Malicious Office (OOXML) — malware analysis report

Static analysis result for SHA-256 89cce9b90eeb1bff…

MALICIOUS

Office (OOXML)

181.2 KB Created: 2017-01-31 23:08:00 UTC Authoring application: Microsoft Office Word 15.0000 First seen: 2019-09-30
MD5: 465fd1b1fe089dea159183e04595b46d SHA-1: eb528c02797deb0ba5ab939654de3e86f746d8d4 SHA-256: 89cce9b90eeb1bff33d26ae726097f31a05819fc80c390b1a6b892cb95dd6a16
210 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The sample contains a critical DDEAUTO command that executes a PowerShell script. This script is designed to download a second-stage JavaScript payload from the URL 'https://u.lewd.se/EG0Hcr_documento.js' and then execute it. The document body attempts to lure the user into opening the file by claiming it requires an update, which is a common social engineering tactic for malicious documents.

Heuristics 6

  • ClamAV: Doc.Exploit.DDEautoexec-6346603-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Exploit.DDEautoexec-6346603-1
  • Malicious DDE command critical OOXML_DDE_MALICIOUS
    DDE field in word/document.xml launches a dangerous executable: \\System32\\cmd.exe
  • External relationship high OOXML_EXTERNAL_REL
    External target in word/_rels/settings.xml.rels: file:///C:\Users\SECGOBIERNO\Desktop\MEMBRETE ALCALDIA EL GUAMO 2016-2019.dotx
  • LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
    Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
  • External hyperlinks (2) low OOXML_EXTERNAL_HYPERLINKS
    Document contains 2 external hyperlinks — clickable URLs are stored as external relationships. First target: mailto:contactenos@elguamo-bolivar.gov.co
  • 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://u.lewd.se/EG0Hcr_documento.js Document hyperlink
    • http://www.elguamo-bolivar.gov.coDocument hyperlink
    • http://schemas.microsoft.com/office/word/2010/wordprocessingCanvasDocument hyperlink
    • http://schemas.openxmlformats.org/markup-compatibility/2006Document hyperlink
    • http://schemas.openxmlformats.org/officeDocument/2006/relationshipsDocument hyperlink
    • http://schemas.openxmlformats.org/officeDocument/2006/mathDocument hyperlink
    • http://schemas.microsoft.com/office/word/2010/wordprocessingDrawingDocument hyperlink
    • http://schemas.openxmlformats.org/drawingml/2006/wordprocessingDrawingDocument hyperlink
    • http://schemas.openxmlformats.org/wordprocessingml/2006/mainDocument hyperlink
    • http://schemas.microsoft.com/office/word/2010/wordmlDocument hyperlink
    • http://schemas.microsoft.com/office/word/2012/wordmlDocument hyperlink
    • http://schemas.microsoft.com/office/word/2010/wordprocessingGroupDocument hyperlink
    • http://schemas.microsoft.com/office/word/2010/wordprocessingInkDocument hyperlink
    • http://schemas.microsoft.com/office/word/2006/wordmlDocument hyperlink
    • http://schemas.microsoft.com/office/word/2010/wordprocessingShapeDocument hyperlink

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

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