MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1204.002 Malicious File
T1059.005 Visual Basic
The sample is an OLE file that exploits CVE-2017-0199 via a URL moniker to download a remote payload. The embedded URL points to a suspicious DOC file, indicating a likely initial access vector for further infection. The presence of multiple embedded PDF objects with suspicious static findings suggests a complex, multi-stage attack.
Heuristics 6
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OLE2Link / URL Moniker → remote loader — CVE-2017-0199 critical CVE likely CVE_2017_0199Document 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.
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Secondary embedded PDF body has suspicious static findings critical POLYGLOT_CHILD_PDF_STATIC_TRIAGEA valid PDF body was found at a nonzero offset inside another container and its carved contents matched PDF exploit or lure heuristics. This catches polyglots where the top-level magic routes to ZIP/OLE while a PDF reader or downstream parser opens the hidden PDF payload.
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VBA project contains no executable statements low OLE_VBA_MACROSDocument contains a VBA project, but extracted modules only contain attributes/options/comments and no executable statements.
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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PDF paints image(s) but contains no text operators info PDF_IMAGE_ONLY_LUREPDF has 1 image XObject(s) and the content stream contains no text-emitting operators (BT/ET, Tj, TJ, ', ") in either raw bytes or decompressed streams — this is the screenshot-as-PDF pattern used to bypass text-based scanners and to deliver instructions purely through rendered pixels. It is informational unless paired with invisible links or risky URI context.
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Embedded URL info EMBEDDED_URLOne 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://192.3.243.146/34/cmshcmchsmchsmcshcmcshmcshcmschmcsh%23%23%23%23%23%23%23%23%23%23%23%23%23%23cmschsmcshcmschsmcshcms.DOC
Extracted artifacts 6
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
macros.bas7f506327609c082af1cd37dde23bc2c71a000f7d1ef530b6abb66775040a7673 |
vba-macro | oletools.olevba.extract_macros (decoded VBA source) | 1206 bytes |
stream_003_off00005f60.bin2998a126f4fa11ceb265371a5f7968ec18bc4692a32631a544232dc74040021f |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x5F60 | 252488 bytes |
polyglot_child_pdf_off00000e00.pdf47b43366e194f7a829809549cf3e9b8ee932c1481e4b18337d72bfac99f6a3e7 |
polyglot-child-pdf | Secondary PDF body inside ole container at offset 0xE00 | 520192 bytes |
polyglot_child_pdf_off00006400.pdf95d8d7e9bc5135f895efbfc4b4967ba3f6bf47c1e2bf056e64c897eb2f5345bd |
polyglot-child-pdf | Secondary PDF body inside ole container at offset 0x6400 | 498176 bytes |
polyglot_child_pdf_off00029400.pdf956235fff8bd20654c69f461f6471b859ebb1de0b43c6bf1552c3673e6444323 |
polyglot-child-pdf | Secondary PDF body inside ole container at offset 0x29400 | 354816 bytes |
polyglot_child_pdf_off0004bc00.pdf4779533888254b00498be08ac11a29ceb721fb35c7bcd4f8efbc5e63c608333b |
polyglot-child-pdf | Secondary PDF body inside ole container at offset 0x4BC00 | 213504 bytes |
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