Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae684aaf1ccdd9f5…

MALICIOUS

PDF

43.4 KB Created: 2020-08-11 05:58:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 117c684074626ade57ae36ce22c71c04 SHA-1: 59ac38d85c0e53632b410f5a5acbbc057108177a SHA-256: ae684aaf1ccdd9f58986db7c6f6009986a427af258c2f16458a4692d2a2d96ba
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector infrastructure, identified by the 'PDF_MALICIOUS_REDIRECTOR_LINK' heuristic. The document body also contains a search query related to PDF editing, likely intended to disguise the malicious intent. The 'PDF_SEO_LINK_FARM' heuristic indicates a mass of external links, many of which are benign but serve to camouflage the malicious redirector. The ML classifier strongly flagged this PDF as malicious.

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/wb?keyword=editor%20pdf%20online%20love In PDF document text
    • http://files.belaccommunications.com/uploads/1/3/0/8/130873961/f19ee2ad2c7d9f.pdfIn PDF document text
    • http://files.impeachtrumprun.com/uploads/1/3/1/8/131871849/2fc77964a8.pdfIn PDF document text
    • http://files.bittermallow.com/uploads/1/3/1/3/131380107/d587b1263.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/1/0431/5165/5061/files/ain_t_misbehavin_piano_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7265/1413/files/research_methods_in_public_administration_and_nonprofit_management.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9199/3500/files/kapumoke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1770/7413/files/lightroom_cc_shortcuts_mac.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7749/1105/files/rakini.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2577/6288/files/morgan_anesthesia_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5172/8546/files/xesubulebomi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0866/2440/files/trigonometry_7th_edition_mckeague.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2029/5064/files/10th_class_maths_book_rbse_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6579/4965/files/5334895254.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5059/7528/files/cctv_installation_guidelines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2632/5409/files/gibavuvarupaxutanufo.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 8

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_off00006446.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6446 4664 bytes
SHA-256: 4014fe9c56d868eeec0c14f911fb06d3c5418460eec0d4c2a8aeb5e468886a50
font_01_sfnt_off0000743e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x743E 14076 bytes
SHA-256: 6ed59ec00ac64e35fc40935339d8228efe784669ff0e1a98d01c8b18ab54c964

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