Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ad4e10b57c5e4b5…

MALICIOUS

PDF

46.0 KB Created: 2020-08-23 20:50:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 97c272b57d22768af5a591f14d64a750 SHA-1: 378a63cafcd1a653291f9ff10de2ab7663465f2d SHA-256: 8ad4e10b57c5e4b54ddbc59a4d62260c10c5b3eb5591d3c4a8b94a110bcf8698
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one specifically pointing to a known malicious redirector. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms this, and 'PDF_SEO_LINK_FARM' indicates a large number of external links, suggesting a spam or phishing campaign. The ML classifier also strongly flagged this PDF as malicious. The primary attack vector appears to be social engineering through deceptive links within the document.

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=bachelor+of+medical+laboratory+science+curriculum+pdf In PDF document text
    • http://zanomope.tulalipyouthservices.com/uploads/1/3/1/4/131437605/8754896.pdfIn PDF document text
    • http://files.apps.myworldrules.com/uploads/1/3/1/4/131453984/kaxavanudisamin.pdfIn PDF document text
    • http://junitet.friscotxfencing.com/uploads/1/3/0/8/130874575/1214522.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/1/0430/2441/6931/files/gozovajezuvinizejokomavi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4994/3202/files/97840694659.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3331/9831/files/kilafubi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7807/1960/files/refraction_and_reflection_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5663/3758/files/logan_lathe_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3952/1958/files/antivirus_android_terbaik_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8512/8095/files/50535392696.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3802/1544/files/70061660505.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7921/2959/files/supply_chain_management_process_flow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8524/2269/files/sigma_notation_properties_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1280/0159/files/ought_to_need_to_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8385/8080/files/8189145226.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5797/9304/files/nupopufagafuv.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

Related samples 7

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000073ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73EA 5688 bytes
SHA-256: aa97e78c9b57cd90587a7c643c7dd2a8623d2bf3727baeec4c8bea91bdb9c04d
font_01_sfnt_off00008717.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8717 10412 bytes
SHA-256: b3d3899322604e0ca9095481966c2ecc60d3ce8b64c1051f00d74783b0259a3d

Open this report in the interactive analyzer, or submit your own file for analysis.