MALICIOUS
140
Risk Score
Malware Insights
MITRE ATT&CK
T1204 Malicious Link
T1204.002 Malicious Link: Malicious File
T1059 Command and Scripting Interpreter
T1059.005 Command and Scripting Interpreter: Visual Basic
T1566 Phishing
T1566.001 Phishing: Spearphishing Attachment
The sample is an RTF document that exploits CVE-2017-11882, a known vulnerability in Microsoft Equation Editor. The presence of OLE object data and an \objupdate directive strongly suggests an attempt to trigger code execution. The document body contains a lure instructing the user to 'enable editing', a common tactic for macro-based malware.
Heuristics 4
-
CVE-2017-11882 — Equation Editor FONT record overflow critical CVE likely CVE_2017_11882Equation Editor MTEF contains an overlong FONT typeface field, the vulnerable copy primitive for CVE-2017-11882. This is stronger evidence than the Equation Editor CLSID alone because it identifies the malformed record that drives code execution in EQNEDT32.EXE.
-
\objupdate forces OLE activation high RTF_OBJUPDATERTF contains \objupdate — forces automatic OLE object instantiation when the document is opened, bypassing user interaction. Almost exclusively seen in Equation Editor exploit documents.
-
OLE object data medium RTF_OBJDATARTF contains 2 \objdata section(s) — embedded OLE objects
-
Macro/content-enable lure medium SE_ENABLE_LUREDocument instructs the user to enable macros or editing — a common technique used by malware droppers to bypass Office macro security settings
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
objdata_00_off0000177c.binb3743b423f80b68955f26a3117dcc91620b27452569c359ea2e09932db979f58 |
rtf-objdata-decoded | RTF \objdata at offset 0x177C | 4253 bytes |
Open this report in the interactive analyzer, or submit your own file for analysis.