Malicious Office (OLE) / .XLS — malware analysis report

Static analysis result for SHA-256 e7d0fe6a3b94ed81…

MALICIOUS

Office (OLE) / .XLS

452.0 KB Created: 2020-10-21 23:33:59
MD5: b9eb7a62024482d78f05f79dcaf3fb05 SHA-1: ef48459d409189ac9459f0b6653e8f46945ec250 SHA-256: e7d0fe6a3b94ed81dcd9ea98b7b88462df01b9a343f68aca9d71c7bab7d5607f
220 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious File T1105 Ingress Tool Transfer

The Workbook_Open macro fires upon opening the XLS file, triggering a PowerShell command. This command uses `Invoke-WebRequest` to download a file from http://weeshoppi.com/wp-includes/ID4/9632931.jpg to C:\Users\Public\Videos\yqpvndz.exe and then executes it. This indicates a downloader or droppper functionality.

Heuristics 7

  • Reference to PowerShell high SC_STR_POWERSHELL
    Reference to PowerShell
  • Workbook_Open macro high OLE_VBA_WBOPEN
    Workbook_Open macro
  • 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
  • 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 macros detected medium OLE_VBA_MACROS
    Document contains VBA macro code
  • 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://weeshoppi.com/wp-includes/ID4/9632931.jpg

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
c2ac10e495a5bf3e92199e700bf3ee08b1e1fed7f13440b8df05d61954687672
vba-macro oletools.olevba.extract_macros (decoded VBA source) 1776 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.