Malicious PDF — malware analysis report

Static analysis result for SHA-256 00e4f8f75d214a60…

MALICIOUS

PDF

42.4 KB Created: 2020-10-06 19:35:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 695514d1c60c0bde871eebdecbf228a1 SHA-1: b3acce36ff0406125a15f68441fda231bb090561 SHA-256: 00e4f8f75d214a602db60769aac39a1eab4f35780c91d05e2be3dd0c5e6a3569
234 Risk Score

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://gettraff.ru/strik?keyword=the+deep+blue+sea+play+script+pdf In PDF document text
    • https://site-1036876.mozfiles.com/files/1036876/folixirepemu.pdfIn PDF document text
    • https://site-1039514.mozfiles.com/files/1039514/51760885086.pdfIn PDF document text
    • https://site-1037096.mozfiles.com/files/1037096/49763147118.pdfIn PDF document text
    • https://site-1039695.mozfiles.com/files/1039695/45865561247.pdfIn PDF document text
    • http://gegidag.southamptonsdachurch.org/uploads/1/3/0/8/130873851/a29f6b9d053dd3c.pdfIn PDF document text
    • http://rubilo.agbio-inc.com/uploads/1/3/2/6/132683130/316ed0b4faced.pdfIn PDF document text
    • http://files.donandmargieabroard.com/uploads/1/3/1/0/131071076/f2b818fc74ed0.pdfIn PDF document text
    • http://valaseper.ormistoncollegemusic.com/uploads/1/3/1/6/131606343/rukikaxo_pawewejitomugam.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/1/0434/5289/1297/files/fopumepurotuxujim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0468/8750/1981/files/52749124906.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0495/6569/6152/files/24897060204.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7917/2257/files/dell_xps_l702x_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/4781/1744/files/getosixi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/468d064e-62c0-4266-8e6b-cb376f960067/kazekanopadewadizilefuzew.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_off00006675.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6675 5432 bytes
SHA-256: 3bdc47314f94b9cca1edf1fc25adc9ce9eca46d51dd8cda7ce5f2a4b73172921
font_01_sfnt_off000078e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78E5 10544 bytes
SHA-256: 8c4b95c283bdcc31ebe098d9ba65ebac865a204aaeafdfdaa3f43d794e1440f4

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