PDF / .EXE malware analysis — malicious · 8f27c39720ddb112

MALICIOUS

PDF / .EXE

43.3 KB

MD5: 208baea54e43c29cfef3fc9ac8afc5f9 SHA-1: c1d39cbd2985a23c1bc3510e96d02f6995c1f40d SHA-256: 8f27c39720ddb112a6c5317ff7750f873d7cbb21372b386a0cb005552ec56ab6

66 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1059.001 PowerShell

The PDF file contains embedded JavaScript and U3D content, with heuristics indicating a CVE-related exploit targeting Adobe Reader's 3D parsing capabilities. The presence of multiple JavaScript files, including a large deobfuscated one, suggests the execution of malicious code. The primary attack vector appears to be leveraging a known vulnerability to achieve code execution.

Heuristics 5

U3D/3D content in PDF — Adobe Reader 3D parser CVE-family indicator high CVE related PDF_U3D_CVE_RELATED

PDF contains U3D (Universal 3D) or 3D annotation content — CVE-2011-2462 and CVE-2009-3953 are critical vulnerabilities in Adobe Reader's U3D processing that allow arbitrary code execution. U3D content in PDFs is extremely rare in normal documents.
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.
syncAnnotScan annotation-staging primitive low PDF_FOXIT_SYNCANNOTSCAN

PDF JavaScript calls syncAnnotScan() — a no-op annotation-enumeration primitive used by exploit-kit JavaScript to stage payload reads from annotation /Subject fields before eval(). Not a vulnerable sink itself; rarely seen in legitimate PDFs. (matched in decompressed stream)
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 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0005_000.js` `e98d2ee473b9a16751401b2efe1ab53561db61f4b1f06b39437a60319734e8ab`	pdf-javascript-stream	PDF /JS object 5 at offset 0x14F	479 bytes
`legacy_pdfkit_stage_000.js` `129f432f6ba99b09ad81e8580af53c322890499334b683275d29aa7a41771a36`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x1B72	13064 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).
`deobfuscated.js` `2bbab970ade00c9efaa55f341f745f365cd4126d85fb8d0d0cbf8d8be664d1bf`	deobfuscated-js	PDF JavaScript deobfuscation pass	211965 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`u3d_00_off000040ea.bin` `fb27c6f6ffe2b08a88f79f344ef3cb4f85460ac81a062194b6fd84ab6e48b628`	pdf-3d-stream	PDF U3D 3D stream at offset 0x40EA	28021 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact entropy is 7.79, consistent with packed or encrypted content.

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