PDF malware analysis — malicious · cb93ac19b7bb6b21

MALICIOUS

PDF

75.9 KB

MD5: 273e54615b620b76676bbf14509db4f8 SHA-1: 75add2cab59589945b5a91aab065a6da016d2291 SHA-256: cb93ac19b7bb6b2121f9accf29868dcd9ee71050c27b25695ab423d7556350e6

80 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.001 PowerShell

The sample is a PDF document that contains an embedded file and triggers the CVE-2010-0188 exploit. This exploit targets a vulnerability in Adobe Reader related to XFA forms and TIFF image parsing. The embedded file, named 'embedded_file_obj0001.bin', is likely the secondary payload. The exploit's primary function is to achieve arbitrary code execution, enabling the download and execution of further malicious content.

Heuristics 5

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.
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 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_file_obj0001.bin` `57f5db7740f9d47b130c6428b0a68cea4d75d8fad0321c78c8882e3298fa8af7`	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).

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