PDF malware analysis — malicious · e220c27cf3088e3b

MALICIOUS

PDF

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

MD5: 4e722dac84944b116500b8399a623eb9 SHA-1: 50fd7f389faef93adce023c079cc12a901c398a7 SHA-256: e220c27cf3088e3b398ae0119dafad9fa10edef111d1ad50dfd0eb80e0ee6b06

116 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious Link T1204.002 Malicious Link: Malicious File T1059.001 Command and Scripting Interpreter: PowerShell

The PDF file contains embedded JavaScript that is obfuscated and likely malicious. The critical heuristic firing for CVE-2010-0188 indicates an exploit targeting Adobe Reader's LibTIFF component via XFA forms. The extracted JavaScript, named 'xfa_metadata_stage_000.js', is highly suspicious and suggests the document's primary purpose is to exploit this vulnerability to download and execute a secondary payload. No specific malware family could be identified.

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.
Suspicious extracted artifact high 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.
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

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` `a0b526042933ed7474fc8f6bc75ff8000ee7e4d5bd39913b208d5575aabbee21`	deobfuscated-js	XFA /Title hex-XOR decoded JavaScript (raw, key=vanrxtsLKSR) at offset 0x5353	4002 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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