PDF malware analysis — malicious · 40d03e5abcc010d1

MALICIOUS

PDF

5.3 KB Created: 2002-02-02 59:55:01 Authoring application: e

MD5: 125fe32858ef81d5ffb4239ea131f075 SHA-1: a1a83b52f35f467a045de253350ee418651e62b5 SHA-256: 40d03e5abcc010d119b2ce537d5baca5156f6ffd8591980b20ac8d6dfbb3e17e

100 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious Link T1204.001 Malicious Link: Malicious Link T1059.001 Command and Scripting Interpreter: PowerShell T1059.003 Command and Scripting Interpreter: Windows Command Shell T1059.007 Command and Scripting Interpreter: JavaScript/TypeScript

The PDF file contains an embedded JavaScript payload that exploits CVE-2010-0188 in Adobe Reader. This exploit is designed to download and execute a second-stage payload. The presence of the XFA form and embedded file further supports the exploitation vector. The script itself was too large and complex to fully analyze statically, but its presence and the exploit indicate malicious intent.

Heuristics 6

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
PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED

The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_file_obj0029.bin` `93a44cad0c0ebaf1c1add2479f324d34c80e57534962d288ecbb47607aa118d2`	pdf-embedded-file	PDF EmbeddedFile object 29 at offset 0x333	184 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`stream_003_off0000042b.js` `4e4959d183878df3b0a995a91da4970a7498ed6c5800cd5e24b4d1e68fd825c8`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x42B	53022 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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