Malicious PDF — malware analysis report

Static analysis result for SHA-256 78300d01c2f6250e…

MALICIOUS

PDF

33.5 KB Created: 2020-08-16 23:24:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0242035084a775c6eea2d08ff63e4162 SHA-1: 0ce1b572f70e03942afeb60853ae5543cd8af776 SHA-256: 78300d01c2f6250ef965df21bd88c4ec413b0036b18f550aa67840d9a3593794
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to malicious infrastructure, specifically a URL associated with SEO spam and phishing lures. The document body, though partially obfuscated, contains text that appears to be a lure for a game guide, aiming to entice clicks on the malicious link. The ML classifier strongly indicates maliciousness, and the presence of numerous external links further supports a malicious intent to redirect users.

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=thaumcraft+6+guide In PDF document text
    • http://dewif.vanbrouck.com/uploads/1/3/2/7/132740720/1677679c.pdfIn PDF document text
    • http://files.mdeyedocs.com/uploads/1/3/2/6/132683063/f8206cab4c4c9b1.pdfIn PDF document text
    • http://files.rayzimmermanauthor.com/uploads/1/3/1/3/131382673/1303474.pdfIn PDF document text
    • http://vexujopar.silkysbrooklyn.com/uploads/1/3/1/3/131378950/sulume-garij-fubejipixelojal.pdfIn PDF document text
    • http://files.mysaintbarx.com/uploads/1/3/1/4/131406827/suzumik-nekipokijev-sekaz-tefekikas.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/1/0433/2008/2590/files/99482060360.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1867/1512/files/brokenness_aside.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6127/2983/files/59905100321.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9674/4871/files/27163285298.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2670/9665/files/72501047235.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7773/0464/files/ludora.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/99237037604.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4445/1990/files/integrated_cost_accounting_system.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5900/9943/files/carbon_dating_examples.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_off0000469c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x469C 5328 bytes
SHA-256: 169951ad3077bc5ec86daf74cffbee0154cc68262a8d38d87227d1fde25d1960
font_01_sfnt_off00005894.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5894 9600 bytes
SHA-256: aa74e74db405eabd4c3f7135d3df5ecfcb9ae4033d91eee0b578cb5627502956

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