Analysis
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max time kernel
150s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20250314-en -
resource tags
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submitted
04/04/2025, 10:56
General
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Target
JavaUpdater943034.dll
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Size
32.7MB
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MD5
75627713338ce806cb48ecc8e9ce3d88
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SHA1
b810c2f943787beb80e5b7ba2450d8bbf3d529df
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SHA256
865f1405cbaf909e5679683be1afd267ed8dbb1035dde243e58ac89bd0e77e13
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SHA512
b946ad2f05554837977eada33545b5977c87025feaa17be907a2661534f58c981a730f2ded733cf934a9179db8318f6136af3bd396b93587b77e29fe8ff3cb90
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SSDEEP
393216:KHqVASlFpfZnwzokihqbVsRY+Jp06wgXrNS+IVWv/EXnpW:IqVA8VnbhqxsRY+bIgbNSUEXn
Malware Config
Extracted
remcos
RemoteHost
demo2025project.duckdns.org:30360
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audio_folder
MicRecords
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audio_path
ApplicationPath
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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-MB2LKE
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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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take_screenshot_option
false
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take_screenshot_time
5
Signatures
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Remcos
Remcos is a closed-source remote control and surveillance software.
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Remcos family
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Blocklisted process makes network request 38 IoCs
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System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
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Suspicious behavior: EnumeratesProcesses 64 IoCs
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Suspicious use of WriteProcessMemory 9 IoCs
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\JavaUpdater943034.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\JavaUpdater943034.dll,#12⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exe"C:\Windows\SysWOW64\rundll32.exe"3⤵
- Blocklisted process makes network request
- System Location Discovery: System Language Discovery
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
33.2MB
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Filesize
168KB
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100KB
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516KB
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4KB
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516KB
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4KB
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4KB
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4KB
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4KB
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4KB
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4KB
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4KB
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4KB
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4KB
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4KB
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4KB
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4KB
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4KB
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4KB
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4KB
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4KB
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4KB
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4KB
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Filesize
516KB
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516KB
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516KB
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516KB
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516KB
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516KB
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516KB
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516KB
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516KB
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516KB
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516KB
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516KB
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516KB
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516KB
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516KB
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516KB
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516KB
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516KB
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516KB
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516KB
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516KB
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516KB
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516KB
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516KB
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516KB
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516KB
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516KB
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516KB
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516KB
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516KB
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516KB
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516KB
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516KB
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516KB
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516KB
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516KB
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516KB
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516KB
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516KB
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516KB
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516KB
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516KB
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516KB
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516KB
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516KB
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516KB
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516KB
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516KB
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516KB
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516KB
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516KB
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516KB
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516KB
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516KB
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516KB
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Filesize
516KB
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Filesize
516KB
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Filesize
516KB
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Filesize
516KB
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Filesize
516KB