MALICIOUS
370
Risk Score
Malware Insights
MITRE ATT&CK
T1204.002 Malicious File Execution: Malicious File
T1059.003 Command and Scripting Interpreter: Windows Command Shell
T1566.001 Phishing: Spearphishing Attachment
The PDF file contains embedded JavaScript and a critical PDF_LAUNCH heuristic firing, indicating an attempt to execute code. Specifically, the PDF_LAUNCH_COMMAND heuristic shows that cmd.exe is launched with parameters that suggest the execution of an embedded PE payload. This is further supported by the ClamAV detection of 'Pdf.Dropper.Agent-7275404-0', indicating a dropper functionality. The embedded executable payload is the primary malicious component, delivered via a PDF wrapper.
Heuristics 12
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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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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\\filethu_nghiem.pdf" (cd "Desktop"' — references a known-dangerous executable (cmd, PowerShell, etc.).
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ClamAV: Pdf.Dropper.Agent-7275404-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Dropper.Agent-7275404-0
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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 info PDF_URIPDF contains an external URL action
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PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILEDThe cross-check parser (pdfminer.six) failed on this file: PDF differential parser exited 1. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
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Embedded URL info EMBEDDED_URLOne 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://www.malwaretracker.com/pdf.php
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
javascript_obj0182_000.js5b91615289eef19e69748fb767a651f2ae9e6fa1885ea73b90e6b40b33990648 |
pdf-javascript-stream | PDF /JS object 182 at offset 0x13DFB3 | 63 bytes |
stream_011_off001166ae.bin9167390d75fd8b94d1d81c444db2f36752bd76e94b3ec1c64948133ef72d6a89 |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x1166AE | 321784 bytes |
stream_013_off00133381.binf5f5a38320b8fe447d1e84cbae05fc98a22bcc28ffb78da395618de1cae0269c |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x133381 | 73802 bytes |
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