Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6d94987fe0f851a…

MALICIOUS

PDF

62.3 KB Created: 2021-09-20 19:02:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 6488ead11355e012f5e01fba508343f1 SHA-1: 0e7764a524b6b3ea739d93782349039fd9a951b2 SHA-256: b6d94987fe0f851aa6e0ecdc5632a0d6d08b0a0f7417ba26a99c7799e2e6a16d
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains a link farm pointing to compromised WordPress sites, likely serving as a distribution point for further malicious content. The presence of external URIs and link farms suggests an attempt to lure users to malicious sites, aligning with spearphishing tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7797

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://oniceh.ru/uplcv?utm_term=android+view+text+messages+on+computer
    • http://recamonde.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161396368580d2---musizowevobabesuxa.pdf
    • https://na-nule.ru/wp-content/plugins/super-forms/uploads/php/files/ebohkpj3fig2go089lavdb6c12/robiboxe.pdf
    • http://argentum.com/wp-content/plugins/super-forms/uploads/php/files/kd2teu4hnrf6p18hmcfvm52atj/dorevunikaxitadedefesevu.pdf
    • https://inprovitperu.com/ckfinder/userfiles/files/xujamujevejetezowokane.pdf
    • https://srmhomes.com/images/bulk_images/files/63924942487.pdf
    • https://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/3453aff1aa80c57e9d81d343a4671730/tewuvukuduse.pdf
    • https://www.hed-endo.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1613181f0180c4---fetug.pdf
    • http://abwingsva.com/uploads/files/27138145840.pdf
    • http://ytbozhuo.com/upload/file/161533089933.pdf
    • https://weeb.nu/userfiles/file/85536860671.pdf
    • http://www.accl-calibration.com/login/ckfinder/userfiles/files/katinawugipepideju.pdf
    • https://limadelimon.com/images/file/13689722607.pdf
    • http://smolninskayahotel.com/userfiles/file/sedegajosob.pdf
    • http://scuderieverdina.it/scuderia/userfiles/file/negadikudot.pdf
    • http://yuhao-tech.com/userfiles/file/samofepaj.pdf
    • https://gentrilieu.vn/userfiles/file/gopeboxuf.pdf
    • http://www.frank-diagn.hu/userfiles/files/gimunomijepavaxeruzabu.pdf
    • https://travelone.ae/userfiles/files/derukufiroxodunar.pdf
    • http://chatfieldfarms101.com/userimages/funet.pdf
    • http://xn--3e0b556bhrbowi6undva.com/ckupload/files/76105358397.pdf
    • https://www.mozartcantat.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161480f6c2dfd2---41208874352.pdf
    • http://www.johnrealestate.in/ckeditor-ckfinder-integration/uploads/files/tativ.pdf
    • http://kbinteriery.cz/userfiles/file/38049700697.pdf
    • http://xn----otbbfbbknchz.xn--p1ai/sadm_files/vumegatibipasubibukovud.pdf
    • http://namhungholdings.com/uploads/ckfinder/files/walosijumaburujaw.pdf
    • http://brenno-tojestto.pl/userfiles/file/11422308967.pdf
    • https://migger.dk/userimages/file/37409324112.pdf

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