Malicious PDF — malware analysis report

Static analysis result for SHA-256 0fe301ce59c12de6…

MALICIOUS

PDF

82.8 KB Created: 2021-08-29 09:51:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-29
MD5: 6842f786b9cdaf06a18383b9c58916cf SHA-1: 4d78bf50872bc8dbe2e32c764c7cffc55a565248 SHA-256: 0fe301ce59c12de662d0c401973c4d7c0a0013d33b2d47b188dcb69150321c87
156 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, presenting numerous URLs that redirect to potentially compromised WordPress upload directories or other disposable hosting. This pattern is commonly used to obscure the final malicious destination, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9983

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://nnhs1964.com/clients/a/a2/a2d7b74ded15306de89ee4bbe2f7ed3f/File/41149725462.pdf In PDF document text
    • https://szud94.hu/img/sajatfile/files/xirawulesirorutenuvowim.pdfIn PDF document text
    • https://o2opr.co/userfiles/files/zafazur.pdfIn PDF document text
    • https://bowenpainter.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ba4a2f7235b---34166584138.pdfIn PDF document text
    • https://messianic.live/wp-content/plugins/super-forms/uploads/php/files/b2ce237fd2721d1f35f876922f502176/zopitibigevoxipewad.pdfIn PDF document text
    • http://uptownchantilly.com/uploads/files/56480611564.pdfIn PDF document text
    • http://texmet.pl/userimages/file/bigod.pdfIn PDF document text
    • http://thm-holding.ru/wp-content/plugins/super-forms/uploads/php/files/1adfebb1027be00e36e6a881c3274d7b/66207328497.pdfIn PDF document text
    • https://www.yoursurveysurveyors.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16091117bc3d68---24699321497.pdfIn PDF document text
    • http://gerd-pollak.de/userfiles/file/86809293983.pdfIn PDF document text
    • https://riverasphotovideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611875c62e842---52765170089.pdfIn PDF document text
    • http://gerd-pollak.de/userfiles/file/3467422098.pdfIn PDF document text
    • https://utilitydiscount.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099c6a76b8e1---41195223369.pdfIn PDF document text
    • http://mimarkamilozkartal.com/userfiles/files/gizotuxisafadimamajibiver.pdfIn PDF document text
    • http://studioarchperissinotto.eu/userfiles/files/dakifojakagoz.pdfIn PDF document text
    • https://medgarlci.com/wp-content/plugins/super-forms/uploads/php/files/7709cd986130c3c1554df8740b646619/51876289832.pdfIn PDF document text
    • https://lashmakerpro.it/wp-content/plugins/super-forms/uploads/php/files/a3tkeak779rbbugen0h70ve9l0/59607290655.pdfIn PDF document text
    • http://alsumiri.net/wp-content/plugins/super-forms/uploads/php/files/7440f5349206ed34caaf6ca2d687bf16/52083227814.pdfIn PDF document text
    • http://coimbra.hu/uploads/ckfinder/userfiles/files/97256815578.pdfIn PDF document text
    • https://canvasations.com/wp-content/plugins/super-forms/uploads/php/files/6e85udskf8ie65ig8dbfdgoe51/pefewuvomaliriralexadosi.pdfIn PDF document text
    • http://kaizenlife.com/ckfinder/userfiles/files/rudupiburoda.pdfIn PDF document text
    • http://gewald.ru/content/Files/57118327392.pdfIn PDF document text
    • https://thingstodobahrain.net/ckfinder/userfiles/files/531737164.pdfIn PDF document text
    • http://www.theflightfest.com/wp-content/plugins/formcraft/file-upload/server/content/files/16108011f7601f---kosuzedoxufog.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=to+have+a+chip+on+your+shoulderPDF 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

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_off0000dab4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAB4 10756 bytes
SHA-256: c34f770fcc979d7cb704b00730f5095763191e35431c7e1683923149f6b33721
font_01_sfnt_off0000f367.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF367 18848 bytes
SHA-256: fdd2190aa47b534c89088c802436e1e1d8c340a360f31a0ba51804e69f99519c
font_02_sfnt_off00012442.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12442 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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