PDF malware analysis — malicious · a9619c054ba3e1dd

MALICIOUS

PDF

1.4 KB

MD5: 92e738da78ce7920c2031b10c26d3a86 SHA-1: 3869cb92f7f9ab5adab5f5270919b04124f406df SHA-256: a9619c054ba3e1ddf9606af1b1db284bedbf55ce99fea2191dd4f9bb5ea21a01

200 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains a launch action and an embedded script payload, indicating malicious intent. The document body reveals a VBScript that constructs the URL "http://styggba.com/exe.exe" and saves it as "exe.exe", likely to download and execute a second-stage payload. The presence of ClamAV detection and a high risk score further support this assessment.

Heuristics 6

ClamAV: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTION

ClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
Launch action high PDF_LAUNCH

PDF contains a /Launch action with an unresolved or extension-less target — treat as potentially dangerous
Embedded script payload in PDF stream high PDF_EMBEDDED_SCRIPT_PAYLOAD

PDF stream bytes contain script execution markers such as ActiveXObject/CreateObject, WScript.Shell, PowerShell, or shell-exec primitives. This is stronger than ordinary PDF JavaScript because it indicates a staged external script payload hidden in stream bytes.
Visible LOLBin command execution instruction high SE_LOLBIN_RUN_COMMAND

Document contains instructions or visible command text involving Windows script/execution tools such as PowerShell, mshta, cmd, rundll32, or regsvr32
Suspicious extracted artifact medium 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://styggba.com/exe.exe

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_pdf_script_00000185.bin` `560f2f77048087c3e2e5b6bd012ebd79f31e653677169418bb5af27b86dbf02f`	pdf-embedded-script	PDF decompressed stream script payload at offset 0x185	1452 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 shell/COM execution token(s).

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