Analysis
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max time kernel
150s -
max time network
147s -
platform
windows7_x64 -
resource
win7-20230220-en -
resource tags
arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system -
submitted
29-03-2023 01:38
Behavioral task
behavioral1
Sample
61f3f6b2e8186bc072917f390fa663019bad82797749a3eff085eaef1aee75f2.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
61f3f6b2e8186bc072917f390fa663019bad82797749a3eff085eaef1aee75f2.exe
Resource
win10v2004-20230221-en
General
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Target
61f3f6b2e8186bc072917f390fa663019bad82797749a3eff085eaef1aee75f2.exe
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Size
297KB
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MD5
b7dc88755d70e1ecae9672d6278a52bb
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SHA1
5817f32e876d0f70961246eb8564d00f99595354
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SHA256
61f3f6b2e8186bc072917f390fa663019bad82797749a3eff085eaef1aee75f2
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SHA512
83ddb598e5da201eeb6e228a33da5ce9cf4f48731a8ad0703991f015e78cbb27d7156d46fa30f86e7773d5d5699b7cf4e982d404e05dece805002f055b4803ed
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SSDEEP
6144:8Yofp+2vNzef9qHdykAYlqG2l3Bm7G+9HRoIVC:foLQ/GmxYRRVC
Malware Config
Extracted
njrat
im523
HacKed
45.141.27.207:2004
3d9ff66b04f28402875708747612b463
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reg_key
3d9ff66b04f28402875708747612b463
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splitter
|'|'|
Signatures
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Modifies Windows Firewall 1 TTPs 1 IoCs
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Drops startup file 2 IoCs
Processes:
server.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\3d9ff66b04f28402875708747612b463.exe server.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\3d9ff66b04f28402875708747612b463.exe server.exe -
Executes dropped EXE 1 IoCs
Processes:
server.exepid process 2012 server.exe -
Loads dropped DLL 1 IoCs
Processes:
61f3f6b2e8186bc072917f390fa663019bad82797749a3eff085eaef1aee75f2.exepid process 2040 61f3f6b2e8186bc072917f390fa663019bad82797749a3eff085eaef1aee75f2.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
server.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Windows\CurrentVersion\Run\3d9ff66b04f28402875708747612b463 = "\"C:\\Users\\Admin\\AppData\\Roaming\\server.exe\" .." server.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\3d9ff66b04f28402875708747612b463 = "\"C:\\Users\\Admin\\AppData\\Roaming\\server.exe\" .." server.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
server.exepid process 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe 2012 server.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
server.exepid process 2012 server.exe -
Suspicious use of AdjustPrivilegeToken 21 IoCs
Processes:
server.exedescription pid process Token: SeDebugPrivilege 2012 server.exe Token: 33 2012 server.exe Token: SeIncBasePriorityPrivilege 2012 server.exe Token: 33 2012 server.exe Token: SeIncBasePriorityPrivilege 2012 server.exe Token: 33 2012 server.exe Token: SeIncBasePriorityPrivilege 2012 server.exe Token: 33 2012 server.exe Token: SeIncBasePriorityPrivilege 2012 server.exe Token: 33 2012 server.exe Token: SeIncBasePriorityPrivilege 2012 server.exe Token: 33 2012 server.exe Token: SeIncBasePriorityPrivilege 2012 server.exe Token: 33 2012 server.exe Token: SeIncBasePriorityPrivilege 2012 server.exe Token: 33 2012 server.exe Token: SeIncBasePriorityPrivilege 2012 server.exe Token: 33 2012 server.exe Token: SeIncBasePriorityPrivilege 2012 server.exe Token: 33 2012 server.exe Token: SeIncBasePriorityPrivilege 2012 server.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
61f3f6b2e8186bc072917f390fa663019bad82797749a3eff085eaef1aee75f2.exeserver.exedescription pid process target process PID 2040 wrote to memory of 2012 2040 61f3f6b2e8186bc072917f390fa663019bad82797749a3eff085eaef1aee75f2.exe server.exe PID 2040 wrote to memory of 2012 2040 61f3f6b2e8186bc072917f390fa663019bad82797749a3eff085eaef1aee75f2.exe server.exe PID 2040 wrote to memory of 2012 2040 61f3f6b2e8186bc072917f390fa663019bad82797749a3eff085eaef1aee75f2.exe server.exe PID 2040 wrote to memory of 2012 2040 61f3f6b2e8186bc072917f390fa663019bad82797749a3eff085eaef1aee75f2.exe server.exe PID 2012 wrote to memory of 808 2012 server.exe netsh.exe PID 2012 wrote to memory of 808 2012 server.exe netsh.exe PID 2012 wrote to memory of 808 2012 server.exe netsh.exe PID 2012 wrote to memory of 808 2012 server.exe netsh.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\61f3f6b2e8186bc072917f390fa663019bad82797749a3eff085eaef1aee75f2.exe"C:\Users\Admin\AppData\Local\Temp\61f3f6b2e8186bc072917f390fa663019bad82797749a3eff085eaef1aee75f2.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\server.exe"C:\Users\Admin\AppData\Roaming\server.exe"2⤵
- Drops startup file
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- 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\server.exe" "server.exe" ENABLE3⤵
- Modifies Windows Firewall
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\3d9ff66b04f28402875708747612b463.exeFilesize
297KB
MD5b7dc88755d70e1ecae9672d6278a52bb
SHA15817f32e876d0f70961246eb8564d00f99595354
SHA25661f3f6b2e8186bc072917f390fa663019bad82797749a3eff085eaef1aee75f2
SHA51283ddb598e5da201eeb6e228a33da5ce9cf4f48731a8ad0703991f015e78cbb27d7156d46fa30f86e7773d5d5699b7cf4e982d404e05dece805002f055b4803ed
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C:\Users\Admin\AppData\Roaming\server.exeFilesize
297KB
MD5b7dc88755d70e1ecae9672d6278a52bb
SHA15817f32e876d0f70961246eb8564d00f99595354
SHA25661f3f6b2e8186bc072917f390fa663019bad82797749a3eff085eaef1aee75f2
SHA51283ddb598e5da201eeb6e228a33da5ce9cf4f48731a8ad0703991f015e78cbb27d7156d46fa30f86e7773d5d5699b7cf4e982d404e05dece805002f055b4803ed
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C:\Users\Admin\AppData\Roaming\server.exeFilesize
297KB
MD5b7dc88755d70e1ecae9672d6278a52bb
SHA15817f32e876d0f70961246eb8564d00f99595354
SHA25661f3f6b2e8186bc072917f390fa663019bad82797749a3eff085eaef1aee75f2
SHA51283ddb598e5da201eeb6e228a33da5ce9cf4f48731a8ad0703991f015e78cbb27d7156d46fa30f86e7773d5d5699b7cf4e982d404e05dece805002f055b4803ed
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\Users\Admin\AppData\Roaming\server.exeFilesize
297KB
MD5b7dc88755d70e1ecae9672d6278a52bb
SHA15817f32e876d0f70961246eb8564d00f99595354
SHA25661f3f6b2e8186bc072917f390fa663019bad82797749a3eff085eaef1aee75f2
SHA51283ddb598e5da201eeb6e228a33da5ce9cf4f48731a8ad0703991f015e78cbb27d7156d46fa30f86e7773d5d5699b7cf4e982d404e05dece805002f055b4803ed
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memory/2012-62-0x0000000000240000-0x0000000000280000-memory.dmpFilesize
256KB
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memory/2012-64-0x0000000000240000-0x0000000000280000-memory.dmpFilesize
256KB
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memory/2040-54-0x0000000002520000-0x0000000002560000-memory.dmpFilesize
256KB