PDF malware analysis — malicious · 8ead4376dd997757

MALICIOUS

PDF

11.7 KB

MD5: 3b37818573b844388c5cd832f28d7154 SHA-1: df9e3c16fad41e03c07eddc7b433a77069dbd65a SHA-256: 8ead4376dd997757dbace3d5459ad352e660bc3879ce397d7f56c8ee45f1955b

124 Risk Score

Malware Insights

The PDF file contains an embedded JavaScript file that is obfuscated and likely serves as a second-stage payload. The critical heuristic firing for CVE-2010-0188 indicates a known exploit for Adobe Reader, suggesting the document is designed to leverage this vulnerability to execute the embedded script. The script itself is too large and complex to fully analyze statically, but its presence and the exploit firing strongly indicate a malicious intent to compromise the user's system.

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.
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
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
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` `3a216f68b7661f42f09127313503d5ff56f4cac0c4c19797b515d30fac6cc6ee`	pdf-embedded-file	PDF EmbeddedFile object 95 at offset 0x11AF	13944 bytes
`embedded_file_obj0044.bin` `3dd68f00f4fcb366a2a3a17c65cb2626eeddf5ea5713302d374310561d810169`	pdf-embedded-file	PDF EmbeddedFile object 44 at offset 0x297E	144 bytes
`embedded_file_obj0045.bin` `10c03f88a5f0a0833dc5b2c8ac295b3a3c6f65e23889eb8cc1dc6fe29bf7f275`	pdf-embedded-file	PDF EmbeddedFile object 45 at offset 0x2A2B	77 bytes
`base26_stage_000.js` `b8a43762f791f93b4d0945cb5c514c1149c401bb2e9b0713ecf3f0e4d5d8c1cd`	deobfuscated-js	base26-decoded JavaScript (decompressed) at offset 0x13A5	4864 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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