Malicious PDF — malware analysis report

Static analysis result for SHA-256 bea7e88c5c64d8b8…

MALICIOUS

PDF

3.0 KB Created: 2005-09-29 09:27:34 UTC Authoring application: Acrobat Distiller 8.1.0 (Windows)
MD5: 7aa6149e4c56a486191fc75bb96d738c SHA-1: a56f40ad93b9ae1fdf25c2f5c4ee7c6113745c0e SHA-256: bea7e88c5c64d8b84fe978834e58383da84f0fd4d530621c05c55c7068dd9eaa
162 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious File T1204.002 Malicious File: Malicious Attachment T1566 Phishing T1566.001 Phishing: Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF file contains embedded JavaScript and an embedded file, indicating a malicious intent. It is flagged by ClamAV as Pdf.Exploit.Agent-36015 and specifically targets CVE-2010-0188, an Adobe Reader LibTIFF XFA image exploit. The embedded file, 'embedded_file_obj0004.bin', is likely the delivered payload.

Heuristics 8

  • 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.
  • ClamAV: Pdf.Exploit.Agent-36015 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36015
  • 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
  • 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.

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0004.bin
e35b7476b7e96e442133b4596ec917913542e85a42efab3db40a13343f63b645
pdf-embedded-file PDF EmbeddedFile object 4 at offset 0x1D5 12826 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).