Malicious PDF — malware analysis report

Static analysis result for SHA-256 315b20181a0a6e3d…

MALICIOUS

PDF

70.0 KB Created: 2021-02-12 12:47:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 70dbdc481b0a5a4b8b374f4f515c4e9f SHA-1: 1ce7b1463a364dafe1ac039be2de5cec2351a98a SHA-256: 315b20181a0a6e3db9775cf99a478075b3e381ce849ebcffb568db1a47122422
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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://leonvi.ru/wb?keyword=total%20coliform%20bacteria%20test%20kit PDF link annotation
    • http://ag-management.space/78165177693j5x6t.pdfIn PDF document text
    • http://bioforce-co.site/samsung_tablet_voice_assistant_turn_offfyzuz.pdfIn PDF document text
    • https://cdn.sqhk.co/xedogigiloli/igcihTl/doctor_on_demand_stock_price_today.pdfIn PDF document text
    • https://cdn.sqhk.co/gotakavapu/hh4jdji/roblox_studio_local_scripts.pdfIn PDF document text
    • http://bamejudodenor.iblogger.org/bully_apk_obb_mod_money.pdfIn PDF document text
    • https://cdn.sqhk.co/logubaxe/ghhjij8/8923510074.pdfIn PDF document text
    • https://cdn.sqhk.co/varaxupumami/dG6pjeu/xmeye_pc_windows_7.pdfIn PDF document text
    • http://bumadodari.iblogger.org/cet_key_answers_2019_pcmb.pdfIn PDF document text
    • https://cdn.sqhk.co/bosesegivu/gjhzgjU/pudegi.pdfIn PDF document text
    • http://blablablacar.online/lokudawenaxluxvn.pdfIn PDF document text
    • http://org-fruit.space/tovimadikafexajumakobenw5w9o.pdfIn PDF document text
    • https://cdn.sqhk.co/gesimefav/ihcx1ha/vatalofubefafisefojilepe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tuxusar.epizy.com/itunes_for_windows_10_installer.pdfIn PDF document text
    • http://govetijedofesol.rf.gd/podolozeluwov.pdfIn PDF document text
    • https://s3.amazonaws.com/nigimul/bhojpuri_film_song_video_hd.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_off0000d561.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD561 5180 bytes
SHA-256: 0fa499cd88759aa855ecff9a81a983ea3621467e5420937e8eb5879d65b1f51e
font_01_sfnt_off0000e6ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6EE 10860 bytes
SHA-256: 8032b024669155b8caac93daf495d54391fdbacf21c49422bfeff880f0b076d9