Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
22-11-2024 03:14
Static task
static1
Behavioral task
behavioral1
Sample
e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/System.dll
Resource
win7-20241023-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20241007-en
General
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Target
e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe
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Size
681KB
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MD5
cf4530628bdb401e066ea81e86403d77
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SHA1
b929d4f89e537b8f932bebc75df0959ef9b406ee
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SHA256
e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260
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SHA512
ab29e221be8b0b8318ebcd97d638034bf80368221713e15b3b016a0aa42f2f142c2ce2de68d3eb8a99a6d65e43a6268ea1a4db0f7436f6bcc5ff0e222c691d4a
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SSDEEP
12288:+3vFfP1t7YQ6RTw6F+i4nGxcigHvPyagJQMzoocD/f9Lw:A1r7YQ9lcc9Hv0QMzoZpw
Malware Config
Extracted
remcos
RemoteHost
45.133.158.36:11371
45.133.158.36:10051
45.133.158.36:10050
45.133.158.36:24554
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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
-
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-CDCZ2K
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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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Guloader family
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Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
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Remcos family
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Detected Nirsoft tools 9 IoCs
Free utilities often used by attackers which can steal passwords, product keys, etc.
Processes:
resource yara_rule behavioral2/memory/3972-43-0x0000000000400000-0x0000000000478000-memory.dmp Nirsoft behavioral2/memory/4984-42-0x0000000000400000-0x0000000000462000-memory.dmp Nirsoft behavioral2/memory/4768-46-0x0000000000400000-0x0000000000424000-memory.dmp Nirsoft behavioral2/memory/4768-50-0x0000000000400000-0x0000000000424000-memory.dmp Nirsoft behavioral2/memory/4768-54-0x0000000000400000-0x0000000000424000-memory.dmp Nirsoft behavioral2/memory/4984-41-0x0000000000400000-0x0000000000462000-memory.dmp Nirsoft behavioral2/memory/3972-39-0x0000000000400000-0x0000000000478000-memory.dmp Nirsoft behavioral2/memory/4984-38-0x0000000000400000-0x0000000000462000-memory.dmp Nirsoft behavioral2/memory/3972-56-0x0000000000400000-0x0000000000478000-memory.dmp Nirsoft -
NirSoft MailPassView 3 IoCs
Password recovery tool for various email clients
Processes:
resource yara_rule behavioral2/memory/4984-42-0x0000000000400000-0x0000000000462000-memory.dmp MailPassView behavioral2/memory/4984-41-0x0000000000400000-0x0000000000462000-memory.dmp MailPassView behavioral2/memory/4984-38-0x0000000000400000-0x0000000000462000-memory.dmp MailPassView -
NirSoft WebBrowserPassView 3 IoCs
Password recovery tool for various web browsers
Processes:
resource yara_rule behavioral2/memory/3972-43-0x0000000000400000-0x0000000000478000-memory.dmp WebBrowserPassView behavioral2/memory/3972-39-0x0000000000400000-0x0000000000478000-memory.dmp WebBrowserPassView behavioral2/memory/3972-56-0x0000000000400000-0x0000000000478000-memory.dmp WebBrowserPassView -
Loads dropped DLL 2 IoCs
Processes:
e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exepid process 4760 e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe 4760 e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.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
Processes:
e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe -
Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
Processes:
e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exepid process 4540 e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
Processes:
e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exee721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exepid process 4760 e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe 4540 e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe -
Suspicious use of SetThreadContext 4 IoCs
Processes:
e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exee721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exedescription pid process target process PID 4760 set thread context of 4540 4760 e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe PID 4540 set thread context of 3972 4540 e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe PID 4540 set thread context of 4984 4540 e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe PID 4540 set thread context of 4768 4540 e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe -
Drops file in Program Files directory 3 IoCs
Processes:
e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exedescription ioc process File opened for modification C:\Program Files (x86)\Common Files\Separable80\Redegjortes184.Dis e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe File opened for modification C:\Program Files (x86)\Common Files\fiksersaltenes\cubmaster.ini e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe File opened for modification C:\Program Files (x86)\Common Files\situationer.ini e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe -
Drops file in Windows directory 2 IoCs
Processes:
e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exedescription ioc process File opened for modification C:\Windows\Millet20.ton e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe File opened for modification C:\Windows\honduras.Ski e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe -
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 5 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exee721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exee721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exee721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exee721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exee721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exepid process 3972 e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe 3972 e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe 4768 e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe 4768 e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe 3972 e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe 3972 e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe -
Suspicious behavior: MapViewOfSection 4 IoCs
Processes:
e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exee721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exepid process 4760 e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe 4540 e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe 4540 e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe 4540 e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exedescription pid process Token: SeDebugPrivilege 4768 e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exee721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exedescription pid process target process PID 4760 wrote to memory of 4540 4760 e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe PID 4760 wrote to memory of 4540 4760 e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe PID 4760 wrote to memory of 4540 4760 e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe PID 4760 wrote to memory of 4540 4760 e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe PID 4760 wrote to memory of 4540 4760 e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe PID 4540 wrote to memory of 3972 4540 e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe PID 4540 wrote to memory of 3972 4540 e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe PID 4540 wrote to memory of 3972 4540 e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe PID 4540 wrote to memory of 4984 4540 e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe PID 4540 wrote to memory of 4984 4540 e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe PID 4540 wrote to memory of 4984 4540 e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe PID 4540 wrote to memory of 4768 4540 e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe PID 4540 wrote to memory of 4768 4540 e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe PID 4540 wrote to memory of 4768 4540 e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe"C:\Users\Admin\AppData\Local\Temp\e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4760 -
C:\Users\Admin\AppData\Local\Temp\e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe"C:\Users\Admin\AppData\Local\Temp\e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe"2⤵
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4540 -
C:\Users\Admin\AppData\Local\Temp\e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exeC:\Users\Admin\AppData\Local\Temp\e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe /stext "C:\Users\Admin\AppData\Local\Temp\ctfzmyjnglpabqwfedkrsasla"3⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:3972
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C:\Users\Admin\AppData\Local\Temp\e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exeC:\Users\Admin\AppData\Local\Temp\e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe /stext "C:\Users\Admin\AppData\Local\Temp\evlsmquhtthfdesjooxkvmnujhko"3⤵
- Accesses Microsoft Outlook accounts
- System Location Discovery: System Language Discovery
PID:4984
-
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C:\Users\Admin\AppData\Local\Temp\e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exeC:\Users\Admin\AppData\Local\Temp\e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260.exe /stext "C:\Users\Admin\AppData\Local\Temp\ppyknjfjpbzsnkgvfzsmgralsocxudx"3⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4768
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
4KB
MD575379d3dcbcea6a69bc75b884816dd40
SHA17e073a03c3bdbbc60375ddbe56bba211c3d412a6
SHA256cab559f3bbe4a0beb194dffca723b3072184b92687100462eaab04d66fff8de9
SHA512710c2cee369a57a0039fc0d0c59de6118780210ef60ad0daf374f03ba94ab08039bc2aff821f7c99a0ecd0e16189c52e5b6d630b3d541f7b11375f134b985e8c
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Filesize
11KB
MD5960a5c48e25cf2bca332e74e11d825c9
SHA1da35c6816ace5daf4c6c1d57b93b09a82ecdc876
SHA256484f8e9f194ed9016274ef3672b2c52ed5f574fb71d3884edf3c222b758a75a2
SHA512cc450179e2d0d56aee2ccf8163d3882978c4e9c1aa3d3a95875fe9ba9831e07ddfd377111dc67f801fa53b6f468a418f086f1de7c71e0a5b634e1ae2a67cd3da