Analysis
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max time kernel
114s -
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
05-11-2024 17:13
Static task
static1
Behavioral task
behavioral1
Sample
7818d48041e19c88709113ec72fe00f3164285d90bd1f5a1de553e806229b216N.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
7818d48041e19c88709113ec72fe00f3164285d90bd1f5a1de553e806229b216N.exe
Resource
win10v2004-20241007-en
General
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Target
7818d48041e19c88709113ec72fe00f3164285d90bd1f5a1de553e806229b216N.exe
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Size
113KB
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MD5
1a8383ed5aa8a0c43c1437044532b200
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SHA1
4091c04389e4a52711b699801aeccca10f95b41c
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SHA256
7818d48041e19c88709113ec72fe00f3164285d90bd1f5a1de553e806229b216
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SHA512
c7ea9d63486ab2c7f425853661e478fb3c3737ad2a2ba22351ab2f76ae1396e2b97ead5dfa541c40ca87c536e1df1a6f7fe9486e9a6c0f50e0af708d07d9ddd9
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SSDEEP
1536:orp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4xtKegoxmOBh73v7:w5eznsjsguGDFqGx8egoxmO3rv7
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 3044 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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation 7818d48041e19c88709113ec72fe00f3164285d90bd1f5a1de553e806229b216N.exe -
Executes dropped EXE 2 IoCs
pid Process 4888 chargeable.exe 4940 chargeable.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\confuse = "C:\\Users\\Admin\\AppData\\Roaming\\confuse\\chargeable.exe" 7818d48041e19c88709113ec72fe00f3164285d90bd1f5a1de553e806229b216N.exe Set value (str) \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysMain = "C:\\Users\\Admin\\AppData\\Local\\Temp\\7818d48041e19c88709113ec72fe00f3164285d90bd1f5a1de553e806229b216N.exe" 7818d48041e19c88709113ec72fe00f3164285d90bd1f5a1de553e806229b216N.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4888 set thread context of 4940 4888 chargeable.exe 98 -
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 opened \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key queried \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key value enumerated \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 7818d48041e19c88709113ec72fe00f3164285d90bd1f5a1de553e806229b216N.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 4940 chargeable.exe Token: 33 4940 chargeable.exe Token: SeIncBasePriorityPrivilege 4940 chargeable.exe Token: 33 4940 chargeable.exe Token: SeIncBasePriorityPrivilege 4940 chargeable.exe Token: 33 4940 chargeable.exe Token: SeIncBasePriorityPrivilege 4940 chargeable.exe Token: 33 4940 chargeable.exe Token: SeIncBasePriorityPrivilege 4940 chargeable.exe Token: 33 4940 chargeable.exe Token: SeIncBasePriorityPrivilege 4940 chargeable.exe Token: 33 4940 chargeable.exe Token: SeIncBasePriorityPrivilege 4940 chargeable.exe Token: 33 4940 chargeable.exe Token: SeIncBasePriorityPrivilege 4940 chargeable.exe Token: 33 4940 chargeable.exe Token: SeIncBasePriorityPrivilege 4940 chargeable.exe Token: 33 4940 chargeable.exe Token: SeIncBasePriorityPrivilege 4940 chargeable.exe Token: 33 4940 chargeable.exe Token: SeIncBasePriorityPrivilege 4940 chargeable.exe Token: 33 4940 chargeable.exe Token: SeIncBasePriorityPrivilege 4940 chargeable.exe Token: 33 4940 chargeable.exe Token: SeIncBasePriorityPrivilege 4940 chargeable.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 2980 wrote to memory of 4888 2980 7818d48041e19c88709113ec72fe00f3164285d90bd1f5a1de553e806229b216N.exe 93 PID 2980 wrote to memory of 4888 2980 7818d48041e19c88709113ec72fe00f3164285d90bd1f5a1de553e806229b216N.exe 93 PID 2980 wrote to memory of 4888 2980 7818d48041e19c88709113ec72fe00f3164285d90bd1f5a1de553e806229b216N.exe 93 PID 4888 wrote to memory of 4940 4888 chargeable.exe 98 PID 4888 wrote to memory of 4940 4888 chargeable.exe 98 PID 4888 wrote to memory of 4940 4888 chargeable.exe 98 PID 4888 wrote to memory of 4940 4888 chargeable.exe 98 PID 4888 wrote to memory of 4940 4888 chargeable.exe 98 PID 4888 wrote to memory of 4940 4888 chargeable.exe 98 PID 4888 wrote to memory of 4940 4888 chargeable.exe 98 PID 4888 wrote to memory of 4940 4888 chargeable.exe 98 PID 4940 wrote to memory of 3044 4940 chargeable.exe 99 PID 4940 wrote to memory of 3044 4940 chargeable.exe 99 PID 4940 wrote to memory of 3044 4940 chargeable.exe 99
Processes
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C:\Users\Admin\AppData\Local\Temp\7818d48041e19c88709113ec72fe00f3164285d90bd1f5a1de553e806229b216N.exe"C:\Users\Admin\AppData\Local\Temp\7818d48041e19c88709113ec72fe00f3164285d90bd1f5a1de553e806229b216N.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2980 -
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:4888 -
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:4940 -
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:3044
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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
113KB
MD539df4ae585b51f470bc3b3b512ff7a98
SHA1b3f16bac7c35aa2a3fa560fda4c61afe912afd84
SHA25669acfc897ccec3938883fec42e43168e81541634b0b3764777ae5bd2f90c304c
SHA512e850d55e20bff3a667f6cc81729fef80481c6b4743c777d87212df45ed06583885249ae2e91a70dd8cb2ee600f7a2ad068494a690848ecddd257f4c92e5994e9