Malicious PDF — malware analysis report

Static analysis result for SHA-256 554bdac29959afc4…

MALICIOUS

PDF

75.2 KB Created: 2021-09-08 15:25:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-14
MD5: 1e3722cc97dbb23420b21a8ed45aa546 SHA-1: 9443076578c87efca2147db67ee77bdbfdfc0248 SHA-256: 554bdac29959afc4c8bfc48b32753aba4a26fb90a0577d741ac3033b4006398c
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9976

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://pixomot.ru/uplcv?utm_term=japji+sahib+full+path+in+punjabi+pdf PDF link annotation
    • https://masihpt1.com/contents/files/fovujunexaxada.pdfIn PDF document text
    • http://lesmashclub.com/imgUpload/files/67799319107.pdfIn PDF document text
    • https://ubranni.com/uploader/files/33687087694.pdfIn PDF document text
    • https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/db7796795d17bccb4a36fbd8b18b299f/nulenopewovofadunubidat.pdfIn PDF document text
    • http://holdemigny.fr/ckfinder/userfiles/files/74638935718.pdfIn PDF document text
    • http://machulski.com/public/file/nasizitixakab.pdfIn PDF document text
    • https://apatity.verlauf-ekb.ru/admin/ckfinder/userfiles/files/60566794032.pdfIn PDF document text
    • https://darshanam.com/ckfinder/userfiles/files/13889364779.pdfIn PDF document text
    • https://mi-stores.com/basketballtotaal/images/editor/file/87900481483.pdfIn PDF document text
    • http://mim2010.ru/userfiles/file/1300895639.pdfIn PDF document text
    • https://kindeeyudee.com/ck_files/files/1905801466.pdfIn PDF document text
    • https://elitteaccesorios.com/wp-content/plugins/super-forms/uploads/php/files/j1jtc8u4pe6bkgg1solsqcjltk/nutupotojujuvib.pdfIn PDF document text
    • https://saptabangunmanunggal.com/indomobils/upload/file/21140478268.pdfIn PDF document text
    • https://lhorizon.ca/uploadHorizon/file/zepulirotobelawujaxaguj.pdfIn PDF document text
    • http://lavalnerina.it/userfiles/file/pekogumubobus.pdfIn PDF document text
    • https://aldaserwis.pl/ckfinder/userfiles/files/mivaxuveg.pdfIn PDF document text
    • https://melnikhouse.com/userfiles/file/nezufuroladuzut.pdfIn PDF document text
    • https://speeddating.lt/speeddating/ckfinder/userfiles/files/rufefagitetefipoz.pdfIn PDF document text
    • https://strings97.hu/userfiles/file/88208213715.pdfIn PDF document text
    • https://zaragozadenoche.es/upload/files/kekajositaku.pdfIn PDF document text
    • http://thedewakohchang.com/image/upload/File/5584650914.pdfIn PDF document text
    • http://www.dogwoodagility.nl/ckfinder/userfiles/files/82663522415.pdfIn PDF document text
    • https://vntdc.com/upload/fck/file/detudawe.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://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_off0000bbab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBBAB 19796 bytes
SHA-256: 2e357e6ffffd5bfeae8a833500e4f3d3092dca0dd857732a00b659acfd206341
font_01_sfnt_off0000eeeb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEEB 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00010702.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10702 10604 bytes
SHA-256: 93a8fd12badf16f57e3812478f351c0dc57f6bffe45f76d7d41cde8008620beb

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