PDF malware analysis — malicious · 3c271ce4f64936e7

MALICIOUS

PDF

6.1 KB Created: 2012-10-18 11:51:53 Authoring application: kkiiia=unescape(nehet.replace(/jjsjff/g, niittu.charAt(4

MD5: 8a43b0d6b6e671a0e1b97a3841daa7ba SHA-1: 9e87e84494945fd84500106cb725517a4165ec05 SHA-256: 3c271ce4f64936e706bf1851419503939ad8e88a5062dd2fa7ac65edad630914

140 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059 Command and Scripting Interpreter

The PDF file contains a critical vulnerability (CVE-2010-0188) targeting Adobe Reader's handling of XFA forms. This exploit allows for the execution of arbitrary code. The presence of embedded script payloads and embedded files further supports the malicious intent, likely to download and execute a second-stage payload.

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.
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits
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
PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED

The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. 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 6

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_file_obj0006.bin` `c09ae753ce4962d3d447f6ccdc05236eb9238277b66775a82f085f0fd265a84d`	pdf-embedded-file	PDF EmbeddedFile object 6 at offset 0x257	130 bytes
`embedded_file_obj0016.bin` `948abb97eac7d0ab74f49e779a84d51080a0bf4c37ac0a7c3456b438fefcc9d0`	pdf-embedded-file	PDF EmbeddedFile object 16 at offset 0x4E2	156 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`embedded_file_obj0001.bin` `e6c26a3478346d27e841ad49868ebf68bf4c6863b6750e8d60bda3c4c6f79876`	pdf-embedded-file	PDF EmbeddedFile object 1 at offset 0x5D4	77 bytes
`embedded_file_obj0018.bin` `92a3ce61d783e15932b5de127ce45a9b4c2f98f4da2453f65241573c1dda808a`	pdf-embedded-file	PDF EmbeddedFile object 18 at offset 0x67E	56 bytes
`embedded_file_obj0004.bin` `d4d42ce0e2becf87abd24a70143a95b67bb3633a77c6bfce0204f49023ee7cd4`	pdf-embedded-file	PDF EmbeddedFile object 4 at offset 0x785	201 bytes
`embedded_file_obj0015.bin` `fc83be7dfd5485f3f60dd3cc271cac1470ba4c6ad551a3c063a677bdf02fb43c`	pdf-embedded-file	PDF EmbeddedFile object 15 at offset 0xAE0	35143 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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