PDF / .PHP malware analysis — malicious · 1754b662344ee11d

MALICIOUS

PDF / .PHP

9.8 KB

MD5: c7e884cc54bf639bbe4684069412f135 SHA-1: 751a7ff1d658531b434de558fc1e6eae4b5778d5 SHA-256: 1754b662344ee11de76c57d5e52a31195f181bac4434f3d3e3972aa246bb6693

160 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1027 Obfuscated Files or Information

The PDF file exhibits high-severity heuristic firings for JavaScript obfuscation and eval/unescape calls, indicating malicious intent. The embedded JavaScript stream, named 'javascript_obj0116_000.js', is the primary artifact. While the exact payload is not directly visible due to obfuscation, the presence of these indicators strongly suggests the script's purpose is to download and execute a second-stage payload. The ClamAV detection further corroborates the malicious nature of the file.

Heuristics 7

ClamAV: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTION

ClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits (matched inside decoded stream)
JavaScript action low PDF_JAVASCRIPT

PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
Embedded JS stream low PDF_JS

PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED

The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PSSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
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
`javascript_obj0116_000.js` `bba7c791d487fe9161143f3f13d819569eb1fdfa64d10dca45fb1eb77f2d9805`	pdf-javascript-stream	PDF /JS object 116 at offset 0x4BB	36274 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 175 eval/decoder/string-building token(s).

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