PDF malware analysis — malicious · b196c5235e6d9703

MALICIOUS

PDF

3.3 KB

MD5: 4da539da4ab03a7af47570e6e5366d5b SHA-1: a50adb21dc3b3586a0fc91567642a7659e08e96b SHA-256: b196c5235e6d9703162741b4d7d9119ab8e68bf73b3ce1f6114579c3a0ddf0ae

142 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.001 PowerShell

The PDF file contains a critical heuristic indicating exploitation of CVE-2010-0188 via an XFA form. This exploit targets a vulnerability in Adobe Reader's handling of LibTIFF images within XFA content. The presence of embedded JavaScript with an eval() call further suggests the execution of malicious code. While the exact payload is not fully discernible from the provided data, the exploit's nature points towards an attempt to gain initial access and execute arbitrary code on the victim's system.

Heuristics 8

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.
eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution
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
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.

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_file_obj0001.bin` `f6dc01e7a352c109b0933f1e2e6006d05f8961f12b9f860ee49e6d9ca3ad09e9`	pdf-embedded-file	PDF EmbeddedFile object 1 at offset 0x52	13330 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`javascript_obj0007_000.js` `3b6ce2451c02beb6164ac8959b6c9d31514da75addb78fcdc0adc66147a5656b`	pdf-javascript-stream	PDF /JS object 7 at offset 0x8AA	109 bytes

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