Analysis
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max time kernel
149s -
max time network
126s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
10-05-2024 14:11
Behavioral task
behavioral1
Sample
49f4cc2bea40cf52315aed5b939de396212e16902e5ea23ff699c372d609cbb2.exe
Resource
win10v2004-20240426-en
Behavioral task
behavioral2
Sample
49f4cc2bea40cf52315aed5b939de396212e16902e5ea23ff699c372d609cbb2.exe
Resource
win11-20240426-en
General
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Target
49f4cc2bea40cf52315aed5b939de396212e16902e5ea23ff699c372d609cbb2.exe
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Size
469KB
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MD5
95939f7e0943f1428467c77c293e6036
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SHA1
892d0c06a2c9377b716e3e456c15fa0a5c2d070a
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SHA256
49f4cc2bea40cf52315aed5b939de396212e16902e5ea23ff699c372d609cbb2
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SHA512
ad55cf00384915a788343eff3b54811050e3964f4c6598515465dce462bce71116fe52d03057ecf202fa08ef405df70c1bf07dfe65ccf37f3e58f16bf6e64f56
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SSDEEP
12288:umnk7iLJbpIpiRL6I2WhSKQ9ZsfZQSa3n9:WiLJbpI7I2WhQqZ7m9
Malware Config
Extracted
remcos
EdgeUpdater
rornfl12.duckdns.org:2405
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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
Edgeupdater.exe
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copy_folder
microsoftEdge
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delete_file
false
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hide_file
true
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hide_keylog_file
false
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install_flag
true
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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-NZEE04
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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
Edgeupdater
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take_screenshot_option
false
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take_screenshot_time
5
Signatures
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Adds policy Run key to start application 2 TTPs 4 IoCs
Processes:
49f4cc2bea40cf52315aed5b939de396212e16902e5ea23ff699c372d609cbb2.exeEdgeupdater.exedescription ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run 49f4cc2bea40cf52315aed5b939de396212e16902e5ea23ff699c372d609cbb2.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\Edgeupdater = "\"C:\\ProgramData\\microsoftEdge\\Edgeupdater.exe\"" 49f4cc2bea40cf52315aed5b939de396212e16902e5ea23ff699c372d609cbb2.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run Edgeupdater.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\Edgeupdater = "\"C:\\ProgramData\\microsoftEdge\\Edgeupdater.exe\"" Edgeupdater.exe -
Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
49f4cc2bea40cf52315aed5b939de396212e16902e5ea23ff699c372d609cbb2.exeWScript.exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\Control Panel\International\Geo\Nation 49f4cc2bea40cf52315aed5b939de396212e16902e5ea23ff699c372d609cbb2.exe Key value queried \REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\Control Panel\International\Geo\Nation WScript.exe -
Executes dropped EXE 1 IoCs
Processes:
Edgeupdater.exepid Process 3412 Edgeupdater.exe -
Adds Run key to start application 2 TTPs 4 IoCs
Processes:
49f4cc2bea40cf52315aed5b939de396212e16902e5ea23ff699c372d609cbb2.exeEdgeupdater.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Edgeupdater = "\"C:\\ProgramData\\microsoftEdge\\Edgeupdater.exe\"" 49f4cc2bea40cf52315aed5b939de396212e16902e5ea23ff699c372d609cbb2.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Edgeupdater = "\"C:\\ProgramData\\microsoftEdge\\Edgeupdater.exe\"" 49f4cc2bea40cf52315aed5b939de396212e16902e5ea23ff699c372d609cbb2.exe Set value (str) \REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Edgeupdater = "\"C:\\ProgramData\\microsoftEdge\\Edgeupdater.exe\"" Edgeupdater.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Edgeupdater = "\"C:\\ProgramData\\microsoftEdge\\Edgeupdater.exe\"" Edgeupdater.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Modifies registry class 1 IoCs
Processes:
49f4cc2bea40cf52315aed5b939de396212e16902e5ea23ff699c372d609cbb2.exedescription ioc Process Key created \REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000_Classes\Local Settings 49f4cc2bea40cf52315aed5b939de396212e16902e5ea23ff699c372d609cbb2.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
49f4cc2bea40cf52315aed5b939de396212e16902e5ea23ff699c372d609cbb2.exeWScript.execmd.exedescription pid Process procid_target PID 884 wrote to memory of 2496 884 49f4cc2bea40cf52315aed5b939de396212e16902e5ea23ff699c372d609cbb2.exe 84 PID 884 wrote to memory of 2496 884 49f4cc2bea40cf52315aed5b939de396212e16902e5ea23ff699c372d609cbb2.exe 84 PID 884 wrote to memory of 2496 884 49f4cc2bea40cf52315aed5b939de396212e16902e5ea23ff699c372d609cbb2.exe 84 PID 2496 wrote to memory of 436 2496 WScript.exe 87 PID 2496 wrote to memory of 436 2496 WScript.exe 87 PID 2496 wrote to memory of 436 2496 WScript.exe 87 PID 436 wrote to memory of 3412 436 cmd.exe 89 PID 436 wrote to memory of 3412 436 cmd.exe 89 PID 436 wrote to memory of 3412 436 cmd.exe 89
Processes
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C:\Users\Admin\AppData\Local\Temp\49f4cc2bea40cf52315aed5b939de396212e16902e5ea23ff699c372d609cbb2.exe"C:\Users\Admin\AppData\Local\Temp\49f4cc2bea40cf52315aed5b939de396212e16902e5ea23ff699c372d609cbb2.exe"1⤵
- Adds policy Run key to start application
- Checks computer location settings
- Adds Run key to start application
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:884 -
C:\Windows\SysWOW64\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"2⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2496 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c "C:\ProgramData\microsoftEdge\Edgeupdater.exe"3⤵
- Suspicious use of WriteProcessMemory
PID:436 -
C:\ProgramData\microsoftEdge\Edgeupdater.exeC:\ProgramData\microsoftEdge\Edgeupdater.exe4⤵
- Adds policy Run key to start application
- Executes dropped EXE
- Adds Run key to start application
PID:3412
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
469KB
MD595939f7e0943f1428467c77c293e6036
SHA1892d0c06a2c9377b716e3e456c15fa0a5c2d070a
SHA25649f4cc2bea40cf52315aed5b939de396212e16902e5ea23ff699c372d609cbb2
SHA512ad55cf00384915a788343eff3b54811050e3964f4c6598515465dce462bce71116fe52d03057ecf202fa08ef405df70c1bf07dfe65ccf37f3e58f16bf6e64f56
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Filesize
410B
MD519f4614bb43cdf3e42d786d19a92f4ac
SHA1bd3fa3595e247387810e31b3d3fd4a08b54dacc7
SHA2561e9cb576fd6e7af381e5e24429a8a514d36aff8ed0f6f579c609cc646cbddcea
SHA512aa9611fa7d87c2237abeb9d23dd03da4250ba4192bdc276f4c6f3c8747ee8cb6768b160e843012d8c550e8c1744cbfb4746b1d928c66495aa08740f55092bcf4