Malicious PDF — malware analysis report

Static analysis result for SHA-256 038af522ae8ad3c4…

MALICIOUS

PDF

59.0 KB Created: 2020-08-18 14:09:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 74f9a034a430b66d831370be9e4c2f8c SHA-1: e531f425b947d858869010b6a348c09c924b88b9 SHA-256: 038af522ae8ad3c40a842cc48aa2d923d734ca3461e8e51497ed47af1351d9d0
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm designed for SEO manipulation. The document body, though partially corrupted, contains a URL that redirects to a malicious domain, likely to trick users into downloading further malware or phishing for credentials. No scripts were extracted, but the presence of numerous embedded URLs points to a phishing or redirection campaign.

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=cisco+sg350-+28mp+datasheet In PDF document text
    • http://fobidos.noccassoc.org/uploads/1/3/0/9/130969280/5a5ece43d030.pdfIn PDF document text
    • http://files.nickynoodlesdoodles.co.uk/uploads/1/3/0/7/130775830/laxemixugazisupole.pdfIn PDF document text
    • http://files.imaginationplayhousesf.com/uploads/1/3/1/0/131071037/zeduj.pdfIn PDF document text
    • http://files.misssuesfuturescholar.com/uploads/1/3/1/1/131164479/xawixozodubora.pdfIn PDF document text
    • http://files.mywhiteengineering.com/uploads/1/3/2/6/132681863/mikofivut.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9096/7714/files/bezijaguzeva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4441/3341/files/bestiary_4.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3565/5335/files/apple_company_balance_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1564/3031/files/44382953783.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5475/9069/files/71306923790.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4890/2554/files/67325840248.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9324/5590/files/28998518717.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jaxigosileworu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8358/6977/files/loxegarasifogobezim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6126/3001/files/los_4_acuerdos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7750/1079/files/brillouin_zone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7785/1550/files/2d_shapes_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6065/8333/files/slavery_and_slave_trade_in_africa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/80804151078.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
    • http://www.gnu.org/licenses/gpl.htmlIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000702e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x702E 6052 bytes
SHA-256: 725c64097f56e66cce3aefd6e9e5cf880ea4392699bc13cc9297334db253d6aa
font_01_sfnt_off00008498.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8498 9320 bytes
SHA-256: ffc2e7df17811494d1257eb4c65e068b3e250bc1f589a682f731b469cff8c740
font_02_sfnt_off00009e8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9E8E 13448 bytes
SHA-256: 1685fc5900c58e6f1336133d174ec7326a8250cb296e71294f9c867013567d94
font_03_sfnt_off0000c96a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC96A 16060 bytes
SHA-256: 5b0d2701ab39d2f69c66d7d16c60d8db0b323aa0832947137e757b5401d27330

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