Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f6a55a149b71c34…

MALICIOUS

PDF

71.5 KB Created: 2021-03-02 03:41:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 7fe615579f5912b91d1ab267cd50a2f6 SHA-1: d4a578bd56bf9cd4b48a2a88dd512ce398ab15e5 SHA-256: 6f6a55a149b71c348689d57017679f0f22153df5cb0f0c276e0ee0ddb1458deb
204 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://druttle.ru/wix?keyword=blank+clock+template+printable PDF link annotation
    • https://fibadajemuda.weebly.com/uploads/1/3/2/3/132303382/d70313b197.pdfIn PDF document text
    • https://sutovuwoti.weebly.com/uploads/1/3/0/9/130968995/9547064.pdfIn PDF document text
    • https://xigujevaw.weebly.com/uploads/1/3/4/7/134701692/bevawumixodivuw.pdfIn PDF document text
    • http://serikanipesemo.iblogger.org/38738253308.pdfIn PDF document text
    • https://kurupatasewa.weebly.com/uploads/1/3/5/9/135958836/puvapaguravi.pdfIn PDF document text
    • https://bagerinev.weebly.com/uploads/1/3/1/6/131636948/1bcb99b501c479.pdfIn PDF document text
    • https://peromukagitogim.weebly.com/uploads/1/3/1/3/131383820/givozanifu_budoju_nifad.pdfIn PDF document text
    • https://duparumiwope.weebly.com/uploads/1/3/4/7/134707207/jenal_zoxibawujow_tijukifuderu_fakaserino.pdfIn PDF document text
    • https://cdn.sqhk.co/wezokobuli/dagjgcO/zazupulox.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/nelizenejakarug/letter_a_logo_design_free.pdfIn PDF document text
    • http://kemufare.epizy.com/best_neve_1073_clone.pdfIn PDF document text
    • http://mibavened.rf.gd/autodesk_fusion_360_student.pdfIn PDF document text
    • http://fakujijaxubet.epizy.com/12678437847.pdfIn PDF document text
    • https://s3.amazonaws.com/rupatojuko/wupom.pdfIn PDF document text
    • https://s3.amazonaws.com/nuselufuzo/flow_cytometry_protocols_hawley.pdfIn PDF document text
    • https://s3.amazonaws.com/rikolesafuwofar/ludofifirorizim.pdfIn PDF document text
    • http://labofowidora.epizy.com/42425815777.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_off0000dcc6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCC6 5156 bytes
SHA-256: 8d194187d4abc23c1ba40fb9fbd80a389d94e5ab077207852f74697414398c1d
font_01_sfnt_off0000ee35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE35 10148 bytes
SHA-256: cfac683cdaeed43f92b3065cb00218e81e310cfa36f828930d59a5193a0f83b7

Open this report in the interactive analyzer, or submit your own file for analysis.