PDF malware analysis — malicious · 2c13f4bd9d3a851e

MALICIOUS

PDF

3.8 KB Authoring application: hXr (via va)

MD5: 7621addf9208bd2224f9127c1e6c24d2 SHA-1: 527bcf30726e32e2ebd91bd7c31444bcc6da47ed SHA-256: 2c13f4bd9d3a851e6015acdfd76509320cdbc9af93cced73ecb3531d0fa35b9a

98 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: User Execution T1566.001 Phishing: Spearphishing Attachment

The PDF file contains an embedded script payload and triggers a critical heuristic for CVE-2010-0188, an Adobe Reader LibTIFF XFA image exploit. This indicates the document is designed to exploit this vulnerability upon opening. The embedded file 'embedded_file_obj0041.bin' is likely the second-stage payload. The exploit is the primary mechanism for initial code execution.

Heuristics 5

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 script payload in PDF stream medium 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.
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
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 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_file_obj0041.bin` `af9a64d373be8d2d4c6c242805ae4c4235c2298b97187aa53c530e266a693dcc`	pdf-embedded-file	PDF EmbeddedFile object 41 at offset 0x53	9942 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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