PDF malware analysis — malicious · 9bb0288f7b98fac9

MALICIOUS

PDF

1.31 MB

MD5: acef0882fd337a90bca0f5c66cabe2ee SHA-1: 2a16e65b9cc5d13d8d1e33caa0edca972aa77ec4 SHA-256: 9bb0288f7b98fac909ed91ec24dad0d5a31e3eec93a1641849d9dab56c23aa59

200 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1559.001 Component Object Model Hijacking T1059.001 PowerShell

The sample is a PDF file that exploits CVE-2010-0188, a vulnerability in Adobe Reader related to XFA forms and TIFF images. Static analysis detected embedded files and a secondary embedded PDF with similar suspicious findings. ClamAV also identified it as Pdf.Exploit.Agent-20322. The attack pattern involves leveraging this exploit to deliver a malicious payload.

Heuristics 7

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.
ClamAV: Pdf.Exploit.Agent-20322 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-20322
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` `66f162353f7cbe3dbb75a7d64f0385f316a8dd59ad82ca8b9b3756026113fdd9`	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_off0014f28d.pdf` `bb83be3f6acb8da7a076f2551f372c0578a918208bdac6017ec87b6b40ee988c`	polyglot-child-pdf	Secondary PDF body inside pdf container at offset 0x14F28D	2767 bytes

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