Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6bf7155f8a77c7a…

MALICIOUS

PDF

56.4 KB Created: 2021-05-20 15:24:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f71d4de48a371ef2b2773b82c633afcc SHA-1: f17d4a883f11f0b6a5cf46fc27687d17fcff381b SHA-256: d6bf7155f8a77c7a8b675289076527479cf2caa582adba6dc495ca66fa68a590
154 Risk Score

Malware Insights

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

This PDF document contains numerous links to compromised websites, likely intended to host malicious content or phishing pages. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body's mention of 'Powerhorse 9000 generator parts' serves as a lure to direct users to these compromised sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8253

Heuristics 5

  • 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
  • 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://alituncer.com/userfiles/file/dipugos.pdf
    • http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/een7vtfkqkjjg9la15jja9okp5/xefidibagowo.pdf
    • https://certifiedmoversinc.com/wp-content/plugins/super-forms/uploads/php/files/0dd463f118e0c51c852b2df33431c561/14727962367.pdf
    • https://hps-gruppe.com/wp-content/plugins/super-forms/uploads/php/files/4q16a353sjb2d4lhpmdqtgoqcm/pokidosebidemukip.pdf
    • http://extreamtuning.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1608d6aac4c2b4---65949551030.pdf
    • http://allprintusa.com/admin/images/file/4200654683.pdf
    • http://lirealestatelitigator.com/wp-content/plugins/super-forms/uploads/php/files/3bcc9f1d1b8994502c54941156d77592/fiwelowexaboni.pdf
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608bfedb3d488---12602372326.pdf
    • http://www.ambredore.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a249268a864---29743335297.pdf
    • https://stpetejazz.com/wp-content/plugins/super-forms/uploads/php/files/pv3vbs2jjvar98fdjrlmi771n8/nefaxuromafamibegunuk.pdf
    • http://exactblue.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609be3a4d8fb1---satuwipixakofamafeloz.pdf
    • http://allegroescrow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099fb489ad2f---91514280586.pdf
    • http://www.fattyweng.com.sg/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc1d93ed8b---lovunivevogifubibojotafas.pdf
    • https://ifacemount.com/wp-content/plugins/super-forms/uploads/php/files/s1md8dtgmar3a10vgq75ph32qt/43159730850.pdf
    • https://sakitonus.ru/wp-content/plugins/super-forms/uploads/php/files/edc0dfe7090c593f5f81301e61641188/vowofo.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=powerhorse+9000+generator+parts
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c8da.bin
c47f1ce55a2dbc926304e7b2e5cc7705e2140b26701dd7b4879cf179565794da		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC8DA 5180 bytes

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