PDF malware analysis — malicious · c6c7690358a7d852

MALICIOUS

PDF

10.9 KB

MD5: 4d1ed8e7d715f13873d18581440a2813 SHA-1: 4a845019611f43333be68049a1d30f11737ad925 SHA-256: c6c7690358a7d852dcdbf525c857d1100d5bcdc769b3aae2819e675e1717a243

124 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1059.001 PowerShell

The PDF file contains embedded JavaScript that exploits CVE-2010-0188, a known vulnerability in Adobe Reader related to LibTIFF processing. The heuristic 'EXTRACTED_FILE_STATIC_TRIAGE' indicates a suspicious extracted artifact named 'base26_stage_000.js', which is likely the deobfuscated JavaScript payload. This script is designed to download and execute a second-stage payload, as suggested by the exploit and the nature of embedded scripts in such documents. The embedded URL is likely related to the XFA form structure rather than a direct malicious link.

Heuristics 6

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.
Suspicious extracted artifact high 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 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
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 0xEE4	85 bytes
`embedded_file_obj0042.bin` `dda0835df994b8be920f715db36452f6cee7bb42bbc9c897f878a7b298ba8e91`	pdf-embedded-file	PDF EmbeddedFile object 42 at offset 0xF96	1029 bytes
`embedded_file_obj0095.bin` `021a0da0f6258d4ff9ee35d1b398e0abae3e9ca43bf6b6715b2576c8ba242aea`	pdf-embedded-file	PDF EmbeddedFile object 95 at offset 0x11AF	12574 bytes
`embedded_file_obj0044.bin` `3dd68f00f4fcb366a2a3a17c65cb2626eeddf5ea5713302d374310561d810169`	pdf-embedded-file	PDF EmbeddedFile object 44 at offset 0x2653	144 bytes
`embedded_file_obj0045.bin` `10c03f88a5f0a0833dc5b2c8ac295b3a3c6f65e23889eb8cc1dc6fe29bf7f275`	pdf-embedded-file	PDF EmbeddedFile object 45 at offset 0x2700	77 bytes
`base26_stage_000.js` `2edfdd8e695df72bc375136abe0091b9fc9f2cd55d940c3c0c7f5ab65e3bdc09`	deobfuscated-js	base26-decoded JavaScript (decompressed) at offset 0x13A5	4316 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s). Carved artifact contains 5 long base64-like blob(s).

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