Analysis
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max time kernel
29s -
max time network
27s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
20-01-2025 04:46
Static task
static1
General
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Target
c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe
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Size
2.3MB
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MD5
426f94c2250dfc1e6e796bfbe81bef0b
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SHA1
802296f4944a765d71c2b969df549b2fe561819a
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SHA256
c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4
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SHA512
a55b376f0b50a4d3e44c50960034192e90a51b24746ece5ca2b74d8571f30a5ad8420cf29d9ea435dfd4d946322d0d3ff33750c6439a5b094871a7ceb334644c
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SSDEEP
49152:Mh+ZkldoPK1Xav4aWGh+ZkldoPK1XadtV+XcM:d2cPK1daWf2cPK1RV
Malware Config
Extracted
remcos
2.4.5 Pro
RIA
2ffahbg8eydhr96hx3x2lje2ymygt5iq.duckdns.org:4431
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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
3
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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
remhost
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keylog_path
%AppData%
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mouse_option
false
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mutex
Remkqdjqsdguhsqgdfjqguhjfgcujqsdfgujhqsgdufh,sqhjdgdhjqsgdhjqghgsdhsqjgdj545d4564d64d64dqs4dq645q4s-57XAU6
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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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Njrat family
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Remcos family
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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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe -
Drops startup file 2 IoCs
description ioc Process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\advpack.url c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\RAVBg64.url LastFudCy.exe -
Executes dropped EXE 2 IoCs
pid Process 3632 LastFudCy.exe 3292 LastFudCy.exe -
AutoIT Executable 1 IoCs
AutoIT scripts compiled to PE executables.
resource yara_rule behavioral1/files/0x000b000000023bc0-4.dat autoit_exe -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 4500 set thread context of 2088 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 86 PID 3632 set thread context of 3292 3632 LastFudCy.exe 87 -
resource yara_rule behavioral1/memory/3292-31-0x0000000000400000-0x0000000000425000-memory.dmp upx behavioral1/memory/3292-39-0x0000000000400000-0x0000000000425000-memory.dmp upx behavioral1/memory/3292-43-0x0000000000400000-0x0000000000425000-memory.dmp upx behavioral1/memory/3292-40-0x0000000000400000-0x0000000000425000-memory.dmp upx behavioral1/memory/3292-38-0x0000000000400000-0x0000000000425000-memory.dmp upx -
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 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language LastFudCy.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language RegSvcs.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language LastFudCy.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe -
Suspicious use of AdjustPrivilegeToken 5 IoCs
description pid Process Token: SeDebugPrivilege 2088 RegSvcs.exe Token: 33 2088 RegSvcs.exe Token: SeIncBasePriorityPrivilege 2088 RegSvcs.exe Token: 33 2088 RegSvcs.exe Token: SeIncBasePriorityPrivilege 2088 RegSvcs.exe -
Suspicious use of FindShellTrayWindow 6 IoCs
pid Process 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 3632 LastFudCy.exe 3632 LastFudCy.exe 3632 LastFudCy.exe -
Suspicious use of SendNotifyMessage 6 IoCs
pid Process 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 3632 LastFudCy.exe 3632 LastFudCy.exe 3632 LastFudCy.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 3292 LastFudCy.exe -
Suspicious use of WriteProcessMemory 13 IoCs
description pid Process procid_target PID 4500 wrote to memory of 3632 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 83 PID 4500 wrote to memory of 3632 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 83 PID 4500 wrote to memory of 3632 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 83 PID 4500 wrote to memory of 2088 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 86 PID 4500 wrote to memory of 2088 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 86 PID 4500 wrote to memory of 2088 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 86 PID 4500 wrote to memory of 2088 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 86 PID 4500 wrote to memory of 2088 4500 c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe 86 PID 3632 wrote to memory of 3292 3632 LastFudCy.exe 87 PID 3632 wrote to memory of 3292 3632 LastFudCy.exe 87 PID 3632 wrote to memory of 3292 3632 LastFudCy.exe 87 PID 3632 wrote to memory of 3292 3632 LastFudCy.exe 87 PID 3632 wrote to memory of 3292 3632 LastFudCy.exe 87
Processes
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C:\Users\Admin\AppData\Local\Temp\c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe"C:\Users\Admin\AppData\Local\Temp\c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4.exe"1⤵
- Checks computer location settings
- Drops startup file
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:4500 -
C:\Users\Admin\AppData\Local\Temp\LastFudCy.exe"C:\Users\Admin\AppData\Local\Temp\LastFudCy.exe"2⤵
- Drops startup file
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:3632 -
C:\Users\Admin\AppData\Local\Temp\LastFudCy.exe"C:\Users\Admin\AppData\Local\Temp\LastFudCy.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:3292
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C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2088
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C:\Windows\System32\rundll32.exeC:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding1⤵PID:1760
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.3MB
MD50a236522a4053835ac2093099e535fcb
SHA13f039b58ff3db3f597cff65e9dcaa80b15fee28c
SHA2561ea5ebe3eac08648aa427c9a864e9c98407366981c6547281e134573c86074d7
SHA5122972be7422a82030e9dde987233cd1d1db8516c28c410c8c03d38acb68d9783a5bd6aa93f182129b0830223523b95633c1f3eee9869bd779bbd7b8de2ff9472f