Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0a5216fa893c2a4…

MALICIOUS

PDF

84.0 KB Created: 2021-09-24 08:38:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-26
MD5: 196e3acf50e1714fd2240711f210f5a1 SHA-1: 25eb2985914097b0e243540839fa642bbf2fe945 SHA-256: f0a5216fa893c2a410136e248a7e54c1833da74b50c76d80440147d800288f2e
164 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external websites, many of which are hosted on compromised CMS platforms or disposable domains, suggesting a link farm designed to distribute malicious content. The presence of a 'download button' heuristic further supports a lure-based attack pattern. ClamAV detection and ML classification strongly indicate malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

Heuristics 7

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://pixomot.ru/uplcv?utm_term=punjabi+movies+download+free PDF link annotation
    • http://6nergy.fr/6nergy/sites/default/user/file/34897170275.pdfIn PDF document text
    • https://thehamptonsbloomington.com/wp-content/plugins/formcraft/file-upload/server/content/files/161309f81bdf68---85926579038.pdfIn PDF document text
    • https://mpksieradz.pl/upload/file/41680835552.pdfIn PDF document text
    • http://topnotchimports.com/ckfinder/userfiles/files/49743801735.pdfIn PDF document text
    • https://www.dazzlingdecor.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/161434ef12e22f---82002728458.pdfIn PDF document text
    • http://pspectr.ru/userfiles/file/zagowukiwumedagepatifut.pdfIn PDF document text
    • http://wwsm-us.com/files/file/6692632547.pdfIn PDF document text
    • http://vouchertiket.com/airplane/ckeditor/uploads/files/lipawizodosota.pdfIn PDF document text
    • http://duepassidalcentro.it/userfiles/files/64544534359.pdfIn PDF document text
    • https://safrano.pl/userfiles/file/veboti.pdfIn PDF document text
    • http://chrisdepanneservices.fr/Sites/cds/files/vidodurisozenibodusopibi.pdfIn PDF document text
    • https://www.totspotdaynursery.co.uk/ckfinder/userfiles/files/gusuxukidipipofamagijab.pdfIn PDF document text
    • http://dichvuhieuchuan.com/upload/files/mizusirezisiwigesumeramaj.pdfIn PDF document text
    • http://americasbestwingspa.iorderfoods.com/uploads/files/38524951743.pdfIn PDF document text
    • https://weblative.com/wp-content/plugins/super-forms/uploads/php/files/jpdvtii71sj9thu2kkqdqhb700/47729557250.pdfIn PDF document text
    • http://sensi-leszno.pl/userfiles/file/87248910225.pdfIn PDF document text
    • https://unibel.pl/pliki/upload/file/gepup.pdfIn PDF document text
    • http://worldsocialistpartyindia.org/ckfinder/userfiles/files/vufavuboxolubedopaxisigex.pdfIn PDF document text
    • https://sapsda.org/SapmaUserfiles/file/golakuvijebufekewaxuziv.pdfIn PDF document text
    • http://mentaplywood.com/images_upload/files/sasemazovavub.pdfIn PDF document text
    • https://miguktour.com/FileData/ckfinder/files/20210919_771663F03CAC6085.pdfIn PDF document text
    • http://avalon-essenzen.at/userfiles/file/jovifaripezikabunojoxeri.pdfIn PDF document text
    • https://korovin.org/site/img_ufiles/kudofilufu.pdfIn PDF document text
    • http://obras.ru/sites/default/files/uploads/13441713442.pdfIn PDF document text
    • http://kozszemle.hu/uploads/files/72566584745.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_off0000e356.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE356 17724 bytes
SHA-256: c33d77ba4851a5f4a8178ec44a6e64ba037b4786db23881d9848af5e8e027fde
font_01_sfnt_off000110bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x110BB 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000128d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x128D2 10940 bytes
SHA-256: 12b09b4573223cf64d0ca09220368075b058f12210419665d7df060d69f3ab85