Analysis
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max time kernel
149s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
10-12-2024 02:46
Static task
static1
Behavioral task
behavioral1
Sample
3B84DCE82113710E5AE3F379EBD9FA13.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
3B84DCE82113710E5AE3F379EBD9FA13.exe
Resource
win10v2004-20241007-en
General
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Target
3B84DCE82113710E5AE3F379EBD9FA13.exe
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Size
1.1MB
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MD5
3b84dce82113710e5ae3f379ebd9fa13
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SHA1
26df2f5f9ba223ce4848586582172c9c20516416
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SHA256
b25e19cd5dc45047c4ad68fbe940dd1f923800201666adf9164ec5fe5d74f6e4
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SHA512
299ed1e965189ff3d25bd6e12790d93648c0d69959eeab8d5d7c4563c3488764eadf968855782d50d68c98d67a6a63be80828367ec704a102c407ebd7a2fa871
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SSDEEP
24576:wHeZDOyc0wCqMXY1nhtFUSU6xNP1cQYY:wHbLm4ftFzx7c
Malware Config
Extracted
remcos
RemoteHost
45.149.241.204:435
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audio_folder
MicRecords
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audio_path
ApplicationPath
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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
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mutex
Rmc-DX92V7
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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
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take_screenshot_option
false
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take_screenshot_time
5
Signatures
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Remcos family
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Detected Nirsoft tools 3 IoCs
Free utilities often used by attackers which can steal passwords, product keys, etc.
resource yara_rule behavioral2/memory/2808-51-0x0000000000400000-0x0000000000478000-memory.dmp Nirsoft behavioral2/memory/3684-60-0x0000000000400000-0x0000000000462000-memory.dmp Nirsoft behavioral2/memory/1456-59-0x0000000000400000-0x0000000000424000-memory.dmp Nirsoft -
NirSoft MailPassView 1 IoCs
Password recovery tool for various email clients
resource yara_rule behavioral2/memory/3684-60-0x0000000000400000-0x0000000000462000-memory.dmp MailPassView -
NirSoft WebBrowserPassView 1 IoCs
Password recovery tool for various web browsers
resource yara_rule behavioral2/memory/2808-51-0x0000000000400000-0x0000000000478000-memory.dmp WebBrowserPassView -
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.
pid Process 2828 powershell.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation 3B84DCE82113710E5AE3F379EBD9FA13.exe -
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts 3B84DCE82113710E5AE3F379EBD9FA13.exe -
Suspicious use of SetThreadContext 4 IoCs
description pid Process procid_target PID 1640 set thread context of 216 1640 3B84DCE82113710E5AE3F379EBD9FA13.exe 101 PID 216 set thread context of 2808 216 3B84DCE82113710E5AE3F379EBD9FA13.exe 102 PID 216 set thread context of 3684 216 3B84DCE82113710E5AE3F379EBD9FA13.exe 104 PID 216 set thread context of 1456 216 3B84DCE82113710E5AE3F379EBD9FA13.exe 105 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 7 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 3B84DCE82113710E5AE3F379EBD9FA13.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 3B84DCE82113710E5AE3F379EBD9FA13.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 3B84DCE82113710E5AE3F379EBD9FA13.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 3B84DCE82113710E5AE3F379EBD9FA13.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 3B84DCE82113710E5AE3F379EBD9FA13.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2740 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
pid Process 2828 powershell.exe 2828 powershell.exe 2808 3B84DCE82113710E5AE3F379EBD9FA13.exe 2808 3B84DCE82113710E5AE3F379EBD9FA13.exe 1456 3B84DCE82113710E5AE3F379EBD9FA13.exe 1456 3B84DCE82113710E5AE3F379EBD9FA13.exe 2808 3B84DCE82113710E5AE3F379EBD9FA13.exe 2808 3B84DCE82113710E5AE3F379EBD9FA13.exe -
Suspicious behavior: MapViewOfSection 4 IoCs
pid Process 216 3B84DCE82113710E5AE3F379EBD9FA13.exe 216 3B84DCE82113710E5AE3F379EBD9FA13.exe 216 3B84DCE82113710E5AE3F379EBD9FA13.exe 216 3B84DCE82113710E5AE3F379EBD9FA13.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2828 powershell.exe Token: SeDebugPrivilege 1456 3B84DCE82113710E5AE3F379EBD9FA13.exe -
Suspicious use of WriteProcessMemory 31 IoCs
description pid Process procid_target PID 1640 wrote to memory of 2828 1640 3B84DCE82113710E5AE3F379EBD9FA13.exe 97 PID 1640 wrote to memory of 2828 1640 3B84DCE82113710E5AE3F379EBD9FA13.exe 97 PID 1640 wrote to memory of 2828 1640 3B84DCE82113710E5AE3F379EBD9FA13.exe 97 PID 1640 wrote to memory of 2740 1640 3B84DCE82113710E5AE3F379EBD9FA13.exe 99 PID 1640 wrote to memory of 2740 1640 3B84DCE82113710E5AE3F379EBD9FA13.exe 99 PID 1640 wrote to memory of 2740 1640 3B84DCE82113710E5AE3F379EBD9FA13.exe 99 PID 1640 wrote to memory of 216 1640 3B84DCE82113710E5AE3F379EBD9FA13.exe 101 PID 1640 wrote to memory of 216 1640 3B84DCE82113710E5AE3F379EBD9FA13.exe 101 PID 1640 wrote to memory of 216 1640 3B84DCE82113710E5AE3F379EBD9FA13.exe 101 PID 1640 wrote to memory of 216 1640 3B84DCE82113710E5AE3F379EBD9FA13.exe 101 PID 1640 wrote to memory of 216 1640 3B84DCE82113710E5AE3F379EBD9FA13.exe 101 PID 1640 wrote to memory of 216 1640 3B84DCE82113710E5AE3F379EBD9FA13.exe 101 PID 1640 wrote to memory of 216 1640 3B84DCE82113710E5AE3F379EBD9FA13.exe 101 PID 1640 wrote to memory of 216 1640 3B84DCE82113710E5AE3F379EBD9FA13.exe 101 PID 1640 wrote to memory of 216 1640 3B84DCE82113710E5AE3F379EBD9FA13.exe 101 PID 1640 wrote to memory of 216 1640 3B84DCE82113710E5AE3F379EBD9FA13.exe 101 PID 216 wrote to memory of 2808 216 3B84DCE82113710E5AE3F379EBD9FA13.exe 102 PID 216 wrote to memory of 2808 216 3B84DCE82113710E5AE3F379EBD9FA13.exe 102 PID 216 wrote to memory of 2808 216 3B84DCE82113710E5AE3F379EBD9FA13.exe 102 PID 216 wrote to memory of 2808 216 3B84DCE82113710E5AE3F379EBD9FA13.exe 102 PID 216 wrote to memory of 1084 216 3B84DCE82113710E5AE3F379EBD9FA13.exe 103 PID 216 wrote to memory of 1084 216 3B84DCE82113710E5AE3F379EBD9FA13.exe 103 PID 216 wrote to memory of 1084 216 3B84DCE82113710E5AE3F379EBD9FA13.exe 103 PID 216 wrote to memory of 3684 216 3B84DCE82113710E5AE3F379EBD9FA13.exe 104 PID 216 wrote to memory of 3684 216 3B84DCE82113710E5AE3F379EBD9FA13.exe 104 PID 216 wrote to memory of 3684 216 3B84DCE82113710E5AE3F379EBD9FA13.exe 104 PID 216 wrote to memory of 3684 216 3B84DCE82113710E5AE3F379EBD9FA13.exe 104 PID 216 wrote to memory of 1456 216 3B84DCE82113710E5AE3F379EBD9FA13.exe 105 PID 216 wrote to memory of 1456 216 3B84DCE82113710E5AE3F379EBD9FA13.exe 105 PID 216 wrote to memory of 1456 216 3B84DCE82113710E5AE3F379EBD9FA13.exe 105 PID 216 wrote to memory of 1456 216 3B84DCE82113710E5AE3F379EBD9FA13.exe 105
Processes
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C:\Users\Admin\AppData\Local\Temp\3B84DCE82113710E5AE3F379EBD9FA13.exe"C:\Users\Admin\AppData\Local\Temp\3B84DCE82113710E5AE3F379EBD9FA13.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1640 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\OZIxXQGIP.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2828
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\OZIxXQGIP" /XML "C:\Users\Admin\AppData\Local\Temp\tmp58E9.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2740
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C:\Users\Admin\AppData\Local\Temp\3B84DCE82113710E5AE3F379EBD9FA13.exe"C:\Users\Admin\AppData\Local\Temp\3B84DCE82113710E5AE3F379EBD9FA13.exe"2⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:216 -
C:\Users\Admin\AppData\Local\Temp\3B84DCE82113710E5AE3F379EBD9FA13.exeC:\Users\Admin\AppData\Local\Temp\3B84DCE82113710E5AE3F379EBD9FA13.exe /stext "C:\Users\Admin\AppData\Local\Temp\kwzbnhbqkfepfckqjvaqbntkxmdwkpchy"3⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:2808
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C:\Users\Admin\AppData\Local\Temp\3B84DCE82113710E5AE3F379EBD9FA13.exeC:\Users\Admin\AppData\Local\Temp\3B84DCE82113710E5AE3F379EBD9FA13.exe /stext "C:\Users\Admin\AppData\Local\Temp\uyelo"3⤵PID:1084
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C:\Users\Admin\AppData\Local\Temp\3B84DCE82113710E5AE3F379EBD9FA13.exeC:\Users\Admin\AppData\Local\Temp\3B84DCE82113710E5AE3F379EBD9FA13.exe /stext "C:\Users\Admin\AppData\Local\Temp\uyelo"3⤵
- Accesses Microsoft Outlook accounts
- System Location Discovery: System Language Discovery
PID:3684
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C:\Users\Admin\AppData\Local\Temp\3B84DCE82113710E5AE3F379EBD9FA13.exeC:\Users\Admin\AppData\Local\Temp\3B84DCE82113710E5AE3F379EBD9FA13.exe /stext "C:\Users\Admin\AppData\Local\Temp\xsjepsxmu"3⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1456
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Network
MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
4KB
MD517eece3240d08aa4811cf1007cfe2585
SHA16c10329f61455d1c96e041b6f89ee6260af3bd0f
SHA2567cc0db44c7b23e4894fe11f0d8d84b2a82ad667eb1e3504192f3ba729f9a7903
SHA512a7de8d6322410ec89f76c70a7159645e8913774f38b84aafeeeb9f90dc3b9aa74a0a280d0bb6674790c04a8ff2d059327f02ebfda6c4486778d53b7fc6da6370
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Filesize
1KB
MD5da4bc7e95ca910ad8215dfed3883f839
SHA1f762572a590b1f1a99b892f50e3d6d9693441b73
SHA256b598d1cfb7b4827e2ef2c71df3a1627ff20970e763924a08d5c2a49d85f4ec67
SHA512c4abc197a23f9d5ef62802848a76edbb887ad352ad27d9d9fa445ce7b85572c0186cc9ee7306478c66dd5b289c39dc5439602ecaeb64e22cd31beef3373bce5a