Malicious PDF — malware analysis report

Static analysis result for SHA-256 29b8b7f87f1ffaf7…

MALICIOUS

PDF

71.6 KB Created: 2021-02-14 21:50:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: cc91332c0b05f777bcb3b74fd5608bd1 SHA-1: 56dbd0676383e94061ed2d25746e124ab97cbaf7 SHA-256: 29b8b7f87f1ffaf7a5de63d7e044c2ea9abf3e8ef31f8703dbba8c08c04aff6d
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://bologen.ru/wix?keyword=mahoning+county+auditor%2527s+office PDF link annotation
    • https://rexawalifutox.weebly.com/uploads/1/3/4/4/134458468/9035036.pdfIn PDF document text
    • https://cdn.sqhk.co/sepunaro/gciaONI/undateable_cast_live.pdfIn PDF document text
    • http://wozutujetotox.iblogger.org/zoguzemap.pdfIn PDF document text
    • https://kekorozonositen.weebly.com/uploads/1/3/2/7/132710750/ralojupo.pdfIn PDF document text
    • https://cdn.sqhk.co/disumuneriva/dieeU9O/20304720883.pdfIn PDF document text
    • https://luroxonigin.weebly.com/uploads/1/3/1/4/131406321/xipelozaz-gedetuzopazu.pdfIn PDF document text
    • https://nitelozam.weebly.com/uploads/1/3/5/3/135308565/xuguvuj.pdfIn PDF document text
    • https://cdn.sqhk.co/dorejewibiz/jehavYq/digital_middle_school_books_about_the_holocaust.pdfIn PDF document text
    • https://gixujadimi.weebly.com/uploads/1/3/4/7/134708567/b9584b3016.pdfIn PDF document text
    • http://didavixakodix.22web.org/nelson_mandela_day_information.pdfIn PDF document text
    • https://tegimawemax.weebly.com/uploads/1/3/1/3/131383609/dinadav_lupasib_vifakupagifomof_xukumoxom.pdfIn PDF document text
    • https://cdn.sqhk.co/feripamapuv/jjbdbgf/bike_game_download_free_jio_phone.pdfIn PDF document text
    • https://xejapekedom.weebly.com/uploads/1/3/4/8/134864907/ec91beb4bfd.pdfIn PDF document text
    • https://cdn.sqhk.co/xefijumu/iNibtTB/21668238028.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vuwepowav.epizy.com/outlook_calendar_template_for_excel.pdfIn PDF document text
    • http://wikatefa.epizy.com/2411129741.pdfIn PDF document text
    • http://figofubinodafe.rf.gd/51718928595.pdfIn PDF document text
    • http://fusuxitizubuka.epizy.com/risimubudubobe.pdfIn PDF document text
    • http://varepekolati.rf.gd/jemena_financial_report.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_off0000d96a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD96A 5392 bytes
SHA-256: abec74dfdc78716344fe45bb94df602ca945f66c2b177d7abcdf4a638fc99924
font_01_sfnt_off0000ebd8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBD8 10920 bytes
SHA-256: 4e5e0e5c569cf86ee6457db3c0bfe941aa26d584a8f7e4f2eea5bd4a1dadcb5d

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