PDF malware analysis — malicious · 7f03d99317e6d99e

MALICIOUS

PDF

19.6 KB

MD5: 5f5992e51f6686681037699828b62a4d SHA-1: e3706d8b81699a2e49571245e7b8747e75bab550 SHA-256: 7f03d99317e6d99e1316167f0491914e9032b6ebce7e0adf0c8cc5f9e2e57d70

66 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains a risky executable script within an XFA form, a known vector for exploiting PDF vulnerabilities. This script is likely responsible for downloading and executing a second-stage payload, as indicated by the embedded file and the 'PDF_XFA_SCRIPT' heuristic. The embedded URL, while not directly malicious in reputation, is part of the XFA structure that facilitates script execution.

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.
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
AcroForm button with action trigger low PDF_ACROFORM_BUTTON

PDF contains a /Btn form field together with a SubmitForm/URI/Launch/JS trigger — this is the building block of fake 'Download' or 'Open' button overlays used in PDF phishing lures
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.
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.

URL http://www.xfa.org/schema/xfa-locale-set/2.1/

Extracted artifacts 6

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_file_obj0041.bin` `c06dcd026a7ea0536b63e07ce688691b585339a3ab7ff59065e546b56308c7bb`	pdf-embedded-file	PDF EmbeddedFile object 41 at offset 0x3ACD	85 bytes
`embedded_file_obj0042.bin` `b40a217a8d9b8d3671cc3874c550d30941b93ca6dde99995d43921dede579865`	pdf-embedded-file	PDF EmbeddedFile object 42 at offset 0x3B7F	1183 bytes
`embedded_file_obj0043.bin` `e037859805338b73614537e147b37ac07e204180258748d8044f19a26b1529e1`	pdf-embedded-file	PDF EmbeddedFile object 43 at offset 0x3DCF	1757 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).
`embedded_file_obj0044.bin` `3dd68f00f4fcb366a2a3a17c65cb2626eeddf5ea5713302d374310561d810169`	pdf-embedded-file	PDF EmbeddedFile object 44 at offset 0x41B8	144 bytes
`embedded_file_obj0045.bin` `10c03f88a5f0a0833dc5b2c8ac295b3a3c6f65e23889eb8cc1dc6fe29bf7f275`	pdf-embedded-file	PDF EmbeddedFile object 45 at offset 0x4264	77 bytes
`font_00_cff_off00004378.bin` `062eede2d0cc5d3972869dc7e2f2f9f01d1d1b3756b715c8252f06948ce99ae2`	pdf-font-stream	PDF embedded font (cff) at offset 0x4378	1192 bytes

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