PDF malware analysis — malicious · 8f860f773cca0fdf

MALICIOUS

PDF

3.8 KB Authoring application: hXr (via va)

MD5: b0fbe406692543791418202069badb81 SHA-1: d87609608569971eadfed44aefc3c288b2af2ad6 SHA-256: 8f860f773cca0fdfc23ad13af5a12335b529c86a18c97c05eb2b55f2707f6638

98 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF document exploits CVE-2010-0188, a vulnerability in Adobe Reader related to LibTIFF XFA image processing. This exploit allows for arbitrary code execution when the document is opened. The presence of an embedded file and script payload further indicates malicious intent, likely to download and execute a second-stage payload.

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` `38ec090757256765bddd2a8ae7fded2a352db2a85566a110226619f68e109c20`	pdf-embedded-file	PDF EmbeddedFile object 41 at offset 0x53	9674 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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