PDF static analysis report

Static analysis result for SHA-256 04f6eab277fe21e1…

SUSPICIOUS

PDF

32.3 KB Created: 2011-04-12 19:13:42 -04:00 Authoring application: Writer (via OpenOffice.org 2.4) First seen: 2013-05-18
MD5: 104e20af1497e4e95fbee8d01dc12c1a SHA-1: aed22aeaea864b8d8185cb66b8164f8fba291bcf SHA-256: 04f6eab277fe21e1582f9a5d6fd7ce866761826263a728e9577d27f0b944a0ad
56 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The PDF contains embedded files and an XFA form, which are common vectors for exploiting vulnerabilities. The ML classifier strongly indicates malicious intent, likely to download and execute a second-stage payload. No specific URLs or scripts were extracted to further detail the attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9987

Heuristics 4

  • Embedded file low PDF_EMBEDDED
    PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
  • XFA form low PDF_XFA
    PDF uses XML Forms Architecture — can contain script logic
  • AcroForm button with action trigger low PDF_ACROFORM_BUTTON
    PDF contains a /Btn form field together with a SubmitForm/URI/Launch/JS trigger — this is the building block of fake 'Download' or 'Open' button overlays used in PDF phishing lures
  • 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://ns.adobe.com/xdp/ In PDF document text
    • http://www.xfa.org/schema/xci/1.0/In PDF document text
    • http://ns.adobe.com/xtd/In PDF document text
    • http://www.xfa.org/schema/xfa-data/1.0/In PDF document text
    • http://ns.adobe.com/xfdf/In PDF document text
    • http://www.xfa.org/schema/xfa-form/2.8/In PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 7

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0020.bin pdf-embedded-file PDF EmbeddedFile object 20 at offset 0x4685 28445 bytes
SHA-256: 2b1995763988d58507e12f6cd2a1f4e5f2cbae30d2686c5c1f132ac27feb9ad5
embedded_file_obj0018.bin pdf-embedded-file PDF EmbeddedFile object 18 at offset 0x79D7 84 bytes
SHA-256: d81baa73e490e4cb879e13927cacd1dd1be37524a37eac51603e15117c578777
embedded_file_obj0019.bin pdf-embedded-file PDF EmbeddedFile object 19 at offset 0x7A89 228 bytes
SHA-256: 24c130f03a4cf51d470b536e94c1e58af67665739e200e0ce198ad41086243c0
embedded_file_obj0021.bin pdf-embedded-file PDF EmbeddedFile object 21 at offset 0x7B7A 199 bytes
SHA-256: c97e0522381d6196cc0695f35f4d065f15c9c86a9601a7f776c6afd3f4c6b460
embedded_file_obj0022.bin pdf-embedded-file PDF EmbeddedFile object 22 at offset 0x7C6B 119 bytes
SHA-256: 846dfecc0c93797cb6db4301f6af323fffd76ffdf8c053c439495412785138e7
embedded_file_obj0023.bin pdf-embedded-file PDF EmbeddedFile object 23 at offset 0x7D23 77 bytes
SHA-256: e6c26a3478346d27e841ad49868ebf68bf4c6863b6750e8d60bda3c4c6f79876
embedded_file_obj0024.bin pdf-embedded-file PDF EmbeddedFile object 24 at offset 0x7DCA 56 bytes
SHA-256: 92a3ce61d783e15932b5de127ce45a9b4c2f98f4da2453f65241573c1dda808a

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