Analysis
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max time kernel
144s -
max time network
131s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
29-05-2024 18:24
Behavioral task
behavioral1
Sample
Server.exe
Resource
win7-20240508-en
General
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Target
Server.exe
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Size
175KB
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MD5
e801aa3cb811d606a50a76786e41b221
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SHA1
e79d850e46a3804972c0510dbccbcbe1b255b60f
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SHA256
a10b01aa48b1c95f730aac0d28ca7c2bc41e822b675fc6a2010fa17f8c00181b
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SHA512
368a3a73d07e5938aeeb3af6b66178289765a95b88633c519fefefbe6e1d229ad246b3ff092444ac94f5623e45a2462b703433e8f01ff60a102c09d6868e6d8c
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SSDEEP
3072:de8p6ewdOIwQx76vK/bvTv0cU+lL/dMlZZUZ0b2gTTwARE+WpCc:B6ewwIwQJ6vKX0c5MlYZ0b28
Malware Config
Extracted
asyncrat
Default
127.0.0.1:6606
127.0.0.1:7707
127.0.0.1:8808
https://api.telegram.org/bot7346820426:AAE3aepHX-AAQvBLMmoXhCoPgsUfSLO3SR4/sendMessage?chat_id=1979310363
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 behavioral2/memory/3904-1-0x0000000000300000-0x0000000000332000-memory.dmp family_stormkitty -
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:
Server.exedescription ioc process File created C:\Users\Admin\AppData\Local\4d47f4a59038745bad834b269611d67e\Admin@OBJIYUIE_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini Server.exe File opened for modification C:\Users\Admin\AppData\Local\4d47f4a59038745bad834b269611d67e\Admin@OBJIYUIE_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini Server.exe File created C:\Users\Admin\AppData\Local\4d47f4a59038745bad834b269611d67e\Admin@OBJIYUIE_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini Server.exe File opened for modification C:\Users\Admin\AppData\Local\4d47f4a59038745bad834b269611d67e\Admin@OBJIYUIE_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini Server.exe File created C:\Users\Admin\AppData\Local\4d47f4a59038745bad834b269611d67e\Admin@OBJIYUIE_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini Server.exe File created C:\Users\Admin\AppData\Local\4d47f4a59038745bad834b269611d67e\Admin@OBJIYUIE_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini Server.exe File created C:\Users\Admin\AppData\Local\4d47f4a59038745bad834b269611d67e\Admin@OBJIYUIE_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Camera Roll\desktop.ini Server.exe File created C:\Users\Admin\AppData\Local\4d47f4a59038745bad834b269611d67e\Admin@OBJIYUIE_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Saved Pictures\desktop.ini Server.exe -
Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
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Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 27 icanhazip.com -
Looks up geolocation information via web service
Uses a legitimate geolocation service to find the infected system's geolocation info.
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Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
Processes:
taskmgr.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000 taskmgr.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\Properties\{b725f130-47ef-101a-a5f1-02608c9eebac}\000A taskmgr.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\FriendlyName taskmgr.exe -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
Server.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0 Server.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier Server.exe -
Modifies registry class 1 IoCs
Processes:
taskmgr.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000_Classes\Local Settings taskmgr.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
Server.exetaskmgr.exepid process 3904 Server.exe 3904 Server.exe 3904 Server.exe 3904 Server.exe 3904 Server.exe 3904 Server.exe 3904 Server.exe 3904 Server.exe 3904 Server.exe 3904 Server.exe 3904 Server.exe 3904 Server.exe 3904 Server.exe 3904 Server.exe 3904 Server.exe 3904 Server.exe 3904 Server.exe 3904 Server.exe 3904 Server.exe 3904 Server.exe 3904 Server.exe 3904 Server.exe 3904 Server.exe 3904 Server.exe 3904 Server.exe 3904 Server.exe 3904 Server.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
taskmgr.exepid process 4908 taskmgr.exe -
Suspicious use of AdjustPrivilegeToken 6 IoCs
Processes:
Server.exetaskmgr.exedescription pid process Token: SeDebugPrivilege 3904 Server.exe Token: SeDebugPrivilege 4908 taskmgr.exe Token: SeSystemProfilePrivilege 4908 taskmgr.exe Token: SeCreateGlobalPrivilege 4908 taskmgr.exe Token: 33 4908 taskmgr.exe Token: SeIncBasePriorityPrivilege 4908 taskmgr.exe -
Suspicious use of FindShellTrayWindow 55 IoCs
Processes:
taskmgr.exepid process 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe -
Suspicious use of SendNotifyMessage 55 IoCs
Processes:
taskmgr.exepid process 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe 4908 taskmgr.exe -
Suspicious use of WriteProcessMemory 21 IoCs
Processes:
Server.execmd.execmd.exedescription pid process target process PID 3904 wrote to memory of 964 3904 Server.exe cmd.exe PID 3904 wrote to memory of 964 3904 Server.exe cmd.exe PID 3904 wrote to memory of 964 3904 Server.exe cmd.exe PID 964 wrote to memory of 2024 964 cmd.exe chcp.com PID 964 wrote to memory of 2024 964 cmd.exe chcp.com PID 964 wrote to memory of 2024 964 cmd.exe chcp.com PID 964 wrote to memory of 4224 964 cmd.exe netsh.exe PID 964 wrote to memory of 4224 964 cmd.exe netsh.exe PID 964 wrote to memory of 4224 964 cmd.exe netsh.exe PID 964 wrote to memory of 1040 964 cmd.exe findstr.exe PID 964 wrote to memory of 1040 964 cmd.exe findstr.exe PID 964 wrote to memory of 1040 964 cmd.exe findstr.exe PID 3904 wrote to memory of 1960 3904 Server.exe cmd.exe PID 3904 wrote to memory of 1960 3904 Server.exe cmd.exe PID 3904 wrote to memory of 1960 3904 Server.exe cmd.exe PID 1960 wrote to memory of 948 1960 cmd.exe chcp.com PID 1960 wrote to memory of 948 1960 cmd.exe chcp.com PID 1960 wrote to memory of 948 1960 cmd.exe chcp.com PID 1960 wrote to memory of 1424 1960 cmd.exe netsh.exe PID 1960 wrote to memory of 1424 1960 cmd.exe netsh.exe PID 1960 wrote to memory of 1424 1960 cmd.exe netsh.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Server.exe"C:\Users\Admin\AppData\Local\Temp\Server.exe"1⤵
- Drops desktop.ini file(s)
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3904 -
C:\Windows\SysWOW64\cmd.exe"cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All2⤵
- Suspicious use of WriteProcessMemory
PID:964 -
C:\Windows\SysWOW64\chcp.comchcp 650013⤵PID:2024
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C:\Windows\SysWOW64\netsh.exenetsh wlan show profile3⤵PID:4224
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C:\Windows\SysWOW64\findstr.exefindstr All3⤵PID:1040
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C:\Windows\SysWOW64\cmd.exe"cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid2⤵
- Suspicious use of WriteProcessMemory
PID:1960 -
C:\Windows\SysWOW64\chcp.comchcp 650013⤵PID:948
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C:\Windows\SysWOW64\netsh.exenetsh wlan show networks mode=bssid3⤵PID:1424
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C:\Windows\system32\taskmgr.exe"C:\Windows\system32\taskmgr.exe" /41⤵
- Checks SCSI registry key(s)
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:4908
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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:3472
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\4d47f4a59038745bad834b269611d67e\Admin@OBJIYUIE_en-US\Browsers\Firefox\Bookmarks.txt
Filesize105B
MD52e9d094dda5cdc3ce6519f75943a4ff4
SHA15d989b4ac8b699781681fe75ed9ef98191a5096c
SHA256c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142
SHA512d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7
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C:\Users\Admin\AppData\Local\4d47f4a59038745bad834b269611d67e\Admin@OBJIYUIE_en-US\System\Process.txt
Filesize4KB
MD536529b20427248a2b64aea1087ff9c16
SHA13dcddb4028a870aa1faf661d023f54ae763b3069
SHA2560ecfb7ba1084f1e60ba40e71402895c2f60d8ad0e804a61c910ae2d8377ceeae
SHA512cecd669ac6d725bba2470de7f8ae636527c4f10e20334b348759acdd9f9f1d7cc0d8377dccbb7fd8b38910668f0d72a696702157ba0444f9390b7233df64af40
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Filesize
1B
MD5cfcd208495d565ef66e7dff9f98764da
SHA1b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA2565feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
SHA51231bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99