PDF malware analysis — malicious · fe753ffe6c92a75f

MALICIOUS

PDF

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

MD5: 8315fb0ae5fbc83db3f6bd4a6fb3c1f0 SHA-1: c7c30136f74702ef78ab44dd395ce09d36290352 SHA-256: fe753ffe6c92a75f2fbbf80ec4deda018d15c81a3aecdd1cf5f14844a953df30

78 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.001 PowerShell

The sample is a PDF document that contains a critical heuristic indicating exploitation of CVE-2010-0188, a vulnerability in Adobe Reader related to XFA forms. The extracted JavaScript, named 'xfa_metadata_stage_000.js', is deobfuscated and likely contains code to download and execute a second-stage payload. The presence of XFA forms and embedded files further supports this 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` `ecbf398c6e75d256f571bc8851a1c63ac931b3c6ca8299601b02d6727617ed3a`	deobfuscated-js	XFA /Title hex-XOR decoded JavaScript (raw, key=vanrxtsLKSR) at offset 0x5353	4066 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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