Malicious PDF — malware analysis report

Static analysis result for SHA-256 847d7540c8fdcff8…

MALICIOUS

PDF

250.9 KB Created: 2022-04-07 12:07:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-05
MD5: 1fd77d8599bdb3c440849f272d921190 SHA-1: 79db37af633f07039485c5fd2bf599f0172a335c SHA-256: 847d7540c8fdcff84b6343a72ceed028bb229b6b95ab3bac3e453faa14eb2df6
176 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9597

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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://lubigovoxudi.weebly.com/uploads/1/3/4/1/134109264/9647458.pdf In PDF document text
    • http://anantasandesh.com/dbros/public/ckeditor/kcfinder/upload/files/50325532770.pdfIn PDF document text
    • http://neza.cz/UserFiles/File/73655508215.pdfIn PDF document text
    • https://pojekemo.weebly.com/uploads/1/3/4/4/134469054/9668634.pdfIn PDF document text
    • https://kaxitojuwomig.weebly.com/uploads/1/3/5/3/135302818/8542680.pdfIn PDF document text
    • https://matazutaf.weebly.com/uploads/1/4/1/2/141260975/7331516.pdfIn PDF document text
    • https://deketonozalupu.weebly.com/uploads/1/3/3/9/133997688/patifanabekamoz-nebigeroxur-zuvuzafono-bepera.pdfIn PDF document text
    • http://lhdrum.com/User_File/UpFile/file/20220330160610_MzI4NTMxNjAxMTE=.pdfIn PDF document text
    • https://przyklejki.pl/userfiles/60480350971.pdfIn PDF document text
    • https://fupotepalakeb.weebly.com/uploads/1/3/5/3/135351483/lofukaroni-zojex.pdfIn PDF document text
    • https://didefulamit.weebly.com/uploads/1/4/1/2/141256061/4959409.pdfIn PDF document text
    • https://memebewaliz.weebly.com/uploads/1/3/0/7/130775997/kakovofirosowopexa.pdfIn PDF document text
    • https://zujituxo.weebly.com/uploads/1/3/2/6/132681889/zanezuvarixezodosip.pdfIn PDF document text
    • https://www.systemswecare.com/admin/kcfinder/upload/files/16752196665.pdfIn PDF document text
    • https://jabofewikan.weebly.com/uploads/1/3/1/4/131437477/kepefuwa_zimufezefo_nufuvub_xedonibe.pdfIn PDF document text
    • https://podar.co.za/XSRYdR1H?utm_term=computer+systems+a+programmer%27+s+perspective+solutionsPDF link annotation
    • https://juvifopabolosat.weebly.com/uploads/1/3/5/3/135313118/d0621ee.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 extracted file (font_00_sfnt_off00037b3c.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00037b3c.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00037b3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x37B3C 18404 bytes
SHA-256: 3d66ef850f5d440da2604587536dc5e5ea9af7d3b01269936854c8c4d70563f4
font_01_sfnt_off0003ab08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3AB08 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0003c31f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3C31F 11064 bytes
SHA-256: 34186a7a06bc2c0c11fb82a21fa68f0236e9bc21638ff1603c391ea0f2db7986