PDF malware analysis — malicious · c97cc2059cf3f72d

MALICIOUS

PDF

23.8 KB

MD5: 31ac5311a57a85c48345a2ba0a75f476 SHA-1: b9bed0c999536174b2026cf0dfb85448e548d459 SHA-256: c97cc2059cf3f72dee4eff36d0c210a612298f3eabbc37e54b4192e5eec3787b

192 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File T1566.001 Spearphishing Attachment

The PDF file contains embedded JavaScript, indicated by multiple PDF_JAVASCRIPT and PDF_JS heuristics. The ClamAV detection of 'Win.Trojan.Agent-36103' on both the main file and an extracted artifact suggests a malicious payload. The embedded JavaScript is likely responsible for downloading and executing this payload, which is a common technique for delivering malware.

Heuristics 11

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.
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` `6fbbbb6601eaabd89cc57226ba8fb1b87b6e23ee091addc705d080403935d745`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0x3CB	27488 bytes
`javascript_obj0012_000.js` `78af367b94c1fbc884572a85f9e28b3df7413cb8e4adf783519ae4588a1de39c`	pdf-javascript-stream	PDF /JS object 12 at offset 0x2ACE	8387 bytes
Detection ClamAV: Win.Trojan.Agent-36103 Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

Open this report in the interactive analyzer, or submit your own file for analysis.