PDF malware analysis — malicious · de2f17bfa25a7985

MALICIOUS

PDF

14.1 KB

MD5: f5511c73c0f90a67667302972e4a0ef2 SHA-1: 60d9515b4d5ce0963d42cf679beb35016834321d SHA-256: de2f17bfa25a7985404db2614ab903ccdf1bb208bc5a69f77599687eb5260b74

146 Risk Score

Malware Insights

The file is a PDF document that leverages the CVE-2010-0188 exploit targeting Adobe Reader's XFA forms. A deobfuscated JavaScript file, xfa_metadata_stage_000.js, was extracted and likely contains the malicious payload. This script is responsible for downloading and executing further stages of the attack. The embedded URL is likely related to the exploit's functionality.

Heuristics 7

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.
ClamAV: Pdf.Exploit.Agent-36962 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36962
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 0x2B04	85 bytes
`embedded_file_obj0042.bin` `dda0835df994b8be920f715db36452f6cee7bb42bbc9c897f878a7b298ba8e91`	pdf-embedded-file	PDF EmbeddedFile object 42 at offset 0x2BB6	1029 bytes
`embedded_file_obj0043.bin` `5425de953795a6656acdba52a452c8d40561b7ea1ddc5cfe006ef40a59790997`	pdf-embedded-file	PDF EmbeddedFile object 43 at offset 0x2DCF	1821 bytes
`embedded_file_obj0044.bin` `3dd68f00f4fcb366a2a3a17c65cb2626eeddf5ea5713302d374310561d810169`	pdf-embedded-file	PDF EmbeddedFile object 44 at offset 0x320C	144 bytes
`embedded_file_obj0045.bin` `10c03f88a5f0a0833dc5b2c8ac295b3a3c6f65e23889eb8cc1dc6fe29bf7f275`	pdf-embedded-file	PDF EmbeddedFile object 45 at offset 0x32B8	77 bytes
`xfa_metadata_stage_000.js` `45e7bbe146b6bc076c25744d8e57c8e94461affa6552d92c60931b26079188e6`	deobfuscated-js	XFA /subject base-26 decoded JavaScript (raw) at offset 0xE4D	2208 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s). Carved artifact contains 3 long base64-like blob(s).

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