Analysis
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max time kernel
42s -
max time network
43s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
31-08-2024 20:16
Static task
static1
Behavioral task
behavioral1
Sample
WinRAR 7.01 Pro.exe
Resource
win10v2004-20240802-en
General
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Target
WinRAR 7.01 Pro.exe
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Size
4.3MB
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MD5
1c8908102946928867ab16f2007b35cc
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SHA1
7e08b98299e0195a013e53221e3c2efb149eb4ce
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SHA256
e3635b82438e536636955e2fee251073b1038a7e00295a1e0efb003ad49965d5
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SHA512
a559caedc7b00da23cb18607d0f2f05c6954a949dff0c8a4c25f6353163b70fd16722728878bb87c9db5cff86dc0252f967ebc26a66cb975af85f1361372a734
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SSDEEP
98304:DaxGFtNdBfKEgzVQYAO52weo3VudIlHSTNWA0rkjEaxKd:DRdytzAO52wLVu2oBWv7t
Malware Config
Extracted
asyncrat
Default
127.0.0.1:6606
127.0.0.1:7707
127.0.0.1:8808
https://api.telegram.org/bot5912059723:AAEvmpZvnGHJALjBBXk_PBuStnzDRsTe4-M/sendMessage?chat_id=750182271
AsyncMutex_6SI8OkPnk
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delay
3
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install
false
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install_folder
%AppData%
Signatures
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StormKitty
StormKitty is an open source info stealer written in C#.
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StormKitty payload 1 IoCs
Processes:
resource yara_rule behavioral1/memory/640-2278-0x0000000002360000-0x0000000002390000-memory.dmp family_stormkitty -
Async RAT payload 1 IoCs
Processes:
resource yara_rule behavioral1/memory/640-2278-0x0000000002360000-0x0000000002390000-memory.dmp family_asyncrat -
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
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.NET Reactor proctector 35 IoCs
Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.
Processes:
resource yara_rule behavioral1/memory/640-27-0x00000000027E0000-0x00000000028C4000-memory.dmp net_reactor behavioral1/memory/640-29-0x00000000026F0000-0x00000000027D2000-memory.dmp net_reactor behavioral1/memory/640-41-0x00000000026F0000-0x00000000027CC000-memory.dmp net_reactor behavioral1/memory/640-44-0x00000000026F0000-0x00000000027CC000-memory.dmp net_reactor behavioral1/memory/640-77-0x00000000026F0000-0x00000000027CC000-memory.dmp net_reactor behavioral1/memory/640-81-0x00000000026F0000-0x00000000027CC000-memory.dmp net_reactor behavioral1/memory/640-93-0x00000000026F0000-0x00000000027CC000-memory.dmp net_reactor behavioral1/memory/640-91-0x00000000026F0000-0x00000000027CC000-memory.dmp net_reactor behavioral1/memory/640-89-0x00000000026F0000-0x00000000027CC000-memory.dmp net_reactor behavioral1/memory/640-87-0x00000000026F0000-0x00000000027CC000-memory.dmp net_reactor behavioral1/memory/640-85-0x00000000026F0000-0x00000000027CC000-memory.dmp net_reactor behavioral1/memory/640-83-0x00000000026F0000-0x00000000027CC000-memory.dmp net_reactor behavioral1/memory/640-79-0x00000000026F0000-0x00000000027CC000-memory.dmp net_reactor behavioral1/memory/640-73-0x00000000026F0000-0x00000000027CC000-memory.dmp net_reactor behavioral1/memory/640-71-0x00000000026F0000-0x00000000027CC000-memory.dmp net_reactor behavioral1/memory/640-69-0x00000000026F0000-0x00000000027CC000-memory.dmp net_reactor behavioral1/memory/640-67-0x00000000026F0000-0x00000000027CC000-memory.dmp net_reactor behavioral1/memory/640-75-0x00000000026F0000-0x00000000027CC000-memory.dmp net_reactor behavioral1/memory/640-65-0x00000000026F0000-0x00000000027CC000-memory.dmp net_reactor behavioral1/memory/640-63-0x00000000026F0000-0x00000000027CC000-memory.dmp net_reactor behavioral1/memory/640-61-0x00000000026F0000-0x00000000027CC000-memory.dmp net_reactor behavioral1/memory/640-59-0x00000000026F0000-0x00000000027CC000-memory.dmp net_reactor behavioral1/memory/640-55-0x00000000026F0000-0x00000000027CC000-memory.dmp net_reactor behavioral1/memory/640-53-0x00000000026F0000-0x00000000027CC000-memory.dmp net_reactor behavioral1/memory/640-49-0x00000000026F0000-0x00000000027CC000-memory.dmp net_reactor behavioral1/memory/640-47-0x00000000026F0000-0x00000000027CC000-memory.dmp net_reactor behavioral1/memory/640-39-0x00000000026F0000-0x00000000027CC000-memory.dmp net_reactor behavioral1/memory/640-35-0x00000000026F0000-0x00000000027CC000-memory.dmp net_reactor behavioral1/memory/640-57-0x00000000026F0000-0x00000000027CC000-memory.dmp net_reactor behavioral1/memory/640-51-0x00000000026F0000-0x00000000027CC000-memory.dmp net_reactor behavioral1/memory/640-31-0x00000000026F0000-0x00000000027CC000-memory.dmp net_reactor behavioral1/memory/640-46-0x00000000026F0000-0x00000000027CC000-memory.dmp net_reactor behavioral1/memory/640-30-0x00000000026F0000-0x00000000027CC000-memory.dmp net_reactor behavioral1/memory/640-37-0x00000000026F0000-0x00000000027CC000-memory.dmp net_reactor behavioral1/memory/640-33-0x00000000026F0000-0x00000000027CC000-memory.dmp net_reactor -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
WinRAR 7.01 Pro.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation WinRAR 7.01 Pro.exe -
Executes dropped EXE 2 IoCs
Processes:
winrar_x64_701ar.exe_microsoft_corporation.exepid process 3852 winrar_x64_701ar.exe 640 _microsoft_corporation.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Drops desktop.ini file(s) 8 IoCs
Processes:
_microsoft_corporation.exedescription ioc process File created C:\Users\Admin\AppData\Local\9f14789e79876668fdc6516ab714a73e\Admin@KZYBFHMK_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini _microsoft_corporation.exe File opened for modification C:\Users\Admin\AppData\Local\9f14789e79876668fdc6516ab714a73e\Admin@KZYBFHMK_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini _microsoft_corporation.exe File created C:\Users\Admin\AppData\Local\9f14789e79876668fdc6516ab714a73e\Admin@KZYBFHMK_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini _microsoft_corporation.exe File opened for modification C:\Users\Admin\AppData\Local\9f14789e79876668fdc6516ab714a73e\Admin@KZYBFHMK_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini _microsoft_corporation.exe File created C:\Users\Admin\AppData\Local\9f14789e79876668fdc6516ab714a73e\Admin@KZYBFHMK_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini _microsoft_corporation.exe File created C:\Users\Admin\AppData\Local\9f14789e79876668fdc6516ab714a73e\Admin@KZYBFHMK_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini _microsoft_corporation.exe File created C:\Users\Admin\AppData\Local\9f14789e79876668fdc6516ab714a73e\Admin@KZYBFHMK_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Camera Roll\desktop.ini _microsoft_corporation.exe File created C:\Users\Admin\AppData\Local\9f14789e79876668fdc6516ab714a73e\Admin@KZYBFHMK_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Saved Pictures\desktop.ini _microsoft_corporation.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Event Triggered Execution: Netsh Helper DLL 1 TTPs 6 IoCs
Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.
Processes:
netsh.exenetsh.exedescription ioc process Key value enumerated \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key opened \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key queried \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key value enumerated \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key opened \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key queried \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe -
System Location Discovery: System Language Discovery 1 TTPs 9 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
WinRAR 7.01 Pro.exe_microsoft_corporation.execmd.execmd.exechcp.comchcp.comfindstr.exenetsh.exenetsh.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language WinRAR 7.01 Pro.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language _microsoft_corporation.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language chcp.com Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language chcp.com Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language findstr.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language netsh.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language netsh.exe -
System Network Configuration Discovery: Wi-Fi Discovery 1 TTPs 2 IoCs
Adversaries may search for information about Wi-Fi networks, such as network names and passwords, on compromised systems.
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Suspicious behavior: EnumeratesProcesses 26 IoCs
Processes:
_microsoft_corporation.exepid process 640 _microsoft_corporation.exe 640 _microsoft_corporation.exe 640 _microsoft_corporation.exe 640 _microsoft_corporation.exe 640 _microsoft_corporation.exe 640 _microsoft_corporation.exe 640 _microsoft_corporation.exe 640 _microsoft_corporation.exe 640 _microsoft_corporation.exe 640 _microsoft_corporation.exe 640 _microsoft_corporation.exe 640 _microsoft_corporation.exe 640 _microsoft_corporation.exe 640 _microsoft_corporation.exe 640 _microsoft_corporation.exe 640 _microsoft_corporation.exe 640 _microsoft_corporation.exe 640 _microsoft_corporation.exe 640 _microsoft_corporation.exe 640 _microsoft_corporation.exe 640 _microsoft_corporation.exe 640 _microsoft_corporation.exe 640 _microsoft_corporation.exe 640 _microsoft_corporation.exe 640 _microsoft_corporation.exe 640 _microsoft_corporation.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
_microsoft_corporation.exedescription pid process Token: SeDebugPrivilege 640 _microsoft_corporation.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
winrar_x64_701ar.exepid process 3852 winrar_x64_701ar.exe 3852 winrar_x64_701ar.exe -
Suspicious use of WriteProcessMemory 26 IoCs
Processes:
WinRAR 7.01 Pro.exe_microsoft_corporation.execmd.execmd.exedescription pid process target process PID 4724 wrote to memory of 3852 4724 WinRAR 7.01 Pro.exe winrar_x64_701ar.exe PID 4724 wrote to memory of 3852 4724 WinRAR 7.01 Pro.exe winrar_x64_701ar.exe PID 4724 wrote to memory of 640 4724 WinRAR 7.01 Pro.exe _microsoft_corporation.exe PID 4724 wrote to memory of 640 4724 WinRAR 7.01 Pro.exe _microsoft_corporation.exe PID 4724 wrote to memory of 640 4724 WinRAR 7.01 Pro.exe _microsoft_corporation.exe PID 640 wrote to memory of 2768 640 _microsoft_corporation.exe cmd.exe PID 640 wrote to memory of 2768 640 _microsoft_corporation.exe cmd.exe PID 640 wrote to memory of 2768 640 _microsoft_corporation.exe cmd.exe PID 2768 wrote to memory of 4372 2768 cmd.exe chcp.com PID 2768 wrote to memory of 4372 2768 cmd.exe chcp.com PID 2768 wrote to memory of 4372 2768 cmd.exe chcp.com PID 2768 wrote to memory of 3660 2768 cmd.exe netsh.exe PID 2768 wrote to memory of 3660 2768 cmd.exe netsh.exe PID 2768 wrote to memory of 3660 2768 cmd.exe netsh.exe PID 2768 wrote to memory of 4060 2768 cmd.exe findstr.exe PID 2768 wrote to memory of 4060 2768 cmd.exe findstr.exe PID 2768 wrote to memory of 4060 2768 cmd.exe findstr.exe PID 640 wrote to memory of 3920 640 _microsoft_corporation.exe cmd.exe PID 640 wrote to memory of 3920 640 _microsoft_corporation.exe cmd.exe PID 640 wrote to memory of 3920 640 _microsoft_corporation.exe cmd.exe PID 3920 wrote to memory of 3860 3920 cmd.exe chcp.com PID 3920 wrote to memory of 3860 3920 cmd.exe chcp.com PID 3920 wrote to memory of 3860 3920 cmd.exe chcp.com PID 3920 wrote to memory of 1300 3920 cmd.exe netsh.exe PID 3920 wrote to memory of 1300 3920 cmd.exe netsh.exe PID 3920 wrote to memory of 1300 3920 cmd.exe netsh.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\WinRAR 7.01 Pro.exe"C:\Users\Admin\AppData\Local\Temp\WinRAR 7.01 Pro.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4724 -
C:\Users\Admin\AppData\Local\Temp\winrar_x64_701ar.exe"C:\Users\Admin\AppData\Local\Temp\winrar_x64_701ar.exe"2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:3852
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C:\Users\Admin\AppData\Local\Temp\_microsoft_corporation.exe"C:\Users\Admin\AppData\Local\Temp\_microsoft_corporation.exe"2⤵
- Executes dropped EXE
- Drops desktop.ini file(s)
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:640 -
C:\Windows\SysWOW64\cmd.exe"cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All3⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Wi-Fi Discovery
- Suspicious use of WriteProcessMemory
PID:2768 -
C:\Windows\SysWOW64\chcp.comchcp 650014⤵
- System Location Discovery: System Language Discovery
PID:4372
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C:\Windows\SysWOW64\netsh.exenetsh wlan show profile4⤵
- Event Triggered Execution: Netsh Helper DLL
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Wi-Fi Discovery
PID:3660
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C:\Windows\SysWOW64\findstr.exefindstr All4⤵
- System Location Discovery: System Language Discovery
PID:4060
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C:\Windows\SysWOW64\cmd.exe"cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3920 -
C:\Windows\SysWOW64\chcp.comchcp 650014⤵
- System Location Discovery: System Language Discovery
PID:3860
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C:\Windows\SysWOW64\netsh.exenetsh wlan show networks mode=bssid4⤵
- Event Triggered Execution: Netsh Helper DLL
- System Location Discovery: System Language Discovery
PID:1300
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C:\Windows\system32\werfault.exewerfault.exe /h /shared Global\f4a117cd0eea4d6eabe1ad87557dd303 /t 1028 /p 38521⤵PID:4524
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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⤵PID:2408
Network
MITRE ATT&CK Enterprise v15
Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\9f14789e79876668fdc6516ab714a73e\Admin@KZYBFHMK_en-US\Browsers\Firefox\Bookmarks.txt
Filesize105B
MD52e9d094dda5cdc3ce6519f75943a4ff4
SHA15d989b4ac8b699781681fe75ed9ef98191a5096c
SHA256c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142
SHA512d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7
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C:\Users\Admin\AppData\Local\9f14789e79876668fdc6516ab714a73e\Admin@KZYBFHMK_en-US\System\Process.txt
Filesize4KB
MD55af12d507f677247242d24233c78b5f6
SHA167502a609fcda677839a2267bda8df7d0a30a4ac
SHA2563fcce7dc9416252893b80161c18e50d5c9292ce060126d4947c4a514282960b3
SHA512d7343feabe2e4ce97ae8648cdf7a010ff6c05fcf88fee6f60ba7a1d33a88609679ca8f79bd383f24bc85600c496fa52380c6eec90939109d58e519caa118e862
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Filesize
487KB
MD5b2795fbed63c8c1b0846b3eaeae2fe0f
SHA1d1145cff21e008c9ad581ccf1719139d754355de
SHA2565ea467d548d41b747370a235c9a245910ed58d55482a48246196faf391213c24
SHA51247ffcc3c74113db4c389ba9a6b5db7ce325d1f63e431405a9f6613918c387de4a677f20804aad6aa458bf2151de418c2f72740f4f5083fb45bf6c4b0f564e564
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Filesize
3.8MB
MD55e2849bef6a38ed0b163ea6128afea01
SHA1d77e1467dcd5e6662a6b97de35cb017579af032a
SHA2566ec13e13059bac123d839fde5770db2c87248ef862d21f5f818580287a365026
SHA512e20bcb346b114c5e6f8f0e82d2143a7c02ffc77056983336a011fbe8e292d8fa0ed8d2aebaa6f665ffacfa1063f59a2788bc68bbe2605316d7791eec3a1e1cfb