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Analysis
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max time kernel
116s -
max time network
120s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
25/10/2024, 19:02
Static task
static1
Behavioral task
behavioral1
Sample
98f649cb49b476d4446f2305e67c5394dd6e28b168683d8f9995d0a1c1eb61dfN.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
98f649cb49b476d4446f2305e67c5394dd6e28b168683d8f9995d0a1c1eb61dfN.exe
Resource
win10v2004-20241007-en
General
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Target
98f649cb49b476d4446f2305e67c5394dd6e28b168683d8f9995d0a1c1eb61dfN.exe
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Size
117KB
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MD5
6eefb4f44dfecd1aff72270ce996d260
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SHA1
ca44fdb831b46dfee3ceb04a52bb111d9cfec7a7
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SHA256
98f649cb49b476d4446f2305e67c5394dd6e28b168683d8f9995d0a1c1eb61df
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SHA512
8bcf0f60850a2a3c1808eeff9350cd4249a8156495c61c9af2ccaa049a9506cc0a0b1b5db9cd09b31399f0ba47eb50969f4f215be13aa6a26927ebbb63696bd1
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SSDEEP
1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMDLVH:P5eznsjsguGDFqGZ2rDLt
Malware Config
Extracted
njrat
0.7d
neuf
doddyfire.linkpc.net:10000
e1a87040f2026369a233f9ae76301b7b
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reg_key
e1a87040f2026369a233f9ae76301b7b
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splitter
|'|'|
Signatures
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Njrat family
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Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 4476 netsh.exe -
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 98f649cb49b476d4446f2305e67c5394dd6e28b168683d8f9995d0a1c1eb61dfN.exe -
Executes dropped EXE 2 IoCs
pid Process 2564 chargeable.exe 4548 chargeable.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\confuse = "C:\\Users\\Admin\\AppData\\Roaming\\confuse\\chargeable.exe" 98f649cb49b476d4446f2305e67c5394dd6e28b168683d8f9995d0a1c1eb61dfN.exe Set value (str) \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysMain = "C:\\Users\\Admin\\AppData\\Local\\Temp\\98f649cb49b476d4446f2305e67c5394dd6e28b168683d8f9995d0a1c1eb61dfN.exe" 98f649cb49b476d4446f2305e67c5394dd6e28b168683d8f9995d0a1c1eb61dfN.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2564 set thread context of 4548 2564 chargeable.exe 95 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs
Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.
description ioc Process Key queried \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key value enumerated \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key opened \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe -
System Location Discovery: System Language Discovery 1 TTPs 4 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 98f649cb49b476d4446f2305e67c5394dd6e28b168683d8f9995d0a1c1eb61dfN.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language chargeable.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language chargeable.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language netsh.exe -
Suspicious use of AdjustPrivilegeToken 25 IoCs
description pid Process Token: SeDebugPrivilege 4548 chargeable.exe Token: 33 4548 chargeable.exe Token: SeIncBasePriorityPrivilege 4548 chargeable.exe Token: 33 4548 chargeable.exe Token: SeIncBasePriorityPrivilege 4548 chargeable.exe Token: 33 4548 chargeable.exe Token: SeIncBasePriorityPrivilege 4548 chargeable.exe Token: 33 4548 chargeable.exe Token: SeIncBasePriorityPrivilege 4548 chargeable.exe Token: 33 4548 chargeable.exe Token: SeIncBasePriorityPrivilege 4548 chargeable.exe Token: 33 4548 chargeable.exe Token: SeIncBasePriorityPrivilege 4548 chargeable.exe Token: 33 4548 chargeable.exe Token: SeIncBasePriorityPrivilege 4548 chargeable.exe Token: 33 4548 chargeable.exe Token: SeIncBasePriorityPrivilege 4548 chargeable.exe Token: 33 4548 chargeable.exe Token: SeIncBasePriorityPrivilege 4548 chargeable.exe Token: 33 4548 chargeable.exe Token: SeIncBasePriorityPrivilege 4548 chargeable.exe Token: 33 4548 chargeable.exe Token: SeIncBasePriorityPrivilege 4548 chargeable.exe Token: 33 4548 chargeable.exe Token: SeIncBasePriorityPrivilege 4548 chargeable.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 3396 wrote to memory of 2564 3396 98f649cb49b476d4446f2305e67c5394dd6e28b168683d8f9995d0a1c1eb61dfN.exe 92 PID 3396 wrote to memory of 2564 3396 98f649cb49b476d4446f2305e67c5394dd6e28b168683d8f9995d0a1c1eb61dfN.exe 92 PID 3396 wrote to memory of 2564 3396 98f649cb49b476d4446f2305e67c5394dd6e28b168683d8f9995d0a1c1eb61dfN.exe 92 PID 2564 wrote to memory of 4548 2564 chargeable.exe 95 PID 2564 wrote to memory of 4548 2564 chargeable.exe 95 PID 2564 wrote to memory of 4548 2564 chargeable.exe 95 PID 2564 wrote to memory of 4548 2564 chargeable.exe 95 PID 2564 wrote to memory of 4548 2564 chargeable.exe 95 PID 2564 wrote to memory of 4548 2564 chargeable.exe 95 PID 2564 wrote to memory of 4548 2564 chargeable.exe 95 PID 2564 wrote to memory of 4548 2564 chargeable.exe 95 PID 4548 wrote to memory of 4476 4548 chargeable.exe 96 PID 4548 wrote to memory of 4476 4548 chargeable.exe 96 PID 4548 wrote to memory of 4476 4548 chargeable.exe 96
Processes
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C:\Users\Admin\AppData\Local\Temp\98f649cb49b476d4446f2305e67c5394dd6e28b168683d8f9995d0a1c1eb61dfN.exe"C:\Users\Admin\AppData\Local\Temp\98f649cb49b476d4446f2305e67c5394dd6e28b168683d8f9995d0a1c1eb61dfN.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3396 -
C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe"C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe"2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2564 -
C:\Users\Admin\AppData\Roaming\confuse\chargeable.exeC:\Users\Admin\AppData\Roaming\confuse\chargeable.exe3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4548 -
C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe" "chargeable.exe" ENABLE4⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
- System Location Discovery: System Language Discovery
PID:4476
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Defense Evasion
Impair Defenses
1Disable or Modify System Firewall
1Modify Registry
1Replay Monitor
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Downloads
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Filesize
400B
MD50a9b4592cd49c3c21f6767c2dabda92f
SHA1f534297527ae5ccc0ecb2221ddeb8e58daeb8b74
SHA256c7effe9cb81a70d738dee863991afefab040290d4c4b78b4202383bcb9f88fcd
SHA5126b878df474e5bbfb8e9e265f15a76560c2ef151dcebc6388c82d7f6f86ffaf83f5ade5a09f1842e493cb6c8fd63b0b88d088c728fd725f7139f965a5ee332307
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Filesize
117KB
MD59316e1a1e08ca69c45b3bb4621fb821c
SHA1d6942a801969d6088e76a51f6a8ff7fb5b9ed72f
SHA25697bf16d6abcce3517da04ed0ffd219d591e670ae1cbbbfb89e0214b690fbddb6
SHA512adfd361a78cbbc3998d13a3db14f13f1c440a787c78e98e74475afd8f49117b520623d7f75e9f854af1878cb4de7fd7c6273bdb4277b516c3d9aac5df720ff9c