PDF / .TMP malware analysis — malicious · 85485049448dd3fe

MALICIOUS

PDF / .TMP

1.95 MB Created: 2010-01-25 14:42:02 +03:00 Authoring application: comesOneWeb (via 296add4760393dc63707e407affcbc84)

MD5: 778b653cf646979a0aba48a55ad9c714 SHA-1: 9131b4d0fd164feea4c531dc179e0e8a7f99b2b7 SHA-256: 85485049448dd3feb9d76cedff51997945ec10ee75ae1709999120c1459d17fa

134 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The critical ClamAV detection and multiple PDF-specific heuristics, including PDF_JAVASCRIPT, PDF_JS, PDF_EVAL, and PDF_FILTER_85, indicate that this PDF is designed to exploit vulnerabilities. The presence of embedded JavaScript, particularly the use of eval(), strongly suggests that the script is intended to download and execute a second-stage payload. The file's metadata and the ClamAV signature 'Pdf.Exploit.Agent-13149' further support its malicious nature.

Heuristics 7

ClamAV: Pdf.Exploit.Agent-13149 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-13149
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.
ASCII85Decode filter (with exploit indicators) low PDF_FILTER_85

ASCII85 encoding filter present alongside exploit delivery indicators — uncommon outside of obfuscation
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_obj0024_000.js` `5e302fea483b353b553f99761660a7a1cf3582e68dca6ee03eda90c564b6ec09`	pdf-javascript-stream	PDF /JS object 24 at offset 0x2E52	37296 bytes
`javascript_obj0026_001.js` `69b8d2ed62180e70a1eda6075231352c1b4165f7c09dff1f0b3978e973a9abef`	pdf-javascript-stream	PDF /JS object 26 at offset 0x8FC7	1521 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

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