PDF malware analysis — malicious · 309b03661145f5f6

MALICIOUS

PDF

3.3 KB Created: 2005-09-29 09:27:34 UTC Authoring application: Adobe PDF Library 8.0

MD5: 2cdcf92a991da6f5d6e3eb3c6924a396 SHA-1: de981d504a6227768b14ee017fbc00bfa529c487 SHA-256: 309b03661145f5f68b52f7cf3392ca35b10de324c682936e1cbab1151a9001fe

100 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious File T1204.002 Malicious File: User Execution: Malicious Attachment T1566 Phishing T1566.001 Phishing: Spearphishing Attachment T1190 Exploit Public-Facing Application

The sample is a PDF document that contains embedded JavaScript and exploits the CVE-2010-0188 vulnerability within Adobe Reader's XFA form processing. This exploit allows for the execution of arbitrary code, likely to download and run a secondary payload. The embedded file and JavaScript actions indicate a malicious intent 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 XFA image data with an inline crafted TIFF payload and shellcode/delivery markers. This is the data-bound variant of the CVE-2010-0188 Adobe Reader LibTIFF/XFA exploit shape.
JavaScript action low PDF_JAVASCRIPT

PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
Embedded JS stream low PDF_JS

PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_file_obj0004.bin` `ea6597a7bb461d04d606bfafff82686e6fd3cad4cec091e65c75429e20a8d323`	pdf-embedded-file	PDF EmbeddedFile object 4 at offset 0x1C6	35879 bytes

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