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

Static analysis result for SHA-256 e12fd502bdbb3854…

MALICIOUS

Office (OOXML) / .XLSM

136.7 KB
MD5: 64249e64876b66d6ded7fd515c1ba967 SHA-1: 44a54e135e34183890cad68f509525dafe2c1396 SHA-256: e12fd502bdbb38545289d289a517d68541e267a3d284e7bc1b194e337873a3ad
220 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious File

The sample is an XLSM file containing VBA macros. The document body explicitly shows a PowerShell command designed to download an executable from 'sparepartiran.com' and then execute it. This PowerShell command is a clear indicator of a downloader attack pattern. The ClamAV detection further confirms the malicious nature of the file.

Heuristics 6

  • ClamAV: Xls.Malware.Sagent-10035294-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Xls.Malware.Sagent-10035294-0
  • 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.
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • 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
  • 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 — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://sparepartiran.com/js/2Q/Hydgtp4.exe

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
1d4803b0b73a1f7e061a6599503df6953b5e3f53d843a208b319db274249089f		 vba-macro oletools.olevba.extract_macros (decoded VBA source from OOXML) 1700 bytes
vbaProject_00.bin
c604369c870fae27c922e9dbed234b4d7ff7d38a82cfe3eb98bc5fd598c11721		 vba-project OOXML VBA project: xl/vbaProject.bin 5120 bytes
Detection
ClamAV: Xls.Malware.Sagent-10035294-0
Obfuscation or payload: unlikely

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