PDF malware analysis — malicious · a6beadd5b98b9d7f

MALICIOUS

PDF

131.7 KB

MD5: 47a46ba2220cf6368eb0d42d8a6d40e3 SHA-1: 18f459ec6e62eba9411216c2609a566718d97e0c SHA-256: a6beadd5b98b9d7f853bf6f078c3a5ce13da98b3b0605e90b5e3d6b911895a29

286 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF contains embedded JavaScript and a Flash object, both of which are commonly used to exploit browser or PDF reader vulnerabilities. The critical heuristic 'POLYGLOT_CHILD_PDF_STATIC_TRIAGE' indicates a secondary embedded PDF with suspicious findings, including JavaScript and eval() calls, suggesting a multi-stage attack. The extracted artifacts, including a JavaScript file and a SWF file, further support the likelihood of exploit delivery and potential second-stage payload execution.

Heuristics 9

Secondary embedded PDF body has suspicious static findings critical POLYGLOT_CHILD_PDF_STATIC_TRIAGE

A valid PDF body was found at a nonzero offset inside another container and its carved contents matched PDF exploit or lure heuristics. This catches polyglots where the top-level magic routes to ZIP/OLE while a PDF reader or downstream parser opens the hidden PDF payload.
ClamAV: Pdf.Exploit.Agent-35955 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-35955
ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV

ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
RichMedia (Flash) high PDF_RICHMEDIA

PDF contains /RichMedia (Adobe Flash) which is a historic exploit vector
eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution (matched inside decoded stream)
JavaScript action low 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
Suspicious extracted artifact info 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.

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`zVGWPnPsl.swf` `ae13437efad4e3a4f03cb0339d03b7d795966b217d30a540767c4ae26f402285`	pdf-embedded-file	PDF EmbeddedFile object 16 at offset 0x146D	26774 bytes
Detection ClamAV: Pdf.Exploit.Agent-35955 Obfuscation or payload: likely Carved artifact entropy is 7.99, consistent with packed or encrypted content.
`javascript_obj0006_000.js` `178018cb8a7a5e2c6c4ee6e6d6ef777b6766d83315773fb58538dafb6c0a9e0a`	pdf-javascript-stream	PDF /JS object 6 at offset 0x13E	12119 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 10 eval/decoder/string-building token(s). Carved artifact contains 3 long base64-like blob(s).
`polyglot_child_pdf_off00017cb5.pdf` `ee6ca3a5e7e1ec6dd3411eb344bc5036a8a7988f35a2622e8624ba7c18e888fc`	polyglot-child-pdf	Secondary PDF body inside pdf container at offset 0x17CB5	37418 bytes
Detection ClamAV: Pdf.Exploit.Agent-35955 Obfuscation or payload: unlikely

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