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

Static analysis result for SHA-256 57301e8fe9f386d6…

MALICIOUS

Office (OLE) / .XLS

797.0 KB Created: 2021-05-19 13:26:23 Authoring application: Microsoft Excel
MD5: 5186a21d30bbf28909683c4767597481 SHA-1: fc9fced326d8db3c8171b8aebb52581a80b9e455 SHA-256: 57301e8fe9f386d64b44ddefe1c7124be0aba07cde84cba72d2c2aa9c1402b5d
290 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1059.003 Windows Command Shell T1204.002 Malicious File

The sample contains VBA macros, specifically a Workbook_Open auto-execution macro, which utilizes WScript.Shell and CreateObject to likely download and execute a second-stage payload. The presence of multiple suspicious URLs further supports this malicious intent. No document body text was available for analysis.

Heuristics 9

  • WScript.Shell usage critical OLE_VBA_WSCRIPT
    WScript.Shell usage
  • Reference to Windows Script Host high SC_STR_WSCRIPT
    Reference to Windows Script Host
  • Workbook_Open macro high OLE_VBA_WBOPEN
    Workbook_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • VBA p-code auto-exec with execution tokens high OLE_VBA_PCODE_AUTOEXEC_EXEC
    Compiled VBA/cache stream contains an auto-execution token together with shell/download/object-execution tokens. This catches p-code-only or source-extraction-failure macro documents where visible source is unavailable.
  • 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
  • Environ() call (env variable access) low OLE_VBA_ENVIRON
    Environ() call (env variable access)
  • 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 https://fuherpronn.org/u52Xze2Vn28f.php
    • https://mahinur.nucleustechbd.com/3IPk4Tm2As.php
    • https://armaenerji.com/UserFiles/site/enerji-kablolari/HES/tbqsCGNY.php
    • https://lojamusic.com.br/lojamusic.com.br/sitebuilder/IWu1s3chQoaXq.php
    • https://fuherpronn.org/u52Xze2Vn28f.php0
    • https://mahinur.nucleustechbd.com/3IPk4Tm2As.phpG
    • https://armaenerji.com/UserFiles/site/enerji-kablolari/HES/tbqsCGNY.phpG
    • https://specs2go.shawalzahid.com/wp-includes/sodium_compat/src/Core/Base64/gRC1QXli.phpNKx
    • https://gamberina
    • https://fotounirii.ro/wp-content/plugins/under-construction-page/themes/000webhost/EYZWDFGxTaDjbR.phpgdPDjl2gdPDjl2gdPDjl2gdPDjl2
    • https://abdul.yousufbaloch.com/C1q5m9Q5DWZJ24d.phpIA&VUz|
    • https://plascom.ind.br/_img/parceiros/Ii2g4c
    • https://lamiragereception.com.au/ABs8dJ2ZJ3jgv0n.php3*P=._v
    • https://gamberinigianluca.com/wp-content/themes/constructor/themes/black-urban/1FaXnq8F.php\(8hKbIV0;/
    • https://plascom.ind.br/_img/parceiros/Ii2g4cYzKfaMLz7.php;ZiuYs+b@OHXTu

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
c785d626ef05ebfdb3d4eda7e8b4ffc04777f81aadc39c372e7fd198a4368411		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 125023 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 2 shell/COM execution token(s). Carved macro source contains an auto-exec entry point and execution/download terms.

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