PDF malware analysis — malicious · 97d699db46b58750

MALICIOUS

PDF

7.8 KB Created: 2011-02-04 02:27:01 Authoring application: A7JpCUKZ (via nB2HKHIJFxrw)

MD5: 6bdd9a15a68b29632ba3de0c5947f833 SHA-1: 01b90edca0f8cfa5a72a4482daa37a26c25f8e87 SHA-256: 97d699db46b5875073cc06181d2700584a151808a421ba9616ece544bb99a99e

376 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF sample contains multiple critical heuristic firings indicating exploitation of CVE-2009_0927 (Collab.getIcon), CVE_2007_5659 (Collab.collectEmailInfo), and CVE_2008_2992 (util.printf). It also triggers a PDF_OPENACTION and contains embedded JavaScript, suggesting it's designed to automatically execute malicious code upon opening. The presence of a suspicious extracted JavaScript file further supports this. The exact payload and delivery mechanism are unclear due to the lack of specific URL or script content details, but the exploitation of these known PDF vulnerabilities is the primary attack vector.

Heuristics 9

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. (matched in decompressed stream)
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. (matched in decompressed stream)
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. (matched in decompressed stream)
ClamAV: Pdf.Exploit.CVE_2009_0927-1 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.CVE_2009_0927-1
OpenAction trigger high PDF_OPENACTION

PDF has an /OpenAction — code runs automatically when opened
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits (matched inside decoded stream)
Suspicious extracted artifact high 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.
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.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0007_000.js` `c53c7acb4b580723efbbf72d2addcf0b09063ccd2c2c7b862af5f48c10fc005a`	pdf-javascript-stream	PDF /JS object 7 at offset 0x23A	6670 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 7 eval/decoder/string-building token(s).

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