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Analysis
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max time kernel
149s -
max time network
145s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
17/09/2024, 14:48
Static task
static1
Behavioral task
behavioral1
Sample
AWB 41174448411.exe
Resource
win7-20240903-en
General
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Target
AWB 41174448411.exe
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Size
879KB
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MD5
b7f666dbb31c5ae7316d4a7a32fab0a8
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SHA1
f310928142cb104fb6133d0130270a8b35062591
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SHA256
0ea27f62b56bef4fe42893c728fefb4ec62cf7c1f56f40331697cb6ec0e1a60b
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SHA512
9bed657f901268e54fb4b36fcc15c27d64be532c47b7771f72baeb443071547615d2733400d804c7b66a6cb5889217033dbb8b7dc33ed0e30a5199edb78073a0
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SSDEEP
24576:ePJ3lwMzXGxCh9ZOBsi6CudnMZHbrC5zDY7zkU8Xnh:A99GYTOBcMZP8DRvX
Malware Config
Extracted
remcos
3456789
172.93.220.148:45682
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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
765-8M14I5
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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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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 228 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-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation AWB 41174448411.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4536 set thread context of 1872 4536 AWB 41174448411.exe 92 -
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 AWB 41174448411.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 AWB 41174448411.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 4212 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 228 powershell.exe 228 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 228 powershell.exe -
Suspicious use of WriteProcessMemory 18 IoCs
description pid Process procid_target PID 4536 wrote to memory of 228 4536 AWB 41174448411.exe 88 PID 4536 wrote to memory of 228 4536 AWB 41174448411.exe 88 PID 4536 wrote to memory of 228 4536 AWB 41174448411.exe 88 PID 4536 wrote to memory of 4212 4536 AWB 41174448411.exe 90 PID 4536 wrote to memory of 4212 4536 AWB 41174448411.exe 90 PID 4536 wrote to memory of 4212 4536 AWB 41174448411.exe 90 PID 4536 wrote to memory of 1872 4536 AWB 41174448411.exe 92 PID 4536 wrote to memory of 1872 4536 AWB 41174448411.exe 92 PID 4536 wrote to memory of 1872 4536 AWB 41174448411.exe 92 PID 4536 wrote to memory of 1872 4536 AWB 41174448411.exe 92 PID 4536 wrote to memory of 1872 4536 AWB 41174448411.exe 92 PID 4536 wrote to memory of 1872 4536 AWB 41174448411.exe 92 PID 4536 wrote to memory of 1872 4536 AWB 41174448411.exe 92 PID 4536 wrote to memory of 1872 4536 AWB 41174448411.exe 92 PID 4536 wrote to memory of 1872 4536 AWB 41174448411.exe 92 PID 4536 wrote to memory of 1872 4536 AWB 41174448411.exe 92 PID 4536 wrote to memory of 1872 4536 AWB 41174448411.exe 92 PID 4536 wrote to memory of 1872 4536 AWB 41174448411.exe 92
Processes
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C:\Users\Admin\AppData\Local\Temp\AWB 41174448411.exe"C:\Users\Admin\AppData\Local\Temp\AWB 41174448411.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4536 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\SZuXSONpovRq.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:228
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\SZuXSONpovRq" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF5AA.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:4212
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C:\Users\Admin\AppData\Local\Temp\AWB 41174448411.exe"C:\Users\Admin\AppData\Local\Temp\AWB 41174448411.exe"2⤵
- System Location Discovery: System Language Discovery
PID:1872
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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
MD5a43e629c702feebf9b20e45ae7733b84
SHA1eda54a6e2fe3bf3536ef4077725046e2d754fa9f
SHA256e8b63660d3b4d449bfc9914edb317cab7aa6e56bbd717604468750364047c182
SHA512370e0a3543d1a98ccc3b0f74a394588a1e12c3dd71f7b0f9d9bdc40f018c1fafaf27bb309d687c7e1705244a1aae4f5326a60d708d1a6d689a6ab5039fb222bd