PDF malware analysis — malicious · ceeac2d355ef2170

MALICIOUS

PDF

136.8 KB Created: 2011-09-08 05:03:17 Authoring application: FPDF 1.6

MD5: 4a7255a5c86dff4258846faf09d007c1 SHA-1: 72c721a61aed0a6f93c3c50d5d3de34ffed370c8 SHA-256: ceeac2d355ef21707c48b7a82070bdf643ccb4916a15e3df1669a350f3f1df8f

78 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious File

The file is a PDF document identified by ClamAV as Pdf.Exploit.Agent-36874, indicating it contains a known exploit. The presence of an XFA form and an AcroForm button with an action trigger further suggests malicious intent, likely to execute an embedded exploit. The extracted artifact 'stream_001_off000008ed.bin' is a suspicious, long encoded blob, consistent with a dropped payload.

Heuristics 4

ClamAV: Pdf.Exploit.Agent-36874 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36874
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.

Filename	Kind	Source	Size
`stream_001_off000008ed.bin` `3a793cd491408d68c4384f108ea683f64c91f18e21f88ebc1636970cbdc081d7`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x8ED	1420 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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