PDF malware analysis — malicious · e7b260e086951163

MALICIOUS

PDF

5.5 KB Created: sdtres

MD5: fb905bac2d66be605300eead4e9e1ba0 SHA-1: 3796fb8ac7a07218a720b313025b431c58ce7712 SHA-256: e7b260e08695116374ebc881e535040071b28d96f3ea8b3c07f496acbbb2aada

258 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.001 PowerShell

The PDF file contains an embedded XFA form that triggers the CVE-2010-0188 vulnerability in Adobe Reader. This exploit is designed to download and execute a second-stage payload, as indicated by the 'PDF_EMBEDDED_SCRIPT_PAYLOAD' heuristic and the presence of an extracted artifact named 'embedded_file_obj0011.bin'. The ClamAV detection further confirms the malicious nature of the file.

Heuristics 8

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.
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits (matched inside decoded stream)
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_obj0011.bin` `af805ba92a02261ac101b59336b246a9f6d26ed09a69424d748fc1a31c7d17db`	pdf-embedded-file	PDF EmbeddedFile object 11 at offset 0x45C	33084 bytes
Detection ClamAV: Pdf.Exploit.CVE_2010_0188-10 Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

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