Analysis
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max time kernel
419s -
max time network
421s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
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submitted
10-09-2024 16:00
General
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Target
ezyzip.zip
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Size
5.9MB
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MD5
100aabac8fd8766ba396a03ec81387dc
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SHA1
e6250df08d0582688a06b0fc3d84a27cc5a29feb
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SHA256
cbaf643a15c5a72bb396eaf1ff247b9ad1862271c1b35765851b39220102cde7
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SHA512
bbd39ed1168de1dca7331a1647ba8218b687a9486928a54a9b38b7e53a36042721667e4d730fde0b450868e372e8b73e54417c95e414e3fbadf6427ac4b1bdce
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SSDEEP
98304:SmMetA4nLjnWWL62vL+kqYv+3DNxTmDqBxVpdgTvM5TtcMTVBJlTbXfS69UH:SmTjWWzyZxyqBxLm05GGzJlTp9+
Malware Config
Extracted
remcos
RemoteHost
privmerkt.com:8922
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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-LAI9XP
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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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Executes dropped EXE 2 IoCs
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Loads dropped DLL 1 IoCs
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Adds Run key to start application 2 TTPs 1 IoCs
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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.
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Suspicious use of AdjustPrivilegeToken 4 IoCs
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Suspicious use of FindShellTrayWindow 1 IoCs
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Suspicious use of WriteProcessMemory 3 IoCs
Processes
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C:\Windows\Explorer.exeC:\Windows\Explorer.exe /idlist,,C:\Users\Admin\AppData\Local\Temp\ezyzip.zip1⤵
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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⤵
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C:\Program Files\7-Zip\7zG.exe"C:\Program Files\7-Zip\7zG.exe" x -o"C:\Users\Admin\AppData\Local\Temp\ezyzip\" -spe -an -ai#7zMap26113:92:7zEvent269931⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
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C:\Users\Admin\AppData\Local\Temp\ezyzip\2023 TRISHA ORGANIZERpdf.exe"C:\Users\Admin\AppData\Local\Temp\ezyzip\2023 TRISHA ORGANIZERpdf.exe"1⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
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C:\Users\Admin\AppData\Local\Temp\ezyzip\2023 TRISHA ORGANIZERpdf.exe"C:\Users\Admin\AppData\Local\Temp\ezyzip\2023 TRISHA ORGANIZERpdf.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
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C:\Windows\SysWOW64\cmd.execmd.exe /C reg add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "*UpdaterCisco" /t REG_SZ /d "rundll32.exe C:\Users\Admin\Documents\CiscoUpdater000_PARTIAL.dll",EntryPoint /f & exit2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\reg.exereg add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "*UpdaterCisco" /t REG_SZ /d "rundll32.exe C:\Users\Admin\Documents\CiscoUpdater000_PARTIAL.dll",EntryPoint /f3⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
6.1MB
MD54864a55cff27f686023456a22371e790
SHA16ed30c0371fe167d38411bfa6d720fcdcacc4f4c
SHA25608c7fb6067acc8ac207d28ab616c9ea5bc0d394956455d6a3eecb73f8010f7a2
SHA5124bd3a16435cca6ce7a7aa829eb967619a8b7c02598474e634442cffc55935870d54d844a04496bf9c7e8c29c40fae59ac6eb39c8550c091d06a28211491d0bfb
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Filesize
6.3MB
MD56c1d68c7960415c632429da5aa258062
SHA1c4de42e1b1de043c1a4224eacbd429d4fbef5764
SHA2565b9c3d8a7377aa103f13a12bbd81f9d833de987e1a39da3d1b30ef4a30437cfa
SHA5125d3b250636bc6ee96f4b3329a29d0d4b7cbebbcf7f7ed325725b2cbd9830d51f843b472b55f5c34845f90c69fe7f80e803e44b0142df443ab5c53b2af4805e86
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Filesize
520KB
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520KB
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520KB
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520KB
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520KB
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520KB
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520KB
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520KB
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520KB
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520KB
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520KB
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520KB
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520KB
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520KB
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520KB
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520KB
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520KB
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520KB
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520KB
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520KB
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520KB
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520KB
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520KB
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520KB
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520KB
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520KB
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520KB
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520KB
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520KB
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520KB
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520KB
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520KB
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520KB
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520KB
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520KB
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520KB
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520KB
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520KB
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520KB
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520KB
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520KB
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520KB
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520KB
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520KB
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520KB
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520KB
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520KB
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520KB
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520KB
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520KB
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520KB
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520KB
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520KB
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520KB
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520KB
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520KB
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520KB
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Filesize
520KB
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Filesize
520KB
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Filesize
520KB
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Filesize
520KB
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Filesize
520KB
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Filesize
520KB