Malicious PDF — malware analysis report

Static analysis result for SHA-256 b36f794bb05c477c…

MALICIOUS

PDF

72.8 KB Created: 2021-02-15 17:36:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: bd54465d92a8b74b868bf32d16267802 SHA-1: 165499fb555baea9d08baf301a00d9a9b8100a02 SHA-256: b36f794bb05c477c529efaf1f9346be7ac6817f6a618815d7ebe1e0902daeec4
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that redirects to a phishing site disguised as a vehicle sale listing. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. No scripts were extracted, but the presence of an external URI and the overall detection profile suggest a phishing attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://jottigo.ru/123?utm_term=honda+express+sr+for+sale PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4427284/normal_601ffd261c91b.pdfIn PDF document text
    • http://bilkaita.space/41714191725w5fzz.pdfIn PDF document text
    • http://aires.fun/microsoft_advertising_account_numberlrcjq.pdfIn PDF document text
    • http://quickstore.pro/reckless_racing_2_pc8inb7.pdfIn PDF document text
    • http://itsnat.space/ikea_desk_chair_matazio1.pdfIn PDF document text
    • http://pro-komp-master.website/kokatewowasepiwiriburpi837.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402000/normal_600e394944ed5.pdfIn PDF document text
    • http://dmgameplan.com/addition_and_subtraction_worksheets_2_digit_numbers0jh5y.pdfIn PDF document text
    • http://podeves.xyz/telarexuxofbr8i.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446045/normal_601faf4673401.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/sinamozagemoger/ropupirugikomelawomo.pdfIn PDF document text
    • https://s3.amazonaws.com/tezude/chalana_churire_chirilu_hrudaya_odia_song.pdfIn PDF document text
    • https://s3.amazonaws.com/vibuvomomuv/hd_video_wallpaper_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/jujojomojemiz/jifetomasitok.pdfIn PDF document text
    • https://s3.amazonaws.com/xowasosuf/hello_neighbor_mod_apk_full.pdfIn PDF document text
    • https://s3.amazonaws.com/dikobepibelun/whatsapp_status_malayalam_mp4.pdfIn PDF document text
    • https://s3.amazonaws.com/lokijuronig/korewunexexedideboliluvig.pdfIn PDF document text
    • https://s3.amazonaws.com/xamibudasagas/xawemenubo.pdfIn PDF document text
    • https://s3.amazonaws.com/setaxilitozuko/synonyme_und_antonyme_deutsch.pdfIn PDF document text
    • 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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e088.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE088 5064 bytes
SHA-256: c3898b7f547bed148ba60bf8b9dd674d156035021c7701d378535d54b8f8d669
font_01_sfnt_off0000f1d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1D1 10624 bytes
SHA-256: 27c0d51f0e58cdf92accd52f67cdccd4f828d3c06bb6f7fdba80485e2bccf0ce