Malicious PDF — malware analysis report

Static analysis result for SHA-256 e17ff3d04ce75116…

MALICIOUS

PDF

54.4 KB Created: 2020-08-02 23:43:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: afb4d8055ca1ee6ccda2a66d06ffb1a9 SHA-1: 565a00e8bbe81d09e3d6ea188beb55d23f9ea09d SHA-256: e17ff3d04ce75116363b021bb1b3af5c3d8ec4f90bf5fde6034c1bc648aa0525
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service (ttraff.ru) which is flagged as malicious. This indicates a phishing or scam attempt, likely using a 'free download' lure to direct users to malicious content. The ML classifier strongly supports the malicious verdict.

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=sdfix+kitkat+writable+microsd In PDF document text
    • http://files.minxylydia.com/uploads/1/3/0/9/130969659/tefizabokebet.pdfIn PDF document text
    • http://files.aestern.org/uploads/1/3/1/3/131379213/7934677.pdfIn PDF document text
    • http://files.keywestrickburnett.com/uploads/1/3/0/7/130739814/fasigumexikemeleten.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/1/0431/7079/1573/files/toliwanetapumezota.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4929/5776/files/12882663206.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3108/4708/files/kufoluvonenanisolidelume.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4441/3341/files/24590829650.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1174/2628/files/51126111316.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8117/9048/files/macarthur_bible_commentary.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4649/3605/files/nagibabawimataxizot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4444/5092/files/71927147942.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7955/6504/files/kamuwo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1327/4780/files/john_dee_snow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3731/0632/files/vakime.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn 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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off00009206.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x9206 25180 bytes
SHA-256: f23af55b7b433800d59bb1904970c52aa56fbc516a05d53cd12dbc5fbe0c837d
font_00_sfnt_off00005e79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E79 5316 bytes
SHA-256: aeea79b8c763767b08d9bffc6f1105e7c22875b638c04f3dcecfe61aaf023b6d
font_01_sfnt_off0000709c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x709C 9708 bytes
SHA-256: 0e8d96ef8326a75a96fafc97beeb1cde3de30640ca5b4fc6b346be2d95f41a32
font_03_sfnt_off0000be50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBE50 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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