PDF malware analysis — malicious · 2efc14d36c00ee12

MALICIOUS

PDF

6.0 KB Created: 2012-06-22 15:04:16 Authoring application: klulue=slioka(irode.replace(/ndyyed21a/g, ooob.charAt(4

MD5: 67e3c33ae2de98ed47ef971b2345e945 SHA-1: c9bab981a2bf6622f211b975766089099a77922e SHA-256: 2efc14d36c00ee128f912f373dda65636c32cb3b53b2eed7e628f6cb612e0468

160 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File Execution: Malicious File T1059.001 Command and Scripting Interpreter: PowerShell T1566.001 Phishing: Spearphishing Attachment

This PDF file triggers the CVE-2010-0188 exploit, which is known to target Adobe Reader's handling of TIFF images within XFA forms. The critical heuristic firing confirms this exploit is present and likely decodes a payload. The presence of embedded files and a script payload marker further suggests this exploit is used as a dropper for additional malicious content. The file's metadata and ClamAV detection reinforce its malicious nature.

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: Pdf.Exploit.Gen-259 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Gen-259
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_obj0007.bin` `c09ae753ce4962d3d447f6ccdc05236eb9238277b66775a82f085f0fd265a84d`	pdf-embedded-file	PDF EmbeddedFile object 7 at offset 0x254	130 bytes
`embedded_file_obj0011.bin` `c838afb8bba31d18edb206979544329a0943b904d1003a36e8f7f2a341910865`	pdf-embedded-file	PDF EmbeddedFile object 11 at offset 0x4A2	113 bytes
`embedded_file_obj0005.bin` `e6c26a3478346d27e841ad49868ebf68bf4c6863b6750e8d60bda3c4c6f79876`	pdf-embedded-file	PDF EmbeddedFile object 5 at offset 0x574	77 bytes
`embedded_file_obj0009.bin` `92a3ce61d783e15932b5de127ce45a9b4c2f98f4da2453f65241573c1dda808a`	pdf-embedded-file	PDF EmbeddedFile object 9 at offset 0x61D	56 bytes
`embedded_file_obj0017.bin` `d4d42ce0e2becf87abd24a70143a95b67bb3633a77c6bfce0204f49023ee7cd4`	pdf-embedded-file	PDF EmbeddedFile object 17 at offset 0x726	201 bytes
`embedded_file_obj0018.bin` `d6368b310462379c1e33aa1923882b14782c6c34c75bcf92a73cff83a180d528`	pdf-embedded-file	PDF EmbeddedFile object 18 at offset 0xA2A	47718 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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