Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb8a667673fc583f…

MALICIOUS

PDF

77.1 KB Created: 2022-04-12 07:14:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-08
MD5: 55e032d70940362b8d34987cc710b669 SHA-1: 7b7faab5bd5472ac24936c8da359716c5ca2f3ef SHA-256: cb8a667673fc583f6f4d0f24b31ed3220a70913250f653ad235810007020d73c
266 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 8

  • 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 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.
  • 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
  • Travel-support phone-number stuffing scam high SE_TRAVEL_SUPPORT_PHONE_SCAM
    Document repeats phone numbers in airline/travel/refund/support language, often across multiple regional phrasings. This matches SEO/support-scam PDFs that impersonate airlines or travel brands and route users to attacker-controlled call centers rather than a normal travel document.
  • 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://ragaz.co.za/YmrXLWy8?keyword=hp%20laserjet%20p2035%20printer%20specs PDF link annotation
    • https://pilawero.weebly.com/uploads/1/3/4/0/134095891/zaxitalesipa.pdfIn PDF document text
    • https://gixipimeno.weebly.com/uploads/1/3/4/3/134310045/39549a232fee.pdfIn PDF document text
    • https://terracell.pt/images/file/50638064261.pdfIn PDF document text
    • https://asplovdiv.izostil.com/userfiles/file/66876407996.pdfIn PDF document text
    • https://bovemadewu.weebly.com/uploads/1/3/4/6/134651231/1694859.pdfIn PDF document text
    • http://www.awakohchang.com/image/upload/File/orawapebopazadeziduzese.pdfIn PDF document text
    • https://alinea.emailingmanager.com/uploads/editor/file/80035009218.pdfIn PDF document text
    • https://www.takaotakano.com/kcfinder/upload/files/bibuju.pdfIn PDF document text
    • https://segawalapuk.weebly.com/uploads/1/3/4/9/134902876/5625472.pdfIn PDF document text
    • https://wuxudaboxebe.weebly.com/uploads/1/3/5/2/135297242/loxasomo.pdfIn PDF document text
    • https://tibegoruk.weebly.com/uploads/1/3/4/8/134862976/202250.pdfIn PDF document text
    • https://fusopozosasotex.weebly.com/uploads/1/3/4/4/134477759/dexekib.pdfIn PDF document text
    • https://roxilegetewus.weebly.com/uploads/1/3/4/7/134721251/subexife.pdfIn PDF document text
    • http://billsky.ee/files/file/pomawezizin.pdfIn PDF document text
    • https://gujejitemisadud.weebly.com/uploads/1/3/4/3/134354005/6304f3c690.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_off0000c601.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c601.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c601.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC601 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000de13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE13 17880 bytes
SHA-256: 533e8b37078a98ab3488ba98f772de3886d9367af84543d568d29f9b278030de
font_02_sfnt_off00010cc3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10CC3 10916 bytes
SHA-256: e74b01dfbd5abe4eb84c2f51a16fae9bf1d34d4493357aa4312d52669291ff61