PDF malware analysis — malicious · ced287e4f9af1842

MALICIOUS

PDF

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

MD5: faa6c0d2c08da534280c197cfde12458 SHA-1: 76689f666b5f7325c11a4f12ba7a4b7f8f98c758 SHA-256: ced287e4f9af1842d5dd30b9bb66d8e43d3131a4e6f528e8f3a681c8529d6a4e

78 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.001 PowerShell

The PDF sample exploits CVE-2010-0188, a vulnerability in Adobe Reader related to XFA forms. The heuristic analysis indicates that the exploit targets JavaScript embedded within the XFA form. A deobfuscated JavaScript file, 'xfa_metadata_stage_000.js', was extracted, suggesting the script is responsible for executing the exploit payload. The exact nature of the payload is not detailed, but the exploit itself is the primary attack vector.

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` `191709915ccda4773be4118092be5b317281ee31b329b4f8b9c2a6aeff1d5a7d`	deobfuscated-js	XFA /Title hex-XOR decoded JavaScript (raw, key=vanrxtsLKSR) at offset 0x5353	4114 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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