PDF malware analysis — malicious · c890b34ce7cee81f

MALICIOUS

PDF

11.0 KB

MD5: 7e346d90d6b46654d153f47437a00c16 SHA-1: bb487ebc7f7b48980faad670ab84dc8a1cec3c6e SHA-256: c890b34ce7cee81fa59523d89f0c1dd85d40d8de20242052717652116fff5b29

86 Risk Score

Malware Insights

The PDF file contains an embedded JavaScript file that exploits CVE-2010-0188 in Adobe Reader. This exploit is designed to download and execute a second-stage payload. The presence of an embedded file and an XFA form further supports the malicious nature of this document. The embedded URL is likely related to the exploit's functionality.

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 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
AcroForm button with action trigger low PDF_ACROFORM_BUTTON

PDF contains a /Btn form field together with a SubmitForm/URI/Launch/JS trigger — this is the building block of fake 'Download' or 'Open' button overlays used in PDF phishing lures
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.
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.

URL http://www.xfa.org/schema/xfa-locale-set/2.1/

Extracted artifacts 6

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_file_obj0041.bin` `c06dcd026a7ea0536b63e07ce688691b585339a3ab7ff59065e546b56308c7bb`	pdf-embedded-file	PDF EmbeddedFile object 41 at offset 0xEE4	85 bytes
`embedded_file_obj0042.bin` `dda0835df994b8be920f715db36452f6cee7bb42bbc9c897f878a7b298ba8e91`	pdf-embedded-file	PDF EmbeddedFile object 42 at offset 0xF96	1029 bytes
`embedded_file_obj0095.bin` `ec4a658e1914dd0ceee6ea15e14f7b6ed71a6fb8f2a94077ef132bc710a28440`	pdf-embedded-file	PDF EmbeddedFile object 95 at offset 0x11AF	12694 bytes
`embedded_file_obj0044.bin` `3dd68f00f4fcb366a2a3a17c65cb2626eeddf5ea5713302d374310561d810169`	pdf-embedded-file	PDF EmbeddedFile object 44 at offset 0x2689	144 bytes
`embedded_file_obj0045.bin` `10c03f88a5f0a0833dc5b2c8ac295b3a3c6f65e23889eb8cc1dc6fe29bf7f275`	pdf-embedded-file	PDF EmbeddedFile object 45 at offset 0x2736	77 bytes
`base26_stage_000.js` `eb0bcaf79aac33c112b4fede7edfb0fbbf174f1cb1093b5eb264964c9d0f6f7b`	deobfuscated-js	base26-decoded JavaScript (decompressed) at offset 0x13A5	4364 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s). Carved artifact contains 5 long base64-like blob(s).

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