Analysis
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max time kernel
145s -
max time network
49s -
platform
windows10-2004_x64 -
resource
win10v2004-20240419-en -
resource tags
arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system -
submitted
30-04-2024 12:16
Static task
static1
Behavioral task
behavioral1
Sample
ser.exe
Resource
win7-20240221-en
General
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Target
ser.exe
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Size
477KB
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MD5
3fecaea34d8bfd0c53d453ba377f5515
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SHA1
a8909056a93d5c01d5b4f7079603559ef33ee199
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SHA256
fb5035e26f908cf1de308fdac8db6fb751ac69357b9ab2445fdaf1765c86b366
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SHA512
e92f474d4a7a6afa20ce5995cabe14c3442cf9a868269e528fb041dff712eeaa6eda56806126bd3efbb9d1f0719f18b50610bec2eae869d70e8186736f1aeeaf
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SSDEEP
6144:1fkZ3FM+Z6Q/8CqyRr/b0AxouMu3JQ04+S6JutalHVDvG1FhNoX9w:1fkZVfD/LUAoutIUJPHxv2rNY
Malware Config
Extracted
asyncrat
Default
127.0.0.1:6606
127.0.0.1:7707
127.0.0.1:8808
https://api.telegram.org/bot6792184664:AAGxPEwztsvs2oQ0e1vEY9lLZzPUDNJZYS8/sendMessage?chat_id=5918227737
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/208-3-0x00000216239D0000-0x0000021623A02000-memory.dmp family_stormkitty -
Async RAT payload 1 IoCs
Processes:
resource yara_rule behavioral2/memory/208-3-0x00000216239D0000-0x0000021623A02000-memory.dmp family_asyncrat -
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:
ser.exedescription ioc process File created C:\Users\Admin\AppData\Local\3e9692157c7cce905c4243269c8b7ddd\Admin@EXNCLZLI_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini ser.exe File created C:\Users\Admin\AppData\Local\3e9692157c7cce905c4243269c8b7ddd\Admin@EXNCLZLI_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini ser.exe File opened for modification C:\Users\Admin\AppData\Local\3e9692157c7cce905c4243269c8b7ddd\Admin@EXNCLZLI_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini ser.exe File created C:\Users\Admin\AppData\Local\3e9692157c7cce905c4243269c8b7ddd\Admin@EXNCLZLI_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini ser.exe File opened for modification C:\Users\Admin\AppData\Local\3e9692157c7cce905c4243269c8b7ddd\Admin@EXNCLZLI_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini ser.exe File created C:\Users\Admin\AppData\Local\3e9692157c7cce905c4243269c8b7ddd\Admin@EXNCLZLI_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini ser.exe File created C:\Users\Admin\AppData\Local\3e9692157c7cce905c4243269c8b7ddd\Admin@EXNCLZLI_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Camera Roll\desktop.ini ser.exe File created C:\Users\Admin\AppData\Local\3e9692157c7cce905c4243269c8b7ddd\Admin@EXNCLZLI_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Saved Pictures\desktop.ini ser.exe -
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 6 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 processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
ser.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0 ser.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier ser.exe -
Suspicious behavior: EnumeratesProcesses 23 IoCs
Processes:
ser.exepid process 208 ser.exe 208 ser.exe 208 ser.exe 208 ser.exe 208 ser.exe 208 ser.exe 208 ser.exe 208 ser.exe 208 ser.exe 208 ser.exe 208 ser.exe 208 ser.exe 208 ser.exe 208 ser.exe 208 ser.exe 208 ser.exe 208 ser.exe 208 ser.exe 208 ser.exe 208 ser.exe 208 ser.exe 208 ser.exe 208 ser.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
ser.exedescription pid process Token: SeDebugPrivilege 208 ser.exe -
Suspicious use of WriteProcessMemory 16 IoCs
Processes:
ser.execmd.execmd.exedescription pid process target process PID 208 wrote to memory of 4596 208 ser.exe notepad.exe PID 208 wrote to memory of 4596 208 ser.exe notepad.exe PID 208 wrote to memory of 716 208 ser.exe cmd.exe PID 208 wrote to memory of 716 208 ser.exe cmd.exe PID 716 wrote to memory of 4920 716 cmd.exe chcp.com PID 716 wrote to memory of 4920 716 cmd.exe chcp.com PID 716 wrote to memory of 1724 716 cmd.exe netsh.exe PID 716 wrote to memory of 1724 716 cmd.exe netsh.exe PID 716 wrote to memory of 1552 716 cmd.exe findstr.exe PID 716 wrote to memory of 1552 716 cmd.exe findstr.exe PID 208 wrote to memory of 4260 208 ser.exe cmd.exe PID 208 wrote to memory of 4260 208 ser.exe cmd.exe PID 4260 wrote to memory of 1976 4260 cmd.exe chcp.com PID 4260 wrote to memory of 1976 4260 cmd.exe chcp.com PID 4260 wrote to memory of 4692 4260 cmd.exe netsh.exe PID 4260 wrote to memory of 4692 4260 cmd.exe netsh.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\ser.exe"C:\Users\Admin\AppData\Local\Temp\ser.exe"1⤵
- Drops desktop.ini file(s)
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SYSTEM32\notepad.exenotepad.exe2⤵
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C:\Windows\SYSTEM32\cmd.exe"cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\chcp.comchcp 650013⤵
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C:\Windows\system32\netsh.exenetsh wlan show profile3⤵
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C:\Windows\system32\findstr.exefindstr All3⤵
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C:\Windows\SYSTEM32\cmd.exe"cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\chcp.comchcp 650013⤵
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C:\Windows\system32\netsh.exenetsh wlan show networks mode=bssid3⤵
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\1bb289bb8707dff085ac42f2958db7c9\msgid.datFilesize
1B
MD5cfcd208495d565ef66e7dff9f98764da
SHA1b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA2565feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
SHA51231bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99
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C:\Users\Admin\AppData\Local\3e9692157c7cce905c4243269c8b7ddd\Admin@EXNCLZLI_en-US\System\Process.txtFilesize
2KB
MD5edac7bea578b356f092268bd03b90224
SHA1dee052f636b40bbb18079b98726d703a1dc977d7
SHA256d939c604f6a140aa84d69bf36749d5cc80abc99d03b5e8b716204b808d53e9b0
SHA512e93a2c465458c6fbde834894c67f3a20fcd9625b97dc9f48c326025b3fe81cb14cbe6fbf4d27584c29f709eaf8453f9fa37adf263c2d6ef7c9e35584e397518d
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C:\Users\Admin\AppData\Local\3e9692157c7cce905c4243269c8b7ddd\Admin@EXNCLZLI_en-US\System\Process.txtFilesize
4KB
MD5267d7ad72bdc3ee36c7276182a3b6d5f
SHA196d4e46b7a82d5a0623e306cf3eb90b6f23c2831
SHA256834fb324fd139bf70a6c50351830f62378ffd0dfa735f29fd191885a1c669b92
SHA512995e022114f3472e5d07d635065c04ee3f174cc93aacbecb962f1c3813514cfc927173beb71b446e71500f593f0044675f70f9e8ada89ca29831a2b340e8ea7d
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C:\Users\Admin\AppData\Local\3e9692157c7cce905c4243269c8b7ddd\Admin@EXNCLZLI_en-US\System\Process.txtFilesize
1KB
MD59e9f1194c20ca288fffee5e28d48902b
SHA13d53528b3dc023d63820797dc803ba3b9914e6ac
SHA256c89f050b5bb27e5f15874659ad7b2705bd15eab1c4d316adfae3a22ece2b8610
SHA5125bd43a0fd9ab855baf3de5433ce6b2eae83516f463bae31d6b28129147839bc930fb35891dd78d5bd2d3a4e6501faf3d4385102d494246378724571d93448a59
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memory/208-7-0x0000021623DB0000-0x0000021623DC0000-memory.dmpFilesize
64KB
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memory/208-154-0x0000021623DB0000-0x0000021623DC0000-memory.dmpFilesize
64KB
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memory/208-5-0x0000021623DB0000-0x0000021623DC0000-memory.dmpFilesize
64KB
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memory/208-2-0x0000021623860000-0x0000021623896000-memory.dmpFilesize
216KB
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memory/208-4-0x00007FFF7DB90000-0x00007FFF7E651000-memory.dmpFilesize
10.8MB
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memory/208-3-0x00000216239D0000-0x0000021623A02000-memory.dmpFilesize
200KB
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memory/208-153-0x0000021623DB0000-0x0000021623DC0000-memory.dmpFilesize
64KB
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memory/208-6-0x0000021623DB0000-0x0000021623DC0000-memory.dmpFilesize
64KB
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memory/208-158-0x0000021623D60000-0x0000021623D6A000-memory.dmpFilesize
40KB
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memory/208-159-0x00007FFF7DB90000-0x00007FFF7E651000-memory.dmpFilesize
10.8MB
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memory/208-160-0x0000021623DB0000-0x0000021623DC0000-memory.dmpFilesize
64KB
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memory/208-161-0x0000021623DB0000-0x0000021623DC0000-memory.dmpFilesize
64KB
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memory/208-0-0x00007FFF9BE90000-0x00007FFF9C085000-memory.dmpFilesize
2.0MB
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memory/208-167-0x0000021623DB0000-0x0000021623DC0000-memory.dmpFilesize
64KB
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memory/208-168-0x0000021623DB0000-0x0000021623DC0000-memory.dmpFilesize
64KB