Analysis
- max time kernel
147s - max time network
143s - platform
windows10-2004_x64 - resource
win10v2004-20240709-en - resource tags
- submitted
22/07/2024, 04:02
General
- Target MalwareBazaar.exe
- Size 1.1MB
- Sample240722-els9rayeqp
- SHA256 1ae0070dfb1bf56bba7a857cc5818b686ebba0f14501800495b7ef31506648c9
Malware Config
Extracted
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remcos
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RemoteHost
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103.186.116.90:67
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audio_folder
MicRecords
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audio_record_time
5
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connect_delay
0
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connect_interval
1
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copy_file
remcos.exe
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copy_folder
Remcos
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delete_file
false
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hide_file
false
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hide_keylog_file
false
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install_flag
false
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keylog_crypt
false
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keylog_file
logs.dat
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keylog_flag
false
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keylog_folder
remcos
-
mouse_option
false
-
mutex
Rmc-U29DLE
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screenshot_crypt
false
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screenshot_flag
false
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screenshot_folder
Screenshots
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screenshot_path
%AppData%
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screenshot_time
10
-
take_screenshot_option
false
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take_screenshot_time
5
Signatures
- Remcos
Remcos is a closed-source remote control and surveillance software.
- Detected Nirsoft tools 3 IoCs
Free utilities often used by attackers which can steal passwords, product keys, etc.
- NirSoft MailPassView 1 IoCs
Password recovery tool for various email clients
- NirSoft WebBrowserPassView 1 IoCs
Password recovery tool for various web browsers
- Command and Scripting Interpreter: PowerShell 1 TTPs 1 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.
- Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
- Suspicious use of SetThreadContext 4 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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 10 IoCs
- Suspicious behavior: MapViewOfSection 6 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 39 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe"C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- 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\Roaming\cwDvcsaWJhncG.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\cwDvcsaWJhncG" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAC5D.tmp"2⤵
- Scheduled Task/Job: Scheduled Task
-
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe /stext "C:\Users\Admin\AppData\Local\Temp\vcvberpvwadnaqicouorqgugyxuidmoor"3⤵
- Suspicious behavior: EnumeratesProcesses
-
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe /stext "C:\Users\Admin\AppData\Local\Temp\gfaue"3⤵
- Accesses Microsoft Outlook accounts
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe /stext "C:\Users\Admin\AppData\Local\Temp\qzgmfukq"3⤵
-
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe /stext "C:\Users\Admin\AppData\Local\Temp\qzgmfukq"3⤵
-
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe /stext "C:\Users\Admin\AppData\Local\Temp\qzgmfukq"3⤵
-
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe /stext "C:\Users\Admin\AppData\Local\Temp\qzgmfukq"3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
__PSScriptPolicyTest_gs0neqh3.afg.ps1
tmpAC5D.tmp
vcvberpvwadnaqicouorqgugyxuidmoor
memory/1220-75-0x0000000000400000-0x0000000000462000-memory.dmp
memory/1220-76-0x0000000000400000-0x0000000000462000-memory.dmp
memory/1220-73-0x0000000000400000-0x0000000000462000-memory.dmp
memory/1504-68-0x0000000007B50000-0x0000000007B64000-memory.dmp
memory/1504-45-0x00000000065E0000-0x00000000065FE000-memory.dmp
memory/1504-65-0x0000000007B90000-0x0000000007C26000-memory.dmp
memory/1504-64-0x0000000007980000-0x000000000798A000-memory.dmp
memory/1504-14-0x0000000002CD0000-0x0000000002D06000-memory.dmp
memory/1504-15-0x0000000074BE0000-0x0000000075390000-memory.dmp
memory/1504-17-0x0000000005960000-0x0000000005F88000-memory.dmp
memory/1504-18-0x0000000074BE0000-0x0000000075390000-memory.dmp
memory/1504-63-0x0000000007910000-0x000000000792A000-memory.dmp
memory/1504-62-0x0000000007F50000-0x00000000085CA000-memory.dmp
memory/1504-19-0x0000000074BE0000-0x0000000075390000-memory.dmp
memory/1504-61-0x0000000007810000-0x00000000078B3000-memory.dmp
memory/1504-85-0x0000000074BE0000-0x0000000075390000-memory.dmp
memory/1504-60-0x0000000006B70000-0x0000000006B8E000-memory.dmp
memory/1504-50-0x00000000713D0000-0x000000007141C000-memory.dmp
memory/1504-49-0x0000000006BB0000-0x0000000006BE2000-memory.dmp
memory/1504-67-0x0000000007B40000-0x0000000007B4E000-memory.dmp
memory/1504-35-0x0000000006000000-0x0000000006066000-memory.dmp
memory/1504-34-0x00000000058D0000-0x0000000005936000-memory.dmp
memory/1504-28-0x0000000005830000-0x0000000005852000-memory.dmp
memory/1504-46-0x0000000006630000-0x000000000667C000-memory.dmp
memory/1504-70-0x0000000007C30000-0x0000000007C38000-memory.dmp
memory/1504-42-0x0000000006170000-0x00000000064C4000-memory.dmp
memory/1504-69-0x0000000007C50000-0x0000000007C6A000-memory.dmp
memory/1504-66-0x0000000007B10000-0x0000000007B21000-memory.dmp
memory/2784-7-0x0000000005650000-0x000000000565E000-memory.dmp
memory/2784-1-0x0000000000940000-0x0000000000A54000-memory.dmp
memory/2784-2-0x0000000005AF0000-0x0000000006094000-memory.dmp
memory/2784-3-0x0000000005420000-0x00000000054B2000-memory.dmp
memory/2784-27-0x0000000074BE0000-0x0000000075390000-memory.dmp
memory/2784-4-0x00000000054F0000-0x00000000054FA000-memory.dmp
memory/2784-0-0x0000000074BEE000-0x0000000074BEF000-memory.dmp
memory/2784-5-0x0000000074BE0000-0x0000000075390000-memory.dmp
memory/2784-6-0x0000000005630000-0x000000000564A000-memory.dmp
memory/2784-9-0x0000000008530000-0x00000000085CC000-memory.dmp
memory/2784-8-0x00000000058C0000-0x0000000005980000-memory.dmp
memory/2920-21-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2920-20-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2920-44-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2920-43-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2920-40-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2920-102-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2920-101-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2920-41-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2920-24-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2920-100-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2920-99-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2920-98-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2920-97-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2920-26-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2920-23-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2920-48-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2920-88-0x0000000010000000-0x0000000010019000-memory.dmp
memory/2920-92-0x0000000010000000-0x0000000010019000-memory.dmp
memory/2920-91-0x0000000010000000-0x0000000010019000-memory.dmp
memory/2920-93-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2920-94-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2920-95-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2920-96-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3304-74-0x0000000000400000-0x0000000000478000-memory.dmp
memory/3304-72-0x0000000000400000-0x0000000000478000-memory.dmp
memory/3304-71-0x0000000000400000-0x0000000000478000-memory.dmp
memory/4420-80-0x0000000000400000-0x0000000000424000-memory.dmp
memory/4420-81-0x0000000000400000-0x0000000000424000-memory.dmp
memory/4420-82-0x0000000000400000-0x0000000000424000-memory.dmp