PDF malware analysis — malicious · 1d5320015846c010

MALICIOUS

PDF

90.0 KB

MD5: 7558f481ddcd3543548fa9639afd85d6 SHA-1: 74e040d3a559b84dd4211199f9c1f32b3412a156 SHA-256: 1d5320015846c01007ee376b1fac71995087543025b503ccfc47c24af3d68e98

268 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: User Execution

The PDF file contains XFA (XML Forms Architecture) which is known to be a vector for exploits. Specifically, the 'PDF_XFA_HEAP_SPRAY' and 'CVE_2010_0188' heuristics indicate the presence of exploit code targeting a vulnerability in Adobe Reader's handling of XFA forms. The embedded script payload, identified by 'PDF_EMBEDDED_SCRIPT_PAYLOAD' and 'PDF_XFA_SCRIPT', likely facilitates the execution of this exploit. The exploit aims to download and execute a second-stage payload, as suggested by the ClamAV detection 'Pdf.Exploit.Agent-6136306-0'.

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.
XFA form contains executable script high CVE related PDF_XFA_SCRIPT

PDF embeds an XFA form whose dataset contains a <script> or <xfa:script> block — XFA scripting has been the exploit primitive for several Adobe Reader RCEs (CVE-2010-0188 family, CVE-2018-4901, and others). Plain XFA without scripts is far less risky.
XFA JavaScript heap-spray exploit code critical PDF_XFA_HEAP_SPRAY

PDF contains XFA script content with heap-spray or shellcode-like JavaScript markers such as large encoded word sequences, util.pack, large arrays, or spray variable names. This is a weaponised Adobe Reader exploit pattern, not a normal interactive form.
ClamAV: Pdf.Exploit.Agent-6136306-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-6136306-0
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.
Suspicious extracted artifact medium 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.
XFA form low PDF_XFA

PDF uses XML Forms Architecture — can contain script logic
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
URL http://ns.adobe.com/xdp/
- http://www.xfa.org/schema/xfa-template/2.5/
- http://www.xfa.org/schema/xfa-data/1.0/

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_pdf_script_0000023c.bin` `243913ad37774da711ebbbdd8ff59d0e0eb2972710e62b90e1944c26f07d696b`	pdf-embedded-script	PDF raw stream script payload at offset 0x23C	91488 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

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