PDF malware analysis — malicious · be3f2b6b4b532446

MALICIOUS

PDF

3.8 KB Authoring application: hXr (via va)

MD5: 34dda8ba90a50184d188a5c1b6bbd550 SHA-1: d705a29426dfbb73748262ed501a9179f3e8cbf5 SHA-256: be3f2b6b4b532446663f97d00f4418d18610c8b71c5042225bfb15fe5bb75624

98 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1566.002 Spearphishing Attachment

The PDF file contains an embedded object and triggers a critical heuristic for CVE-2010-0188, indicating an exploit for Adobe Reader's LibTIFF XFA image handling. This suggests the document is designed to execute arbitrary code upon opening in a vulnerable reader. No scripts were extracted, but the embedded file and exploit are sufficient indicators of malicious intent.

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` `0f8ee25b627bdfc1fb7ec609e69711339d4877f5126c13c409d6adcb922f1f15`	pdf-embedded-file	PDF EmbeddedFile object 41 at offset 0x53	9903 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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