Malicious PDF — malware analysis report

Static analysis result for SHA-256 9294b0c95cd83bd9…

MALICIOUS

PDF

72.5 KB Created: 2021-02-20 08:45:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 89a84b4659dee2e613271088bd8975b5 SHA-1: 205f201ac7076fe68de35b6ce4ca21e65a98abfa SHA-256: 9294b0c95cd83bd98d535ed793e5b098df0e1c03f8e1e0d83c761b9537f66548
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/wix?keyword=flowchart+and+pseudocode+questions+and+answers+pdf PDF link annotation
    • https://cdn.sqhk.co/jarixizotib/etcichh/sad_love_girl_quotes_hd_wallpaper.pdfIn PDF document text
    • https://cdn.sqhk.co/tisewesir/hjgdhho/74968122581.pdfIn PDF document text
    • https://cdn.sqhk.co/muzorefu/Riijeij/come_fare_stickers_su_whatsapp_iphone.pdfIn PDF document text
    • https://vuwuzujos.weebly.com/uploads/1/3/2/7/132712237/a24b21a85c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408174/normal_5fc82e66eb086.pdfIn PDF document text
    • https://bapudemajupi.weebly.com/uploads/1/3/1/4/131438294/falodatoseduzi_zurawimef.pdfIn PDF document text
    • https://cdn.sqhk.co/fekurisakez/0rmjggf/50572335575.pdfIn PDF document text
    • https://cdn.sqhk.co/gibuzini/hhhdjY9/warthog_red_vs_blue.pdfIn PDF document text
    • https://nixetamusizag.weebly.com/uploads/1/3/0/7/130740210/72e1ccfe5bd4.pdfIn PDF document text
    • https://xewaxegixu.weebly.com/uploads/1/3/0/7/130739020/dupijudiraf.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/rimejiguvif/update_android_sdk_command_line_ubuntu.pdfIn PDF document text
    • https://s3.amazonaws.com/dowavelaxam/gakidiseze.pdfIn PDF document text
    • https://s3.amazonaws.com/zemigiduwagafu/zemipadubowedo.pdfIn PDF document text
    • http://bowomufe.epizy.com/68051451383.pdfIn PDF document text
    • http://goxobiwab.rf.gd/advanced_search_ebay_android.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_off0000ddc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDC8 5416 bytes
SHA-256: afbc4b02b84f79631febd62cf7f16c6b2f19ba6515ca6e32012b63f11bfac59d
font_01_sfnt_off0000f03f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF03F 10788 bytes
SHA-256: 4b262ffafaec112b147c08553e0f87aced7d03e56eee1b0e936dce55691560a9