Analysis
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max time kernel
149s -
max time network
49s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
26-11-2022 08:42
Behavioral task
behavioral1
Sample
332fcdb473326bef8e0b5ee521dad16102b00e370d8398b418a1e95985b61cc6.exe
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
332fcdb473326bef8e0b5ee521dad16102b00e370d8398b418a1e95985b61cc6.exe
Resource
win10v2004-20220812-en
General
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Target
332fcdb473326bef8e0b5ee521dad16102b00e370d8398b418a1e95985b61cc6.exe
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Size
23KB
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MD5
8e79b6d1203f62e32b87a58f4768b08c
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SHA1
627c9969d302863371d2ddcfbb1209b36a79e135
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SHA256
332fcdb473326bef8e0b5ee521dad16102b00e370d8398b418a1e95985b61cc6
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SHA512
479877a188731f5120a82c865f0b476fa2ce62012a5544364b305e3106d108ea1ef111e26366113bf2697a892dfe1b45b62b576a42aa7d5e6284f6eb0584c7e3
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SSDEEP
384:zY324bcgPiJLQrfARGSRUJsbY6ZgvSMBD3t8mRvR6JZlbw8hqIusZzZr7:cL2s+tRyRpcnuM
Malware Config
Extracted
njrat
0.7d
Bot
smuktnet.ddns.net:5552
d5bf5ee18952025404f8d39dc09f66a5
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reg_key
d5bf5ee18952025404f8d39dc09f66a5
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splitter
|'|'|
Signatures
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Executes dropped EXE 1 IoCs
Processes:
windows.exepid process 764 windows.exe -
Modifies Windows Firewall 1 TTPs 1 IoCs
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Loads dropped DLL 1 IoCs
Processes:
332fcdb473326bef8e0b5ee521dad16102b00e370d8398b418a1e95985b61cc6.exepid process 1436 332fcdb473326bef8e0b5ee521dad16102b00e370d8398b418a1e95985b61cc6.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
windows.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\d5bf5ee18952025404f8d39dc09f66a5 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\windows.exe\" .." windows.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\d5bf5ee18952025404f8d39dc09f66a5 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\windows.exe\" .." windows.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious use of AdjustPrivilegeToken 19 IoCs
Processes:
windows.exedescription pid process Token: SeDebugPrivilege 764 windows.exe Token: 33 764 windows.exe Token: SeIncBasePriorityPrivilege 764 windows.exe Token: 33 764 windows.exe Token: SeIncBasePriorityPrivilege 764 windows.exe Token: 33 764 windows.exe Token: SeIncBasePriorityPrivilege 764 windows.exe Token: 33 764 windows.exe Token: SeIncBasePriorityPrivilege 764 windows.exe Token: 33 764 windows.exe Token: SeIncBasePriorityPrivilege 764 windows.exe Token: 33 764 windows.exe Token: SeIncBasePriorityPrivilege 764 windows.exe Token: 33 764 windows.exe Token: SeIncBasePriorityPrivilege 764 windows.exe Token: 33 764 windows.exe Token: SeIncBasePriorityPrivilege 764 windows.exe Token: 33 764 windows.exe Token: SeIncBasePriorityPrivilege 764 windows.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
332fcdb473326bef8e0b5ee521dad16102b00e370d8398b418a1e95985b61cc6.exewindows.exedescription pid process target process PID 1436 wrote to memory of 764 1436 332fcdb473326bef8e0b5ee521dad16102b00e370d8398b418a1e95985b61cc6.exe windows.exe PID 1436 wrote to memory of 764 1436 332fcdb473326bef8e0b5ee521dad16102b00e370d8398b418a1e95985b61cc6.exe windows.exe PID 1436 wrote to memory of 764 1436 332fcdb473326bef8e0b5ee521dad16102b00e370d8398b418a1e95985b61cc6.exe windows.exe PID 1436 wrote to memory of 764 1436 332fcdb473326bef8e0b5ee521dad16102b00e370d8398b418a1e95985b61cc6.exe windows.exe PID 764 wrote to memory of 1504 764 windows.exe netsh.exe PID 764 wrote to memory of 1504 764 windows.exe netsh.exe PID 764 wrote to memory of 1504 764 windows.exe netsh.exe PID 764 wrote to memory of 1504 764 windows.exe netsh.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\332fcdb473326bef8e0b5ee521dad16102b00e370d8398b418a1e95985b61cc6.exe"C:\Users\Admin\AppData\Local\Temp\332fcdb473326bef8e0b5ee521dad16102b00e370d8398b418a1e95985b61cc6.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\windows.exe"C:\Users\Admin\AppData\Local\Temp\windows.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\windows.exe" "windows.exe" ENABLE3⤵
- Modifies Windows Firewall
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\windows.exeFilesize
23KB
MD58e79b6d1203f62e32b87a58f4768b08c
SHA1627c9969d302863371d2ddcfbb1209b36a79e135
SHA256332fcdb473326bef8e0b5ee521dad16102b00e370d8398b418a1e95985b61cc6
SHA512479877a188731f5120a82c865f0b476fa2ce62012a5544364b305e3106d108ea1ef111e26366113bf2697a892dfe1b45b62b576a42aa7d5e6284f6eb0584c7e3
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C:\Users\Admin\AppData\Local\Temp\windows.exeFilesize
23KB
MD58e79b6d1203f62e32b87a58f4768b08c
SHA1627c9969d302863371d2ddcfbb1209b36a79e135
SHA256332fcdb473326bef8e0b5ee521dad16102b00e370d8398b418a1e95985b61cc6
SHA512479877a188731f5120a82c865f0b476fa2ce62012a5544364b305e3106d108ea1ef111e26366113bf2697a892dfe1b45b62b576a42aa7d5e6284f6eb0584c7e3
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\Users\Admin\AppData\Local\Temp\windows.exeFilesize
23KB
MD58e79b6d1203f62e32b87a58f4768b08c
SHA1627c9969d302863371d2ddcfbb1209b36a79e135
SHA256332fcdb473326bef8e0b5ee521dad16102b00e370d8398b418a1e95985b61cc6
SHA512479877a188731f5120a82c865f0b476fa2ce62012a5544364b305e3106d108ea1ef111e26366113bf2697a892dfe1b45b62b576a42aa7d5e6284f6eb0584c7e3
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memory/764-57-0x0000000000000000-mapping.dmp
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memory/764-62-0x0000000074C10000-0x00000000751BB000-memory.dmpFilesize
5.7MB
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memory/764-65-0x0000000074C10000-0x00000000751BB000-memory.dmpFilesize
5.7MB
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memory/1436-54-0x0000000075711000-0x0000000075713000-memory.dmpFilesize
8KB
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memory/1436-55-0x0000000074C10000-0x00000000751BB000-memory.dmpFilesize
5.7MB
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memory/1436-61-0x0000000074C10000-0x00000000751BB000-memory.dmpFilesize
5.7MB
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memory/1504-63-0x0000000000000000-mapping.dmp