PDF malware analysis — malicious · c26e5cf7bb4039b8

MALICIOUS

PDF

39.3 KB

MD5: bb18f852f0eb7dbd96c2e98fdf0d604a SHA-1: 85589ae8a827baa6354336ae4c6baba9dad5208c SHA-256: c26e5cf7bb4039b8328c410a3aea1428c4c1cf4c91f8f850174f07790db3a367

178 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1059.001 PowerShell

The PDF file contains embedded JavaScript and is flagged for exploiting CVE-2007-5659, which involves the 'Collab.collectEmailInfo' function. This indicates an attempt to leverage a known vulnerability to execute arbitrary code. The presence of U3D content and ClamAV detection further supports its malicious nature. The embedded JavaScript is likely responsible for downloading and executing a second-stage payload.

Heuristics 6

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. (identified after JavaScript deobfuscation)
U3D/3D content in PDF — Adobe Reader 3D parser CVE-family indicator high CVE related PDF_U3D_CVE_RELATED

PDF contains U3D (Universal 3D) or 3D annotation content — CVE-2011-2462 and CVE-2009-3953 are critical vulnerabilities in Adobe Reader's U3D processing that allow arbitrary code execution. U3D content in PDFs is extremely rare in normal documents.
ClamAV: Pdf.Exploit.Agent-36065 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36065
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.
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 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0007_000.js` `9c67560e8c63b720885d3efc1627b844b86a6ec08e99e5b65a22eae832045756`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A3	431 bytes
`legacy_pdfkit_stage_000.js` `7e92ecbcb7625bf2d1547ab33068ab6d5fa558d2646239562ab199879e7132df`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x31C	12609 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `f7a5292b6c84f3af1ed00124da2bebdc8139f9a477899c5495b0bf310bb0591b`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x31C	5206 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).
`u3d_00_off000030c0.bin` `be9b6f51ccc10ed67099a2e70bdc0d7433f445b059ca7dff9f11d5199e632bb6`	pdf-3d-stream	PDF U3D 3D stream at offset 0x30C0	27444 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact entropy is 7.99, consistent with packed or encrypted content.

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