RTF malware analysis — malicious · 473ddb1b15b0544f

MALICIOUS

RTF

212.8 KB First seen: 2020-02-04

MD5: f52464abdc6552f646361cab0cfa6372 SHA-1: a739d30559d9a10484ae89e87acfdd7a66bf70ec SHA-256: 473ddb1b15b0544fcff3ffed70c7b5fa5bef9185bf950f2d4718fa0acbd409da

262 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution

The RTF file contains OLE object data and triggers heuristics related to CVE-2017-8570, indicating it exploits a vulnerability to drop a script. The embedded URL suggests a download location for a secondary payload. The document body's content is generic formatting information, providing no direct lure, so the rationale relies on the technical findings.

Heuristics 9

Composite Moniker — CVE-2017-8570 (drops SCT script) critical CVE related CVE_2017_8570

RTF \objdata decodes to OLE data containing the Composite Moniker — CVE-2017-8570 (drops SCT script) CLSID — the vulnerable control/moniker is embedded directly in the document's object stream, the delivery shape of this exploit. RTF objects auto-render when Word opens the file.
Composite Moniker in RTF OLE object high CVE related RTF_COMPOSITE_MONIKER_RELATED

RTF contains Composite Moniker CLSID in OLE object context, but no nearby scriptlet/SCT payload was confirmed. Treat as related moniker attack-surface evidence rather than proof of CVE-2017-8570 exploitation.
\objupdate forces OLE activation high RTF_OBJUPDATE

RTF contains \objupdate — forces automatic OLE object instantiation when the document is opened, bypassing user interaction. Almost exclusively seen in Equation Editor exploit documents.
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 3 \objdata section(s) — embedded OLE objects
Embedded OLE object medium RTF_OBJEMB

RTF contains \objemb — embedded OLE object
OlePres presentation stream in RTF OLE object medium RTF_OLEPRES_STREAM

RTF contains an embedded OLE object with an OlePres presentation stream. OlePres is an OLE presentation marker and is not enough on its own to identify CVE-2025-21298.
Macro/content-enable lure medium SE_ENABLE_LURE

Document instructs the user to enable macros or editing — a common technique used by malware droppers to bypass Office macro security settings
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://maitrezaouiat.ma/ariwa/ord.exe In RTF body

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`objdata_00_off00005408.bin`	rtf-objdata-decoded	RTF \objdata at offset 0x5408	3500 bytes
SHA-256: `d73fd3f805c9634cfdd219887caec8015f8537859e84ce21ee2ff94792e9ac74`
Detection ClamAV: No threats found Obfuscation or payload: likely Static shellcode analysis recovered command string(s): WScript.Sh"
`objdata_01_off00007065.bin`	rtf-objdata-decoded	RTF \objdata at offset 0x7065	12261 bytes
SHA-256: `c2e145786c38ff9a9613cb6195c0ab2d111b825bcc544af402b58d34f065621c`
`objdata_02_off0000d077.bin`	rtf-objdata-decoded	RTF \objdata at offset 0xD077	2632 bytes
SHA-256: `6972d59c6a5aab7b99a6123cb936d8ddf6848307d3b0f6170d1ab71302ed9f9f`

Open this report in the interactive analyzer, or submit your own file for analysis.