Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3e3a14525024b3b…

MALICIOUS

PDF

53.0 KB Created: 2020-08-03 17:26:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d254ab36ec5433bce00e5cdb601a7159 SHA-1: 46b02f7db68cd2b5c5fccfa94e273f5c79a498d2 SHA-256: e3e3a14525024b3b0ea81f684b992909766a49f654cb8cbd6ac9761b22367c10
194 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 Shopify and appear to be part of an SEO link farm. One prominent link, https://ttraff.ru/pify?keyword=java+programming+language+full+tutorial+pdf, is identified as a malicious redirector. This suggests the document's primary purpose is to redirect users to malicious infrastructure under the guise of providing a tutorial, likely for phishing or malware distribution.

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=java+programming+language+full+tutorial+pdf In PDF document text
    • http://files.winesbymina.com/uploads/1/3/1/6/131607163/kubonu.pdfIn PDF document text
    • http://files.umscorp.net/uploads/1/3/2/6/132695428/9757217.pdfIn PDF document text
    • http://files.navy101.com/uploads/1/3/0/8/130814115/foragutagaj-buvusifi-jolonurudibirar.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/1/0428/8898/6787/files/3112068692.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8646/2628/files/35587542063.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4964/7254/files/r_kelly_songs_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3601/6802/files/mizafewakubepagufiripizu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0361/7173/files/rokukoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7608/4117/files/true_strike_cantrip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4054/6721/files/40069746474.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4836/9319/files/69981855083.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6262/3394/files/mogojiralikanetimad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/setixinojed.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn 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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006144.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6144 6568 bytes
SHA-256: 2ba6e0c4516ae528974428ab90d2fcb845e31fc6427c3681d976df34e50bf0fe
font_01_sfnt_off00007191.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7191 5232 bytes
SHA-256: 787a1237fc11f857828ca9f2d570485fbc19ff033dd3c233861e414e2ee6f43f
font_02_sfnt_off00008352.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8352 1804 bytes
SHA-256: f101fc3023143cbc24e87e2583c027b8b5ab7dfb9504abb66ff99af634bcdac9
font_03_sfnt_off00008c2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C2D 10760 bytes
SHA-256: 48d8ad2063c7119dc61857773a08a7428f861440016f3375d3f8b4e26e28414d
font_04_sfnt_off0000b0ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB0BA 16148 bytes
SHA-256: 64f21e55c2f29c6f605e8f9fd96e7f7b34f9b4a26fdc717ddead948457370e3b