Analysis Overview
SHA256
fb5035e26f908cf1de308fdac8db6fb751ac69357b9ab2445fdaf1765c86b366
Threat Level: Known bad
The file ser.exe was found to be: Known bad.
Malicious Activity Summary
StormKitty payload
AsyncRat
StormKitty
Async RAT payload
Reads user/profile data of web browsers
Looks up external IP address via web service
Drops desktop.ini file(s)
Looks up geolocation information via web service
Unsigned PE
Suspicious use of WriteProcessMemory
Checks processor information in registry
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK Matrix V13
Analysis: static1
Detonation Overview
Reported
2024-04-30 12:16
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-30 12:16
Reported
2024-04-30 12:19
Platform
win10v2004-20240419-en
Max time kernel
145s
Max time network
49s
Command Line
Signatures
AsyncRat
StormKitty
StormKitty payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Async RAT payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Reads user/profile data of web browsers
Drops desktop.ini file(s)
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Local\3e9692157c7cce905c4243269c8b7ddd\Admin@EXNCLZLI_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini | C:\Users\Admin\AppData\Local\Temp\ser.exe | N/A |
| File created | C:\Users\Admin\AppData\Local\3e9692157c7cce905c4243269c8b7ddd\Admin@EXNCLZLI_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini | C:\Users\Admin\AppData\Local\Temp\ser.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Local\3e9692157c7cce905c4243269c8b7ddd\Admin@EXNCLZLI_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini | C:\Users\Admin\AppData\Local\Temp\ser.exe | N/A |
| File created | C:\Users\Admin\AppData\Local\3e9692157c7cce905c4243269c8b7ddd\Admin@EXNCLZLI_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini | C:\Users\Admin\AppData\Local\Temp\ser.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Local\3e9692157c7cce905c4243269c8b7ddd\Admin@EXNCLZLI_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini | C:\Users\Admin\AppData\Local\Temp\ser.exe | N/A |
| File created | C:\Users\Admin\AppData\Local\3e9692157c7cce905c4243269c8b7ddd\Admin@EXNCLZLI_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini | C:\Users\Admin\AppData\Local\Temp\ser.exe | N/A |
| File created | C:\Users\Admin\AppData\Local\3e9692157c7cce905c4243269c8b7ddd\Admin@EXNCLZLI_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Camera Roll\desktop.ini | C:\Users\Admin\AppData\Local\Temp\ser.exe | N/A |
| File created | C:\Users\Admin\AppData\Local\3e9692157c7cce905c4243269c8b7ddd\Admin@EXNCLZLI_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Saved Pictures\desktop.ini | C:\Users\Admin\AppData\Local\Temp\ser.exe | N/A |
Looks up external IP address via web service
| Description | Indicator | Process | Target |
| N/A | icanhazip.com | N/A | N/A |
Looks up geolocation information via web service
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0 | C:\Users\Admin\AppData\Local\Temp\ser.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier | C:\Users\Admin\AppData\Local\Temp\ser.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\ser.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\ser.exe
"C:\Users\Admin\AppData\Local\Temp\ser.exe"
C:\Windows\SYSTEM32\notepad.exe
notepad.exe
C:\Windows\SYSTEM32\cmd.exe
"cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
C:\Windows\system32\chcp.com
chcp 65001
C:\Windows\system32\netsh.exe
netsh wlan show profile
C:\Windows\system32\findstr.exe
findstr All
C:\Windows\SYSTEM32\cmd.exe
"cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid
C:\Windows\system32\chcp.com
chcp 65001
C:\Windows\system32\netsh.exe
netsh wlan show networks mode=bssid
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | icanhazip.com | udp |
| US | 8.8.8.8:53 | api.mylnikov.org | udp |
| N/A | 127.0.0.1:7707 | tcp | |
| N/A | 127.0.0.1:6606 | tcp | |
| N/A | 127.0.0.1:8808 | tcp | |
| N/A | 127.0.0.1:6606 | tcp | |
| N/A | 127.0.0.1:6606 | tcp | |
| N/A | 127.0.0.1:6606 | tcp | |
| N/A | 127.0.0.1:8808 | tcp | |
| N/A | 127.0.0.1:6606 | tcp | |
| N/A | 127.0.0.1:8808 | tcp | |
| N/A | 127.0.0.1:7707 | tcp | |
| N/A | 127.0.0.1:6606 | tcp | |
| N/A | 127.0.0.1:7707 | tcp | |
| N/A | 127.0.0.1:8808 | tcp | |
| N/A | 127.0.0.1:6606 | tcp | |
| N/A | 127.0.0.1:6606 | tcp | |
| N/A | 127.0.0.1:7707 | tcp | |
| N/A | 127.0.0.1:6606 | tcp | |
| N/A | 127.0.0.1:6606 | tcp |
Files
memory/208-2-0x0000021623860000-0x0000021623896000-memory.dmp
memory/208-0-0x00007FFF9BE90000-0x00007FFF9C085000-memory.dmp
memory/208-3-0x00000216239D0000-0x0000021623A02000-memory.dmp
memory/208-4-0x00007FFF7DB90000-0x00007FFF7E651000-memory.dmp
memory/208-7-0x0000021623DB0000-0x0000021623DC0000-memory.dmp
memory/208-6-0x0000021623DB0000-0x0000021623DC0000-memory.dmp
memory/208-5-0x0000021623DB0000-0x0000021623DC0000-memory.dmp
C:\Users\Admin\AppData\Local\3e9692157c7cce905c4243269c8b7ddd\Admin@EXNCLZLI_en-US\System\Process.txt
| MD5 | 9e9f1194c20ca288fffee5e28d48902b |
| SHA1 | 3d53528b3dc023d63820797dc803ba3b9914e6ac |
| SHA256 | c89f050b5bb27e5f15874659ad7b2705bd15eab1c4d316adfae3a22ece2b8610 |
| SHA512 | 5bd43a0fd9ab855baf3de5433ce6b2eae83516f463bae31d6b28129147839bc930fb35891dd78d5bd2d3a4e6501faf3d4385102d494246378724571d93448a59 |
C:\Users\Admin\AppData\Local\3e9692157c7cce905c4243269c8b7ddd\Admin@EXNCLZLI_en-US\System\Process.txt
| MD5 | edac7bea578b356f092268bd03b90224 |
| SHA1 | dee052f636b40bbb18079b98726d703a1dc977d7 |
| SHA256 | d939c604f6a140aa84d69bf36749d5cc80abc99d03b5e8b716204b808d53e9b0 |
| SHA512 | e93a2c465458c6fbde834894c67f3a20fcd9625b97dc9f48c326025b3fe81cb14cbe6fbf4d27584c29f709eaf8453f9fa37adf263c2d6ef7c9e35584e397518d |
C:\Users\Admin\AppData\Local\3e9692157c7cce905c4243269c8b7ddd\Admin@EXNCLZLI_en-US\System\Process.txt
| MD5 | 267d7ad72bdc3ee36c7276182a3b6d5f |
| SHA1 | 96d4e46b7a82d5a0623e306cf3eb90b6f23c2831 |
| SHA256 | 834fb324fd139bf70a6c50351830f62378ffd0dfa735f29fd191885a1c669b92 |
| SHA512 | 995e022114f3472e5d07d635065c04ee3f174cc93aacbecb962f1c3813514cfc927173beb71b446e71500f593f0044675f70f9e8ada89ca29831a2b340e8ea7d |
memory/208-153-0x0000021623DB0000-0x0000021623DC0000-memory.dmp
memory/208-154-0x0000021623DB0000-0x0000021623DC0000-memory.dmp
memory/208-158-0x0000021623D60000-0x0000021623D6A000-memory.dmp
memory/208-159-0x00007FFF7DB90000-0x00007FFF7E651000-memory.dmp
memory/208-160-0x0000021623DB0000-0x0000021623DC0000-memory.dmp
memory/208-161-0x0000021623DB0000-0x0000021623DC0000-memory.dmp
C:\Users\Admin\AppData\Local\1bb289bb8707dff085ac42f2958db7c9\msgid.dat
| MD5 | cfcd208495d565ef66e7dff9f98764da |
| SHA1 | b6589fc6ab0dc82cf12099d1c2d40ab994e8410c |
| SHA256 | 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9 |
| SHA512 | 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99 |
memory/208-167-0x0000021623DB0000-0x0000021623DC0000-memory.dmp
memory/208-168-0x0000021623DB0000-0x0000021623DC0000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-30 12:16
Reported
2024-04-30 12:19
Platform
win7-20240221-en
Max time kernel
121s
Max time network
122s
Command Line
Signatures
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2904 wrote to memory of 1076 | N/A | C:\Users\Admin\AppData\Local\Temp\ser.exe | C:\Windows\system32\notepad.exe |
| PID 2904 wrote to memory of 1076 | N/A | C:\Users\Admin\AppData\Local\Temp\ser.exe | C:\Windows\system32\notepad.exe |
| PID 2904 wrote to memory of 1076 | N/A | C:\Users\Admin\AppData\Local\Temp\ser.exe | C:\Windows\system32\notepad.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\ser.exe
"C:\Users\Admin\AppData\Local\Temp\ser.exe"
C:\Windows\system32\notepad.exe
notepad.exe