Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b7538968fa21246…

MALICIOUS

PDF

36.9 KB Created: 2020-08-27 15:28:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6e44c37ef8f1b1f0a23dc05e384b5bc6 SHA-1: 039b0ca18784d2f12a68086a8db2f576f271daeb SHA-256: 7b7538968fa212460ce0ef192b7a305e8a41f4f7ede17720d72e8b6ff8c79595
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF file contains a lure related to a 'Jackson dinky wiring diagram' and embeds multiple links, one of which points to a known malicious redirector. The heuristic 'SE_CLIPBOARD_COMMAND_LURE' indicates the document attempts to trick users into executing commands, suggesting a phishing or malware delivery attempt. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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=jackson+dinky+wiring+diagram In PDF document text
    • http://dokevi.uccbaycity.org/uploads/1/3/1/3/131378898/a95211a0b17e6e2.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/1/0439/9710/2238/files/edit_online_free_with_same_font.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5305/5128/files/converse_plataforma_negras_rebajas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1932/0992/files/skinny_love_tuning.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3698/9850/files/voxujuxuvewum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5481/7690/files/lemisirowerevubaguvix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4578/9600/files/53587621822.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7047/8746/files/96943657049.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5724/9430/files/fuwotegebola.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5095/1066/files/kifapegazunugukido.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 5

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_off000051cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51CC 5476 bytes
SHA-256: 00316592812deb960360e752460b74d0cb6ba9a4500617b9b405734b843b5ad7
font_01_sfnt_off00006468.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6468 10244 bytes
SHA-256: 21eef4332d5455bb051c5f7e8bf8b63900ac65c2f58b763d30d6058b9b57e5ef

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