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

Static analysis result for SHA-256 253905e30c81906c…

MALICIOUS

Office (OLE) / .XLS

162.0 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: bc051e0bf5568a99ddf48827bb5a993b SHA-1: 3a7b3f61c7fb125f7803ba408b04a423759b200e SHA-256: 253905e30c81906c9b22877c7a28770e548cd27c71fa014c382cd2f2f3421164
68 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution T1566.002 Phishing: Spearphishing Attachment T1059.005 Command and Scripting Interpreter: Visual Basic

The critical heuristic firing for CVE_2017_0199 indicates that this OLE file is designed to exploit a vulnerability to download a remote payload from the URL http://zeep.ly/uMYrl. Although the VBA project contains no executable statements, the presence of the CVE exploit and the embedded URL strongly suggest a malicious intent to download and execute a second-stage payload.

Heuristics 3

  • OLE2Link / URL Moniker → remote loader — CVE-2017-0199 critical CVE likely CVE_2017_0199
    Document contains an embedded OLE link object whose URL Moniker points to a remote URL. When the host file is opened, Office follows the link, downloads the URL, and processes the response based on its Content-Type (HTA -> mshta.exe, RTF → Word, etc.) — the documented CVE-2017-0199 primitive. The URL extension is not a reliable filter; servers can return different payloads to Office's user agent.
  • VBA project contains no executable statements low OLE_VBA_MACROS
    Document contains a VBA project, but extracted modules only contain attributes/options/comments and no executable statements.
  • 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://zeep.ly/uMYrl|���^N*���]���-��E�\c���u�V�#���~4�Ĉ�C�?}�����k���ZOv�������npXc9EXvmoJGBEP4GHrNbJfhFTpBotsFcqdlGLY200vP4Du4pmlcJjJ8i6IvIaJUB7AH4bROEzQvaaJELYG2tGhjGp3xOfyuJhZ013XOGjx27XBGx9NSiYvBgmJwdOr5aVQrFytjoGk2KhuZllJsSgySXmQm7Yc8dAPkDz8nZGIMUnPslPNCDoIBTJtE46Vapwb��

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
7f506327609c082af1cd37dde23bc2c71a000f7d1ef530b6abb66775040a7673		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 1206 bytes

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