PDF malware analysis — malicious · 1a08f2c1c5945fd3

MALICIOUS

PDF

5.5 KB Created: sdtres

MD5: ac0213465e549e390b3a6682cdf6f271 SHA-1: 3c878cebd2a4b0b11f9c9907e4c1ffd165d3bf73 SHA-256: 1a08f2c1c5945fd3079f839fa4681b72d8e61584b20b072b856f02a136327ee5

268 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious Link T1059 Command and Scripting Interpreter

The PDF file contains embedded script content and is flagged by ClamAV for the CVE-2010-0188 exploit. The ML classifier also strongly indicates maliciousness. The embedded artifact, 'embedded_file_obj0011.bin', was also detected by ClamAV as 'Pdf.Exploit.CVE_2010_0188-10'. This suggests the document is designed to exploit this specific vulnerability to execute a malicious payload.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 8

XFA form contains risky executable script high CVE related PDF_XFA_SCRIPT

PDF embeds an XFA form whose script block contains exploit, submission/launch, or shell-execution primitives. Ordinary LiveCycle print/update scripts are left as generic XFA/JS signals unless stronger behavior is present.
ClamAV: Pdf.Exploit.CVE_2010_0188-10 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.CVE_2010_0188-10
ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV

ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
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
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_obj0011.bin` `65e0b333531782c2aff3abc3bb3df404c7ea3cd8e837ec01c69cc58074fde7a9`	pdf-embedded-file	PDF EmbeddedFile object 11 at offset 0x435	40380 bytes
Detection ClamAV: Pdf.Exploit.CVE_2010_0188-10 Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

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