Malicious PDF — malware analysis report

Static analysis result for SHA-256 e492dde5a026a4ff…

MALICIOUS

PDF

34.3 KB Created: 2020-08-08 19:45:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c250dfb564e0a7a55dc74f039dc8f7b8 SHA-1: a56affeaf094ca8215573767b349f053446330d0 SHA-256: e492dde5a026a4ff54a53c0b58b1d214117b235ef35942e64ecf7d4387cbf1f9
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a malicious redirector URL, indicating an attempt to lure users to a compromised site. The document body, though heavily obfuscated, contains the primary malicious URL. The presence of numerous embedded links, many pointing to Shopify, suggests a tactic to disguise malicious activity within a large number of seemingly legitimate resources. 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.com/pify?keyword=blessed+be+your+name+chords+pdf In PDF document text
    • http://files.siliconvalleystalent.com/uploads/1/3/0/8/130814234/volizisen.pdfIn PDF document text
    • http://files.sjcacademy.com/uploads/1/3/1/8/131858592/cfd26d.pdfIn PDF document text
    • http://files.myeightcents.com/uploads/1/3/2/6/132682787/6045611.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/1/0433/9780/8279/files/lebozidigepabud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7079/9510/files/tesadajetusunaje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3453/3275/files/losuritofojasufazuwamiwug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7757/3539/files/reverse_string_c.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0310/1863/files/matlab_least_squares.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8957/6601/files/13439435110.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3086/3259/files/93819512254.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0065/1158/files/a_level_physics_notes_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4194/7801/files/25056491917.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5106/5243/files/67928719068.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8093/1742/files/66602580083.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1445/3410/files/musikovi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/3181/1480/files/jovirafiwojemerozerudedi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4975/3507/files/74555596480.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_off000048e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48E6 5688 bytes
SHA-256: 7f64387c4518425635dcc37e7497febd71401d5df4df59df9c58f29f164b9b7d
font_01_sfnt_off00005c16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C16 9368 bytes
SHA-256: 18ac2181c21957ee0f569f299830df4fae18131757978cf6ba0ea6df616e7a63

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