Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce0e42cf3bd183ea…

MALICIOUS

PDF

87.5 KB Created: 2021-07-01 19:06:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-13
MD5: 3f2983ad9981100ae68db43681f72f75 SHA-1: a7b9a2cb96c66ce690cc38ee56c50b5282c73517 SHA-256: ce0e42cf3bd183eaacc78087344220e5e7b42d9de298c1ab017a73606ee896a6
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many of which point to compromised websites or are structured as link farms, suggesting an attempt to redirect users to malicious content or phishing pages. The presence of PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics further supports this. Although no scripts were directly extracted, the nature of the embedded URLs and the detection signatures indicate a phishing or malicious redirection attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9835

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 http://badischer-kunstverein.de/ckfinder/userfiles/files/89086413062.pdf In PDF document text
    • http://riskhedgetech.com/uploaded/file/203314110360d926fd77935.pdfIn PDF document text
    • http://furkansigorta.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1608404649d87f---8636887569.pdfIn PDF document text
    • https://nnkcreations.com/userfiles/file/binubevagalir.pdfIn PDF document text
    • http://svs-pm.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072d2fd793fb---77079169058.pdfIn PDF document text
    • https://aftaplan.com/works/peepsparty/html/upload_files/file/pevutuzopimozujadi.pdfIn PDF document text
    • http://promocode.lu/userfiles/files/80959331348.pdfIn PDF document text
    • http://lbs.ac.at/wp-content/plugins/super-forms/uploads/php/files/ut4fb52o3f4jti97kd7ohinja0/60976194868.pdfIn PDF document text
    • http://www.saraviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/16095ff008f179---tujojakivejexivagisowi.pdfIn PDF document text
    • http://www.ponderosafestival.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f0e9b927ae---zimasakosiwirajuripulafas.pdfIn PDF document text
    • http://kapelski.pl/userfiles/file/rokibitidopatagujarekevol.pdfIn PDF document text
    • https://brusroom.com/wp-content/plugins/super-forms/uploads/php/files/f52916a2493aa93841e3c1e8a3563caa/pagesuxuzisototoxogit.pdfIn PDF document text
    • http://www.hotel-margherita.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd7284f0ff8---12333984458.pdfIn PDF document text
    • https://georgiamusicpartners.org/wp-content/plugins/super-forms/uploads/php/files/99a3ea35abd8fe0efd07c1ff2b69c364/zibepifezujejape.pdfIn PDF document text
    • https://www.zulilighting.com/wp-content/plugins/super-forms/uploads/php/files/139a1702e6bac6f3c33c63ddaff5cbf1/jajekoxat.pdfIn PDF document text
    • https://iwnta.com/userfiles/file/32327571590.pdfIn PDF document text
    • https://penzionradvanice.cz/res/file/sazevepatebukeligazizis.pdfIn PDF document text
    • http://bioterapiazabiegi.pl/obrazy/file/vibubowoxifolegaxagejoso.pdfIn PDF document text
    • http://www.zav-mito.si/wp-content/plugins/formcraft/file-upload/server/content/files/160bf4ba29efa7---37857671720.pdfIn PDF document text
    • http://arci-mp.fr/admin/File/tazapu.pdfIn PDF document text
    • http://sportgalaktik.sk/userfiles/file/55477874935.pdfIn PDF document text
    • https://evenimentecastel.ro/wp-content/plugins/super-forms/uploads/php/files/s1n717hd8e8s7q14ve266ltued/fazefefixadasedevuk.pdfIn PDF document text
    • https://deedpoll.sg/wp-content/plugins/super-forms/uploads/php/files/48b1a39b332c921ce1308efe95bf92d7/bejeguxesevudisewilokore.pdfIn PDF document text
    • http://arcdesantmarti.com/biocop/Images/images-editor/file/wapuropozuvogijokofado.pdfIn PDF document text
    • https://www.olympusnorge.no/wp-content/plugins/super-forms/uploads/php/files/7cmqkbk1ag63kagojfoavp4r9t/55479037188.pdfIn PDF document text
    • https://alphacleanwashing.com/wp-content/plugins/super-forms/uploads/php/files/8bac60fd720c778a668afdec8a7a01f2/tikuj.pdfIn PDF document text
    • http://joshuadacosta.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c23ff75c281---84929761825.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=cooking+city+mod+apk+unlimited+money+and+gemsPDF link annotation
    • 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_off0000f0bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0BC 17452 bytes
SHA-256: f98a1e07307e473bac0c02f149efc8b5783edef404be9f520287c139754f983f
font_01_sfnt_off00011e46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11E46 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0001365d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1365D 11092 bytes
SHA-256: c2bd0278c0f9d7a377f84cd53e6cfee50903fa37b34179e0d90c066024267afa

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