PDF malware analysis — malicious · 2341c37c9d5fda9c

MALICIOUS

PDF

6.1 KB

MD5: 38ac0f9348125f32a55500e4d16c9e5f SHA-1: 1a03061f30a4a22da2687671ac774bc789b4bfeb SHA-256: 2341c37c9d5fda9c6754b1d9e49633bf882a8ac693456996d4dd6783cd96a8ce

240 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

This PDF file is malicious, as indicated by ClamAV detection and multiple critical heuristic firings related to known PDF exploits (CVE-2009-0927 and CVE-2007-5659). It contains embedded JavaScript, which is further evidenced by the 'PDF_JAVASCRIPT' and 'PDF_JS' heuristics. The JavaScript stream, named 'javascript_obj0116_000.js', likely contains obfuscated code that leverages the 'eval()' function to execute malicious actions, such as downloading and running a second-stage payload. The document body is unreadable, but the exploit and script content strongly suggest a dropper or downloader functionality.

Heuristics 8

Collab.getIcon — CVE-2009-0927 critical CVE exact CVE_2009_0927

PDF JavaScript calls Collab.getIcon — CVE-2009-0927 is a stack buffer overflow in Adobe Reader triggered by Collab.getIcon() with a crafted argument. Allows arbitrary code execution. (matched in decompressed stream)
Collab.collectEmailInfo — CVE-2007-5659 critical CVE exact CVE_2007_5659

PDF JavaScript calls Collab.collectEmailInfo — CVE-2007-5659 is a buffer overflow in Adobe Reader triggered by a long argument or heap-sprayed message field passed to Collab.collectEmailInfo(). Part of a series of Acrobat JS API exploits. (matched in decompressed stream)
ClamAV: Pdf.Dropper.Agent-7239327-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-7239327-0
eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution
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.
PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED

The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PSSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
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 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0116_000.js` `d57fd126b509d4662f3f115c69c9f3b63dd6c10d4d45e35216e7d8c1311c5b89`	pdf-javascript-stream	PDF /JS object 116 at offset 0x497	5722 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

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