PDF malware analysis — malicious · c89557fa8b7f4002

MALICIOUS

PDF

6.1 KB Created: 2012-09-25 14:23:09

MD5: b9b36dd7e29c9619643256d9489b44e2 SHA-1: 2405112bbde4189eec3f24fbf7b03874b63d1282 SHA-256: c89557fa8b7f400252aff8161475d05b19efffadff9221a53468201acf5b90e9

218 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: User Execution: Malicious File T1059.001 Command and Scripting Interpreter: PowerShell

The PDF file exploits CVE-2010-0188, a known vulnerability in Adobe Reader related to LibTIFF XFA image handling. This exploit is designed to download and execute a second-stage payload, as indicated by the ClamAV detection of 'Js.Exploit.Pdfka-2' and the presence of an embedded script payload. The embedded artifact 'embedded_file_obj0009.bin' likely contains the malicious script.

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.
ClamAV: Js.Exploit.Pdfka-2 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Js.Exploit.Pdfka-2
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.
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 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_file_obj0015.bin` `c09ae753ce4962d3d447f6ccdc05236eb9238277b66775a82f085f0fd265a84d`	pdf-embedded-file	PDF EmbeddedFile object 15 at offset 0x201	130 bytes
`embedded_file_obj0003.bin` `8a44a8485c6ba0bf8bb8dc812f197cceb33e3cb0e9bf4056c7a703b8d3e5ae70`	pdf-embedded-file	PDF EmbeddedFile object 3 at offset 0x2D5	127 bytes
`embedded_file_obj0019.bin` `d4d42ce0e2becf87abd24a70143a95b67bb3633a77c6bfce0204f49023ee7cd4`	pdf-embedded-file	PDF EmbeddedFile object 19 at offset 0x5BD	201 bytes
`embedded_file_obj0009.bin` `da859d269f9e7567ea146110c5cc506d2133270d4da267d776af3d66607535c5`	pdf-embedded-file	PDF EmbeddedFile object 9 at offset 0x8AE	38634 bytes
Detection ClamAV: Js.Exploit.Pdfka-2 Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

Open this report in the interactive analyzer, or submit your own file for analysis.