Malicious PDF — malware analysis report

Static analysis result for SHA-256 30999616d72f28b5…

MALICIOUS

PDF

70.2 KB Created: 2021-02-16 02:28:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: e49748e5c0680e12c849b7ceb67c4df7 SHA-1: e22cfabf0f1a4233dc180f288a60634b4a5e83c3 SHA-256: 30999616d72f28b51b23513e36d393124a957cd7d5e7f40d339503a772a57863
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://seumenha.ru/wix?keyword=free+cism+study+guide+pdf PDF link annotation
    • http://esmoney.site/95353559884gfk94.pdfIn PDF document text
    • http://zepawagir.iblogger.org/reporter_newspapers_atlanta.pdfIn PDF document text
    • http://balonedud.iblogger.org/51559838465.pdfIn PDF document text
    • http://vatamulejuvovi.22web.org/como_hacer_una_auditoria_informatica_ejemplo.pdfIn PDF document text
    • http://nunakazesimu.22web.org/amd_bios_update.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404124/normal_5fdb612a5d41a.pdfIn PDF document text
    • http://vnds-v.website/vafewimoredetumigu89ok.pdfIn PDF document text
    • http://madamzero.com/bunny_live_streaming_mod_apk2qx6c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407813/normal_5fdf7ee8ba6a5.pdfIn PDF document text
    • http://kprovk.xyz/fitujaxobadidijijir34un.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/petuzutemixuvod/nijokozukeboxuted.pdfIn PDF document text
    • https://s3.amazonaws.com/xufujofaleki/ghost_recon_breakpoint_weapons_guide.pdfIn PDF document text
    • http://vanudedu.epizy.com/17222770823.pdfIn PDF document text
    • https://s3.amazonaws.com/midipes/cheadle_hulme_high_school_ofsted_report_2017.pdfIn PDF document text
    • http://kepinud.rf.gd/5047001917.pdfIn PDF document text
    • http://rosuwofa.rf.gd/equations_slope_standard_form.pdfIn PDF document text
    • http://jixenefotudak.epizy.com/hey_there_delilah_sheet_music_guitar.pdfIn PDF document text
    • https://s3.amazonaws.com/zabejuvijolu/isilon_h500_datasheet.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_off0000d4e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4E0 5288 bytes
SHA-256: 19bafec0abe81e81a2ab677d03d58501034642a67fa30de45be5deb34823dbff
font_01_sfnt_off0000e6da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6DA 10804 bytes
SHA-256: d1f4cfab63af94abb51137488afee8e7be3982356bcb59547476a64a2c2cd30a