Malicious PDF — malware analysis report

Static analysis result for SHA-256 372e03a57907b7f9…

MALICIOUS

PDF

64.9 KB Created: 2020-08-25 10:26:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e0893af9f9c55b6611ec1d54631b7be9 SHA-1: 406cafc85c7c9660c4e786fe69340482eecd17d6 SHA-256: 372e03a57907b7f97c4abc560e6739425f101f5ca621252e06c1bcb063098085
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Add-Override T1059.001 PowerShell

The PDF contains a link that redirects to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains the text 'Incident accident investigation report' and the malicious URL, suggesting a lure. The PDF_SEO_LINK_FARM heuristic indicates the presence of numerous external links, likely part of a campaign to distribute malicious content. The ML_NYX_PDF_MALICIOUS classifier strongly supports the malicious nature of this PDF.

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.cc/pify?keyword=incident+accident+investigation+report In PDF document text
    • http://merolo.camptesahe.com/uploads/1/3/2/6/132696067/b8b9c90.pdfIn PDF document text
    • http://jaloven.theedgeofthemap.net/uploads/1/3/1/3/131380600/42d927e.pdfIn PDF document text
    • http://files.georgetownfoodland.com/uploads/1/3/2/6/132683334/5823e58e3.pdfIn PDF document text
    • http://besujeper.glennmade.net/uploads/1/3/1/1/131164538/f1372.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/1/0435/3694/1215/files/vosedesibanag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7963/8942/files/mekofozoti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8544/7833/files/51632868115.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8353/0407/files/wenaxos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1891/0870/files/fridge_temperature_log_sheet_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0459/5839/8111/files/punjabi_song_bodybuilding_motivation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0695/0561/files/abc_handwriting_practice_sheets.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://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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a032.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA032 5208 bytes
SHA-256: e8aae767104a9415b595ff21838abad4c016dc6002ae3e48fee2a237ae3b0d2a
font_01_sfnt_off0000b1f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB1F4 15452 bytes
SHA-256: e1e50ddbfb276b67352d39721cf61e057b840fe30317f37db393bbd6bd524b4b
font_02_sfnt_off0000e159.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE159 16220 bytes
SHA-256: 1f026901ce35900c2703117cb8ab09bd0ba15c28f0ef415c8f4bd562f80744f5

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