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Analysis
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max time kernel
150s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20230221-en -
resource tags
arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system -
submitted
19/05/2023, 16:09
Static task
static1
Behavioral task
behavioral1
Sample
a98a545874c06efde00c0c2a54c4e503.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
a98a545874c06efde00c0c2a54c4e503.exe
Resource
win10v2004-20230221-en
General
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Target
a98a545874c06efde00c0c2a54c4e503.exe
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Size
1.3MB
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MD5
a98a545874c06efde00c0c2a54c4e503
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SHA1
a35e935da33a72622e6da3507a1cab3e6aea3347
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SHA256
90f752930ccd1f6ae8292480b705f65f0ef2e70407b3db489651822ea1349f9f
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SHA512
bc6b7c9007d16ae46d8d6a8508325d43b9f2a1c3c40df5424427a2207f6618f0b27d86eaef5b5571c70360d7d3891903d9b734c3774ff3ca28ed84715854cb50
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SSDEEP
24576:BSCeIM5/f84n0Gz39WPLZuMRau+5IrtXOplftVBUlK15jDLbO7eyV:zvMFf84r9EoMfk0OjfDL67eI
Malware Config
Extracted
remcos
RemoteHost
top.noneabuse01.xyz:2070
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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
Rmc-3J1W3R
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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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Modifies WinLogon for persistence 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,\"C:\\Users\\Admin\\AppData\\Roaming\\msbuld.exe\"," a98a545874c06efde00c0c2a54c4e503.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-1-5-21-2805025096-2326403612-4231045514-1000\Control Panel\International\Geo\Nation a98a545874c06efde00c0c2a54c4e503.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 5076 set thread context of 3296 5076 a98a545874c06efde00c0c2a54c4e503.exe 85 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4372 powershell.exe 4372 powershell.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 4372 powershell.exe Token: SeDebugPrivilege 5076 a98a545874c06efde00c0c2a54c4e503.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 3296 a98a545874c06efde00c0c2a54c4e503.exe -
Suspicious use of WriteProcessMemory 15 IoCs
description pid Process procid_target PID 5076 wrote to memory of 4372 5076 a98a545874c06efde00c0c2a54c4e503.exe 83 PID 5076 wrote to memory of 4372 5076 a98a545874c06efde00c0c2a54c4e503.exe 83 PID 5076 wrote to memory of 4372 5076 a98a545874c06efde00c0c2a54c4e503.exe 83 PID 5076 wrote to memory of 3296 5076 a98a545874c06efde00c0c2a54c4e503.exe 85 PID 5076 wrote to memory of 3296 5076 a98a545874c06efde00c0c2a54c4e503.exe 85 PID 5076 wrote to memory of 3296 5076 a98a545874c06efde00c0c2a54c4e503.exe 85 PID 5076 wrote to memory of 3296 5076 a98a545874c06efde00c0c2a54c4e503.exe 85 PID 5076 wrote to memory of 3296 5076 a98a545874c06efde00c0c2a54c4e503.exe 85 PID 5076 wrote to memory of 3296 5076 a98a545874c06efde00c0c2a54c4e503.exe 85 PID 5076 wrote to memory of 3296 5076 a98a545874c06efde00c0c2a54c4e503.exe 85 PID 5076 wrote to memory of 3296 5076 a98a545874c06efde00c0c2a54c4e503.exe 85 PID 5076 wrote to memory of 3296 5076 a98a545874c06efde00c0c2a54c4e503.exe 85 PID 5076 wrote to memory of 3296 5076 a98a545874c06efde00c0c2a54c4e503.exe 85 PID 5076 wrote to memory of 3296 5076 a98a545874c06efde00c0c2a54c4e503.exe 85 PID 5076 wrote to memory of 3296 5076 a98a545874c06efde00c0c2a54c4e503.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\a98a545874c06efde00c0c2a54c4e503.exe"C:\Users\Admin\AppData\Local\Temp\a98a545874c06efde00c0c2a54c4e503.exe"1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5076 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMQA1AA==2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4372
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C:\Users\Admin\AppData\Local\Temp\a98a545874c06efde00c0c2a54c4e503.exeC:\Users\Admin\AppData\Local\Temp\a98a545874c06efde00c0c2a54c4e503.exe2⤵
- Suspicious use of SetWindowsHookEx
PID:3296
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
144B
MD5aeb60af4692fa5b88114fa42ea8109b3
SHA1e9f1cfc9044edda50b4c6d96ec7b7bd3c5949b98
SHA256e4a85788dfdd604d27e9fd5db01812ac450a91d2fda51e5ddc034d08997eeeb2
SHA512e3539d32629459dbd952bab41c64e91786c338e6136c40ac8f61a53624777251acf32e305979805e436f65e153a8df81d18e8247dde5ca1dd10470e998758fa4
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82