PDF malware analysis — malicious · 7b71f153fa92c1e6

MALICIOUS

PDF

9.6 KB

MD5: a3b8fb7e19e328c50d469111138a309c SHA-1: 2ccd4d6e0327ef4b5c20a001ed7f2b6e728f5191 SHA-256: 7b71f153fa92c1e61ba376e780441346c61b7f7cad2925771ede3e6adf3f08fd

88 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.001 PowerShell

The PDF file contains a critical heuristic match for CVE-2010-0188, an Adobe Reader LibTIFF XFA image exploit. The deobfuscated JavaScript indicates an attempt to exploit this vulnerability for code execution. While the scan was incomplete, the presence of the exploit and the embedded URL suggest a malicious intent to download and execute further stages.

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.
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
Scan did not complete info SCAN_INCOMPLETE

PDF JavaScript deobfuscation worker failed (worker exit 1); obfuscated JavaScript was not fully inspected.
PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED

The cross-check parser (pdfminer.six) failed on this file: PDF differential parser exited 1. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
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 0x109C	85 bytes
`embedded_file_obj0042.bin` `dda0835df994b8be920f715db36452f6cee7bb42bbc9c897f878a7b298ba8e91`	pdf-embedded-file	PDF EmbeddedFile object 42 at offset 0x114E	1029 bytes
`embedded_file_obj0063.bin` `31a62bbc397133b0855f66ae54affdc04553bc737200f889860549825933f7ea`	pdf-embedded-file	PDF EmbeddedFile object 63 at offset 0x1367	8290 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 0x2347	144 bytes
`embedded_file_obj0045.bin` `10c03f88a5f0a0833dc5b2c8ac295b3a3c6f65e23889eb8cc1dc6fe29bf7f275`	pdf-embedded-file	PDF EmbeddedFile object 45 at offset 0x23F4	77 bytes
`deobfuscated.js` `dba3c90c8bb252786fb5cd5700e10bbc4098e3bbf4d182396cdfe2c821c82e47`	deobfuscated-js	PDF JavaScript deobfuscation pass	14089 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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