Office (OLE) / .DOC malware analysis — malicious · 4a3b549ae1a0778b

MALICIOUS

Office (OLE) / .DOC

15.0 KB

MD5: f1de990b32738c5a64cf7bf7392069c1 SHA-1: c90a9bc89a3b470c479a089b5d7430b0f6eb81d5 SHA-256: 4a3b549ae1a0778bcd2798a95413a618f763fcc705a9862f0c10be8cc54ed835

222 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1105 Ingress Tool Transfer

The sample is a malicious DOC file containing VBA macros. The AutoOpen macro triggers the execution of VBA code that uses the URLDownloadToFile API to download a file from 'https://intern.teppich-traum.net/1/chinarik.exeMicrosoftSqlServerServerSmiEventStreamr'. This downloaded file is then likely executed, as indicated by the CreateProcess API reference. The presence of URLDownloadToFile and CreateProcess API calls within the VBA macros strongly suggests a downloader or droppper functionality.

Heuristics 7

Reference to URLDownloadToFile API critical SC_STR_URLDOWNLOAD

Reference to URLDownloadToFile API
URLDownloadToFile in VBA critical OLE_VBA_DOWNLOAD

URLDownloadToFile in VBA
Reference to CreateProcess API high SC_STR_CREATEPROCESS

Reference to CreateProcess API
AutoOpen macro high OLE_VBA_AUTOOPEN

AutoOpen macro
VBA macros detected medium OLE_VBA_MACROS

Document contains VBA macro code
Suspicious extracted artifact info 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.
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 https://intern.teppich-traum.net/1/chinarik.exeMicrosoftSqlServerServerSmiEventStreamr

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `13fda20539e13e4b6796ebac2417fa1ee51294008462e8a08fb83d66a9daadd6`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	3722 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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