PDF malware analysis — malicious · bd6b91d14919135f

MALICIOUS

PDF

29.6 KB Created: 2012-12-11 17:01:31 Authoring application: pgvdttsdhcgam (via waymhnpjmjprfv)

MD5: d0cc62356bc1a3aaf4f98e8c77ec2c04 SHA-1: 38fc0a8544eb0fc6a41591b16ac644c98fd4cc3f SHA-256: bd6b91d14919135f154331f2ba073c83a7b413a18dc89a8e7161e212691fca5b

78 Risk Score

Malware Insights

The PDF file contains embedded JavaScript that is triggered by the CVE-2010-0188 exploit, targeting Adobe Reader. The extracted JavaScript, named 'xfa_metadata_stage_000.js', is heavily obfuscated but indicates an attempt to download and execute a second-stage payload. The presence of XFA forms and embedded files further supports the exploit delivery mechanism.

Heuristics 4

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 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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_file_obj0010.bin` `f5fada8101d0364117b2454492c05b64911df9d040cddf613d50212da6228859`	pdf-embedded-file	PDF EmbeddedFile object 10 at offset 0x12A2	10740 bytes
`stream_011_off000041c0.bin` `392d4f07be91edcc9359ef94bc01fc8fbd40fa048af13b58bb9eb28874772ed6`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x41C0	209 bytes
`xfa_metadata_stage_000.js` `85eac6edda0c0a86df8a3c7fb058d50ecc135d1d2bd6d36c90b6155e1ff25f4a`	deobfuscated-js	XFA /Title hex-XOR decoded JavaScript (raw, key=vanrxtsLKSR) at offset 0x5353	4082 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 6 eval/decoder/string-building token(s). Carved artifact contains 3 long base64-like blob(s).

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