PDF malware analysis — malicious · 2b50253ebaf77ba4

MALICIOUS

PDF

5.1 KB Created: 2003-03-03 59:56:01

MD5: 2c4f0f406415d1513e64b94e28e1af4f SHA-1: f0a04c1f4985290886398c1e92608c1c3fad2fdc SHA-256: 2b50253ebaf77ba4ded2bd4c13f6fd479a322dc381f640798bb4d9921c423e72

102 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1059.001 PowerShell

The sample is a PDF document that leverages the CVE-2010-0188 vulnerability in Adobe Reader's LibTIFF processing. A JavaScript payload was extracted from a decompressed stream, indicating the document is designed to download and execute a second-stage payload. The presence of embedded files and scripts strongly suggests a malicious intent, likely for further infection.

Heuristics 6

Adobe Reader LibTIFF XFA image exploit — CVE-2010-0188 critical CVE likely CVE_2010_0188

PDF contains the CVE-2010-0188 exploit template: XFA JavaScript heap-spray setup, a generated TIFF image payload, and assignment of that TIFF data to an XFA image field rawValue to trigger Adobe Reader's LibTIFF parser.
Embedded script payload in PDF stream medium PDF_EMBEDDED_SCRIPT_PAYLOAD

PDF stream bytes contain an HTML/XFA <script> tag without accompanying Windows shell-execution primitives — common in accessible XFA forms but worth surfacing for analyst review.
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
PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED

The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
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
`embedded_file_obj0029.bin` `22ba8d36275f7ba7a472f4ee9c3a5c3bff64bf67d9f0b4d1bc21adadc9b99276`	pdf-embedded-file	PDF EmbeddedFile object 29 at offset 0x2BF	162 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`stream_003_off000003a9.js` `d6bcd06a6bb5bc0ee236defdf48d89af649ce634e7e9c602ed18036b39289aa7`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x3A9	44254 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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