Malicious PDF — malware analysis report

Static analysis result for SHA-256 d909f03d9ea48d1d…

MALICIOUS

PDF

69.4 KB Created: 2021-02-21 12:18:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: f3b82b066687b61d23d8aab9c809e9f2 SHA-1: 1101a337bc453c313f42aed20872908d744207a0 SHA-256: d909f03d9ea48d1db979807f46ce55d62a9f78764dbbb682ca1d9329e2449356
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • 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
  • 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://druttle.ru/wix?keyword=i+understood+that+reference PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4383444/normal_603173b14e50c.pdfIn PDF document text
    • http://djami.ru/fujitsu_halcyon_dc_inverter_thermostat_manualonwj0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405651/normal_5fecb9dcc106e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478946/normal_5fe4d37722976.pdfIn PDF document text
    • http://goodsfor.life/54450878701dogn3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467560/normal_60121b18f1152.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412378/normal_6007c4b8ce2df.pdfIn PDF document text
    • http://uscovidcharts.com/35887012894dxi6l.pdfIn PDF document text
    • http://renijulemigato.iblogger.org/beamng_drive_crashes_android.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451023/normal_60161e497b0e5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402503/normal_5fe51673c7217.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369631/normal_5fd3bcf874267.pdfIn PDF document text
    • http://cmb-societe.com/free_printable_mailing_labels_templatesv2oxv.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449629/normal_602178b52fbac.pdfIn PDF document text
    • http://copyright-security-ig.com/girlfriends_guide_to_divorce_phoebe_styleuvx5q.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/pegek/26325413141.pdfIn PDF document text
    • https://s3.amazonaws.com/xisakazelelinim/best_answer_to_reject_a_job_offer.pdfIn PDF document text
    • http://notufexunu.rf.gd/18952534828.pdfIn PDF document text
    • https://s3.amazonaws.com/pazatuv/nodejs_blob_to.pdfIn PDF document text
    • https://s3.amazonaws.com/filidabut/101_dalmatians_guide_kingdom_hearts.pdfIn PDF document text
    • http://mowiredeponup.rf.gd/fekamawisulepumakemar.pdfIn PDF document text
    • http://zowomazo.epizy.com/4505016361.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_off0000d4a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4A7 5012 bytes
SHA-256: bfaf56a68db3483f68322a8fe6540c10c2ae2c71f2e9e0e1fd2b90902406d40e
font_01_sfnt_off0000e5ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5AD 10056 bytes
SHA-256: c1199e3116be64598efe9d7d5df8b51f5d351b7a1180f014d78cb1805eedaef6

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