Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4365c87a2dc6da7…

MALICIOUS

PDF

71.2 KB Created: 2021-02-13 23:05:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 11c5ad120693729b350e9e9cb5811b89 SHA-1: a725540c4ac4e498520d41e1fee409f0e3cc7dc2 SHA-256: d4365c87a2dc6da787ab02c297502b1af40ea033b9a271ef3ba05feb737c715a
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://druttle.ru/wix?keyword=august+15+2020+sunset PDF link annotation
    • http://helpverifybadges.com/623401892559aiu4.pdfIn PDF document text
    • https://patewowuxafopon.weebly.com/uploads/1/3/4/5/134595548/xiramonis.pdfIn PDF document text
    • https://cdn.sqhk.co/pofoxubo/bieIgfO/67732732196.pdfIn PDF document text
    • http://hellesypakk.online/christmas_candy_gramslikj3.pdfIn PDF document text
    • http://medyayazilimtr.com/615613737459ek85.pdfIn PDF document text
    • https://cdn.sqhk.co/fabupiguboxa/fgiihgi/mediaf_re_download_games.pdfIn PDF document text
    • http://jodesomuxuduzu.22web.org/speed_booster_simulator.pdfIn PDF document text
    • https://nelemiken.weebly.com/uploads/1/3/4/7/134704654/9576003.pdfIn PDF document text
    • http://rimka.xyz/97956106212jpr1e.pdfIn PDF document text
    • https://labelamujevodit.weebly.com/uploads/1/3/1/6/131606697/3668406.pdfIn PDF document text
    • http://copyright-helps-team.com/bangla_golper_boi_free_downloadrs1a5.pdfIn PDF document text
    • http://tradebot.space/war_of_1812_timeline2zjuj.pdfIn PDF document text
    • https://zapineri.weebly.com/uploads/1/3/4/7/134707132/3056884.pdfIn PDF document text
    • https://gosawopidelogeb.weebly.com/uploads/1/3/4/7/134714887/f3f244d973753.pdfIn PDF document text
    • https://cdn.sqhk.co/sebutarukaw/fFvjfZe/play_lego_ninjago_masters_of_spinjitzu_games_online.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://luxepiluwi.epizy.com/94100179604.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_off0000dc01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC01 4956 bytes
SHA-256: 94ed94e57c0f78cf0c0b9885e7a3425211da1baeac2a23de151f1487a8e3d6cf
font_01_sfnt_off0000ed0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED0C 10276 bytes
SHA-256: 4076b4baff497d9a90ebafcc2160fddeca9f6bd471366cf1dde7394ec11668d9