Malicious PDF — malware analysis report

Static analysis result for SHA-256 80614087035890e8…

MALICIOUS

PDF

83.7 KB Created: 2021-09-09 11:07:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 0cd3d1bd5e070addf027e08c2afe2179 SHA-1: bea84ec4bc3e82664fd8eb65a8ac21cd32a86b15 SHA-256: 80614087035890e8e976d9a87f84e7298498bd2ef858884857ed37988a39a112
134 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, indicating a high likelihood of malicious intent. The presence of numerous external URIs, many pointing to potentially disposable hosting, suggests a link farm designed to redirect users to malicious content. While no scripts were explicitly extracted, the PDF structure and heuristic firings point towards a phishing or malware distribution attempt, likely leveraging embedded links to achieve its objective.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9860

Heuristics 6

  • 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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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 http://carneslaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/71446302768.pdf
    • http://gyogytornasz.hu/editor_up/tubefavawaboniseb.pdf
    • https://gullyracing.it/admin/ckfinder/userfiles/files/volanoniguvuzujef.pdf
    • https://total-sport.pl/img/upload/files/28042498575.pdf
    • http://fbrasil.com/userfiles/file///bafimizutozulod.pdf
    • https://pomtco.com/technical/files/file/98449588692.pdf
    • https://homeaestheticsllc.com/wp-content/plugins/super-forms/uploads/php/files/a5043853f62c5b1e70dc269ad8c276e4/37540032193.pdf
    • http://chapelguild.com/images/usr/24460750172.pdf
    • http://tfh-filter.hu/_user/file/jemigitilewajikawuvewuv.pdf
    • http://shahnawazonline.com/uploads/files/69108617897.pdf
    • http://madinaboys.com/easydo%20v2.00/files/uploads/3751991606.pdf
    • https://sevsport.info/wp-content/plugins/super-forms/uploads/php/files/1cd89912061709e9a5e05a8971aef8b8/98423623134.pdf
    • https://butzbacher.turnpoint.jo/app/webroot/upload/files/daguzeziriwixopum.pdf
    • https://www.paseppe.gr/ckfinder/userfiles/files/jepewegas.pdf
    • http://technoprofile.ru/userfiles/file/bagosudodovufebigiwev.pdf
    • https://baglab.pl/galeria/file/47753769643.pdf
    • http://ulv-fogger.es/d/files/zitinomaved.pdf
    • http://321eastern-thailand.com/userfiles/files/69332802975.pdf
    • http://bestofbeer.ru/ckfinder/userfiles/files/fakatuxujabok.pdf
    • http://greenld.com/userfiles/90561624355.pdf
    • http://archinfo.ru/uploads/file/51102098939.pdf
    • http://vietdubai.com/userfiles/file/92949259292.pdf
    • http://oroblupiscine.it/userfiles/files/fufusagu.pdf
    • https://pharmawell.eu/ckfinder/userfiles/files/buzesonujefikegudapufol.pdf
    • https://shibbirs.com/media/files/kigawojibirazabevuvexadez.pdf
    • https://samirkumarpaul.com/ckfinder/userfiles/files/31093253856.pdf
    • https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=divine+revelation+of+heaven+and+hell+pdf
    • 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_off0000e401.bin
ca7263c028dc72c77606b8132041711b339e8266c57a1ec390a0e3f79a846473		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE401 10496 bytes
font_01_sfnt_off0000fbca.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFBCA 16792 bytes
font_02_sfnt_off000113dc.bin
d5581048e9ce35c9e4020f14ff7a30e7f05c6c223edf7e29273b8a8393666ee7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x113DC 17388 bytes

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