Malicious PDF — malware analysis report

Static analysis result for SHA-256 031e5fa89230de63…

MALICIOUS

PDF

51.6 KB Created: 2020-08-01 04:45:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4fa5831cfabca910c059e467890ba09f SHA-1: ecf5b2389581d6edb8aaa37381ea26cbb9525e97 SHA-256: 031e5fa89230de63a29a25c9d8ef533a7d9c4a706b04ea34e5845393d6b4853e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains numerous links, many pointing to a redirector service, indicating an attempt to host a link farm for SEO-based phishing. The primary redirector URL is `https://ttraff.ru/pify?keyword=tales+of+vesperia+side+quests`, which is also present in the document body. This suggests the document is designed to trick users into clicking malicious links under the guise of providing game-related content, ultimately leading them to potentially harmful sites.

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=tales+of+vesperia+side+quests In PDF document text
    • http://files.douglasshaunephotography.com/uploads/1/3/2/7/132740480/kezijajavolugel.pdfIn PDF document text
    • http://files.yoyojake.com/uploads/1/3/1/3/131379049/finekuzir-ganavulutosili.pdfIn PDF document text
    • http://files.southernstaraccounting.com/uploads/1/3/1/8/131871864/3998487.pdfIn PDF document text
    • http://files.mccathranpianostudio.com/uploads/1/3/0/7/130775557/veminegedu.pdfIn PDF document text
    • http://files.valleyliberator.com/uploads/1/3/1/6/131606035/padavosagog.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/1/0431/5453/8658/files/kafiduvosojapi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6369/6805/files/2577322566.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7111/1330/files/83281237872.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7800/6437/files/53._544_113._490.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3411/5233/files/worakuvitugosurefemux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fokadexowigexavutezirero.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8379/2533/files/89527443658.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1080/8217/files/12673114540.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4618/3847/files/mizagokoxuxaze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nujogopuju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8283/2280/files/80180480434.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1928/0288/files/22385141328.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007270.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7270 5688 bytes
SHA-256: 99cab685fba7929839173470711d95d6316cca6716180c4d956d0a1974ab48be
font_01_sfnt_off00008631.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8631 5168 bytes
SHA-256: 0d49d4bc2909645b4e24e5314dd77a67735cd2b13e83c6e508720fa970c2c9e7
font_02_sfnt_off000097db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x97DB 12928 bytes
SHA-256: a355e78b04e55d692060f36e443abf6bd1fd052292de6514c2ff51dbd75a29d6