Malicious PDF — malware analysis report

Static analysis result for SHA-256 15cd62199f490782…

MALICIOUS

PDF

42.4 KB Created: 2020-08-12 23:53:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d1ce2ffa0597db07450c3470731c822b SHA-1: 821c87a72f364f3362f2abc7698ec8256a6d563e SHA-256: 15cd62199f49078210fbaa6e3f4a7cc10256559f9e2905a7dc2514af51bd6c68
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links, including one to a known malicious redirector, ttraff.com. This redirector is likely used to obscure the final destination of the malicious payload. The document body and embedded links suggest a lure to download a file, potentially leading to further compromise.

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=unlv+academic+calendar+pdf In PDF document text
    • http://files.lebaneseamericanfestival.com/uploads/1/3/0/8/130814900/2033953.pdfIn PDF document text
    • http://files.flowerofcarmelhermitage.org/uploads/1/3/0/9/130970022/sutenuj_zukafomuvel_pufibidelekapop.pdfIn PDF document text
    • http://files.fsanase.org/uploads/1/3/1/1/131163976/kozilenafivi.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/1/0443/9366/0582/files/full_nfl_schedule_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4882/8065/files/tavuxabinol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7833/6165/files/segmentation_targeting_positioning_example.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4186/6403/files/38944290496.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6590/8136/files/33890686001.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5466/0758/files/andante_andante_piano_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1483/1780/files/84247239439.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8450/4474/files/naughty_america_login.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1311/0951/files/persuasive_speech_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8015/5290/files/58216399676.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2638/1975/files/89491481035.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005c00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C00 4772 bytes
SHA-256: 27a96acac47bf773561eb83173396dce1db55e65d01e83f0f3cdabdf6f3ea50d
font_01_sfnt_off00006c15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C15 10212 bytes
SHA-256: a94eb52584d522f469ee8464e87dacc98078e700969b98e1c48b93853c417b7b
font_02_sfnt_off00008efc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EFC 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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