Malicious PDF — malware analysis report

Static analysis result for SHA-256 20d14416fefceb37…

MALICIOUS

PDF

71.7 KB Created: 2021-02-25 02:39:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 27385f238927cdf5d62ca66d00d6e9aa SHA-1: b3d64a4e38ddf491c3b64d96924f64ec75bc61ea SHA-256: 20d14416fefceb37cb11e278794c755939cc9e538c47b3b7a2cf371677d80155
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://jacksth.ru/aws?utm_term=timex+nature+sounds+clock+radio+manual PDF link annotation
    • https://cdn.sqhk.co/ripalufix/cLciggi/kedakewe.pdfIn PDF document text
    • https://cdn.sqhk.co/zetikitor/gj281jh/best_fighting_games.pdfIn PDF document text
    • http://dulexip.22web.org/basic_exponent_properties_worksheet_algebra_2.pdfIn PDF document text
    • https://betutemibo.weebly.com/uploads/1/3/1/4/131453998/5526490.pdfIn PDF document text
    • https://cdn.sqhk.co/vawadawuleja/gWDTjhK/megan_thee_stallion_ig_live_post.pdfIn PDF document text
    • https://xurebutira.weebly.com/uploads/1/3/2/6/132681359/visizanubim.pdfIn PDF document text
    • http://beviluxenumiliv.mywebcommunity.org/kidde_i4618_firex_hardwired_smoke_alarm_with_battery_backup_manual.pdfIn PDF document text
    • https://jawoxufogor.weebly.com/uploads/1/3/6/0/136022219/vajekifojapokofikes.pdfIn PDF document text
    • https://cdn.sqhk.co/towevefizub/dxEhcjd/xarojumomodowotekamolux.pdfIn PDF document text
    • https://cdn.sqhk.co/madagijoj/jagjg6C/skylanders_imaginators_xbox_one_download.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://karudopinu.rf.gd/sears_kenmore_elite_washer_owners_manual.pdfIn PDF document text
    • http://vorisenunajix.myartsonline.com/cisco_sg300_default_setup.pdfIn PDF document text
    • https://s3.amazonaws.com/fisulefajow/viragevisowovar.pdfIn PDF document text
    • http://kavotipuwevir.epizy.com/gusamel.pdfIn PDF document text
    • http://gerifanonejuvad.rf.gd/formwork_carpenter_jobs_ireland.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_off0000da67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA67 5164 bytes
SHA-256: 78af5bb2dd4f4a77474c29914948432e37ad75d81a4dceb133129d137f2d3de9
font_01_sfnt_off0000ebe3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBE3 11204 bytes
SHA-256: a2c7d0f138bf8d01aa963f63c2658a6c12efac13497ddaec0e1e0673b143bccf