PDF malware analysis — malicious · 2c14171845b63fc5

MALICIOUS

PDF

118.6 KB

MD5: a1f094093d7faae806f44e73748cc9ed SHA-1: c07aa8476152d5060a0db42ba84fc7e43ca68994 SHA-256: 2c14171845b63fc5809853b058494fc9c27c1b8e485cf0f276b0a42271aaa1cd

166 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File T1566.002 Spearphishing Attachment

The critical ClamAV detection 'Pdf.Exploit.Agent-36086' and multiple high-severity PDF heuristics (PDF_EVAL, PDF_JS_LARGE_COMMENT_PADDED_EVAL) indicate this PDF exploits a vulnerability. The embedded JavaScript, particularly the 'eval()' call and the large comment-padded stager, strongly suggests it's designed to download and execute a second-stage payload. The lack of readable document body text prevents a more specific determination of the lure, but the technical indicators point to a malicious exploit delivery mechanism.

Heuristics 7

ClamAV: Pdf.Exploit.Agent-36086 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36086
eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution (matched inside decoded stream)
Large comment-padded JavaScript eval stager high PDF_JS_LARGE_COMMENT_PADDED_EVAL

PDF JavaScript contains a very large stream padded with long random-looking block comments around String.fromCharCode and eval. This is an exploit-kit obfuscation shape used to bury a decoder and recovered stage inside noise, not normal PDF form automation.
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.
String.fromCharCode low PDF_FROMCHARCODE

String.fromCharCode found — used to construct payload strings dynamically. Common in benign JavaScript libraries for codepoint manipulation, so this alone is informational; weaponised use is also caught by the dedicated fromCharCode-stage and exploit-shape rules. (matched inside decoded stream)
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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0006_000.js` `6a26f6724ebfff083eeace5c466d272a5f628c2c1906fe0e0724af8ee71df957`	pdf-javascript-stream	PDF /JS object 6 at offset 0x143	627960 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s). Carved artifact contains 42 long base64-like blob(s).
`stream_002_off0001d8bf.bin` `67b10fc2568d17d07576aa08e7d8b1db99b7e01bc51ca7cdd8c1dbf77c13b3b8`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x1D8BF	200 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.