Analysis
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max time kernel
150s -
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
06-12-2024 02:01
Static task
static1
Behavioral task
behavioral1
Sample
00a87ff3c6352b93575ed9b1122a9c77750c2b31e9ee4051e518c582a83b26a9.exe
Resource
win7-20240903-en
General
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Target
00a87ff3c6352b93575ed9b1122a9c77750c2b31e9ee4051e518c582a83b26a9.exe
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Size
1.0MB
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MD5
b29b16ebb9b0e72685abcb3d1bb10ecb
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SHA1
0447f64739d8b3ff0f1eaa9f8a33ac4bf5a83b9e
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SHA256
00a87ff3c6352b93575ed9b1122a9c77750c2b31e9ee4051e518c582a83b26a9
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SHA512
11caef5f251c76848cb02b9c7a4a4bd070fabcca11b5dc5b65e8e4c74b3ac1618fd775712a4a839324713d538d935dc6afc9767c2990bed1736448cd43d1419c
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SSDEEP
24576:nEFEYFTBWob0zYtxuPjwx6EEsRId90km:EFxFISxUwDRE9T
Malware Config
Extracted
remcos
8846455
windowsoctarem.duckdns.org:56892
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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
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mutex
4765-HH3V0S
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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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startup_value
Remcos
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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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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 3424 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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation 00a87ff3c6352b93575ed9b1122a9c77750c2b31e9ee4051e518c582a83b26a9.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4684 set thread context of 1804 4684 00a87ff3c6352b93575ed9b1122a9c77750c2b31e9ee4051e518c582a83b26a9.exe 102 -
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 4 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 00a87ff3c6352b93575ed9b1122a9c77750c2b31e9ee4051e518c582a83b26a9.exe 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 00a87ff3c6352b93575ed9b1122a9c77750c2b31e9ee4051e518c582a83b26a9.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 3112 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 3424 powershell.exe 4684 00a87ff3c6352b93575ed9b1122a9c77750c2b31e9ee4051e518c582a83b26a9.exe 4684 00a87ff3c6352b93575ed9b1122a9c77750c2b31e9ee4051e518c582a83b26a9.exe 4684 00a87ff3c6352b93575ed9b1122a9c77750c2b31e9ee4051e518c582a83b26a9.exe 4684 00a87ff3c6352b93575ed9b1122a9c77750c2b31e9ee4051e518c582a83b26a9.exe 3424 powershell.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 3424 powershell.exe Token: SeDebugPrivilege 4684 00a87ff3c6352b93575ed9b1122a9c77750c2b31e9ee4051e518c582a83b26a9.exe -
Suspicious use of WriteProcessMemory 24 IoCs
description pid Process procid_target PID 4684 wrote to memory of 3424 4684 00a87ff3c6352b93575ed9b1122a9c77750c2b31e9ee4051e518c582a83b26a9.exe 96 PID 4684 wrote to memory of 3424 4684 00a87ff3c6352b93575ed9b1122a9c77750c2b31e9ee4051e518c582a83b26a9.exe 96 PID 4684 wrote to memory of 3424 4684 00a87ff3c6352b93575ed9b1122a9c77750c2b31e9ee4051e518c582a83b26a9.exe 96 PID 4684 wrote to memory of 3112 4684 00a87ff3c6352b93575ed9b1122a9c77750c2b31e9ee4051e518c582a83b26a9.exe 98 PID 4684 wrote to memory of 3112 4684 00a87ff3c6352b93575ed9b1122a9c77750c2b31e9ee4051e518c582a83b26a9.exe 98 PID 4684 wrote to memory of 3112 4684 00a87ff3c6352b93575ed9b1122a9c77750c2b31e9ee4051e518c582a83b26a9.exe 98 PID 4684 wrote to memory of 4712 4684 00a87ff3c6352b93575ed9b1122a9c77750c2b31e9ee4051e518c582a83b26a9.exe 100 PID 4684 wrote to memory of 4712 4684 00a87ff3c6352b93575ed9b1122a9c77750c2b31e9ee4051e518c582a83b26a9.exe 100 PID 4684 wrote to memory of 4712 4684 00a87ff3c6352b93575ed9b1122a9c77750c2b31e9ee4051e518c582a83b26a9.exe 100 PID 4684 wrote to memory of 4384 4684 00a87ff3c6352b93575ed9b1122a9c77750c2b31e9ee4051e518c582a83b26a9.exe 101 PID 4684 wrote to memory of 4384 4684 00a87ff3c6352b93575ed9b1122a9c77750c2b31e9ee4051e518c582a83b26a9.exe 101 PID 4684 wrote to memory of 4384 4684 00a87ff3c6352b93575ed9b1122a9c77750c2b31e9ee4051e518c582a83b26a9.exe 101 PID 4684 wrote to memory of 1804 4684 00a87ff3c6352b93575ed9b1122a9c77750c2b31e9ee4051e518c582a83b26a9.exe 102 PID 4684 wrote to memory of 1804 4684 00a87ff3c6352b93575ed9b1122a9c77750c2b31e9ee4051e518c582a83b26a9.exe 102 PID 4684 wrote to memory of 1804 4684 00a87ff3c6352b93575ed9b1122a9c77750c2b31e9ee4051e518c582a83b26a9.exe 102 PID 4684 wrote to memory of 1804 4684 00a87ff3c6352b93575ed9b1122a9c77750c2b31e9ee4051e518c582a83b26a9.exe 102 PID 4684 wrote to memory of 1804 4684 00a87ff3c6352b93575ed9b1122a9c77750c2b31e9ee4051e518c582a83b26a9.exe 102 PID 4684 wrote to memory of 1804 4684 00a87ff3c6352b93575ed9b1122a9c77750c2b31e9ee4051e518c582a83b26a9.exe 102 PID 4684 wrote to memory of 1804 4684 00a87ff3c6352b93575ed9b1122a9c77750c2b31e9ee4051e518c582a83b26a9.exe 102 PID 4684 wrote to memory of 1804 4684 00a87ff3c6352b93575ed9b1122a9c77750c2b31e9ee4051e518c582a83b26a9.exe 102 PID 4684 wrote to memory of 1804 4684 00a87ff3c6352b93575ed9b1122a9c77750c2b31e9ee4051e518c582a83b26a9.exe 102 PID 4684 wrote to memory of 1804 4684 00a87ff3c6352b93575ed9b1122a9c77750c2b31e9ee4051e518c582a83b26a9.exe 102 PID 4684 wrote to memory of 1804 4684 00a87ff3c6352b93575ed9b1122a9c77750c2b31e9ee4051e518c582a83b26a9.exe 102 PID 4684 wrote to memory of 1804 4684 00a87ff3c6352b93575ed9b1122a9c77750c2b31e9ee4051e518c582a83b26a9.exe 102
Processes
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C:\Users\Admin\AppData\Local\Temp\00a87ff3c6352b93575ed9b1122a9c77750c2b31e9ee4051e518c582a83b26a9.exe"C:\Users\Admin\AppData\Local\Temp\00a87ff3c6352b93575ed9b1122a9c77750c2b31e9ee4051e518c582a83b26a9.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4684 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\zkCXHdkRhSWE.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3424
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zkCXHdkRhSWE" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE31C.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:3112
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C:\Users\Admin\AppData\Local\Temp\00a87ff3c6352b93575ed9b1122a9c77750c2b31e9ee4051e518c582a83b26a9.exe"C:\Users\Admin\AppData\Local\Temp\00a87ff3c6352b93575ed9b1122a9c77750c2b31e9ee4051e518c582a83b26a9.exe"2⤵PID:4712
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C:\Users\Admin\AppData\Local\Temp\00a87ff3c6352b93575ed9b1122a9c77750c2b31e9ee4051e518c582a83b26a9.exe"C:\Users\Admin\AppData\Local\Temp\00a87ff3c6352b93575ed9b1122a9c77750c2b31e9ee4051e518c582a83b26a9.exe"2⤵PID:4384
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C:\Users\Admin\AppData\Local\Temp\00a87ff3c6352b93575ed9b1122a9c77750c2b31e9ee4051e518c582a83b26a9.exe"C:\Users\Admin\AppData\Local\Temp\00a87ff3c6352b93575ed9b1122a9c77750c2b31e9ee4051e518c582a83b26a9.exe"2⤵
- System Location Discovery: System Language Discovery
PID:1804
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
1KB
MD540f905b638959ff233730f37f4c3dd83
SHA1359e97727b0e62a28f46e8ce4b59f416a5ef13c0
SHA256dd70aea351a49371fddb6fdd82f441d01e08db6b6e640b5ae339739be168f752
SHA5121c38dbd722b00d3c0d7b4edeb098ab166ab51bd5e848ba71eb1f632d468849f05b74088b1f12df6c4e334f13286ea9640d8adfd7285e84a48aae9f148ce8da70