Malicious PDF — malware analysis report

Static analysis result for SHA-256 84046acf58d4a21b…

MALICIOUS

PDF

69.3 KB Created: 2021-06-11 08:43:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: 0e0d60dd0ab4613d97c3291909035748 SHA-1: 4d583aa5517d0729fd17554802a1a76eccd5ffe5 SHA-256: 84046acf58d4a21bafab731815675c7964c3c71d6e40fd317182cc377cf0ebe5
154 Risk Score

Malware Insights

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

This PDF document was flagged by multiple heuristics and an ML classifier as malicious, with ClamAV identifying it as a phishing trojan. It contains numerous embedded URLs that point to compromised websites and link farms, suggesting an intent to redirect users to malicious content. The document's structure and embedded links indicate it functions as a lure, likely for phishing or to download further malicious payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9785

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://irlanc.ru/uplcv?utm_term=40000+kbps+to+mbps PDF link annotation
    • http://cukierniabrzezinski.pl/www/artizam/fck/file/21335664175.pdfIn PDF document text
    • https://www.treehousecare.org/wp-content/plugins/formcraft/file-upload/server/content/files/1606d38057aff5---vikoxapizokatam.pdfIn PDF document text
    • http://osullivanspressurewashing.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d84827b63e---sanizotavasimalogigawemu.pdfIn PDF document text
    • https://al-farh-iq.com/upload/userfiles/file/xavipegilasalowalopoxugez.pdfIn PDF document text
    • http://smithmurdock.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f2f3173d98---39373274255.pdfIn PDF document text
    • https://kindliving.org/wp-content/plugins/super-forms/uploads/php/files/tmp/janeraximufagoliw.pdfIn PDF document text
    • http://www.circoloaletrium.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607bd51fee2ee---jadowidoxedurokelus.pdfIn PDF document text
    • http://www.veronicaneal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/160889ee04c511---15191455196.pdfIn PDF document text
    • https://www.prestigeautobody.com.au/wp-content/plugins/super-forms/uploads/php/files/9129761fa2b5ec56ef30a1fd1921f17f/fitolapof.pdfIn PDF document text
    • https://alamansyria.com/userfiles/file/vosevasozije.pdfIn PDF document text
    • https://amartzon.store/wp-content/plugins/super-forms/uploads/php/files/641aada94cabe89963d06d3585daa259/derivanemuzinajefirojo.pdfIn PDF document text
    • http://reiki-roots.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160780deb99b98---26440951922.pdfIn PDF document text
    • https://flycam.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1609178922e708---90306060948.pdfIn PDF document text
    • https://glowskincare.net/wp-content/plugins/super-forms/uploads/php/files/516d043112ad4e32c8705ba72655a027/33479588260.pdfIn PDF document text
    • https://sakitonus.ru/wp-content/plugins/super-forms/uploads/php/files/f1458954e8381eccb6d1ba5c4e694f61/pidapegaxiribukelififemej.pdfIn PDF document text
    • http://bilmatbasim.com/userfiles/file/82988753184.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e1fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1FB 4968 bytes
SHA-256: b2e81080dfa7271db10f04cb43f2cb432b56376c4b5adf3cc557f4286154a324
font_01_sfnt_off0000f2d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2D5 11292 bytes
SHA-256: a5efb8c5449c36a386f0e34f199ea63253cfda5ddb3077709370a958868261d1

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