Analysis
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max time kernel
150s -
max time network
151s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
03-12-2022 05:05
Behavioral task
behavioral1
Sample
0264f793019aa3bcfb0eea21eb639a14f41005a6edb5ea619171953a257bb4c5.exe
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
0264f793019aa3bcfb0eea21eb639a14f41005a6edb5ea619171953a257bb4c5.exe
Resource
win10v2004-20221111-en
General
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Target
0264f793019aa3bcfb0eea21eb639a14f41005a6edb5ea619171953a257bb4c5.exe
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Size
23KB
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MD5
c18abb88e4ee9b92b87fcd373b0fe1cf
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SHA1
77277a63e68511719cd59f08f5ad4ad3022a710c
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SHA256
0264f793019aa3bcfb0eea21eb639a14f41005a6edb5ea619171953a257bb4c5
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SHA512
e53bb7691d2ab50bf37ec72c0fd28b3141181e0d1482505942d953e50b271348e95e9d3855e633bec9e7d9bd2da688eed358eadc988802703d050e300e12908e
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SSDEEP
384:bluBPiZCMfdfSJrQbsLRGSIxYVL46pg/i8BD9BmRvR6JZlbw8hqIusZzZ8jo:kOmhtIiRpcnuU
Malware Config
Extracted
njrat
0.7d
CITY STAR
milla.publicvm.com:1177
6cdb08dd3b21764fd94337c600ffa567
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reg_key
6cdb08dd3b21764fd94337c600ffa567
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splitter
|'|'|
Signatures
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Executes dropped EXE 1 IoCs
Processes:
microseft.exepid process 1736 microseft.exe -
Modifies Windows Firewall 1 TTPs 1 IoCs
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Drops startup file 2 IoCs
Processes:
microseft.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\6cdb08dd3b21764fd94337c600ffa567.exe microseft.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\6cdb08dd3b21764fd94337c600ffa567.exe microseft.exe -
Loads dropped DLL 1 IoCs
Processes:
0264f793019aa3bcfb0eea21eb639a14f41005a6edb5ea619171953a257bb4c5.exepid process 1552 0264f793019aa3bcfb0eea21eb639a14f41005a6edb5ea619171953a257bb4c5.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
microseft.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\6cdb08dd3b21764fd94337c600ffa567 = "\"C:\\Users\\Admin\\AppData\\Roaming\\microseft.exe\" .." microseft.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\6cdb08dd3b21764fd94337c600ffa567 = "\"C:\\Users\\Admin\\AppData\\Roaming\\microseft.exe\" .." microseft.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:
microseft.exedescription pid process Token: SeDebugPrivilege 1736 microseft.exe Token: 33 1736 microseft.exe Token: SeIncBasePriorityPrivilege 1736 microseft.exe Token: 33 1736 microseft.exe Token: SeIncBasePriorityPrivilege 1736 microseft.exe Token: 33 1736 microseft.exe Token: SeIncBasePriorityPrivilege 1736 microseft.exe Token: 33 1736 microseft.exe Token: SeIncBasePriorityPrivilege 1736 microseft.exe Token: 33 1736 microseft.exe Token: SeIncBasePriorityPrivilege 1736 microseft.exe Token: 33 1736 microseft.exe Token: SeIncBasePriorityPrivilege 1736 microseft.exe Token: 33 1736 microseft.exe Token: SeIncBasePriorityPrivilege 1736 microseft.exe Token: 33 1736 microseft.exe Token: SeIncBasePriorityPrivilege 1736 microseft.exe Token: 33 1736 microseft.exe Token: SeIncBasePriorityPrivilege 1736 microseft.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
0264f793019aa3bcfb0eea21eb639a14f41005a6edb5ea619171953a257bb4c5.exemicroseft.exedescription pid process target process PID 1552 wrote to memory of 1736 1552 0264f793019aa3bcfb0eea21eb639a14f41005a6edb5ea619171953a257bb4c5.exe microseft.exe PID 1552 wrote to memory of 1736 1552 0264f793019aa3bcfb0eea21eb639a14f41005a6edb5ea619171953a257bb4c5.exe microseft.exe PID 1552 wrote to memory of 1736 1552 0264f793019aa3bcfb0eea21eb639a14f41005a6edb5ea619171953a257bb4c5.exe microseft.exe PID 1552 wrote to memory of 1736 1552 0264f793019aa3bcfb0eea21eb639a14f41005a6edb5ea619171953a257bb4c5.exe microseft.exe PID 1736 wrote to memory of 536 1736 microseft.exe netsh.exe PID 1736 wrote to memory of 536 1736 microseft.exe netsh.exe PID 1736 wrote to memory of 536 1736 microseft.exe netsh.exe PID 1736 wrote to memory of 536 1736 microseft.exe netsh.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\0264f793019aa3bcfb0eea21eb639a14f41005a6edb5ea619171953a257bb4c5.exe"C:\Users\Admin\AppData\Local\Temp\0264f793019aa3bcfb0eea21eb639a14f41005a6edb5ea619171953a257bb4c5.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\microseft.exe"C:\Users\Admin\AppData\Roaming\microseft.exe"2⤵
- Executes dropped EXE
- Drops startup file
- 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\Roaming\microseft.exe" "microseft.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\Roaming\microseft.exeFilesize
23KB
MD5c18abb88e4ee9b92b87fcd373b0fe1cf
SHA177277a63e68511719cd59f08f5ad4ad3022a710c
SHA2560264f793019aa3bcfb0eea21eb639a14f41005a6edb5ea619171953a257bb4c5
SHA512e53bb7691d2ab50bf37ec72c0fd28b3141181e0d1482505942d953e50b271348e95e9d3855e633bec9e7d9bd2da688eed358eadc988802703d050e300e12908e
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C:\Users\Admin\AppData\Roaming\microseft.exeFilesize
23KB
MD5c18abb88e4ee9b92b87fcd373b0fe1cf
SHA177277a63e68511719cd59f08f5ad4ad3022a710c
SHA2560264f793019aa3bcfb0eea21eb639a14f41005a6edb5ea619171953a257bb4c5
SHA512e53bb7691d2ab50bf37ec72c0fd28b3141181e0d1482505942d953e50b271348e95e9d3855e633bec9e7d9bd2da688eed358eadc988802703d050e300e12908e
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\Users\Admin\AppData\Roaming\microseft.exeFilesize
23KB
MD5c18abb88e4ee9b92b87fcd373b0fe1cf
SHA177277a63e68511719cd59f08f5ad4ad3022a710c
SHA2560264f793019aa3bcfb0eea21eb639a14f41005a6edb5ea619171953a257bb4c5
SHA512e53bb7691d2ab50bf37ec72c0fd28b3141181e0d1482505942d953e50b271348e95e9d3855e633bec9e7d9bd2da688eed358eadc988802703d050e300e12908e
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memory/536-63-0x0000000000000000-mapping.dmp
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memory/1552-54-0x0000000075681000-0x0000000075683000-memory.dmpFilesize
8KB
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memory/1552-55-0x0000000074530000-0x0000000074ADB000-memory.dmpFilesize
5.7MB
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memory/1552-61-0x0000000074530000-0x0000000074ADB000-memory.dmpFilesize
5.7MB
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memory/1736-57-0x0000000000000000-mapping.dmp
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memory/1736-62-0x0000000074530000-0x0000000074ADB000-memory.dmpFilesize
5.7MB
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memory/1736-65-0x0000000074530000-0x0000000074ADB000-memory.dmpFilesize
5.7MB