Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc150f537d6ce3fc…

MALICIOUS

PDF

5.1 KB Created: 2013-10-09 16:18:28
MD5: 95a5ab425d87c6d111286c9cf07b5f60 SHA-1: b71150f6274f5bf51d0f2b27a19d37299d9cb804 SHA-256: bc150f537d6ce3fc15a94c862680520e26476241a88f16e2df97997c38fc3dd0
156 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.001 Malicious Link: Malicious Link T1204.002 Malicious Link: Malicious File

The critical ClamAV heuristic firings indicate the presence of the CVE-2010-0188 exploit within the PDF. This exploit is known to target PDF readers to execute arbitrary code. The embedded file further supports the delivery of a malicious payload. The document body is unreadable, but the exploit and embedded artifact strongly suggest a malicious intent to compromise the user's system.

Heuristics 5

  • ClamAV: Pdf.Exploit.CVE_2010_0188-10 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.CVE_2010_0188-10
  • ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV
    ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
  • Embedded script payload in PDF stream medium PDF_EMBEDDED_SCRIPT_PAYLOAD
    PDF stream bytes contain an HTML/XFA <script> tag without accompanying Windows shell-execution primitives — common in accessible XFA forms but worth surfacing for analyst review.
  • 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

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0004.bin
44f9c074a0142e9e069acd1ea8c45a7641b047ec302394bafd40d95739e2da1f
pdf-embedded-file PDF EmbeddedFile object 4 at offset 0x45D 14694 bytes
Detection
ClamAV: Pdf.Exploit.CVE_2010_0188-10
Obfuscation or payload: unlikely