Malicious PDF — malware analysis report

Static analysis result for SHA-256 5952596ec915a5f7…

MALICIOUS

PDF

74.2 KB Created: 2021-02-09 19:43:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 9d5a16db9442cc7d5b5f8ea27c445218 SHA-1: cfffc251c362b2484777d0d2993e06c9e46fc713 SHA-256: 5952596ec915a5f71a92d5c13e127e971b27462062827010175152b912082350
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://bologen.ru/123?utm_term=gta+sa+cleo+mods+file PDF link annotation
    • https://cdn.sqhk.co/modajili/gjioibM/hangman_movie_2017.pdfIn PDF document text
    • https://sujujiga.weebly.com/uploads/1/3/1/3/131379538/kefodifabivudi-zepokam.pdfIn PDF document text
    • http://lnstagramverifiedsbadgeform.com/bazegokuzesagajf7um.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463532/normal_5fdbb846085f7.pdfIn PDF document text
    • https://rulafowobunafo.weebly.com/uploads/1/3/5/3/135391395/f72216545cfaf42.pdfIn PDF document text
    • http://dfds.in/argatroban_monitoring_guidelinesheid4.pdfIn PDF document text
    • https://cdn.sqhk.co/dakuwuwuzije/hjBCqZ3/caregivers_jobs_hiring.pdfIn PDF document text
    • http://edevletorg.com/bedwars_map_ps4s6e5v.pdfIn PDF document text
    • https://cdn.sqhk.co/zanotunuzi/X7QnjaK/69506177114.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4372383/normal_5ff280c6bab7d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470841/normal_5fec6a31009f1.pdfIn PDF document text
    • http://deemonatrafik.xyz/bangla_old_song_audio_album6b6a8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414848/normal_601868314013a.pdfIn PDF document text
    • http://wowit.pro/kifegepudq1o86.pdfIn PDF document text
    • https://fotiterik.weebly.com/uploads/1/3/5/3/135328456/6763626.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000e4a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4A3 5100 bytes
SHA-256: 11aa3946016709785058d877e89fa02ce44eaf1f5db772f1c1f65a3b25d06281
font_01_sfnt_off0000f5f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5F2 11260 bytes
SHA-256: 8c5c5adccde11ab8f1a6dd35bded662c34f01211054ff607185c8678a57efd9c