malware analysis report

Static analysis result for SHA-256 415f6259a6bab1eb…

MALICIOUS

PDF

41.4 KB Created: 2020-08-06 04:48:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4b59c80a825681171709926c93f48db3 SHA-1: 1fb310797940d7ae85065dcf19ec262905fbeebb SHA-256: 415f6259a6bab1eb2af3fe1bc7114e79560e900452c8b83fcd2b92688d4c2a16
202 Risk Score

Malware Insights

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

The PDF file contains a link farm and a specific malicious redirector URL, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains the malicious URL and references to a 'railway reservation application form', suggesting a social engineering lure. The PDF_SEO_LINK_FARM heuristic indicates the document is designed to host numerous external links, likely for SEO poisoning or to distribute further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=railway+reservation+application+form+pdf In PDF document text
    • http://files.blossomparkaz.com/uploads/1/3/0/9/130969352/mukodorapojibun-xumolijimasaka.pdfIn PDF document text
    • http://files.artistginasouthgate.com/uploads/1/3/0/7/130739715/98d1431e9ca.pdfIn PDF document text
    • http://files.406cavoodle.com/uploads/1/3/2/8/132815807/jetopemesobuteb_zelavobomen_fexawat_kizizuni.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/1/0433/3341/9166/files/14181123910.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3670/3900/files/p90x_nutrition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9639/9265/files/16675549461.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8761/7447/files/maboribobawuzerojideg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0659/0106/files/womaxomemezadevavufulodur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2883/2675/files/erorterung_beispiel_klasse_8.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1128/2840/files/sagawobidad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5794/6519/files/wolalom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4405/1864/files/xugadupowaxudufet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2175/4787/files/tawagipemine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1506/1153/files/neredumezoko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0793/3603/files/class_11_biology_chapter_2_biological_classification_notes.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_off0000630d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x630D 5564 bytes
SHA-256: a44bcfb004a517512e8394b442216e13019e244f26c97ddecd97ca7a63a6ec7b
font_01_sfnt_off00007606.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7606 10060 bytes
SHA-256: 48936ef2fc6480f381e68bdea8d52359e5464ea8308a68413273cc8de93fdccd

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