Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6321a1d5ee577e6…

MALICIOUS

PDF

80.4 KB Created: 2021-07-17 10:28:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07
MD5: 541a9919a214e5135047ec8cfab8e000 SHA-1: e26a8363dd37bb427ee83c77683ac2dda10ec5d5 SHA-256: e6321a1d5ee577e604eff4e601215e366187d4e93fe607f9456a249dfa1104ae
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a phishing or trojan threat. It functions as a link farm, containing numerous URLs that point to various websites, including those hosted on compromised CMS platforms. The primary purpose appears to be directing users to potentially malicious content or phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6051

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 https://allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/367e6a2ad0d627e791b2154c36dfdae7/458243050.pdf In PDF document text
    • https://aryaayur.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a5f6702ead---sevemipajiti.pdfIn PDF document text
    • http://waelfawzy.com/userfiles/file/53395456659.pdfIn PDF document text
    • http://mjsolankifoundation.com/fck/imagesfile/7000385042.pdfIn PDF document text
    • http://dansensvenner.dk/imagesfile///dewax.pdfIn PDF document text
    • https://www.grandeprairie.org/wp-content/plugins/formcraft/file-upload/server/content/files/1606cedc2410a6---gisoritan.pdfIn PDF document text
    • https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/a3dd1f3a273c4102342d5cab6884d8fd/mufarogadapitawabunaxiges.pdfIn PDF document text
    • http://rheumatology.institute/upload/content/file/xakanew.pdfIn PDF document text
    • https://inijariku.com/ckfinder/userfiles/files/12187817959.pdfIn PDF document text
    • http://hum-lucknow.org/test/fckeditor/file/zolavefudapasobumemaneza.pdfIn PDF document text
    • https://www.a2zmedical.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1609cbd1547dd6---darevizejo.pdfIn PDF document text
    • http://lushexperiences.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071fe1b74e95---wowixevesoxiwexodejujubu.pdfIn PDF document text
    • http://richmore.kr/uploadfile/fckeditor/file/dumuviwijunafufigo.pdfIn PDF document text
    • http://churchliferesources.org/wp-content/plugins/formcraft/file-upload/server/content/files/16088fa0423314---suzekigawuxagok.pdfIn PDF document text
    • http://sarahscupcakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074b4049a097---tapaf.pdfIn PDF document text
    • http://halongbaycruises.org/upload/files/gaguxetonejudelekewad.pdfIn PDF document text
    • http://villa-carlshorst.de/sites/default/files/file/virizoxomepakax.pdfIn PDF document text
    • http://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/16083295677157---lopodanega.pdfIn PDF document text
    • https://baohohoanglong.com/userfiles/file/65709809568.pdfIn PDF document text
    • https://www.truegridpaver.com/wp-content/plugins/super-forms/uploads/php/files/1648a811220f32c262fbeed9adbc9a37/38662147975.pdfIn PDF document text
    • https://www.acetechnology.co.in/wp-content/plugins/super-forms/uploads/php/files/v0rt4bgv8u5skdjc182odq6vfn/97159528726.pdfIn PDF document text
    • https://terlickodds.cz/www/www/fckphotos/file/regamaxirowalaf.pdfIn PDF document text
    • http://conservationenergy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a6ce6808603---98130897135.pdfIn PDF document text
    • https://marathonroller.com/userfiles/files/gorujarejomezezixirenolo.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=flyers+speaking+part+4+questionsPDF link annotation
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000112c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x112C1 10932 bytes
SHA-256: 52d4a7dbca868b420a6d6cccabb4f85ffb6425d6cebce04cbb9b30e2a22e9af3

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