PDF malware analysis — malicious · 2ad618171ff93f3c

MALICIOUS

PDF

5.9 KB Created: 2008-09-24 19:47:56 Authoring application: Adobe

MD5: a9c57d0fb66735be3fa210319a135a7a SHA-1: 5341310653a0c292bc8b61c1d45b42f08f93f469 SHA-256: 2ad618171ff93f3c213f1c6ee77bed36c67f7e8b3b6e5d282d8b1c6f3ae2a317

198 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF document contains embedded JavaScript that leverages known vulnerabilities (CVE-2009-0927 and CVE-2007-5659) to achieve code execution. Static analysis detected a ClamAV signature 'Js.Exploit.Shellcode-18' on an extracted JavaScript file, indicating a malicious script. The deobfuscated JavaScript file 'legacy_pdfkit_stage_000.js' is likely responsible for downloading and executing a secondary payload, although its exact actions are obscured.

Heuristics 6

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. (identified after JavaScript deobfuscation)
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)
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_obj0006_000.js` `1359a2cb3eff07123401e5fae99ad2f9109848628121ed446273902ff99fc9ed`	pdf-javascript-stream	PDF /JS object 6 at offset 0x1398	130 bytes
`javascript_obj0016_001.js` `47e62c9b9a22ca5bc13bee2b1deb6ed9b462861b8d2391d1a6da9316c8524db7`	pdf-javascript-stream	PDF /JS object 16 at offset 0x1460	158 bytes
`legacy_pdfkit_stage_000.js` `795465b53ac000e4b785dd64bb6c6a1c42f217e36acd2e56cf3ad199c830abbc`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x1E7	4841 bytes
Detection ClamAV: Js.Exploit.Shellcode-18 Obfuscation or payload: likely Carved artifact contains 9 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).

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