Malicious PDF — malware analysis report

Static analysis result for SHA-256 e70fee195dc55a3a…

MALICIOUS

PDF

313.4 KB Created: 2010-05-29 10:02:45 +08:00
MD5: 7e3420caa40e0b1babc227948c860f60 SHA-1: 1f7e403a0b1849f4a310b9aaf897aa09688141e7 SHA-256: e70fee195dc55a3aef0389661f115adff0e2242eb546d072d60622f1b32f5159
66 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 JavaScript/JScript T1204.002 Malicious File

The PDF file contains embedded JavaScript and RichMedia (Flash) content, indicating an attempt to exploit vulnerabilities. The presence of JavaScript actions and embedded streams strongly suggests the execution of malicious code. While specific URLs are benign, the overall structure points to a malicious PDF designed to deliver a payload.

Heuristics 6

  • RichMedia (Flash) high PDF_RICHMEDIA
    PDF contains /RichMedia (Adobe Flash) which is a historic exploit vector (matched inside decoded stream)
  • 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. (matched inside decoded stream)
  • 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. (matched inside decoded stream)
  • Embedded file low PDF_EMBEDDED
    PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload (matched inside decoded stream)
  • PDF paints image(s) but contains no text operators info PDF_IMAGE_ONLY_LURE
    PDF has 2 image XObject(s) and the content stream contains no text-emitting operators (BT/ET, Tj, TJ, ', ") in either raw bytes or decompressed streams — this is the screenshot-as-PDF pattern used to bypass text-based scanners and to deliver instructions purely through rendered pixels. It is informational unless paired with invisible links or risky URI context.
  • 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://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://ns.adobe.com/xap/1.0/
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/pdf/1.3/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
objstm_0036_00.bin
295a736faab1222e78cd714aacb5aa19d1c6ba35a7f57eff41a95d7e7f857063		 pdf-objstm-decoded PDF /ObjStm 36 0 obj (inflated) 2130 bytes

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