Malicious PDF — malware analysis report

Static analysis result for SHA-256 452221dffbdfa6b2…

MALICIOUS

PDF

89.1 KB Created: 2021-08-17 18:32:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-15
MD5: 0e15c302b3f11ce56347376b98486ee4 SHA-1: 0bc3dd57a92bfb524706e464a59f2fead3e43bd8 SHA-256: 452221dffbdfa6b29e43faf9dc4771b36d6d515619e233a6c545714f12244537
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded URLs that point to various domains, many of which appear to be compromised WordPress sites or disposable hosting. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. The presence of 'utm_term' parameters in some URLs suggests an attempt to track user engagement with deceptive content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

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://crewmak.ru/uplcv?utm_term=download+video+bts+bon+voyage+season+2+sub+indo PDF link annotation
    • https://koncnc.com/genelresimler/file/jagumajiwesodafo.pdfIn PDF document text
    • http://slanfusa.org/clients/47225/File/43102903849.pdfIn PDF document text
    • http://josephlillianmorrisfamily.com/clients/59960/File/42867821548.pdfIn PDF document text
    • https://arizonalightingsales.com/wp-content/plugins/super-forms/uploads/php/files/a2948495c92f6b02b9a25b600df8b8bb/97738525391.pdfIn PDF document text
    • http://www.iqubz.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085d6cd0d297---96367187637.pdfIn PDF document text
    • https://fsbulletsandbrass.com/userfiles/files/medenasamevolidulamowuxij.pdfIn PDF document text
    • http://leap-egypt.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085ec02d868a---2645220120.pdfIn PDF document text
    • http://auapp.ch/userfiles/files/penabuwikugu.pdfIn PDF document text
    • http://africansafaris-spain.com/FCKeditor/editor/filemanager/connectors/php/connector.php?Command=FileUpload&Type=File&CurrentFolder=%2Ffile/49770811772.pdfIn PDF document text
    • https://www.c2commercial.com/wp-content/plugins/super-forms/uploads/php/files/e57fb7a82bd90e051b4492d1311354dc/nagevipesogowa.pdfIn PDF document text
    • http://studiotecnicoforace.eu/userfiles/files/zidapul.pdfIn PDF document text
    • http://www.emailposte.com/pictures/kirogoxonag.pdfIn PDF document text
    • https://www.stamfordtaxis.com/wp-content/plugins/super-forms/uploads/php/files/cone374kg0cogo2e3564kc1gc5/62715770555.pdfIn PDF document text
    • http://madveras.com/ckfinder/userfiles/files/37460980299.pdfIn PDF document text
    • http://skolicka.eu/foto/images/file/batofapolobusin.pdfIn PDF document text
    • http://sad-azov.ru/wp-content/plugins/super-forms/uploads/php/files/12a5eaa63b9c7ec8239bb443e536f821/jilobefipukavowemosuximi.pdfIn PDF document text
    • http://sparkpro.lv/content/file/38627556880.pdfIn PDF document text
    • http://xn--49s538bo8ux8c.net/userfiles/file/28204846742.pdfIn PDF document text
    • https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/bq3388907s2kumshu193ui4e04/44662531501.pdfIn PDF document text
    • https://drivingschoolofnorthtexas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a14ec220abc---14013073345.pdfIn PDF document text
    • https://www.hed-endo.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1610d4a6c0f2d1---63377182404.pdfIn PDF document text
    • http://grawerlik.pl/userfiles/file/33975332282.pdfIn PDF document text
    • http://lapenya.cat/imgjovesnaves/file/81680829186.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dda1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDA1 18072 bytes
SHA-256: 37e4a49315d72032540bb5c4b1efa957462534504b52042ca3fd72e0e5638880
font_01_sfnt_off00010d78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D78 10948 bytes
SHA-256: f7cf6c99a2761720a6f55831d02baf6846fe8a1573e53836dbae3f305fa86107
font_02_sfnt_off000126e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x126E0 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_03_sfnt_off00013ef1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13EF1 16516 bytes
SHA-256: f626fb5d85ba2453438dbf692e5f921450c259e0ef65f7392205173800703f9e

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