Pdf.Dropper.Agent-7276037-0 — PDF malware analysis

Static analysis result for SHA-256 7ca5e3a3e26d617d…

MALICIOUS

PDF

1.4 KB
MD5: 85834efbac0c0db2a578e68a898d1067 SHA-1: 4966ddfcf7f104b882ea5e2c22bacb55e5175947 SHA-256: 7ca5e3a3e26d617d9ad44ef15e8e5589a7de8e41f406036bb694910d82d8cbc7
310 Risk Score

Malware Insights

Pdf.Dropper.Agent-7276037-0 · confidence 95%

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.007 JavaScript

The PDF file contains embedded JavaScript that exploits CVE-2009-4324 via the media.newPlayer method. The script is designed to download a second-stage payload from the URL http://landoftraffic.in/x/exe.php?src=&id=&x=pdf4. This behavior is consistent with a dropper malware.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 9

  • media.newPlayer — CVE-2009-4324 critical CVE exact CVE_2009_4324
    PDF JavaScript calls media.newPlayer — CVE-2009-4324 is a use-after-free in Adobe Reader's multimedia plugin triggered by media.newPlayer(). Actively exploited as a zero-day in December 2009. (matched in decompressed stream)
  • PDF JavaScript exploit cluster critical PDF_JS_EXPLOIT_CLUSTER
    PDF combines an executable JavaScript/action surface with exploit staging indicators such as eval/unescape/fromCharCode, XFA script content, or a related CVE pattern. Benign form JavaScript remains low-severity, but this correlated cluster is high-confidence malicious behavior.
  • ClamAV: Pdf.Dropper.Agent-7276037-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7276037-0
  • unescape() call high PDF_UNESCAPE
    unescape() found — often used to decode shellcode in PDF JS exploits (matched inside decoded stream)
  • PDF JavaScript shellcode contains an embedded download URL high PDF_JS_SHELLCODE_DOWNLOAD_URL
    Decoded PDF JavaScript shellcode contains a hardcoded http(s) URL stored as little-endian %uXXXX Unicode escapes. Reader exploit shellcode embeds the second-stage fetch URL this way and pulls it down with a urlmon/URLDownloadToFile-style download-and-execute (commodity downloader behaviour rather than a specific Acrobat CVE).
  • 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.
  • 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://landoftraffic.in/x/exe.php?src=&id=&x=pdf4

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
javascript_obj111711_000.js
ed214d008ca7f8fad0affc792159f2b30ce479dc90c5348e0751937c74ebe0c2
pdf-javascript-stream PDF /JS object 111711 at offset 0x197 291 bytes
javascript_obj111712_001.js
2727409ebdce5d1f9481698c44698ade48418085ad11fe94081d417fb0b83b93
pdf-javascript-stream PDF /JS object 111712 at offset 0x2B2 960 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 2 eval/decoder/string-building token(s).
javascript_obj111713_002.js
d2f98bec78aa096efa5aca99b701d5e6b9a8e2cf728fb7e79bf248862bacf14b
pdf-javascript-stream PDF /JS object 111713 at offset 0x50F 70 bytes
combined_document_js_000.js
d0dc3a2617ef490d0de2f3520fb35c5bc834b437e44870c2ea978b3aab6d9aa3
deobfuscated-js combined document JavaScript streams at offset 0x197 1323 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 2 eval/decoder/string-building token(s).