Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ad0d6a708b20618…

MALICIOUS

PDF

41.9 KB Created: 2020-08-30 07:04:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a94dcdadc68271bc3219cca4146f1d0f SHA-1: b1af3772f0e6e68ed04dd984af06f9f8b191d7d9 SHA-256: 7ad0d6a708b20618ba37ecb9d8b2800536e45f5b1c9ea47a66b5d46c781cbf86
274 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link T1059.007 JavaScript

The PDF contains a lure related to 'Miracast: not supported by graphics' and embeds a malicious redirector URL. Heuristics indicate it's a social engineering attack (ClickFix) that instructs the user to copy/paste content into a shell, likely to download and execute a second-stage payload. The ML classifier strongly supports maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 7

  • 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
  • ClickFix social engineering attack high SE_CLICKFIX
    Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
  • 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.cc/wix?keyword=miracast%253A+not+supported+by+graphics In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_e71686ae0bf54d148562e98766d6f469.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/2486b5_35c5fb2466ab4a3f9672f47c728dc0d5.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/9374a7_1b557175f9994b2a8965d7905894bc8f.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/158fb9_1d5bc906c7f14648a834637fd7ec67f2.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/e42ee3_419438a5571942599397768670dace55.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6924/3549/files/jomumurimobifoteluwuta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6779/3817/files/brooklyn_colm_toibin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0962/2687/files/strength_of_materials_solved_problems.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8782/1984/files/59698893111.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4629/5959/files/windows_10_hardening_script.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7016/8992/files/68951566550.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1077/6484/files/17521800792.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6827/6384/files/cheddars_erie_pa_menu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1488/1433/files/perabed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6761/3087/files/8631623254.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9983/1968/files/97011925045.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/8233/4617/files/nifonobezizonutix.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000653e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x653E 5600 bytes
SHA-256: 6dbec7dbfd846a4d66613e21d75942d05390ae06ec03e62a9d2d99ded7fb3147
font_01_sfnt_off00007844.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7844 10004 bytes
SHA-256: c02a37352eb11cf1bfc9b4b7534d34b19b74e870088113e551eedee7ed261854