Malicious PDF — malware analysis report

Static analysis result for SHA-256 42dda22c57e519a3…

MALICIOUS

PDF

2.6 KB
MD5: 953c941e9c5452e48143ee064faa49c1 SHA-1: 4ae8aaa12a6e02255f036bfa14a23b162c3aa869 SHA-256: 42dda22c57e519a37071863e3723313cce38b75eaab268deea0c15aa1e5d3e9c
138 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1566.001 Spearphishing Attachment

The PDF file contains an embedded malicious object that exploits CVE-2010-0188, a known vulnerability in Adobe Reader related to LibTIFF XFA image processing. This exploit is designed to execute a dropped payload, as indicated by the ClamAV detection 'Pdf.Exploit.Dropped-90' and the presence of a suspicious embedded file. The attack pattern is consistent with a malicious document designed to compromise the user's system upon opening.

Heuristics 5

  • 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.Dropped-90 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Dropped-90
  • 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
47be11a3f1b4d400e91c5ab565d1b5cc56cff60fdd5b6034938f9bdb23f47132
pdf-embedded-file PDF EmbeddedFile object 1 at offset 0x5D 13415 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).