PDF malware analysis — malicious · 418e26b1ff6a2919

MALICIOUS

PDF

5.9 KB Created: 2013-04-29 11:13:02

MD5: 63700766252c6515da189e8c1d50ba67 SHA-1: f3f060a44be83c5970efc391b8c240e061c82702 SHA-256: 418e26b1ff6a291927ba8cc8316333b664f722bc54ae4521318e8614a2f0a271

218 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

The PDF file contains an embedded artifact and triggers critical heuristics for CVE-2010-0188, indicating it exploits a vulnerability in Adobe Reader. ClamAV also detected the file as Pdf.Exploit.CVE_2010_0188-10. The embedded file is likely the second-stage payload delivered by the exploit.

Heuristics 7

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.
ClamAV: Pdf.Exploit.CVE_2010_0188-10 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.CVE_2010_0188-10
ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV

ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
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_obj0006.bin` `8fc13c55f0e265cb74ac04403baa54c424954595a25f7eaa8d96bbf247d0ca77`	pdf-embedded-file	PDF EmbeddedFile object 6 at offset 0x431	78661 bytes
Detection ClamAV: Pdf.Exploit.CVE_2010_0188-10 Obfuscation or payload: likely Carved artifact contains 2 long base64-like blob(s).

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