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Analysis
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max time kernel
149s -
max time network
144s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
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submitted
11/02/2024, 13:30
General
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Target
IMG-WAA-00234857845959375893759375935Fluorspar.exe
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Size
827KB
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MD5
09c0458a52c78df06359a84791181802
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SHA1
8e5134ac5f51b07d95ead5a673cbc347ac4665ed
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SHA256
261db68ba8a04022ee11a91014745c952e443fa07818fe8b9319345fc4556a39
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SHA512
b80140ffc77f199f43c294d78a6d364817b73c51ba3ec6aff8d342d456124c5d53cdef605eae8a19e90679fe5b6afcd197e484968da5ed011d4f2266290f2c55
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SSDEEP
24576:2oB5UqdCA5d8kZhZdyd+qqHvibHrBjrMGDy:2w15dRNrh8vMGDy
Malware Config
Extracted
remcos
Daemon
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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
true
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install_flag
false
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keylog_crypt
true
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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
Rmc-667L8K
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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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Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
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Remcos
Remcos is a closed-source remote control and surveillance software.
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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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Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
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Suspicious use of NtCreateThreadExHideFromDebugger 2 IoCs
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Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
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Suspicious use of SetThreadContext 1 IoCs
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Drops file in Windows directory 1 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: MapViewOfSection 1 IoCs
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Suspicious use of SetWindowsHookEx 1 IoCs
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Suspicious use of WriteProcessMemory 6 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\IMG-WAA-00234857845959375893759375935Fluorspar.exe"C:\Users\Admin\AppData\Local\Temp\IMG-WAA-00234857845959375893759375935Fluorspar.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Program Files (x86)\windows mail\wab.exe"C:\Users\Admin\AppData\Local\Temp\IMG-WAA-00234857845959375893759375935Fluorspar.exe"2⤵
- Adds Run key to start application
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetWindowsHookEx
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
11KB
MD517ed1c86bd67e78ade4712be48a7d2bd
SHA11cc9fe86d6d6030b4dae45ecddce5907991c01a0
SHA256bd046e6497b304e4ea4ab102cab2b1f94ce09bde0eebba4c59942a732679e4eb
SHA5120cbed521e7d6d1f85977b3f7d3ca7ac34e1b5495b69fd8c7bfa1a846baf53b0ecd06fe1ad02a3599082ffacaf8c71a3bb4e32dec05f8e24859d736b828092cd5
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Filesize
1.7MB
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Filesize
856KB
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Filesize
24KB
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Filesize
1.7MB
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Filesize
4KB
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Filesize
856KB
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Filesize
16.4MB
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Filesize
856KB
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Filesize
16.4MB
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Filesize
16.4MB
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Filesize
16.4MB
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Filesize
74.7MB
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Filesize
16.4MB
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Filesize
16.4MB
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Filesize
16.4MB
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Filesize
16.4MB
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Filesize
16.4MB
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Filesize
16.4MB
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Filesize
16.4MB
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Filesize
16.4MB
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Filesize
16.4MB
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Filesize
16.4MB
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Filesize
16.4MB
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Filesize
16.4MB
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Filesize
16.4MB
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Filesize
16.4MB
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Filesize
16.4MB
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Filesize
16.4MB
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Filesize
16.4MB
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Filesize
16.4MB
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Filesize
16.4MB
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Filesize
16.4MB
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Filesize
16.4MB
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Filesize
16.4MB
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Filesize
16.4MB
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Filesize
16.4MB
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Filesize
16.4MB
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Filesize
16.4MB
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Filesize
16.4MB
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Filesize
16.4MB
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Filesize
16.4MB
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Filesize
16.4MB
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Filesize
16.4MB
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Filesize
16.4MB
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Filesize
16.4MB
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Filesize
16.4MB
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Filesize
16.4MB
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Filesize
16.4MB
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Filesize
16.4MB
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Filesize
16.4MB
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Filesize
16.4MB
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Filesize
16.4MB
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Filesize
16.4MB
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Filesize
16.4MB
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Filesize
16.4MB
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Filesize
16.4MB
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Filesize
16.4MB
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Filesize
16.4MB
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Filesize
16.4MB
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Filesize
16.4MB
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Filesize
16.4MB
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Filesize
16.4MB
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Filesize
16.4MB
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Filesize
16.4MB
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Filesize
16.4MB
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Filesize
16.4MB