Malicious Office (OOXML) / .XLSM — malware analysis report

Static analysis result for SHA-256 fd122bb7c77aa94b…

MALICIOUS

Office (OOXML) / .XLSM

9.4 KB
MD5: 7e27910f97733931fad7e00a2f17f96a SHA-1: 4f4f946bd6e27251100aaf5a1c77b08b8d2173bf SHA-256: fd122bb7c77aa94b6919cdf4da57d5c1056efc4fb03a645cff6daa32428c9e41
62 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1204.002 Malicious File

The file is an XLSM document containing VBA macros, which is a common delivery mechanism for malware. The heuristic firings indicate the presence of VBA macros with execution terms and an embedded URL. The embedded URL points to an executable file, suggesting the macro's purpose is to download and execute this payload.

Heuristics 3

  • 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.
  • VBA project inside OOXML medium OOXML_VBA
    Document contains vbaProject.bin — VBA macros present
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — context-specific rules above attribute URLs they actually evaluated; this rule lists URLs that were present in the bytes but were not otherwise tied to a specific finding.
    URL http://wibon.co.id/wp-content/themes/expeded.exe

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
32cdd51a436162a9909e90be8cb7f7e67fee8cc22c32276d2b2faf7d2ff12c2d
vba-macro oletools.olevba.extract_macros (decoded VBA source from OOXML) 3164 bytes
vbaProject_00.bin
2b28e011ee73998093fa1b32d7137f79fcc396f94b18296d998aff4f43dc7631
vba-project OOXML VBA project: xl\vbaProject.bin 11776 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.