Malicious PDF — malware analysis report

Static analysis result for SHA-256 4c9c9887ce8ef54a…

MALICIOUS

PDF

72.2 KB Created: 2021-02-15 21:48:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 49b18adc344b323000463610a3252736 SHA-1: f1b28e1fd9ee39294196c2fe85d1be6a210b07ec SHA-256: 4c9c9887ce8ef54a55329a86f93c4124317e2d0b3953210149be91d02ded5dfc
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://maypoin.ru/123?utm_term=coleman+powermate+6875+owners+manual PDF link annotation
    • https://cdn.sqhk.co/fevivesuxofo/hfjjhaE/marvel_comics_shipping_this_week.pdfIn PDF document text
    • https://cdn.sqhk.co/galemojubemo/EgDRhid/free_trap_rap_instrumental_mp3_download.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405660/normal_60045066a275a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427273/normal_601341708d473.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451368/normal_60064d75059e5.pdfIn PDF document text
    • http://batut.space/83226701016zjpvk.pdfIn PDF document text
    • http://bopepon.22web.org/bed_bug_sheets_walmart.pdfIn PDF document text
    • https://cdn.sqhk.co/nezupusovefi/JhaicwQ/high_school_crush_my_first_love_game_online.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476939/normal_5ff366449d43e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462379/normal_60137749dbcb3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500001/normal_5fe9741e5f382.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403120/normal_5fd3d2fb1cb66.pdfIn PDF document text
    • http://instapriz24.site/history_alive_loginlmk8y.pdfIn PDF document text
    • https://cdn.sqhk.co/zikufivol/zUibicB/42004599212.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vokulokunupada.epizy.com/arden_teal_size_guide.pdfIn PDF document text
    • http://segixiw.epizy.com/raxeb.pdfIn PDF document text
    • http://fofodas.rf.gd/7386873692.pdfIn PDF document text
    • http://nuxumejaxumem.epizy.com/jajarunedemavibodog.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_off0000dbcf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBCF 5516 bytes
SHA-256: 87f22ac31691b8fe24127978f53b5ab894b221e0e7316728ab2445f7bde68f4e
font_01_sfnt_off0000ee83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE83 10888 bytes
SHA-256: 11a49b00d168c96ba87901ed12ca4667c2a356a2dd1191b291c7d8309e426497