PDF malware analysis — malicious · 9dcc38584da359f5

MALICIOUS

PDF

33.6 KB Created: 2010-01-07 17:44:17 +03:00 Authoring application: dummyMakeVery (via 70ba980356d834b5d3ca215040c64e2f)

MD5: 5f18f5a0ed10ec5f42eb76db430eb5cb SHA-1: 7786b784c714061633cd61aded24320f54b2cb4f SHA-256: 9dcc38584da359f5b20b4ef55fa56c3e4205dffb89e02e49e9b536ae26e7376a

126 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The presence of an eval() call within the JavaScript (PDF_EVAL) strongly suggests code obfuscation and execution. ClamAV detection as 'Pdf.Dropper.Agent-7287038-0' further confirms its malicious nature. The primary function of the embedded script appears to be downloading and executing a secondary payload, a common technique for dropper malware.

Heuristics 6

ClamAV: Pdf.Dropper.Agent-7287038-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-7287038-0
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.
Optional Content Group with action trigger low PDF_OPTIONAL_CONTENT

Optional Content Group (layer) co-occurs with an action trigger — content can be selectively hidden from viewers or scanners while the action still fires on open
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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0014_000.js` `23689aac05703e8742ff18386551172c0897485121ba64f6ba1297c075cca37a`	pdf-javascript-stream	PDF /JS object 14 at offset 0x1C2D	37058 bytes
`javascript_obj0016_001.js` `81aee299f8da5f90a2f91cf77c5fe3667d9d04bee2b4b7befa65ae67b2432dcc`	pdf-javascript-stream	PDF /JS object 16 at offset 0x7ADC	1758 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

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