PDF malware analysis — malicious · e03cc8f4b15ce526

MALICIOUS

PDF

18.3 KB Created: 2010-08-12 11:28:08 Authoring application: mopyLuv wifeLuv

MD5: 36168bd769033cdc5468da98e2d3b803 SHA-1: dcb241ba2c777c98ee831fe61941316c9163919f SHA-256: e03cc8f4b15ce526079b112e40ac8dbd13f01cb4f25346620cce5e0d2715526f

168 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1059.001 PowerShell

The PDF sample contains critical XFA heap spray exploit code and embedded script payloads. The ML classifier strongly indicates maliciousness. The presence of an embedded file, specifically 'embedded_file_obj0010.bin', suggests it is likely a downloader or part of a multi-stage attack. The exact intent of the script is obscured, but the exploit code points to arbitrary code execution.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

Heuristics 6

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.
XFA JavaScript heap-spray exploit code critical PDF_XFA_HEAP_SPRAY

PDF contains XFA script content with heap-spray or shellcode-like JavaScript markers such as large encoded word sequences, util.pack, large arrays, or spray variable names. This is a weaponised Adobe Reader exploit pattern, not a normal interactive form.
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 7

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_file_obj0008.bin` `d81baa73e490e4cb879e13927cacd1dd1be37524a37eac51603e15117c578777`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0x111C	84 bytes
`embedded_file_obj0009.bin` `24c130f03a4cf51d470b536e94c1e58af67665739e200e0ce198ad41086243c0`	pdf-embedded-file	PDF EmbeddedFile object 9 at offset 0x11CD	228 bytes
`embedded_file_obj0010.bin` `3d6362b59d3e5618f44af21c9ad60004dfc863c25588cc52bb8a8845a44b8b3d`	pdf-embedded-file	PDF EmbeddedFile object 10 at offset 0x12C0	25528 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).
`embedded_file_obj0011.bin` `c97e0522381d6196cc0695f35f4d065f15c9c86a9601a7f776c6afd3f4c6b460`	pdf-embedded-file	PDF EmbeddedFile object 11 at offset 0x40FF	199 bytes
`embedded_file_obj0012.bin` `ec12d2406a4fce14067d4a8ea61206698b5491a524a7dcf5f9909037f172ba4f`	pdf-embedded-file	PDF EmbeddedFile object 12 at offset 0x41F1	131 bytes
`embedded_file_obj0013.bin` `e6c26a3478346d27e841ad49868ebf68bf4c6863b6750e8d60bda3c4c6f79876`	pdf-embedded-file	PDF EmbeddedFile object 13 at offset 0x42B0	77 bytes
`embedded_file_obj0014.bin` `92a3ce61d783e15932b5de127ce45a9b4c2f98f4da2453f65241573c1dda808a`	pdf-embedded-file	PDF EmbeddedFile object 14 at offset 0x4357	56 bytes

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