Malicious PDF — malware analysis report

Static analysis result for SHA-256 82e49ec6169770a1…

MALICIOUS

PDF

55.3 KB Created: 2020-08-06 16:55:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 504a3acf6c30712b9843bf57eea1961d SHA-1: f48e151dc98b25b4054e799185fd1052e1f5f24f SHA-256: 82e49ec6169770a13bc5112e07c4f9af093a9b2103949843dad968e7a2353450
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links to external resources, many of which are hosted on domains associated with SEO link farms and redirectors. The primary malicious indicator is the link to 'ttraff.ru', a known malicious redirector, which is presented as a download button. This suggests the document is designed to trick users into clicking the link, likely leading to a malicious download or phishing page.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=history+books+download+in+urdu+pdf In PDF document text
    • http://files.milescollegesportshalloffame.com/uploads/1/3/2/6/132682564/927fa8c8a9.pdfIn PDF document text
    • http://files.jamiejordansings.com/uploads/1/3/0/7/130738607/4964679.pdfIn PDF document text
    • http://files.mehrbach.com/uploads/1/3/0/9/130969458/nenuvuvodopan_depowuzudofizer_muxanogowimuge_fatabupitowi.pdfIn PDF document text
    • http://files.gemgrooming.com/uploads/1/3/1/4/131409508/kuvojazogos.pdfIn PDF document text
    • http://files.virtualshow.org/uploads/1/3/1/4/131408172/6208442af.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/1/0431/2183/6193/files/96026549258.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1220/9315/files/the_nice_guys_putlockers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3437/7372/files/el_caliban_y_la_bruja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4312/5413/files/60732330731.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9704/6696/files/zixewiveve.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1915/6130/files/49808523110.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7564/9180/files/47673770130.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0200/2584/files/71057467238.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3308/4575/files/difudafidusebazul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7650/1147/files/12373535227.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_006_off0000a45a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xA45A 25500 bytes
SHA-256: 219d52ec33beaf8c1a4239af53ccb7c8ba54b4dd643b50df32ff6f77e35e6bb9
font_00_sfnt_off00006efe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EFE 5392 bytes
SHA-256: a084b755317b51ea985224f9fc6a1cf42147a4c93d26d0b0b1c435d1192ff973
font_01_sfnt_off00008174.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8174 10124 bytes
SHA-256: 9d0720c1ff586e99acb5464abc0c5dd349433e429c82326e52bb2d121fd4b76d