Malicious PDF — malware analysis report

Static analysis result for SHA-256 b79c0938e25488c9…

MALICIOUS

PDF

3.4 KB Created: 2005-09-29 09:27:34 UTC Authoring application: Adobe PDF Library 8.0
MD5: 73c7fe6b8c4bba21782818350f64604f SHA-1: 6f550369bf8b2c5e96c3645455c307d5fd635f0c SHA-256: b79c0938e25488c91d8b8d9fe955e0fc6f208bccae75a1e4e2687788a73b864a
100 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The sample is a PDF document that exploits the CVE-2010-0188 vulnerability, which targets Adobe Reader's XFA form processing. This exploit allows for arbitrary code execution. No document body text was available for analysis, but the critical heuristic firing directly indicates the exploit mechanism.

Heuristics 6

  • Adobe Reader LibTIFF XFA image exploit — CVE-2010-0188 critical CVE likely CVE_2010_0188
    PDF contains XFA image data with an inline crafted TIFF payload and shellcode/delivery markers. This is the data-bound variant of the CVE-2010-0188 Adobe Reader LibTIFF/XFA exploit shape.
  • 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.
  • 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

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0004.bin
a491c313f1ee0c1c25b31a4a8924a0fd682ba66d1d1641bf53cffce742aa62e0
pdf-embedded-file PDF EmbeddedFile object 4 at offset 0x1C6 35879 bytes