MALICIOUS
132
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 resource. The embedded VBA macros are present but appear to contain no executable statements, suggesting the exploit is directly leveraged by the OLE structure itself. The secondary embedded PDF also contains suspicious findings, indicating a multi-stage attack. The primary IOC is the URL used for the initial download.
Heuristics 5
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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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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/ibi/cmsh/CMSHCMSHCMSHCMSHCMSHCMSH%23%23%23%23%23%23%23%23%23%23%23%23%23%23%23%23%23%23CMSHCMSHCMSHCMSHCMSH.DOC
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/pdf/1.3/
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/xap/1.0/mm/
Extracted artifacts 7
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 |
font_00_sfnt_off0002837d.bin68d167e68895a344f3603a4efd0d8438eb8fdebe759cee48f2b4adf75c76c961 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x2837D | 12100 bytes |
font_01_sfnt_off0002a195.bin50551000b9f90b3f445ee94749557d9ddf96697a74984b3ccf3d2bae66910750 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x2A195 | 15820 bytes |
polyglot_child_pdf_off00000e00.pdf95c4320f5bc8edbdde3014163f1d077799414d5a7cf4fc63bde8f124228e1f2a |
polyglot-child-pdf | Secondary PDF body inside ole container at offset 0xE00 | 677888 bytes |
polyglot_child_pdf_off00006200.pdff48962fa4831487ec61b1562599b3b06a6f794dd3bdac6c1d6c0e144730f3141 |
polyglot-child-pdf | Secondary PDF body inside ole container at offset 0x6200 | 656384 bytes |
polyglot_child_pdf_off00016400.pdf79befabd3f0afb0f659fb05a11cfd7229cfef95e726d16dc8516f2d50b47ea7b |
polyglot-child-pdf | Secondary PDF body inside ole container at offset 0x16400 | 590336 bytes |
polyglot_child_pdf_off00026200.pdffb7b077f801dbccf57e410811a3cd7945683cea92839fa9bacb4d64b025ce076 |
polyglot-child-pdf | Secondary PDF body inside ole container at offset 0x26200 | 525312 bytes |
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