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Analysis
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max time kernel
148s -
max time network
159s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
03/02/2023, 18:30
Static task
static1
Behavioral task
behavioral1
Sample
Mwqtxjbh.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
Mwqtxjbh.exe
Resource
win10v2004-20220812-en
General
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Target
Mwqtxjbh.exe
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Size
1.2MB
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MD5
ecaf214bde2e9e856ff914ff601323eb
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SHA1
b20382c8f2337277c3467b07f395cda96827f497
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SHA256
1a42950011efa48efad99c53904d84f0d89ee37077edce320f9781a68cfa9c4f
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SHA512
fe6de7336f518c0826b2fcf2769a2639c57a3efd43f8d7a1b572229ebe234cb21199e7c973b301c47d48715926c46db0a8d3197fe680e5fd67295aae907efcac
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SSDEEP
24576:TLz3VowLzh0xOxua+8uTUcQTWTbh9/+rHZ8zZQ6gqtQkBMATHXUelVE6:jVzl453DXQTZre9QRqtNRX7
Malware Config
Extracted
remcos
2.7.1 Pro
MIMIBOY
91.231.84.41:52651
127.0.0.1:52651
10.5.175.21:52651
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audio_folder
MicRecords
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audio_path
%AppData%
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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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install_path
%AppData%
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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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keylog_path
%AppData%
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mouse_option
false
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mutex
Remcos-SURYWD
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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
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take_screenshot_title
wikipedia;solitaire;
Signatures
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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-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation Mwqtxjbh.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Snmqo = "\"C:\\Users\\Admin\\AppData\\Roaming\\Wbnjnlwiifu\\Snmqo.exe\"" Mwqtxjbh.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 892 set thread context of 2188 892 Mwqtxjbh.exe 87 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 3740 powershell.exe 3740 powershell.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 892 Mwqtxjbh.exe Token: SeDebugPrivilege 3740 powershell.exe -
Suspicious use of WriteProcessMemory 13 IoCs
description pid Process procid_target PID 892 wrote to memory of 3740 892 Mwqtxjbh.exe 77 PID 892 wrote to memory of 3740 892 Mwqtxjbh.exe 77 PID 892 wrote to memory of 3740 892 Mwqtxjbh.exe 77 PID 892 wrote to memory of 2188 892 Mwqtxjbh.exe 87 PID 892 wrote to memory of 2188 892 Mwqtxjbh.exe 87 PID 892 wrote to memory of 2188 892 Mwqtxjbh.exe 87 PID 892 wrote to memory of 2188 892 Mwqtxjbh.exe 87 PID 892 wrote to memory of 2188 892 Mwqtxjbh.exe 87 PID 892 wrote to memory of 2188 892 Mwqtxjbh.exe 87 PID 892 wrote to memory of 2188 892 Mwqtxjbh.exe 87 PID 892 wrote to memory of 2188 892 Mwqtxjbh.exe 87 PID 892 wrote to memory of 2188 892 Mwqtxjbh.exe 87 PID 892 wrote to memory of 2188 892 Mwqtxjbh.exe 87
Processes
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C:\Users\Admin\AppData\Local\Temp\Mwqtxjbh.exe"C:\Users\Admin\AppData\Local\Temp\Mwqtxjbh.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:892 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3740
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C:\Users\Admin\AppData\Local\Temp\Mwqtxjbh.exeC:\Users\Admin\AppData\Local\Temp\Mwqtxjbh.exe2⤵PID:2188
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