PDF malware analysis — malicious · 1d3fa8a5f124401e

MALICIOUS

PDF

10.6 KB

MD5: fce18f265b4b0bfbe4d528a69d048a61 SHA-1: 1d395703ed895aa966e79f611b8f7b1e67af8f56 SHA-256: 1d3fa8a5f124401e6cddc1ef694f4e6b147e688dd3f1839e5beb6e405020a11d

116 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: User Execution T1059.001 PowerShell

The PDF file contains a critical vulnerability (CVE-2010-0188) related to Adobe Reader's handling of XFA forms. A deobfuscated JavaScript file, 'xfa_base26_stage_000.js', was extracted, indicating the likely execution of a malicious script. This script is designed to download and execute a second-stage payload, leveraging the identified exploit.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

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 0xEB5	85 bytes
`embedded_file_obj0042.bin` `dda0835df994b8be920f715db36452f6cee7bb42bbc9c897f878a7b298ba8e91`	pdf-embedded-file	PDF EmbeddedFile object 42 at offset 0xF67	1029 bytes
`embedded_file_obj99999.bin` `2eefa7d1f15e894e5154f0637b411be266869de194186764cff7e6fc0b7bc4fc`	pdf-embedded-file	PDF EmbeddedFile object 99999 at offset 0x1183	24787 bytes
`embedded_file_obj0044.bin` `3dd68f00f4fcb366a2a3a17c65cb2626eeddf5ea5713302d374310561d810169`	pdf-embedded-file	PDF EmbeddedFile object 44 at offset 0x24E5	144 bytes
`embedded_file_obj0045.bin` `10c03f88a5f0a0833dc5b2c8ac295b3a3c6f65e23889eb8cc1dc6fe29bf7f275`	pdf-embedded-file	PDF EmbeddedFile object 45 at offset 0x2592	77 bytes
`xfa_base26_stage_000.js` `311344da522def0dd16a09d58f1214967a081045937ea63140901464e1bdabd5`	deobfuscated-js	XFA separator-stripped base-26 decoded JavaScript (decompressed, XML-entity decoded) at offset 0x136C	4280 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).

Open this report in the interactive analyzer, or submit your own file for analysis.