PDF malware analysis — malicious · c0701088af742c05

MALICIOUS

PDF

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

MD5: 768534be49d5bede4740c45054367280 SHA-1: b294412b9ef5f9a28d622e17fcc5a47119c12413 SHA-256: c0701088af742c05d5a1d58205d5eb368ce93b4a0def2a74a8cffde6ec869fdc

78 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1566.002 Spearphishing Attachment

The critical ClamAV heuristic firing indicates this PDF is recognized as a known exploit, specifically 'Pdf.Exploit.Agent-36874'. The presence of XFA forms and AcroForm buttons further suggests a structure designed for exploitation. The file likely attempts to download and execute a second-stage payload, as indicated by the suspicious extracted artifact.

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` `66dd883922c34e89c2e4cf5a7fef01949d76661265af3be866c7695dc4d8ad40`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x8ED	1389 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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