Malicious PDF — malware analysis report

Static analysis result for SHA-256 dab1b9c9105aeb01…

MALICIOUS

PDF

48.6 KB Created: 2009-11-06 00:19:14 +03:00 Authoring application: sLong (via 367cc8d9187529f374fde004f70061ff)
MD5: 64659c005af0057e7c8e05365ef8e06e SHA-1: 391f3b09eb3acf377c1dce324a752c81fdcea0d5 SHA-256: dab1b9c9105aeb012e03a2436fb09d8afd4c0852f1c76261ee968bcedc477c22
64 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file contains embedded JavaScript, with a high-confidence heuristic firing for an eval() call. This indicates the script is likely obfuscated and designed to execute arbitrary code. The script's purpose is to download and execute a second-stage payload, as suggested by the presence of JavaScript streams and the eval() function. The document body is heavily obfuscated and does not provide clear user-facing content, further suggesting a malicious intent behind the script execution.

Heuristics 4

  • 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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
javascript_obj0019_000.js
e61e98fd3854a226a851120e58e49ca638f49806d82961c0232a942f00b5522a
pdf-javascript-stream PDF /JS object 19 at offset 0x2E5D 4096 bytes
javascript_obj0020_001.js
b5b7846e2de8b9322b642b685f13bd0492a95e81c9d15490e2cc611e9459fd47
pdf-javascript-stream PDF /JS object 20 at offset 0xBC0A 41 bytes