PDF malware analysis — malicious · 7d531a9e68bb5498

MALICIOUS

PDF

17.1 KB Created: 2010-03-12 06:19:29 Authoring application: YRvwABaPqO (via RQSdWsboLuPH)

MD5: bc5c55173daf84d3952194a6e8da0b81 SHA-1: bcc56bbfdc5e62285e961247ed4523e6c5a50e73 SHA-256: 7d531a9e68bb54986ea0226fa302e061a3286710328462e8f29f3b4ff9e8a595

66 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 JavaScript stream utilizes `eval()` and `String.fromCharCode` for obfuscation, suggesting an attempt to hide malicious code. This script is likely designed to download and execute a second-stage payload. The presence of obfuscated JavaScript and the `eval()` call strongly indicate a malicious intent to compromise the user's system.

Heuristics 5

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.
String.fromCharCode low PDF_FROMCHARCODE

String.fromCharCode found — used to construct payload strings dynamically. Common in benign JavaScript libraries for codepoint manipulation, so this alone is informational; weaponised use is also caught by the dedicated fromCharCode-stage and exploit-shape 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_obj0007_000.js` `93e52f56a52e2aa1241b410d3683e5272889bd3028213b655c919ffb377f6977`	pdf-javascript-stream	PDF /JS object 7 at offset 0x236	16263 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s).

Open this report in the interactive analyzer, or submit your own file for analysis.