PDF malware analysis — malicious · 2e9724932511e7c7

MALICIOUS

PDF

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

MD5: 6581640878f7432078da6fbd17302089 SHA-1: 4921cc974568632bc98e1a041d50405db0828cbf SHA-256: 2e9724932511e7c70bce531bf95ca15064dae0c81e1aefef5fb6a5f3d27e0e9d

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 a known PDF exploit. The presence of XFA forms and AcroForm buttons with action triggers further suggests malicious intent, likely to exploit a vulnerability within the PDF reader. The extracted document body contains garbled text, which is common in obfuscated exploit documents.

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` `884cc2409478d30a6054c981a9816e224cd359287f3fcbd1fb3ab3b22a7b2a86`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x8ED	1376 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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