Analysis
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max time kernel
149s -
max time network
46s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
26-06-2022 23:34
Static task
static1
Behavioral task
behavioral1
Sample
35a124707d778d78543bf3bce873defdad0934144368a9c627bfea3583afbd9a.exe
Resource
win7-20220414-en
General
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Target
35a124707d778d78543bf3bce873defdad0934144368a9c627bfea3583afbd9a.exe
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Size
472KB
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MD5
62dd3acc62df21dd48cb8a50222b5603
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SHA1
27f9ca1e1537d58daa899a0ddd44b1f216d80384
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SHA256
35a124707d778d78543bf3bce873defdad0934144368a9c627bfea3583afbd9a
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SHA512
9f3404f25c18af16f65183faf393ce9809db41f19a3705a54abcbc79cd604cd101ec344c3715279ecfd1b3d9890263ff0fc65710644d7aded81070345d06c627
Malware Config
Signatures
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Kutaki Executable 4 IoCs
Processes:
resource yara_rule \Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\xrjxeech.exe family_kutaki C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\xrjxeech.exe family_kutaki \Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\xrjxeech.exe family_kutaki C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\xrjxeech.exe family_kutaki -
Executes dropped EXE 1 IoCs
Processes:
xrjxeech.exepid process 1984 xrjxeech.exe -
Drops startup file 2 IoCs
Processes:
35a124707d778d78543bf3bce873defdad0934144368a9c627bfea3583afbd9a.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\xrjxeech.exe 35a124707d778d78543bf3bce873defdad0934144368a9c627bfea3583afbd9a.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\xrjxeech.exe 35a124707d778d78543bf3bce873defdad0934144368a9c627bfea3583afbd9a.exe -
Loads dropped DLL 2 IoCs
Processes:
35a124707d778d78543bf3bce873defdad0934144368a9c627bfea3583afbd9a.exepid process 1376 35a124707d778d78543bf3bce873defdad0934144368a9c627bfea3583afbd9a.exe 1376 35a124707d778d78543bf3bce873defdad0934144368a9c627bfea3583afbd9a.exe -
Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
Processes:
xrjxeech.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum xrjxeech.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 xrjxeech.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Processes:
35a124707d778d78543bf3bce873defdad0934144368a9c627bfea3583afbd9a.exexrjxeech.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\Main 35a124707d778d78543bf3bce873defdad0934144368a9c627bfea3583afbd9a.exe Key created \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\Main xrjxeech.exe -
Suspicious use of SetWindowsHookEx 6 IoCs
Processes:
35a124707d778d78543bf3bce873defdad0934144368a9c627bfea3583afbd9a.exexrjxeech.exepid process 1376 35a124707d778d78543bf3bce873defdad0934144368a9c627bfea3583afbd9a.exe 1376 35a124707d778d78543bf3bce873defdad0934144368a9c627bfea3583afbd9a.exe 1376 35a124707d778d78543bf3bce873defdad0934144368a9c627bfea3583afbd9a.exe 1984 xrjxeech.exe 1984 xrjxeech.exe 1984 xrjxeech.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
35a124707d778d78543bf3bce873defdad0934144368a9c627bfea3583afbd9a.exedescription pid process target process PID 1376 wrote to memory of 1760 1376 35a124707d778d78543bf3bce873defdad0934144368a9c627bfea3583afbd9a.exe cmd.exe PID 1376 wrote to memory of 1760 1376 35a124707d778d78543bf3bce873defdad0934144368a9c627bfea3583afbd9a.exe cmd.exe PID 1376 wrote to memory of 1760 1376 35a124707d778d78543bf3bce873defdad0934144368a9c627bfea3583afbd9a.exe cmd.exe PID 1376 wrote to memory of 1760 1376 35a124707d778d78543bf3bce873defdad0934144368a9c627bfea3583afbd9a.exe cmd.exe PID 1376 wrote to memory of 1984 1376 35a124707d778d78543bf3bce873defdad0934144368a9c627bfea3583afbd9a.exe xrjxeech.exe PID 1376 wrote to memory of 1984 1376 35a124707d778d78543bf3bce873defdad0934144368a9c627bfea3583afbd9a.exe xrjxeech.exe PID 1376 wrote to memory of 1984 1376 35a124707d778d78543bf3bce873defdad0934144368a9c627bfea3583afbd9a.exe xrjxeech.exe PID 1376 wrote to memory of 1984 1376 35a124707d778d78543bf3bce873defdad0934144368a9c627bfea3583afbd9a.exe xrjxeech.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\35a124707d778d78543bf3bce873defdad0934144368a9c627bfea3583afbd9a.exe"C:\Users\Admin\AppData\Local\Temp\35a124707d778d78543bf3bce873defdad0934144368a9c627bfea3583afbd9a.exe"1⤵
- Drops startup file
- Loads dropped DLL
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1376 -
C:\Windows\SysWOW64\cmd.execmd.exe /c C:\Users\Admin\AppData\Local\Temp\2⤵PID:1760
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\xrjxeech.exe"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\xrjxeech.exe"2⤵
- Executes dropped EXE
- Maps connected drives based on registry
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:1984
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
472KB
MD562dd3acc62df21dd48cb8a50222b5603
SHA127f9ca1e1537d58daa899a0ddd44b1f216d80384
SHA25635a124707d778d78543bf3bce873defdad0934144368a9c627bfea3583afbd9a
SHA5129f3404f25c18af16f65183faf393ce9809db41f19a3705a54abcbc79cd604cd101ec344c3715279ecfd1b3d9890263ff0fc65710644d7aded81070345d06c627
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Filesize
472KB
MD562dd3acc62df21dd48cb8a50222b5603
SHA127f9ca1e1537d58daa899a0ddd44b1f216d80384
SHA25635a124707d778d78543bf3bce873defdad0934144368a9c627bfea3583afbd9a
SHA5129f3404f25c18af16f65183faf393ce9809db41f19a3705a54abcbc79cd604cd101ec344c3715279ecfd1b3d9890263ff0fc65710644d7aded81070345d06c627
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Filesize
472KB
MD562dd3acc62df21dd48cb8a50222b5603
SHA127f9ca1e1537d58daa899a0ddd44b1f216d80384
SHA25635a124707d778d78543bf3bce873defdad0934144368a9c627bfea3583afbd9a
SHA5129f3404f25c18af16f65183faf393ce9809db41f19a3705a54abcbc79cd604cd101ec344c3715279ecfd1b3d9890263ff0fc65710644d7aded81070345d06c627
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Filesize
472KB
MD562dd3acc62df21dd48cb8a50222b5603
SHA127f9ca1e1537d58daa899a0ddd44b1f216d80384
SHA25635a124707d778d78543bf3bce873defdad0934144368a9c627bfea3583afbd9a
SHA5129f3404f25c18af16f65183faf393ce9809db41f19a3705a54abcbc79cd604cd101ec344c3715279ecfd1b3d9890263ff0fc65710644d7aded81070345d06c627