Malicious PDF — malware analysis report

Static analysis result for SHA-256 6294e6c5fe067dbe…

MALICIOUS

PDF

94.6 KB Created: 2021-08-29 19:22:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07
MD5: 3ddcbc8b200801b5c99eafa5239e7006 SHA-1: 3b630e32d30a4095df84256f5f2c00d63e7709d9 SHA-256: 6294e6c5fe067dbe5e16dafc13f38a3debc0669eed91096ed1fcc1159f717955
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The ML classifier and ClamAV detection strongly indicate maliciousness. The PDF contains numerous external links, many pointing to compromised CMS uploads or disposable hosting, suggesting a phishing or malware distribution scheme. The presence of PDF-specific heuristics like 'PDF_URI' and 'PDF_SEO_DISPOSABLE_LINK_FARM' further supports this attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

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://smidgel.ru/uplcv?utm_term=the+american+conjuring PDF link annotation
    • https://digireg.sk/upload/jupidajixobogewog.pdfIn PDF document text
    • http://xn--49s538bo8ux8c.net/userfiles/file/42693386103.pdfIn PDF document text
    • http://mognational.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608cf18aa1bf0---85216714661.pdfIn PDF document text
    • https://insolite.lu/img/userfiles/files/34990780531.pdfIn PDF document text
    • http://designklasse.de/ckfinder/userfiles/files/44512696650.pdfIn PDF document text
    • https://cuisinescartier.ca/upload/editor/file/55033069858.pdfIn PDF document text
    • http://duocmyphamcongty.com/app/webroot/uploads/files/69031027263.pdfIn PDF document text
    • https://www.taxikladis.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1607f243b85ad4---67719614612.pdfIn PDF document text
    • https://kayakbranson.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f00d9607234---nasafinuxekarujapifiret.pdfIn PDF document text
    • http://melly-incendie.fr/img_db/16786627597.pdfIn PDF document text
    • http://sieuthibongda.net/ckfinder/userfiles/files/11528522335.pdfIn PDF document text
    • http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/kvca72fcadu1ic7gerictl3ri0/12248061345.pdfIn PDF document text
    • http://www.temaricerca.com/entry2013new/admindia/ckfinder/userfiles/files/47608303405.pdfIn PDF document text
    • http://silesiacapital.eu/data/file/rufaginabijoroxuli.pdfIn PDF document text
    • http://sieuthicayxanh.vn/webroot/img/files/jusofewetedutafimut.pdfIn PDF document text
    • https://www.accidentinjuryalbuquerque.com/wp-content/plugins/super-forms/uploads/php/files/k1abj15072o95b5oo6r61pukfm/85984839680.pdfIn PDF document text
    • http://betheaskssd.com/flash/betheaskssd.com/file/38355632282.pdfIn PDF document text
    • https://118highschool.am/wp-content/plugins/super-forms/uploads/php/files/19d779c10af5f2bf1f84d46653a309bf/43638604932.pdfIn PDF document text
    • http://tantex.org/tantex/tantexuserfiles/file/13861350352.pdfIn PDF document text
    • https://www.officinadelgustoroma.com/wp-content/plugins/super-forms/uploads/php/files/ef5c2d64959426aef016dbe069cb2bd9/49064369045.pdfIn PDF document text
    • https://tecsal.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160872bcb7bcb1---9332039997.pdfIn PDF document text
    • https://yziact.fr/wp-content/plugins/super-forms/uploads/php/files/dhg73812spvacdcidtopnevj0e/bekerizikorubovew.pdfIn PDF document text
    • https://secolink.sk/userfiles/file/70072020579.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010b56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B56 10556 bytes
SHA-256: 4de3ee965514b1003f9c3d76c44a6fefa3dc733e7e22cf4c284f8a00da1b36e1
font_01_sfnt_off0001231b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1231B 18636 bytes
SHA-256: 543e52de204edbf964a3747d5221d72602eca5a672bcbd44ba03851a79759fa0
font_02_sfnt_off000153f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x153F1 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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