PDF malware analysis — malicious · d6c999e9279765f8

MALICIOUS

PDF

109.1 KB

MD5: d143a09611c45ac34ff0f85cc5efcc2e SHA-1: a2378a47bf084a155974b6fd20559732ecac1608 SHA-256: d6c999e9279765f8924ed91422370193ea6ef856b2478513013bb3b75114f1c5

154 Risk Score

Malware Insights

The PDF sample contains multiple embedded JavaScript streams and triggers a critical heuristic for the CVE-2010-2883 Adobe Reader CoolType SING font exploit. The presence of JavaScript and the exploit indicate the document is designed to execute malicious code. The embedded JavaScript files are likely responsible for downloading and executing a secondary payload, contributing to the overall malicious intent of the document.

Heuristics 8

Adobe Reader CoolType SING font exploit — CVE-2010-2883 critical CVE likely CVE_2010_2883

PDF embeds a TrueType/OpenType font with an actual SING table and pairs it with JavaScript heap-spray shellcode. This matches the public Adobe Reader CoolType SING exploit shape for CVE-2010-2883.
RichMedia (Flash) high PDF_RICHMEDIA

PDF contains /RichMedia (Adobe Flash) which is a historic exploit vector
ASCIIHexDecode filter (with exploit indicators) medium PDF_FILTER_HEX

Hex-encoding filter present alongside exploit delivery indicators — often used to hide payload or shellcode bytes
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.
Embedded file low PDF_EMBEDDED

PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
XFA form low PDF_XFA

PDF uses XML Forms Architecture — can contain script logic
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 7

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0029_000.js` `26338b2a519acba0865d62cad26dcc8b2cb919eaeb84efbb8052360a7e30c7fe`	pdf-javascript-stream	PDF /JS object 29 at offset 0x19141	19428 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 long base64-like blob(s).
`javascript_obj0038_001.js` `2c0b66ec50073178ddc3de2aaf0627ef83819a8f71c118ff3b075b4bd82749fe`	pdf-javascript-stream	PDF /JS object 38 at offset 0x1BA7	1242 bytes
`javascript_obj0039_002.js` `6925014a3c2c6b64ae3000282d91544e3f9bbc49b7fdc6b0421ea04d61e8240a`	pdf-javascript-stream	PDF /JS object 39 at offset 0x2170	3698 bytes
`javascript_obj0056_003.js` `b35586f41dc9bb7f36829c9115c66a5e45a54a10033eeeda509eead818997470`	pdf-javascript-stream	PDF /JS object 56 at offset 0x301E	1035 bytes
`stream_004_off00000b11.bin` `69e17a0038b9273e6d005ef52313a832cb41b9cf9713d6134d0cf9f2e59298a7`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0xB11	434 bytes
`font_00_sfnt_off00001177.bin` `fc85f44193ccd402987935418c4f5fdf6802c96450b789e7fce04f9791933021`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1177	7965 bytes
`font_01_sfnt_off00001928.bin` `1e827515a464087cdace63e3578c118b45a657ed40cdbb9de7eead35c9b593ba`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1928	7965 bytes

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