Malicious PDF — malware analysis report

Static analysis result for SHA-256 bec04964c8002ee7…

MALICIOUS

PDF

42.4 KB Created: 2020-08-18 13:22:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b88930016285f798f8a98bad46deef79 SHA-1: 04c118baedb10ab80d16230440af0caeccc1c3e5 SHA-256: bec04964c8002ee77a67044bc18b963b12a09efc649c845f47121f74de9453c3
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded URLs, with a critical heuristic firing for a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains references to a 'matchbox template pdf' and a URL that aligns with the redirector. This suggests a phishing or scam attempt where users are tricked into downloading potentially harmful content via a link farm.

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.com/pify?keyword=matchbox+template+pdf In PDF document text
    • http://files.support.famhealth.com/uploads/1/3/1/4/131437740/3357936.pdfIn PDF document text
    • http://files.columbuspremierleague.com/uploads/1/3/1/6/131606968/53b00996f12b12.pdfIn PDF document text
    • http://murira.tom-lane.com/uploads/1/3/0/7/130776485/nubiwaruwagupolidiz.pdfIn PDF document text
    • http://files.kumquatcoffee.com/uploads/1/3/0/7/130776386/d17c3013c92.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8344/0030/files/arpegios_para_guitarra_clasica.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/3577/6408/files/tony_hawk_american_wasteland_soundtrack.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2761/1295/files/zobujavo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8066/3705/files/xixixulapexevewek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7511/6964/files/simple_english_grammar_test_with_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9462/8769/files/avira_2012_free_offline_installer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9245/8152/files/accident_reporting_station_london_ontario.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4186/6403/files/fall_out_boy_immortals.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9906/8310/files/zexiwasatagazuxizu.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 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005a2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A2A 4968 bytes
SHA-256: dd0cc5c430893c34f11d7287578fb3a6ab12e36fdce1d279e099c2ea5a1631c0
font_01_sfnt_off00006b1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B1C 10508 bytes
SHA-256: e2d9a4aef952c7e07c056f2cdc791c90da3d5ae1ee8e41f13804fc01fa6a2db8
font_02_sfnt_off00008eec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EEC 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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