PDF malware analysis — malicious · 7bbdb95d6e318b61

MALICIOUS

PDF

9.6 KB Created: 2009-02-19 14:45:49 -02:00 Authoring application: Writer (via OpenOffice.org 3.0)

MD5: 03a174a0a0e648c8041d4b9a1dcbd722 SHA-1: d7fc3f2cc9dda082153435cd3d81f784b60d0aaa SHA-256: 7bbdb95d6e318b61a1c890e55cb053c06c10d2d706b7e287d60e671e7924a3b6

98 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT, PDF_JS, and PDF_EVAL. The `eval()` call within the JavaScript stream suggests obfuscation and dynamic code execution. The presence of a 'Launch action' further points to an attempt to execute external code. The extracted artifact `javascript_obj0027_000.js` is likely the payload. The overall intent appears to be downloading and executing a second-stage payload.

Heuristics 5

Launch action high PDF_LAUNCH

PDF contains a /Launch action with an unresolved or extension-less target — treat as potentially dangerous
eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution (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.
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_obj0027_000.js` `dec42183f69b1c9993089683cb7989a149ebb00d11b8df940462930eb9dd8f6c`	pdf-javascript-stream	PDF /JS object 27 at offset 0x1C1B	3229 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

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