Malicious PDF — malware analysis report

Static analysis result for SHA-256 629a84910a45b804…

MALICIOUS

PDF

47.5 KB Created: 2020-08-19 14:42:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 22d1591da66228b364da6872f9924bb4 SHA-1: f770460ad84a64d1e3f14b671846a8d8109cdeba SHA-256: 629a84910a45b8048aa6bfc3772e6705a6396ec3d9a6ae4732ec6a6f842f08b1
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, many of which point to a redirector URL associated with malicious activity. The document body, though heavily obfuscated, contains the same redirector URL and references a "Famille nombreuse reportage soukdavone", suggesting a lure for phishing or a scam. The ML classifier also strongly indicated maliciousness.

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=famille+nombreuse+reportage+soukdavone In PDF document text
    • http://jaxare.sevenstarsamerica.org/uploads/1/3/1/3/131398504/tipajubufivapu.pdfIn PDF document text
    • http://files.thriveswpa.org/uploads/1/3/1/4/131407823/fewakuleroner_vodukek.pdfIn PDF document text
    • http://joxonid.byptrampolines.com/uploads/1/3/1/3/131379730/6427354.pdfIn PDF document text
    • http://files.bscottart.com/uploads/1/3/1/8/131857419/c2a5786be0ab6ee.pdfIn PDF document text
    • http://sugej.fortlincoln.org/uploads/1/3/1/8/131871745/e886233.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/1/0427/4647/8758/files/agile_mind_algebra_1_answer_key.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/2945/7064/files/50007108679.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6360/6422/files/9488553740.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0668/1497/files/44534225050.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5109/0071/files/45534794262.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4232/4125/files/dobojerixovanew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1778/9863/files/tumof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2924/9694/files/63424896031.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7393/6291/files/cctv_camera_dvr_installation.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_off00006102.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6102 5496 bytes
SHA-256: f00bd923228d0d669b048ea8c17e7158a2c69994f194e9dccf2013f5422a8e2e
font_01_sfnt_off00007394.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7394 5284 bytes
SHA-256: 24087b7aa2eca4755500bf2be5acad30f45b7b36e0a68dba9ee06e652db0551e
font_02_sfnt_off0000868e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x868E 12840 bytes
SHA-256: a152dd7127025309ff0476c5bd755d888a4de7b9738a22f1c25d50a4469d6033