Analysis
-
max time kernel
150s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
04-12-2024 13:33
Behavioral task
behavioral1
Sample
1.exe
Resource
win7-20240903-en
windows7-x64
12 signatures
150 seconds
Behavioral task
behavioral2
Sample
1.exe
Resource
win10v2004-20241007-en
windows10-2004-x64
12 signatures
150 seconds
General
-
Target
1.exe
-
Size
55KB
-
MD5
884d0260cf894f82c7a49dffa1f1de55
-
SHA1
58a17ad2995b57b43a3da627691340d418034d89
-
SHA256
ec617ae71fd8463ac6651b8289a06de9a8f184ce6c94f1b5ef2a482dbcfeb9e0
-
SHA512
c7a64e7d12809fa017fb44c70f3e92978e3cf629aaa088e960ab92e3cd659a5175a5337fdae5d08b6e8d6b1dec123e987e041a554da89746267e1354b3e0258f
-
SSDEEP
1536:kRksDnHNwZ8Cam8LDdwsNMD2XExI3pmLm:rsDn6SKiDdwsNMD2XExI3pm
Score
10/10
Malware Config
Signatures
-
Njrat family
-
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation 1.exe -
Drops startup file 2 IoCs
description ioc Process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ba504e39d49d09ba3f0b71067d651692.exe 1.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ba504e39d49d09ba3f0b71067d651692.exe 1.exe -
Executes dropped EXE 1 IoCs
pid Process 2348 2bf559a040834f2383d0bdd970813c17.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ba504e39d49d09ba3f0b71067d651692 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\1.exe\" .." 1.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ba504e39d49d09ba3f0b71067d651692 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\1.exe\" .." 1.exe -
resource yara_rule behavioral2/files/0x0004000000011940-13.dat upx behavioral2/memory/2348-17-0x0000000000400000-0x0000000000454000-memory.dmp upx -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 1.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2bf559a040834f2383d0bdd970813c17.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe 848 1.exe -
Suspicious use of AdjustPrivilegeToken 37 IoCs
description pid Process Token: SeDebugPrivilege 848 1.exe Token: 33 848 1.exe Token: SeIncBasePriorityPrivilege 848 1.exe Token: 33 848 1.exe Token: SeIncBasePriorityPrivilege 848 1.exe Token: 33 848 1.exe Token: SeIncBasePriorityPrivilege 848 1.exe Token: 33 848 1.exe Token: SeIncBasePriorityPrivilege 848 1.exe Token: 33 848 1.exe Token: SeIncBasePriorityPrivilege 848 1.exe Token: 33 848 1.exe Token: SeIncBasePriorityPrivilege 848 1.exe Token: 33 848 1.exe Token: SeIncBasePriorityPrivilege 848 1.exe Token: 33 848 1.exe Token: SeIncBasePriorityPrivilege 848 1.exe Token: 33 848 1.exe Token: SeIncBasePriorityPrivilege 848 1.exe Token: 33 848 1.exe Token: SeIncBasePriorityPrivilege 848 1.exe Token: 33 848 1.exe Token: SeIncBasePriorityPrivilege 848 1.exe Token: 33 848 1.exe Token: SeIncBasePriorityPrivilege 848 1.exe Token: 33 848 1.exe Token: SeIncBasePriorityPrivilege 848 1.exe Token: 33 848 1.exe Token: SeIncBasePriorityPrivilege 848 1.exe Token: 33 848 1.exe Token: SeIncBasePriorityPrivilege 848 1.exe Token: 33 848 1.exe Token: SeIncBasePriorityPrivilege 848 1.exe Token: 33 848 1.exe Token: SeIncBasePriorityPrivilege 848 1.exe Token: 33 848 1.exe Token: SeIncBasePriorityPrivilege 848 1.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 848 wrote to memory of 2348 848 1.exe 91 PID 848 wrote to memory of 2348 848 1.exe 91 PID 848 wrote to memory of 2348 848 1.exe 91
Processes
-
C:\Users\Admin\AppData\Local\Temp\1.exe"C:\Users\Admin\AppData\Local\Temp\1.exe"1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:848 -
C:\Users\Admin\AppData\Local\Temp\2bf559a040834f2383d0bdd970813c17.exe"C:\Users\Admin\AppData\Local\Temp\2bf559a040834f2383d0bdd970813c17.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2348
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
125KB
MD5ea534626d73f9eb0e134de9885054892
SHA1ab03e674b407aecf29c907b39717dec004843b13
SHA256322eb96fc33119d8ed21b45f1cd57670f74fb42fd8888275ca4879dce1c1511c
SHA512c8cda90323fd94387a566641ec48cb086540a400726032f3261151afe8a981730688a4dcd0983d9585355e22833a035ef627dbd1f643c4399f9ddce118a3a851