Analysis
- max time kernel
149s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20240709-en - resource tags
- submitted
22/07/2024, 02:34
General
- Target 2b4fda8e2da146c16792352028880110N.exe
- Size 1.1MB
- Sample240722-c2fmgsvfjc
- 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
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mouse_option
false
-
mutex
Rmc-U29DLE
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screenshot_crypt
false
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screenshot_flag
false
-
screenshot_folder
Screenshots
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screenshot_path
%AppData%
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screenshot_time
10
-
take_screenshot_option
false
-
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 4 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 33 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\2b4fda8e2da146c16792352028880110N.exe"C:\Users\Admin\AppData\Local\Temp\2b4fda8e2da146c16792352028880110N.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\tmpF0C8.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\tfdbbedoriywezootkheit"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\vhiubxoqfqrbpnkslvtgtgdti"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\vhiubxoqfqrbpnkslvtgtgdti"3⤵
- Accesses Microsoft Outlook accounts
-
-
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\fboecpzktyjortywufghvkycjdgd"3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
__PSScriptPolicyTest_iiadcatd.3g1.ps1
tfdbbedoriywezootkheit
tmpF0C8.tmp
memory/616-70-0x0000000000400000-0x0000000000462000-memory.dmp
memory/616-75-0x0000000000400000-0x0000000000462000-memory.dmp
memory/616-69-0x0000000000400000-0x0000000000462000-memory.dmp
memory/2408-97-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2408-94-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2408-84-0x0000000010000000-0x0000000010019000-memory.dmp
memory/2408-88-0x0000000010000000-0x0000000010019000-memory.dmp
memory/2408-101-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2408-87-0x0000000010000000-0x0000000010019000-memory.dmp
memory/2408-100-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2408-99-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2408-98-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2408-19-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2408-96-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2408-26-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2408-30-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2408-47-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2408-38-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2408-31-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2408-45-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2408-44-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2408-95-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2408-42-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2408-93-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2408-91-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2408-43-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2668-68-0x0000000000400000-0x0000000000478000-memory.dmp
memory/2668-67-0x0000000000400000-0x0000000000478000-memory.dmp
memory/2668-66-0x0000000000400000-0x0000000000478000-memory.dmp
memory/4288-71-0x0000000000400000-0x0000000000424000-memory.dmp
memory/4288-77-0x0000000000400000-0x0000000000424000-memory.dmp
memory/4288-76-0x0000000000400000-0x0000000000424000-memory.dmp
memory/4496-6-0x0000000005800000-0x000000000581A000-memory.dmp
memory/4496-4-0x00000000056B0000-0x00000000056BA000-memory.dmp
memory/4496-8-0x0000000006230000-0x00000000062F0000-memory.dmp
memory/4496-3-0x00000000056D0000-0x0000000005762000-memory.dmp
memory/4496-9-0x0000000008780000-0x000000000881C000-memory.dmp
memory/4496-2-0x0000000005C80000-0x0000000006224000-memory.dmp
memory/4496-0-0x0000000074BCE000-0x0000000074BCF000-memory.dmp
memory/4496-7-0x0000000005830000-0x000000000583E000-memory.dmp
memory/4496-33-0x0000000074BC0000-0x0000000075370000-memory.dmp
memory/4496-5-0x0000000074BC0000-0x0000000075370000-memory.dmp
memory/4496-1-0x0000000000BB0000-0x0000000000CC4000-memory.dmp
memory/4816-49-0x0000000075450000-0x000000007549C000-memory.dmp
memory/4816-65-0x00000000076E0000-0x00000000076F1000-memory.dmp
memory/4816-64-0x0000000007760000-0x00000000077F6000-memory.dmp
memory/4816-63-0x0000000007550000-0x000000000755A000-memory.dmp
memory/4816-62-0x00000000074E0000-0x00000000074FA000-memory.dmp
memory/4816-78-0x0000000007710000-0x000000000771E000-memory.dmp
memory/4816-79-0x0000000007720000-0x0000000007734000-memory.dmp
memory/4816-80-0x0000000007820000-0x000000000783A000-memory.dmp
memory/4816-82-0x0000000007800000-0x0000000007808000-memory.dmp
memory/4816-61-0x0000000007B20000-0x000000000819A000-memory.dmp
memory/4816-60-0x00000000071A0000-0x0000000007243000-memory.dmp
memory/4816-59-0x0000000007180000-0x000000000719E000-memory.dmp
memory/4816-48-0x0000000006790000-0x00000000067C2000-memory.dmp
memory/4816-21-0x00000000052C0000-0x0000000005326000-memory.dmp
memory/4816-92-0x0000000074BC0000-0x0000000075370000-memory.dmp
memory/4816-41-0x0000000006710000-0x000000000675C000-memory.dmp
memory/4816-23-0x0000000005330000-0x0000000005396000-memory.dmp
memory/4816-40-0x00000000061A0000-0x00000000061BE000-memory.dmp
memory/4816-39-0x0000000005CE0000-0x0000000006034000-memory.dmp
memory/4816-20-0x0000000005220000-0x0000000005242000-memory.dmp
memory/4816-18-0x0000000074BC0000-0x0000000075370000-memory.dmp
memory/4816-17-0x0000000005400000-0x0000000005A28000-memory.dmp
memory/4816-16-0x0000000074BC0000-0x0000000075370000-memory.dmp
memory/4816-14-0x0000000004C10000-0x0000000004C46000-memory.dmp