PDF malware analysis — malicious · 7fd73e5bf4b9e5a5

MALICIOUS

PDF

119.2 KB

MD5: a52ca419c7ebc953d45021c01e02019a SHA-1: ce105b01bb6db61b15ceded18f9a3ae0b43d533d SHA-256: 7fd73e5bf4b9e5a59eddcef04ba59793c41f8144e239cf0ac9ca9dd281d584d2

140 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution

The PDF file contains a critical heuristic indicating exploitation of CVE-2010-0188, a known vulnerability in Adobe Reader related to LibTIFF XFA image handling. This suggests the document is designed to execute arbitrary code upon opening. An embedded secondary PDF was also found to contain similar suspicious findings, reinforcing the malicious intent.

Heuristics 6

Adobe Reader LibTIFF XFA image exploit — CVE-2010-0188 critical CVE likely CVE_2010_0188

PDF contains XFA image data with an inline crafted TIFF payload and shellcode/delivery markers. This is the data-bound variant of the CVE-2010-0188 Adobe Reader LibTIFF/XFA exploit shape.
Secondary embedded PDF body has suspicious static findings critical POLYGLOT_CHILD_PDF_STATIC_TRIAGE

A valid PDF body was found at a nonzero offset inside another container and its carved contents matched PDF exploit or lure heuristics. This catches polyglots where the top-level magic routes to ZIP/OLE while a PDF reader or downstream parser opens the hidden PDF payload.
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: PSSyntaxError. 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_obj0001.bin` `8f81646d4bdc9720c0723614c09ebaa8dea41b79d631c5dd5827cc814d6ee655`	pdf-embedded-file	PDF EmbeddedFile object 1 at offset 0x51	13430 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`polyglot_child_pdf_off0001d054.pdf` `c3f7a17325416dd147491cbe62640690af0319d60cc222d3c1cfdd4c19356fc2`	polyglot-child-pdf	Secondary PDF body inside pdf container at offset 0x1D054	3238 bytes

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