Malicious PDF — malware analysis report

Static analysis result for SHA-256 00e0ddafc6f14392…

MALICIOUS

PDF

86.4 KB Created: 2021-06-27 15:01:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-15
MD5: a41897d4b0ab92ab0694003df5d4480a SHA-1: 5202f3e7fe7e4158a1a004eeb5df74972471c959 SHA-256: 00e0ddafc6f14392c3e3e402a40e1969f156a4c70faab7985ab8f79df5050faf
196 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1539 Steal or Forge Credentials

This PDF document is identified as malicious by ML classifiers and ClamAV, and exhibits characteristics of a credential phishing lure. The heuristic 'SE_MFA_LURE' indicates the document is designed to harvest one-time codes or MFA approvals, consistent with stealing session tokens or abusing multi-factor authentication. The numerous embedded URLs pointing to compromised CMS upload storage and disposable hosting further support its role as a phishing distribution mechanism.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9952

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
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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://sellos-mecanicos.com/wp-content/plugins/super-forms/uploads/php/files/2b0bf390313a62364ab6b53ea0b8e8a7/15566858976.pdf In PDF document text
    • http://younewstoday.com/task/userimages/file/ribupodasemunemezusiw.pdfIn PDF document text
    • http://www.lightingandhvacexpo.com/wp-content/plugins/super-forms/uploads/php/files/0779541e46232cfc52841940c3099a10/nomupodigal.pdfIn PDF document text
    • https://edoxmarketing.com/wp-content/plugins/super-forms/uploads/php/files/jvjq3lshpf57j8paf6t3icdn99/retubopabi.pdfIn PDF document text
    • http://adoriantarla.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160a7656179418---duverezufomanekinobo.pdfIn PDF document text
    • https://prikolnaya.com/wp-content/plugins/super-forms/uploads/php/files/0e7f774e87d59930fbc829cfbad781aa/wopusizurelunexiviw.pdfIn PDF document text
    • https://haps.company/wp-content/plugins/super-forms/uploads/php/files/epop7hn3oefvd3nh2ni01tcoo7/72683909718.pdfIn PDF document text
    • http://lawcab.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160af5da5b3c08---25523533398.pdfIn PDF document text
    • https://khanikango.in/file/dewanovunaruga.pdfIn PDF document text
    • http://snookerfootball.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160c6b5f9c3786---79556773564.pdfIn PDF document text
    • http://www.kzhep.in.ua/wp-content/plugins/super-forms/uploads/php/files/mhq1iqr84rr5ssvmcq3et79mv1/76866397840.pdfIn PDF document text
    • https://realwebguys.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078881c33bb6---43841649394.pdfIn PDF document text
    • http://worldwidefilipinoalliance.com/uploadedFiles/files/6590890896.pdfIn PDF document text
    • http://www.sensible-seeds-premium.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607751f5dd272---babexomabep.pdfIn PDF document text
    • http://afghansolar.com/userfiles/file/nadirexutuf.pdfIn PDF document text
    • http://vietthanhstone.com/images/news/file/kapaxoguzuvefadiwitodobix.pdfIn PDF document text
    • https://mziagroup.com/wp-content/plugins/super-forms/uploads/php/files/3bcgdcfgq7pa7k49q5usaalktb/63807031191.pdfIn PDF document text
    • https://fnb-concepts.com/images/uploads/files/10250462692.pdfIn PDF document text
    • http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/md8dpll38tckght4fu6ddd5594/jiwibolodi.pdfIn PDF document text
    • https://thegioibaobicarton.com/Images_upload/files/14407417414.pdfIn PDF document text
    • https://2greenchicks.com/wp-content/plugins/super-forms/uploads/php/files/b151eea43dc4c8019bd0b374a6116326/zolixaxufiwoxa.pdfIn PDF document text
    • http://orsolyajuhasz.com/ckfinder/userfiles/files/virakavumeda.pdfIn PDF document text
    • http://adhdadvisory.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b704b882f8d---9362516218.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=asus+1900+router+manualPDF 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_off0000e13d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE13D 10600 bytes
SHA-256: 4a8018a44354d9982818661adb28bad061f45a157027e38e4cc75f02e2bf14a7
font_01_sfnt_off0000f988.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF988 28740 bytes
SHA-256: 371bae55221aef45ae469b187d5a472aaa3ea3277c43ac11b16ad4078e012186
font_02_sfnt_off000132bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x132BF 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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