Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5ae383453a2ca97…

MALICIOUS

PDF

49.1 KB Created: 2020-08-23 02:54:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6c0951d4afc17d868c4b4e1a5c3b65d5 SHA-1: 26228e8ae95506ed0af0f8d966e2243b16c11ffb SHA-256: f5ae383453a2ca973a4baf5b51842ec712ce55f5b529db0b9d40c138fd1e71b7
194 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with a critical heuristic firing for a malicious redirector. The primary malicious URL is https://ttraff.ru/pify?keyword=shatabdi+express+chennai+to+bangalore+platform, which is likely used to redirect the user to further malicious content. The document body itself contains garbled text alongside the malicious URL and other embedded URLs, suggesting a lure to disguise the malicious intent.

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=shatabdi+express+chennai+to+bangalore+platform In PDF document text
    • http://files.artisticimprintsapparel.com/uploads/1/3/1/3/131383283/ponivizokegafovujaz.pdfIn PDF document text
    • http://vagiwi.cqschoolsjazzfest.com/uploads/1/3/1/4/131483281/523210.pdfIn PDF document text
    • http://mojisiv.nataliemarie.org/uploads/1/3/1/4/131437502/kufixawaro_zopamisire.pdfIn PDF document text
    • http://kikaza.funin4th.com/uploads/1/3/0/7/130740596/9323383.pdfIn PDF document text
    • http://subafuf.sscfc-braintree.com/uploads/1/3/1/4/131454427/fd6109ce6c0b.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/1/0435/2340/8032/files/68816578399.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3365/7507/files/shareef_badmash_movie_songs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0645/9032/files/stock_market_analysis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6764/5857/files/xelotovevigofutoda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0948/1626/files/97294970261.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8830/6586/files/54798972451.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2072/1055/files/polonurajusuxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0935/1585/files/91237625054.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2668/4824/files/mobirimevifuwufavevo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8980/3941/files/20582052844.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2902/0317/files/76471898826.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000629b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x629B 5880 bytes
SHA-256: 119f7a79ee2ff3673d88efc781ce6432dd1a7f65d86813549221a53914203801
font_01_sfnt_off0000766f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x766F 13984 bytes
SHA-256: e4e4d479d505f7a80b6aebca21e06c43421189fcbf91585cdaa246a861f317d7
font_02_sfnt_off0000a251.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA251 16100 bytes
SHA-256: 4a3d97cb0f01b67db0f2c0c67b38c82a67e4beafd846d3a18a1ca53b20acedf2