Malicious PDF — malware analysis report

Static analysis result for SHA-256 72b602775ef622fa…

MALICIOUS

PDF

70.6 KB Created: 2021-03-04 02:58:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: e59be1936d02c863a6a5dfe0bab3a7a4 SHA-1: 08ed3432366959dd14c1f857bb0146b87658fb2c SHA-256: 72b602775ef622fa6f9cb4a3a43dd6e3aaacf558940624fc37c920afdae39dc1
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://seumenha.ru/wix?keyword=ps3+eye+camera+mounting+clip PDF link annotation
    • https://cdn.sqhk.co/bovutolomevo/gcghgj4/rajifokoxesipapifefukugib.pdfIn PDF document text
    • https://cdn.sqhk.co/didatife/ijh1Xgd/64581137518.pdfIn PDF document text
    • https://cdn.sqhk.co/salefudodid/wBhgdei/15740014129.pdfIn PDF document text
    • http://lulopoboxefon.scienceontheweb.net/38550168212.pdfIn PDF document text
    • https://nitiruminaxodax.weebly.com/uploads/1/3/0/7/130738633/4d28d4d4b93.pdfIn PDF document text
    • https://leruvipox.weebly.com/uploads/1/3/5/3/135347136/45b843a.pdfIn PDF document text
    • https://cdn.sqhk.co/rorajakura/ghSnihi/draw_in_asl.pdfIn PDF document text
    • http://ludovudupe.iblogger.org/80135497154.pdfIn PDF document text
    • https://cdn.sqhk.co/mafowixodi/t7ide2h/vampire_wars_netflix_cast.pdfIn PDF document text
    • https://fofapisobav.weebly.com/uploads/1/3/4/7/134712410/c4a22f18c3b.pdfIn PDF document text
    • https://cdn.sqhk.co/fumamimed/xDEhduj/29066517933.pdfIn PDF document text
    • https://cdn.sqhk.co/ragejeli/agiNBoF/jikukamarunelekatav.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pumumiz.epizy.com/xetipa.pdfIn PDF document text
    • http://pojoviraxerojo.myartsonline.com/what_lives_in_an_ocean_ecosystem.pdfIn PDF document text
    • http://xuwugufufokiti.epizy.com/49584721437.pdfIn PDF document text
    • http://vetetipusel.rf.gd/60130139577.pdfIn PDF document text
    • http://dapufojutujat.atwebpages.com/21508918209.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c234.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC234 5520 bytes
SHA-256: d96a2f77920d70372bfc6836fb1ebf3b8c07c5577872474aefce8b1010d78574
font_01_sfnt_off0000d4ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4EE 9832 bytes
SHA-256: 29a2a54c23fbff7a57a94d44afc56e1c042199ca24cb77870e68bb21c60872b6
font_02_sfnt_off0000f6a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6A1 16144 bytes
SHA-256: c5b81f703ebddc697e6824868dcd306aba919aa4c1ec28f594a83a04df97872b

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