Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6505468c6791f36…

MALICIOUS

PDF

85.5 KB Created: 2021-07-02 18:57:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 21ff150452acfbd36c61f5b799ec7527 SHA-1: 355a863ba4e6262002b8e9cc197854f2fe6c1b6b SHA-256: d6505468c6791f368f33e649918954ca61d0233f1eb8f5ea979a38c9fea63f9c
116 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The ML classifier and ClamAV detection strongly indicate maliciousness. The 'SE_CALLBACK_LURE' heuristic confirms the document's intent to trick users into calling a fraudulent number, typical of tech-support scams or callback phishing. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it may attempt to download further malicious content or redirect the user to a phishing site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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) 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://ncfouting.com/wp-content/plugins/formcraft/file-upload/server/content/files/160949cdd3f8f8---37349017472.pdf
    • http://www.infranetltd.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083bb388f76d---magejebewimiletivujapita.pdf
    • https://www.asahinafunnels.com/wp-content/plugins/super-forms/uploads/php/files/jd2m6c5hl7s40dvktieupfu08t/figulod.pdf
    • http://www.sbawerribee.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1609671e7d9e18---sarudasekozolumigita.pdf
    • http://elenasteele.com/wp-content/plugins/formcraft/file-upload/server/content/files/160de92e182103---62076419340.pdf
    • https://nscs.org/wp-content/plugins/super-forms/uploads/php/files/c79bbc6a685f473cca1b2e659169272a/78047486270.pdf
    • https://dialogueinpraxis.net/files/docs/11734695714.pdf
    • https://benchmarktransitions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c7000fafa75---15189427407.pdf
    • https://www.caesarstravel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d5b1be27b4---77327135031.pdf
    • http://herculesestateplanning.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/22742350620.pdf
    • http://chinocorporatechallenge.com/clients/6216/File/welirebabifusox.pdf
    • http://dinskayarealty.ru/media/file/mawoxibalob.pdf
    • http://china-engine.net/ckfinder/userfiles/files/fubedogekus.pdf
    • https://www.certificagreen.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608066c9c23c8---gajerokavesezipuzorivazib.pdf
    • http://riskhedgetech.com/uploaded/file/70761598060a5534277875.pdf
    • https://www.qbuildsoftware.com/wp-content/plugins/super-forms/uploads/php/files/844f3070afca441651d3f2edd0a82119/logasipoge.pdf
    • https://dacoma.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160bc3ef9a15b2---zomabuwidowalosu.pdf
    • https://nestsearch.in/admin/uploads/file/34892061667.pdf
    • https://mondialardesia.it/file/segivejuxasesetalikudug.pdf
    • http://www.marcado.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160ac21593c9b5---31477394788.pdf
    • https://lllk.ru/wp-content/plugins/super-forms/uploads/php/files/f24e5b4d74bca484c1ea175736b3c75d/2352445842.pdf
    • https://nuregio.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b16b1a39019---97103328769.pdf
    • https://bharatbiodiesel.com/userfiles/file/59001138327.pdf
    • https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=prayer+for+protection+by+the+blood+of+jesus
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e9f3.bin
75ad34dda14f54348250b4d0732b6a83be01037072df6ff44379387e28989451		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE9F3 17152 bytes
font_01_sfnt_off0001169b.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1169B 16792 bytes
font_02_sfnt_off00012eb2.bin
4dc1d154ea7ff63d6f882895e3a00040e084a0eae15934d3e08a05a0f032a151		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12EB2 11200 bytes

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