Malicious PDF — malware analysis report

Static analysis result for SHA-256 00fadb11aae1919a…

MALICIOUS

PDF

112.7 KB Created: 2021-06-24 03:33:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 016e63c98526738bb98d27327796a1ea SHA-1: 72fcad504bc7d32ff7ccb4f3a0aca67cd7f502f9 SHA-256: 00fadb11aae1919aeadbaf8f48fda734cbbee73a3f42fa5a1dbcbc42a669ee25
156 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://laborke.ru/uplcv?utm_term=balli+dosham+in+telugu+pdf PDF link annotation
    • https://xn--78-6kce7dfhb9dwb.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/71e61d4aa49da1884a8895a091cad477/vogogujifijox.pdfIn PDF document text
    • https://cashofferoregon.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b864ebafa6---48562485515.pdfIn PDF document text
    • https://srldirect.com/ckfinder/userfiles/files/zuwerilojupawik.pdfIn PDF document text
    • https://deedpoll.sg/wp-content/plugins/super-forms/uploads/php/files/1053ae9e1093cea43cb657e01723f246/56048480129.pdfIn PDF document text
    • https://www.baptistenhardenberg.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160acad2603550---jedexet.pdfIn PDF document text
    • http://www.infranetltd.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f2857e5ae4---20935472136.pdfIn PDF document text
    • https://kamber.dk/wp-content/plugins/super-forms/uploads/php/files/bae94eec0fb60f7ecbf0d0a5a4366f5c/likujevub.pdfIn PDF document text
    • https://www.peeryhotel.com/wp-content/plugins/super-forms/uploads/php/files/72083f6854a363fb2cfda84656b549c3/7635539973.pdfIn PDF document text
    • https://theemperorsoldclothes.co.uk/wp-content/plugins/super-forms/uploads/php/files/pvom9sh1l8kh5t9oh8levv2kiq/77366848325.pdfIn PDF document text
    • http://biaikatolikus.hu/files/file/wixowibupek.pdfIn PDF document text
    • http://riph.pl/userfiles/file/vitujibaxebiwawezim.pdfIn PDF document text
    • http://averon.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160a436ad56678---48611099000.pdfIn PDF document text
    • https://brokenspoke.com/wp-content/plugins/super-forms/uploads/php/files/f20c5cb8c0a14ab337d386bf9a952e0d/fajobizig.pdfIn PDF document text
    • http://rustproofingottawa.com/userfiles/file/jiritibisusefex.pdfIn PDF document text
    • https://alsterparkett.de/wp-content/plugins/super-forms/uploads/php/files/fj8uvv62eg758bovgcvmn116mt/67647274649.pdfIn PDF document text
    • https://relaxationplusmn.com/wp-content/plugins/super-forms/uploads/php/files/7a99c763555661612c8d017da114847b/19770806214.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • http://kioskcondoweb.wpengine.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b0351e0a85---90425085382.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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001063f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1063F 5408 bytes
SHA-256: 74012504bd19ee49f57fd594c8d8a9281218e66e62994f6e78107d1ea8f87822
font_01_sfnt_off00011886.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11886 66412 bytes
SHA-256: c97107adc22153c673fb677cb331005abe3c94e7847e465e3823d93de4ab563f
font_02_sfnt_off00018d97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18D97 10892 bytes
SHA-256: 7d9c433c5b6cba4dbc4e678389579b7f02d2564e921643c6796f23b07a265be5

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