Analysis
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max time kernel
188s -
max time network
191s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-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 1396 windows.exe -
Modifies Windows Firewall 1 TTPs 1 IoCs
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
332fcdb473326bef8e0b5ee521dad16102b00e370d8398b418a1e95985b61cc6.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation 332fcdb473326bef8e0b5ee521dad16102b00e370d8398b418a1e95985b61cc6.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
windows.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\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 31 IoCs
Processes:
windows.exedescription pid process Token: SeDebugPrivilege 1396 windows.exe Token: 33 1396 windows.exe Token: SeIncBasePriorityPrivilege 1396 windows.exe Token: 33 1396 windows.exe Token: SeIncBasePriorityPrivilege 1396 windows.exe Token: 33 1396 windows.exe Token: SeIncBasePriorityPrivilege 1396 windows.exe Token: 33 1396 windows.exe Token: SeIncBasePriorityPrivilege 1396 windows.exe Token: 33 1396 windows.exe Token: SeIncBasePriorityPrivilege 1396 windows.exe Token: 33 1396 windows.exe Token: SeIncBasePriorityPrivilege 1396 windows.exe Token: 33 1396 windows.exe Token: SeIncBasePriorityPrivilege 1396 windows.exe Token: 33 1396 windows.exe Token: SeIncBasePriorityPrivilege 1396 windows.exe Token: 33 1396 windows.exe Token: SeIncBasePriorityPrivilege 1396 windows.exe Token: 33 1396 windows.exe Token: SeIncBasePriorityPrivilege 1396 windows.exe Token: 33 1396 windows.exe Token: SeIncBasePriorityPrivilege 1396 windows.exe Token: 33 1396 windows.exe Token: SeIncBasePriorityPrivilege 1396 windows.exe Token: 33 1396 windows.exe Token: SeIncBasePriorityPrivilege 1396 windows.exe Token: 33 1396 windows.exe Token: SeIncBasePriorityPrivilege 1396 windows.exe Token: 33 1396 windows.exe Token: SeIncBasePriorityPrivilege 1396 windows.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
332fcdb473326bef8e0b5ee521dad16102b00e370d8398b418a1e95985b61cc6.exewindows.exedescription pid process target process PID 2220 wrote to memory of 1396 2220 332fcdb473326bef8e0b5ee521dad16102b00e370d8398b418a1e95985b61cc6.exe windows.exe PID 2220 wrote to memory of 1396 2220 332fcdb473326bef8e0b5ee521dad16102b00e370d8398b418a1e95985b61cc6.exe windows.exe PID 2220 wrote to memory of 1396 2220 332fcdb473326bef8e0b5ee521dad16102b00e370d8398b418a1e95985b61cc6.exe windows.exe PID 1396 wrote to memory of 3184 1396 windows.exe netsh.exe PID 1396 wrote to memory of 3184 1396 windows.exe netsh.exe PID 1396 wrote to memory of 3184 1396 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⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2220 -
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
PID:1396 -
C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\windows.exe" "windows.exe" ENABLE3⤵
- Modifies Windows Firewall
PID:3184
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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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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memory/1396-134-0x0000000000000000-mapping.dmp
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memory/1396-138-0x00000000751C0000-0x0000000075771000-memory.dmpFilesize
5.7MB
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memory/1396-140-0x00000000751C0000-0x0000000075771000-memory.dmpFilesize
5.7MB
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memory/2220-132-0x00000000751C0000-0x0000000075771000-memory.dmpFilesize
5.7MB
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memory/2220-133-0x00000000751C0000-0x0000000075771000-memory.dmpFilesize
5.7MB
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memory/2220-137-0x00000000751C0000-0x0000000075771000-memory.dmpFilesize
5.7MB
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memory/3184-139-0x0000000000000000-mapping.dmp