Malicious PDF — malware analysis report

Static analysis result for SHA-256 27c3358f1593ad34…

MALICIOUS

PDF

69.0 KB Created: 2021-02-28 06:02:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 2f70defa1d446d26b4ef9502de10b828 SHA-1: b13201bc4eacb56669ae6c28ca6ddad1a66bdfa8 SHA-256: 27c3358f1593ad34fd5c08de1115d33f8fc6e5249940ef4bfddd6a89408c92fa
216 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://seumenha.ru/wix?keyword=police+reports+paulding+county+ga PDF link annotation
    • https://palujaburufo.weebly.com/uploads/1/3/2/7/132740236/wakelonibojase_jezisupil.pdfIn PDF document text
    • https://cdn.sqhk.co/baxemazisod/hcjRvDy/warfighter_hemp_reviews.pdfIn PDF document text
    • https://newosupileseru.weebly.com/uploads/1/3/2/3/132303396/ximenoj-vilamuzu-zoxex-safudapusibimas.pdfIn PDF document text
    • https://wufisosudima.weebly.com/uploads/1/3/0/8/130874090/ba2c81852a9c6.pdfIn PDF document text
    • https://cdn.sqhk.co/gojogefe/i9uqzhd/bevefomarilojilogalemo.pdfIn PDF document text
    • https://niritamin.weebly.com/uploads/1/3/4/4/134486676/kajamalimisi.pdfIn PDF document text
    • https://wibugosavuzatug.weebly.com/uploads/1/3/4/3/134349607/zosefutek.pdfIn PDF document text
    • http://zakukamupavi.22web.org/form_submit_button_javascript_function.pdfIn PDF document text
    • https://niritopep.weebly.com/uploads/1/3/4/6/134634222/lesudipetofoj.pdfIn PDF document text
    • https://gupapuna.weebly.com/uploads/1/3/4/7/134726568/zuzafinaxuwi.pdfIn PDF document text
    • https://xexiwimelogodit.weebly.com/uploads/1/3/4/5/134593193/7147793.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/webipejonavuv/baleshwar_hd_video.pdfIn PDF document text
    • https://s3.amazonaws.com/bidivo/excel_sales_dashboard_templates.pdfIn PDF document text
    • https://s3.amazonaws.com/vibuvomomuv/birds_images_free.pdfIn PDF document text
    • https://s3.amazonaws.com/kudowo/secure_server_email_settings_android.pdfIn PDF document text
    • http://xewowibaxe.rf.gd/51111496181.pdfIn PDF document text
    • http://lowoxewepabetex.rf.gd/drop_down_list_google_sheets_ipad.pdfIn PDF document text
    • https://s3.amazonaws.com/jixeremipet/faxagewelinudujisizo.pdfIn PDF document text
    • https://s3.amazonaws.com/nawosineromigi/update_mysql_php_form.pdfIn PDF document text
    • https://s3.amazonaws.com/bulalowisu/biblical_interpretation_of_dreams_and_visions.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_off0000d146.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD146 5344 bytes
SHA-256: 1c01a58747644dfffce6e2c2abeb51baa15f418839801a1892c7ea36f6db6eaf
font_01_sfnt_off0000e386.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE386 10428 bytes
SHA-256: a9485dd5b78190207167c21b4f69e11512c35277fe3100b9d504f1ff773a9cfa