Malicious PDF — malware analysis report

Static analysis result for SHA-256 fdb563c404b73a7e…

MALICIOUS

PDF

50.0 KB Created: 2020-08-21 18:31:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8d5d42b1959e72f253e1f1c8ca19d4f8 SHA-1: c283bdf1fc42117bc5c9b94cb108a3aede4c15ce SHA-256: fdb563c404b73a7ec699a9c94ccd406aab2aa480cc416a2817c9f8e4ea24b6d0
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a lure for a movie download, which redirects to a malicious URL. It also features a large number of links to external PDFs hosted on Shopify, likely for SEO manipulation or to distribute further malicious content. The presence of a malicious redirector link and a link farm indicates a multi-faceted 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=b.+a.+pass+full+movie In PDF document text
    • http://files.barnwoodindesign.com/uploads/1/3/1/6/131606262/roletekukavib.pdfIn PDF document text
    • http://files.norlinafire.com/uploads/1/3/2/8/132814220/juzunonitim.pdfIn PDF document text
    • http://files.kedarinstyle.com/uploads/1/3/1/0/131070920/a719052.pdfIn PDF document text
    • http://files.fitandhappy.co.uk/uploads/1/3/1/6/131606984/5610993.pdfIn PDF document text
    • http://kavawufod.royaltyscholar.com/uploads/1/3/1/8/131857054/mepodajivupirowema.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/1/0427/4647/8759/files/enciclica_centesimus_annus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5882/1285/files/baroque_period_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3899/7665/files/busawad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9560/4891/files/88316499705.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4507/7671/files/baldur_s_gate_descent_into_avernus_the_trove.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4965/5203/files/57410481590.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2051/7537/files/lulisapadafevivabufokego.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7424/1183/files/99892414566.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4244/7261/files/zeperavilila.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6944/6046/files/spring_framework_black_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9561/1805/files/31100389834.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7105/2703/files/wewaparupogo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5775/0951/files/tagajaxizolowutulu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1057/1940/files/navevedugimoxatisatalo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2521/1296/files/3188020227.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
🗂 Part of campaign: stchrislocker.com 5 samples

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007002.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7002 5092 bytes
SHA-256: 02d676ce1939f7781bdf1bfe26813a9b53d4ff32e9942fc13e01fc4eed15e317
font_01_sfnt_off00008154.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8154 10540 bytes
SHA-256: 173e6375fe016dfaa0b863f3a25c9ffda3db5d20ab3042c016fd1e5773351191
font_02_sfnt_off0000a59c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA59C 16164 bytes
SHA-256: ead7fd593d7f5feef6f283420e9b55f8fa4552f107c64b0063d474dd3355abd8