MALICIOUS
412
Risk Score
Malware Insights
MITRE ATT&CK
T1204.002 Malicious File
T1059.003 Windows Command Shell
T1105 Ingress Tool Transfer
The PDF file contains a critical PDF_LAUNCH heuristic firing, indicating an attempt to execute cmd.exe. This is further supported by the PDF_EMBEDDED_PE_PAYLOAD heuristic, which identified an embedded Windows executable. The CVE_2010_1240 heuristic confirms the exploit targets a known Adobe Reader vulnerability for command execution. The embedded executable is likely a second-stage payload, and the mailto URI suggests a potential phishing or social engineering vector.
Heuristics 11
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Adobe Reader Launch action command execution critical CVE exact CVE_2010_1240PDF 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.
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TrueType bitmap font + active content — CVE-2023-26369 related high PDF_CVE_2023_26369_RELATEDPDF embeds a TrueType font with bitmap tables (EBDT/sbix/CBDT) alongside exploit delivery indicators — CVE-2023-26369 exploits the sfac_GetSbitBitmap function in Adobe's libCoolType for arbitrary code execution. This CVE was actively exploited in the wild, but this rule does not validate the malformed EBLC/EBDT primitive.
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Launch action critical PDF_LAUNCHPDF contains a /Launch action whose target is an executable, URL, or UNC path — can start an external application
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Embedded Windows executable payload in PDF stream critical PDF_EMBEDDED_PE_PAYLOADPDF 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.
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/Launch action target: cmd.exe critical PDF_LAUNCH_COMMANDPDF /Launch action specifies an executable target with parameters '/Q /C %HOMEDRIVE%&cd %HOMEPATH%&(if exist "Desktop\\Comunidad_Valenciana2.pdf" (cd "Desktop"' — references a known-dangerous executable (cmd, PowerShell, etc.).
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ClamAV: Pdf.Tool.Agent-1388586 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Tool.Agent-1388586
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Clickable PDF combines external action with parser-evasion structure high PDF_ACTION_PARSER_EVASIONPDF has an external clickable URI together with object graph or xref structures that make parsers disagree, such as divergent duplicate objects, parser divergence, or xref offset mismatch. That combination is stronger than a plain link: the document is both an outward-action carrier and a parser-confusion/evasion sample.
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JavaScript action low PDF_JAVASCRIPTPDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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Embedded file low PDF_EMBEDDEDPDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
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External URI low PDF_URIPDF contains an external URL action
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
javascript_obj0189_000.js439691fcba3f127d2724a3adfb9f387fc561cc78c26b5c60bb688f2cbcca27c3 |
pdf-javascript-stream | PDF /JS object 189 at offset 0x5488C | 70 bytes |
stream_008_off0000d74f.bin734b945b274d84d405d6f2494dca31579ee1308dc3bfac2968b06562f5fe86ac |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0xD74F | 185880 bytes |
stream_010_off00024114.bind9351745ca0d87e1b119e5d8965532bfeb23e784668d15a7dd6faadc0ea30f95 |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x24114 | 302228 bytes |
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