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

Static analysis result for SHA-256 5ee9ee847c500143…

MALICIOUS

Office (OLE) / .XLS

655.5 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: 4c2c83dbc73cbe42192f61e533369534 SHA-1: 276f226ae280241c6f416dfc48df6ca4b9df8309 SHA-256: 5ee9ee847c5001436fd5e7764adab57246c6e404ce8a0f0fb0d42496330ec013
62 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The sample exploits CVE-2017-0199, a known vulnerability for remote code execution. The embedded URL 'http://014013123707/wiwiwiwiwiiwiwiwiwi.php' is highly suspicious and likely serves as a loader for a secondary malicious payload. This indicates a typical phishing attachment delivery mechanism.

Heuristics 2

  • 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.
  • 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://014013123707/wiwiwiwiwiiwiwiwiwi.php
    • https://wwww.microsoft.com0
    • http://en.wikipedia.org/wiki/MIT_License
    • http://crl.microsoft.com/pki/crl/products/MicCodSigPCA_2010-07-06.crl0Z
    • http://www.microsoft.com/pki/certs/MicCodSigPCA_2010-07-06.crt0
    • http://crl.microsoft.com/pki/crl/products/MicRooCerAut_2010-06-23.crl0Z
    • http://www.microsoft.com/pki/certs/MicRooCerAut_2010-06-23.crt0��
    • http://www.microsoft.com/PKI/docs/CPS/default.htm0@
    • http://www.microsoft.com/pkiops/crl/Microsoft%20Time-Stamp%20PCA%202010(1).crl0l
    • http://www.microsoft.com/pkiops/certs/Microsoft%20Time-Stamp%20PCA%202010(1).crt0
    • http://www.microsoft.com/pkiops/Docs/Repository.htm0
    • http://www.microsoft.com/pki/certs/MicRooCerAut_2010-06-23.crt0

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_001_off00016841.bin
f48ea04ac88d94e996724b0312c89f652abb5998d218f16ccdd544cbb7a84532		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x16841 400552 bytes

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