PDF malware analysis — malicious · be45ffbfc57e72ec

MALICIOUS

PDF

74.1 KB Created: 2009-11-17 19:46:65 Authoring application: PDF Library 8.8.10 (via PDF Library 9.6.10)

MD5: 23d00f8299634734ff99d3eb53f701f9 SHA-1: df7eabb41b4238a4440896b312df0bb72022ce0d SHA-256: be45ffbfc57e72ec6d1ed126907e383d92db93056dfd586c1853f6b41f451a75

222 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.001 Malicious Link

This PDF document exploits multiple known Adobe Reader vulnerabilities including CVE-2009-0927, CVE-2007-5659, and CVE-2008-2992. The exploitation involves obfuscated JavaScript, which is likely intended to download and execute a second-stage payload. The presence of multiple critical exploit indicators suggests a high likelihood of malicious intent, though the specific family remains undetermined.

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)
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)
ASCIIHexDecode filter (with exploit indicators) medium PDF_FILTER_HEX

Hex-encoding filter present alongside exploit delivery indicators — often used to hide payload or shellcode bytes
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.
PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED

The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PSSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
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_obj0007_000.js` `816f98a047cb44d680fd2081053dd66578a8a8aa27aedb6abe7c9d8b9b6c389c`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	37406 bytes
`legacy_pdfkit_stage_000.js` `e95da2ea603801aaf592559498904db731a0099627e849708760a996bcda3d30`	deobfuscated-js	numeric array subtract-key decoded JavaScript at offset 0x1A5	9664 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 9 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).

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