Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e4f256b5900238d…

MALICIOUS

PDF

62.3 KB Created: 2020-08-08 11:49:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 683f4adf82c59377de4655c82343aa79 SHA-1: 2628f002980d249b9f5a2f1a240a8bcf9ea999c7 SHA-256: 1e4f256b5900238de0c6ca5c91bee388f92c652b0e72b155300ce363f4cfae74
194 Risk Score

Malware Insights

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

The PDF file contains a mass of external links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL that is likely intended to lure the user into clicking on it. This suggests a phishing or redirection attack aimed at delivering further malicious content.

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=international+capital+markets+pdf In PDF document text
    • http://files.nccdba.com/uploads/1/3/0/7/130776728/kufurobixa_zabimijuwinog_gudijitin_torama.pdfIn PDF document text
    • http://files.thesledshed.net/uploads/1/3/1/0/131069915/8d252b1d5.pdfIn PDF document text
    • http://files.kpotterfineart.com/uploads/1/3/2/6/132681877/nonufanuwifowul.pdfIn PDF document text
    • http://files.davidbosephotography.com/uploads/1/3/1/4/131483009/887848.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/1/0430/3080/6679/files/teluduzuwiwovuzadesetore.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4170/2567/files/2269263253.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9143/5422/files/rokulikazubigare.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9242/5384/files/pawudidozik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2962/4992/files/timaxeradibom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2720/2205/files/memorex_label_maker.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8748/7385/files/pekitusebefav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3040/4502/files/71251136376.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4607/5554/files/dezago.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0487/9271/files/96664092597.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/3196/2535/files/jijewamomesaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2553/8965/files/cub_cadet_lt_1045_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5185/9616/files/dilafafuxulaxazuzu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0645/2127/files/18030779937.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 4

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_off0000b6c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB6C1 5304 bytes
SHA-256: 4b2210b4b59cdb07d90c410789a9a8f610768ffcdf8ce4781da8b1a9bfccbcfb
font_01_sfnt_off0000c8b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8B5 10304 bytes
SHA-256: 5059ede1df2a00fb1025c71ccce11609f76d27833e876243206be476d34a1f7b

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