Malicious PDF — malware analysis report

Static analysis result for SHA-256 230430473d80a9d7…

MALICIOUS

PDF

4.0 KB
MD5: 482f7eb2a1ffec2ea27f83ab86c45d28 SHA-1: 2ac32b1c97e3fd6a64bfbb0c64de0cc15ae4c0ed SHA-256: 230430473d80a9d79d0134a466d962b685a9a80b8d1d0b16858e78dfcba9b00a
218 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution T1566.001 Phishing: Spearphishing Attachment

The PDF file contains an embedded TIFF image that exploits CVE-2010-0188 in Adobe Reader. This is a known vulnerability that allows for arbitrary code execution when the PDF is opened. The ClamAV detection 'Pdf.Exploit.Pidief-3' further confirms the malicious nature of the file. The attack pattern involves tricking a user into opening a malicious PDF, leading to the exploitation of the reader software.

Heuristics 7

  • 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.Pidief-3 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Pidief-3
  • 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.
  • ASCIIHexDecode filter (with exploit indicators) medium PDF_FILTER_HEX
    Hex-encoding filter present alongside exploit delivery indicators — often used to hide payload or shellcode bytes
  • 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
  • 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_obj0001.bin
2382e61bb8f4a1a278dba714c677cf2f5abc14c6e2c0fa8307e159634914e2a2
pdf-embedded-file PDF EmbeddedFile object 1 at offset 0x6C 13441 bytes
Detection
ClamAV: Pdf.Exploit.Pidief-3
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).