PDF malware analysis — malicious · e01303db91a28aae

MALICIOUS

PDF

9.6 KB

MD5: 7d6d296c0911c2a829cc7f4ec37f28fb SHA-1: 0e0a2c8e842df19e3444afac04c97b194924d365 SHA-256: e01303db91a28aaef2f8dc7c2b53e2231fecfa204a3d02fd8014f8c2695c8739

124 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF file contains an embedded XFA form that triggers a known exploit for Adobe Reader (CVE-2010-0188). Static analysis revealed deobfuscated JavaScript, which is indicative of a downloader attempting to fetch and execute additional malicious content. The presence of embedded files and the exploit technique strongly suggest a malicious intent, likely 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 7

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 0x109C	85 bytes
`embedded_file_obj0042.bin` `dda0835df994b8be920f715db36452f6cee7bb42bbc9c897f878a7b298ba8e91`	pdf-embedded-file	PDF EmbeddedFile object 42 at offset 0x114E	1029 bytes
`embedded_file_obj0063.bin` `02c157ebdb1f7a0cad91585ab675512da3e20dc2f0a00e40a94968bb2422eca4`	pdf-embedded-file	PDF EmbeddedFile object 63 at offset 0x1367	8304 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`embedded_file_obj0044.bin` `3dd68f00f4fcb366a2a3a17c65cb2626eeddf5ea5713302d374310561d810169`	pdf-embedded-file	PDF EmbeddedFile object 44 at offset 0x2350	144 bytes
`embedded_file_obj0045.bin` `10c03f88a5f0a0833dc5b2c8ac295b3a3c6f65e23889eb8cc1dc6fe29bf7f275`	pdf-embedded-file	PDF EmbeddedFile object 45 at offset 0x23FD	77 bytes
`xfa_base26_stage_000.js` `d8d3ec5f47d325a68c42d6909eb045895d79b4aacc4c4f8180318a569d1f0119`	deobfuscated-js	XFA base-26 decoded JavaScript (decompressed) at offset 0x17B6	2146 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).
`deobfuscated.js` `3b3e0b25f36ceb2f4f717800b451e007f7ce5a76061e7819d49db74653f434d7`	deobfuscated-js	PDF JavaScript deobfuscation pass	20838 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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