Malicious PDF — malware analysis report

Static analysis result for SHA-256 beead73e29fd53ce…

MALICIOUS

PDF

90.6 KB Created: 2021-08-11 21:29:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-26
MD5: 6af4bf7dd54cf6841b7a5efd3b9ea134 SHA-1: e88c9665f38bb4428df5fc203f19596aead049af SHA-256: beead73e29fd53ce652d7db3cdb9b438760a5e8ce98b862f6b7b0868c4d3bb60
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. The file contains numerous external URIs and link farm patterns, suggesting it is designed to redirect users to compromised websites or phishing pages. The presence of multiple links on disposable hosting further supports a malicious intent to distribute harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9876

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
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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.
  • 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://synerhu.ru/uplcv?utm_term=como+se+atiende+una+boveda+espiritual+pdf PDF link annotation
    • https://sv-fin.ru/wp-content/plugins/super-forms/uploads/php/files/991254713aeb93dbca53663f632432b3/jitudiru.pdfIn PDF document text
    • https://www.dazzlingdecor.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16083cc8a23ee7---91624168968.pdfIn PDF document text
    • https://fotoprint.lv/downloads/file/39946905224.pdfIn PDF document text
    • http://yossy.biz/userfiles/file/37357688059.pdfIn PDF document text
    • http://eltonltd.ru/sites/default/files/uploads/83674963929.pdfIn PDF document text
    • http://unipell.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a762d5671ef---43094738664.pdfIn PDF document text
    • http://slp72.com/clients/7/7b/7b902bee17765b19ebdde6030f24742d/File/vojukepabusapawe.pdfIn PDF document text
    • https://birudongker.com/contents//files/29734198698.pdfIn PDF document text
    • http://zpkprzemysl.pl/ckfinder/userfiles/files/48397997477.pdfIn PDF document text
    • https://lllk.ru/wp-content/plugins/super-forms/uploads/php/files/eb0e405bd6e32e4a46293040643dffb9/51671862483.pdfIn PDF document text
    • http://poledance-chrudim.cz/files/file/mobodalu.pdfIn PDF document text
    • https://pabausa.org/wp-content/plugins/formcraft/file-upload/server/content/files/160c1e6af5c525---sebowa.pdfIn PDF document text
    • https://mattress-leader.com/media/13266961837.pdfIn PDF document text
    • http://geologicatoscana.eu/userfiles/files/redipo.pdfIn PDF document text
    • http://moje-stranky.eu/userfiles/file/kovitazapozetimul.pdfIn PDF document text
    • https://tavio.ru/files/file/36799872476.pdfIn PDF document text
    • http://aihyang.com/userfiles/file/21082166005.pdfIn PDF document text
    • https://bindazzled.com.au/wp-content/plugins/super-forms/uploads/php/files/a67a841a2a6aa309681f4d74e32c72b8/muzof.pdfIn PDF document text
    • http://cunningham-reunion.com/clients/7/73/7399477c88ef979e1ad3ac38e42cffcc/File/87058179251.pdfIn PDF document text
    • https://srmhomes.com/images/bulk_images/files/kofebeteza.pdfIn PDF document text
    • https://www.auto-ecole-rive-droite.fr/ckfinder/userfiles/files/jawidabumabagivaba.pdfIn PDF document text
    • https://www.avenueroadadvertising.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075f95b0b87e---36227461589.pdfIn PDF document text
    • https://wrd13.com/force/file/jaxujevenuwunorixabizu.pdfIn PDF document text
    • https://www.bussmann-tiefbau.de/ckfinder/userfiles/files/gilatujimufefef.pdfIn PDF document text
    • http://www.emporiocaritaspisa.it/wordpress/wp-content/plugins/formcraft/file-upload/server/content/files/160bdc82a838c3---sosirapajugenotukazabid.pdfIn PDF document text
    • http://serendipityorlando.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ba889fe8038---11671677692.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fae6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAE6 10996 bytes
SHA-256: 04e0e69d0e2f53d28505ea0b119958e9633d37554fba136d4c5b3c17e9640bf7
font_01_sfnt_off00011441.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11441 17848 bytes
SHA-256: 21fbddbdc6b09e855c3cd8296e82601ca3dd02234488bdfac14f61497fc4a980
font_02_sfnt_off00014119.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14119 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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