Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5a84a392d1f6ebc…

MALICIOUS

PDF

38.6 KB Created: 2020-08-21 20:40:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ce59d5a92947be3dd61d6fc77bccff02 SHA-1: b156c99b6f85631dd83affa54d3e472bb4f2a9f3 SHA-256: e5a84a392d1f6ebce25f82fa3965d4ad3f04469fbf0b90c9b8564e3bc17f3f42
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one critical heuristic identifying a redirector to malicious infrastructure at `ttraff.ru`. The document body, though heavily obfuscated, contains text related to 'Boondocks season 4 subtitle' and the malicious URL, suggesting a lure to trick users into clicking the link. 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.ru/pify?keyword=boondocks+season+4+subtitle In PDF document text
    • http://files.misfitspolitics.com/uploads/1/3/0/7/130739060/wilew.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/1/0430/3486/9921/files/dezejimasiwopobubidu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5929/0022/files/rosikusubofunovudup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4440/5397/files/2144685629.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6873/3078/files/65438889151.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2182/0313/files/xutufi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4365/8650/files/35418843005.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7670/4669/files/moponupidokopiluwoboba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8208/7588/files/zonim.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_off00005a53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A53 5180 bytes
SHA-256: c9bb5d66fdfe9b8ba1df0fabc0f8fbfaa69cfde2ac49b1337714102757773591
font_01_sfnt_off00006c02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C02 10012 bytes
SHA-256: af5b5a9a5ead1633ae41ede6158f3fac57b15b4e6cdb0657d3df72ce8ecc9778

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