PDF malware analysis — malicious · 85ce388d3c103c24

MALICIOUS

PDF

27.6 KB Created: 2012-05-04 16:02:45 +04:00 Authoring application: Podbean.com (via mPDF 5.0)

MD5: 2f74f366e6f7361139c52530677401e4 SHA-1: 47d8529a3d3a219cb1cb9b41877e58be2cf44036 SHA-256: 85ce388d3c103c242014dcc8ecf0afeddecd09a82eee3ce9c42a037cfa2f4f6c

146 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript/JScript T1566.002 Spearphishing Attachment T1071.001 Web Protocols

The PDF contains obfuscated JavaScript that functions as a URL redirector. This script utilizes the getURL function to navigate the user to 'http://searchglobalsite.com/in.cgi?26'. The ML classifier strongly indicates malicious intent, and the presence of obfuscated JavaScript and a suspicious URL points to a phishing or malware delivery attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.9994

Heuristics 5

Obfuscated document JavaScript getURL redirector high PDF_JS_OBFUSCATED_GETURL_REDIRECTOR

PDF document-level JavaScript automatically calls getURL() on an HTTP(S) destination hidden behind percent escapes. The decoded path is a redirector-style endpoint such as /in.cgi or /go.php. This is malicious routing behavior rather than a PDF parser CVE.
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits (matched inside decoded stream)
Suspicious extracted artifact medium 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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0022_000.js` `c7112452431da18097498273b54db50e9341201461ae8a86f9d5f45cf5226215`	pdf-javascript-stream	PDF /JS object 22 at offset 0x66C4	136 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s). Carved artifact contains 1 long hex-escaped blob(s).
`stream_003_off0000114f.bin` `ded1520fd68b91798ef4502ba393be29e6762be445da6319489229b957e57958`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x114F	17756 bytes
`font_01_sfnt_off00003f61.bin` `a8ed3909966b10c026f46212f55dce68c94667ce1ac039797d3ebfa1d644dacf`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3F61	17892 bytes

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