PDF malware analysis — malicious · 8793af4670f0b9c7

MALICIOUS

PDF

178.7 KB

MD5: dd7d6fc50b7ece4d1f92bfc17168105d SHA-1: fea0a1cbf85ea56060b918835488a6df43790ec7 SHA-256: 8793af4670f0b9c7dfeb0a6ac905f1bc215c00dde1177d549526b8d73345a5a6

258 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.001 Malicious Link

The PDF file contains embedded JavaScript that exploits CVE-2007-5659 and CVE-2008-2992. ClamAV detections indicate this is a known exploit, Pdf.Exploit.Agent-36117, which likely attempts to download and execute a secondary payload. Multiple JavaScript files were extracted, suggesting a multi-stage attack.

Heuristics 7

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)
util.printf — CVE-2008-2992 critical CVE exact CVE_2008_2992

PDF JavaScript calls util.printf() — CVE-2008-2992 is a stack buffer overflow in Adobe Reader triggered by a long format-specifier argument. Widely exploited in the wild after disclosure. (identified after JavaScript deobfuscation)
ClamAV: Pdf.Exploit.Agent-36117 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36117
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.
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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0008_000.js` `688b6f3c4f0a8342b9faa6c1b58c271ab056a9157d8a50f78490a14c44d37166`	pdf-javascript-stream	PDF /JS object 8 at offset 0x1E7	2674 bytes
Detection ClamAV: Pdf.Exploit.Agent-36307 Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_000.js` `340949ab0603abc7b72963ccfc7f22013fa90a2713265b84ac02f3c0f2d2215d`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0xC8D	14575 bytes
Detection ClamAV: Js.Exploit.Shellcode-18 Obfuscation or payload: likely Carved artifact contains 8 eval/decoder/string-building token(s).
`legacy_pdfkit_stage_001.js` `e2079400617296a339a45752b0245044463d0b9e66f07a0eac88ce32e01357f9`	deobfuscated-js	double percent-decoded annotation JavaScript at offset 0xC8D	19945 bytes
Detection ClamAV: Js.Exploit.Shellcode-18 Obfuscation or payload: likely Carved artifact contains 10 eval/decoder/string-building token(s).

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