PDF malware analysis — malicious · 6ccc8878cc5c886b

MALICIOUS

PDF

7.7 KB Created: 2011-01-23 14:57:47 Authoring application: den kas

MD5: 00b6798467ded85d0e0ae070d360885d SHA-1: d122111214708a8955188c584854171a65778dc9 SHA-256: 6ccc8878cc5c886b997be17363a98d1f3f1eb03125a7de1d826d9d7b7398a699

198 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.007 JavaScript

The PDF file contains a critical vulnerability exploit for CVE-2010-0188, targeting Adobe Reader's handling of XFA forms and embedded TIFF images. The exploit is triggered by a decoded XFA payload within a decompressed stream. This indicates the file is designed to achieve code execution on the victim's machine, likely to download and execute a further stage. No specific family could be identified.

Machine Learning

Nyx PDF Classifier malicious score 0.9999

Heuristics 8

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.
XFA form contains risky executable script high CVE related PDF_XFA_SCRIPT

PDF embeds an XFA form whose script block contains exploit, submission/launch, or shell-execution primitives. Ordinary LiveCycle print/update scripts are left as generic XFA/JS signals unless stronger behavior is present.
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits (matched inside decoded stream)
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
Embedded script payload in PDF stream low PDF_EMBEDDED_SCRIPT_PAYLOAD

PDF stream bytes contain an HTML/XFA <script> tag without accompanying Windows shell-execution primitives — common in accessible XFA forms but worth surfacing for analyst review.
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/xci/1.0/
- http://ns.adobe.com/xtd/
- http://www.xfa.org/schema/xfa-data/1.0/
- http://ns.adobe.com/xfdf/
- http://www.xfa.org/schema/xfa-form/2.8/
- http://www.xfa.org/schema/xfa-template/2.5/

Extracted artifacts 6

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_file_obj0007.bin` `24c130f03a4cf51d470b536e94c1e58af67665739e200e0ce198ad41086243c0`	pdf-embedded-file	PDF EmbeddedFile object 7 at offset 0xADD	228 bytes
`embedded_file_obj0019.bin` `c97e0522381d6196cc0695f35f4d065f15c9c86a9601a7f776c6afd3f4c6b460`	pdf-embedded-file	PDF EmbeddedFile object 19 at offset 0xBCE	199 bytes
`embedded_file_obj0008.bin` `e289fce3af5b0199b4acb1179e5e55d4598517cdeeb393131c99cfe43082a455`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xCBE	119 bytes
`embedded_file_obj0011.bin` `e6c26a3478346d27e841ad49868ebf68bf4c6863b6750e8d60bda3c4c6f79876`	pdf-embedded-file	PDF EmbeddedFile object 11 at offset 0xD76	77 bytes
`embedded_file_obj0010.bin` `92a3ce61d783e15932b5de127ce45a9b4c2f98f4da2453f65241573c1dda808a`	pdf-embedded-file	PDF EmbeddedFile object 10 at offset 0xE1D	56 bytes
`embedded_file_obj0015.bin` `7fb1575b3a428e5ef714911e81b5233f57e293c31954815b4199573430d999e8`	pdf-embedded-file	PDF EmbeddedFile object 15 at offset 0x1158	8711 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).

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