PDF malware analysis — malicious · 8bc525024408b0eb

MALICIOUS

PDF

5.2 KB Created: 2011-05-11 17:19:01 Authoring application: H13C

MD5: 014aace984975e1abe094961134cd0be SHA-1: 8e0596654ddc14c6abfffa6d2e2729eabb1aa106 SHA-256: 8bc525024408b0eb84ddc8b9bd78d998e1de839c068bdf5c7e37d514dd81ea22

140 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1059.001 PowerShell

The PDF file contains an embedded JavaScript payload that exploits CVE-2010-0188, a vulnerability in Adobe Reader's handling of LibTIFF images within XFA forms. The heuristic firings indicate that this exploit is designed to download and execute a second-stage payload. The extracted JavaScript, although potentially obfuscated, is the primary indicator of malicious activity.

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.
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
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 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_002_off00000315.js` `6de431e24f99d5664842eac42b4f1cfad135831f0001554b015b526f31737aee`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x315	61470 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).

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