PDF malware analysis — malicious · dff5339c3e23dd2f

MALICIOUS

PDF

3.5 KB

MD5: 2aef7a2ae0b6d3dd1f7efe2ba98e4e94 SHA-1: b5b34dec750a24a46c1f174c30182584feb11db4 SHA-256: dff5339c3e23dd2f3911e2d883fc01bee9d5e0107db5227c4df645307c1fda96

280 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF document contains embedded JavaScript that is heavily obfuscated using `unescape()` and `eval()` calls. Critical heuristics indicate exploitation of CVE-2009-0927 and CVE-2007-5659, which are known vulnerabilities in Adobe Reader related to JavaScript execution within PDF files. The deobfuscated JavaScript likely serves as a loader for further malicious activity, such as downloading and executing additional payloads from external sources.

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. (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: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTION

ClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution (matched inside decoded stream)
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits (matched inside decoded stream)
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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0004_000.js` `514c7ce6bba4844ddbea0046b0c75303d07ecf3cc3947ba7ab19610fd14a3627`	pdf-javascript-stream	PDF /JS object 4 at offset 0x249	28917 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).
`numeric_charcode_stage_000.js` `bd81482c6496a0c5308c9eca705e450536d2bbbe9558a1fd65c50845de4c6e4a`	deobfuscated-js	numeric char-code string decoded JavaScript at offset 0x2B2	6497 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

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