PDF malware analysis — malicious · 2e5b06bcb609f4cc

MALICIOUS

PDF

24.1 KB

MD5: 4d6a3974fb0d39fe53a596090d9499ef SHA-1: 2868d526182588ccb2c10bdb870d16e7176caf9d SHA-256: 2e5b06bcb609f4ccfdcafa6107522d17314888c5173dc9ddc3dcfbc33bf49ca7

312 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious Link T1059.001 PowerShell

The PDF file contains embedded JavaScript and triggers a critical vulnerability (CVE-2010-0188) in Adobe Reader, indicating an exploit attempt. The embedded JavaScript is likely responsible for downloading and executing a second-stage payload, as suggested by the ClamAV detection of 'Win.Trojan.Agent-36103' on both the main file and an extracted artifact. The presence of XFA forms and various PDF filters further supports the exploit vector.

Heuristics 14

Adobe Reader LibTIFF XFA image exploit — CVE-2010-0188 critical CVE likely CVE_2010_0188

PDF contains XFA image data with an inline crafted TIFF payload and shellcode/delivery markers. This is the data-bound variant of the CVE-2010-0188 Adobe Reader LibTIFF/XFA exploit shape.
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.
ClamAV: Win.Trojan.Agent-36103 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Win.Trojan.Agent-36103
ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV

ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
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.
ASCIIHexDecode filter (with exploit indicators) medium PDF_FILTER_HEX

Hex-encoding filter present alongside exploit delivery indicators — often used to hide payload or shellcode bytes
JavaScript action low PDF_JAVASCRIPT

PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
Embedded JS stream low PDF_JS

PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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
ASCII85Decode filter (with exploit indicators) low PDF_FILTER_85

ASCII85 encoding filter present alongside exploit delivery indicators — uncommon outside of obfuscation
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
PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED

The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PSSyntaxError. 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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_file_obj0008.bin` `79b0f334ddd946a9b622a9c02aa90f17e6b5c04a46857663f44681718e76fd8d`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0x39B	13210 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`javascript_obj0012_000.js` `78af367b94c1fbc884572a85f9e28b3df7413cb8e4adf783519ae4588a1de39c`	pdf-javascript-stream	PDF /JS object 12 at offset 0x2C11	8387 bytes
Detection ClamAV: Win.Trojan.Agent-36103 Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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