General
- Target kiriri_new.exe
- Size 85.7MB
- Sample260803-swf9tsbe35
- SHA256 292e5b0e7d1145a51652ba84547edee6227a9f4575923ae7c8a07b6087e02d6d
- MD5 70fc6080077ccc4aa3e43f76efa9f3fa
- SHA1 928f3d18ac929b460c523d8ddb4097b4a722df91
- SHA512 f4022b203c1e6c6c496929fc0a0f4b7dc276c1ea1f051c64ebdd9e804592aa1f5ff321c693b8cd815ae5be884cdd02557d7f87c7a68b67687d02ae9d4b271bc7
- SSDEEP 1572864:WrvUMOtPWouHKO+dy2J0f0/rBdsG7bpip0WWRiIhK4cNhZu665/Rcq:WTUXZuHI5BB7tE0Wko4cb83zcq
- TLSH T1AA18339978D5626FE60A4732E2D5D93D2B930A8D97AA80CC1E980D075BF30C9CD7DC36
- MD5 SHA1 SHA512 SSDEEP TLSH
Behavioral task
behavioral1
Sample
kiriri_new.exe
Resource
win10ltsc2021-20260513-en
Malware Config
Targets
-
- Target kiriri_new.exe
- Size 85.7MB
- SHA256 292e5b0e7d1145a51652ba84547edee6227a9f4575923ae7c8a07b6087e02d6d
- MD5 70fc6080077ccc4aa3e43f76efa9f3fa
- SHA1 928f3d18ac929b460c523d8ddb4097b4a722df91
- SHA512 f4022b203c1e6c6c496929fc0a0f4b7dc276c1ea1f051c64ebdd9e804592aa1f5ff321c693b8cd815ae5be884cdd02557d7f87c7a68b67687d02ae9d4b271bc7
- SSDEEP 1572864:WrvUMOtPWouHKO+dy2J0f0/rBdsG7bpip0WWRiIhK4cNhZu665/Rcq:WTUXZuHI5BB7tE0Wko4cb83zcq
- TLSH T1AA18339978D5626FE60A4732E2D5D93D2B930A8D97AA80CC1E980D075BF30C9CD7DC36
- MD5 SHA1 SHA512 SSDEEP TLSH
-
Enumerates VirtualBox DLL files
-
Enumerates VirtualBox registry keys
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Identifies VirtualBox via ACPI registry values (likely anti-VM)
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Looks for VirtualBox Guest Additions in registry
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Looks for VirtualBox drivers on disk
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Badlisted process makes network request
Network request originating from process or tool commonly abused by malware.
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Command and Scripting Interpreter: PowerShell
Run Powershell to get system information as a root user.
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Looks for VMWare Tools registry key
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Looks for VMWare drivers on disk
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Looks for VMWare services registry key.
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Creates a file in the Startup directory
A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.
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Executes dropped EXE
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Loads dropped DLL
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Adds Run key to start application
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Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Contacts third-party web service commonly abused for C2
Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.
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Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
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Maps connected drives based on registry
Disk information is often read in order to detect sandboxing environments.
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Discovers running processes
Running process information can be used to identify security tools or plan follow-on actions.
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Executes a VBScript file via the Windows Script Host.
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Suspicious use of NtSetInformationThreadHideFromDebugger
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
3PowerShell
1Visual Basic
1Windows Command Shell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Scheduled Task/Job
1Scheduled Task
1