General
- Target build.exe
- Size 85.6MB
- Sample260718-m5c1wahs4q
- SHA256 56ab05c3daa0d6b7b07aecd6070c9124be15827a59d7a92a0d9b0531ec238882
- MD5 48a17f87bc986145def111c08608f885
- SHA1 4ff6861fc0af83feb54b2518bfb3e7487cf48745
- SHA512 d13dbd4198531b73716729f4ba8abfc705d548d73b18ad7f460917bee74c5d44acc63cd5618079dec252e6d2f0f22bfcfb90f32e6fe5f251d0613bedd644b2ba
- SSDEEP 1572864:kvUMOtPWpXba7KZq+dy2J0f0/rBdsG7bpip0WW4iIsK4cNhZuj51j:KUXZGa7KYI5BB7tE0WzF4cb8jn
- TLSH T1E51833158412046FF78D5333E2D6C53B3BA7654E8B6AC0CD2AE48D075BAB1CACD79D22
- MD5 SHA1 SHA512 SSDEEP TLSH
Behavioral task
behavioral1
Sample
build.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
build.exe
Resource
win11ltsc2024-20260709-en
Malware Config
Targets
-
- Target build.exe
- Size 85.6MB
- SHA256 56ab05c3daa0d6b7b07aecd6070c9124be15827a59d7a92a0d9b0531ec238882
- MD5 48a17f87bc986145def111c08608f885
- SHA1 4ff6861fc0af83feb54b2518bfb3e7487cf48745
- SHA512 d13dbd4198531b73716729f4ba8abfc705d548d73b18ad7f460917bee74c5d44acc63cd5618079dec252e6d2f0f22bfcfb90f32e6fe5f251d0613bedd644b2ba
- SSDEEP 1572864:kvUMOtPWpXba7KZq+dy2J0f0/rBdsG7bpip0WW4iIsK4cNhZuj51j:KUXZGa7KYI5BB7tE0WzF4cb8jn
- TLSH T1E51833158412046FF78D5333E2D6C53B3BA7654E8B6AC0CD2AE48D075BAB1CACD79D22
- MD5 SHA1 SHA512 SSDEEP TLSH
Modifies WinLogon for persistence
Enumerates VirtualBox DLL files
Enumerates VirtualBox registry keys
Identifies VirtualBox via ACPI registry values (likely anti-VM)
Looks for VirtualBox Guest Additions in registry
Looks for VirtualBox drivers on disk
Modifies boot configuration data using bcdedit
Looks for VMWare Tools registry key
Looks for VMWare drivers on disk
Looks for VMWare services registry key.
Drops startup file
Executes dropped EXE
Impair Defenses: Safe Mode Boot
Loads dropped DLL
Adds Run key to start application
Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
Contacts third-party web service commonly abused for C2
Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.
Indicator Removal: Clear Persistence
Clear artifacts associated with previously established persistence like scheduletasks on a host.
Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
Maps connected drives based on registry
Disk information is often read in order to detect sandboxing environments.
Enumerates processes with tasklist
Executes a VBScript file via the Windows Script Host.
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
1Winlogon Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Defense Evasion
Impair Defenses
1Safe Mode Boot
1Indicator Removal
1Clear Persistence
1Modify Registry
2Virtualization/Sandbox Evasion
8