Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca9d92dd95dc8aa6…

MALICIOUS

PDF

70.5 KB Created: 2021-02-14 17:53:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 1d8740d8bf078ff38a1607ac5f79cf89 SHA-1: 9122b5c7c54dd9161b7941ed3927e966af2c46e8 SHA-256: ca9d92dd95dc8aa6465d236108bfbe3180ca89c0183924079210d56daa170724
134 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 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://jacksth.ru/wix?keyword=jay+z+the+blueprint+download+zip+sharebeast PDF link annotation
    • http://topshops.website/373712630315v02f.pdfIn PDF document text
    • https://cdn.sqhk.co/gederanew/Yjf8RDL/dungeon_of_doom_wcw_theme.pdfIn PDF document text
    • http://bixifofagowezi.22web.org/88308707359.pdfIn PDF document text
    • https://geguxawuxereko.weebly.com/uploads/1/3/1/3/131379712/f4f56.pdfIn PDF document text
    • https://cdn.sqhk.co/popaxutu/c1Zjhig/como_conseguir_diamantes_gratis_no_my_story.pdfIn PDF document text
    • https://luxovifawus.weebly.com/uploads/1/3/4/3/134341193/844815.pdfIn PDF document text
    • https://cdn.sqhk.co/gepeduvo/haPhhIa/85867564185.pdfIn PDF document text
    • https://muwilumi.weebly.com/uploads/1/3/0/8/130813533/5e572604.pdfIn PDF document text
    • http://segwaywheelchair.ru/14146385174qpqjb.pdfIn PDF document text
    • https://tabogivazosepa.weebly.com/uploads/1/3/1/8/131871767/xalafesi.pdfIn PDF document text
    • https://cdn.sqhk.co/nuxezitowefi/hdAp9Wo/pajijaduwipipufarerumukem.pdfIn PDF document text
    • https://cdn.sqhk.co/kikolibub/nKgcjjX/free_download_photo_collage_software_for_pc.pdfIn PDF document text
    • https://bigififipajug.weebly.com/uploads/1/3/4/7/134709095/xabujiremumejoxu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zogiken.rf.gd/bridge_house_school_uniform.pdfIn PDF document text
    • https://s3.amazonaws.com/kumasala/irish_general_knowledge_quiz_and_answers.pdfIn PDF document text
    • http://muresapidun.epizy.com/pediatric_diarrhea_guidelines_2016.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_off0000d540.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD540 5420 bytes
SHA-256: e68f235fd80d8adb717dac1c64eb98b8a82483ca4197d8314b911446474b6189
font_01_sfnt_off0000e7c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7C0 10996 bytes
SHA-256: e16c2615e55aa37bd046dd7a2e04860a970e6f58c7e27bf30415889a439fd25c