Analysis
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max time kernel
114s -
max time network
119s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
13-08-2024 01:04
Static task
static1
Behavioral task
behavioral1
Sample
b3b8760694afb936a598a3c8ac476080N.exe
Resource
win7-20240705-en
Behavioral task
behavioral2
Sample
b3b8760694afb936a598a3c8ac476080N.exe
Resource
win10v2004-20240802-en
General
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Target
b3b8760694afb936a598a3c8ac476080N.exe
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Size
114KB
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MD5
b3b8760694afb936a598a3c8ac476080
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SHA1
caad05a5fde719bafa3f1acf96b0a61604b1d579
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SHA256
36d1196e9a0ed69fc4648f126c265a3c5d7be8891ed3cba9265ec73e59b2f460
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SHA512
ae4b1116a381797944069ef2e4b2746e3cabf63ef6aeede455ece3eb8e7b55ce7c1658d157a29f3b1a82e81cf1b830f9804fdd0400eeeb38d97cd0fad6689318
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SSDEEP
1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuM16:P5eznsjsguGDFqGZ2rY
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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Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 2424 netsh.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
b3b8760694afb936a598a3c8ac476080N.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation b3b8760694afb936a598a3c8ac476080N.exe -
Executes dropped EXE 2 IoCs
Processes:
chargeable.exechargeable.exepid process 4548 chargeable.exe 3760 chargeable.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
b3b8760694afb936a598a3c8ac476080N.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\confuse = "C:\\Users\\Admin\\AppData\\Roaming\\confuse\\chargeable.exe" b3b8760694afb936a598a3c8ac476080N.exe Set value (str) \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysMain = "C:\\Users\\Admin\\AppData\\Local\\Temp\\b3b8760694afb936a598a3c8ac476080N.exe" b3b8760694afb936a598a3c8ac476080N.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
chargeable.exedescription pid process target process PID 4548 set thread context of 3760 4548 chargeable.exe chargeable.exe -
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.
Processes:
netsh.exedescription 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.
Processes:
b3b8760694afb936a598a3c8ac476080N.exechargeable.exechargeable.exenetsh.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language b3b8760694afb936a598a3c8ac476080N.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
Processes:
chargeable.exedescription pid process Token: SeDebugPrivilege 3760 chargeable.exe Token: 33 3760 chargeable.exe Token: SeIncBasePriorityPrivilege 3760 chargeable.exe Token: 33 3760 chargeable.exe Token: SeIncBasePriorityPrivilege 3760 chargeable.exe Token: 33 3760 chargeable.exe Token: SeIncBasePriorityPrivilege 3760 chargeable.exe Token: 33 3760 chargeable.exe Token: SeIncBasePriorityPrivilege 3760 chargeable.exe Token: 33 3760 chargeable.exe Token: SeIncBasePriorityPrivilege 3760 chargeable.exe Token: 33 3760 chargeable.exe Token: SeIncBasePriorityPrivilege 3760 chargeable.exe Token: 33 3760 chargeable.exe Token: SeIncBasePriorityPrivilege 3760 chargeable.exe Token: 33 3760 chargeable.exe Token: SeIncBasePriorityPrivilege 3760 chargeable.exe Token: 33 3760 chargeable.exe Token: SeIncBasePriorityPrivilege 3760 chargeable.exe Token: 33 3760 chargeable.exe Token: SeIncBasePriorityPrivilege 3760 chargeable.exe Token: 33 3760 chargeable.exe Token: SeIncBasePriorityPrivilege 3760 chargeable.exe Token: 33 3760 chargeable.exe Token: SeIncBasePriorityPrivilege 3760 chargeable.exe -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
b3b8760694afb936a598a3c8ac476080N.exechargeable.exechargeable.exedescription pid process target process PID 1116 wrote to memory of 4548 1116 b3b8760694afb936a598a3c8ac476080N.exe chargeable.exe PID 1116 wrote to memory of 4548 1116 b3b8760694afb936a598a3c8ac476080N.exe chargeable.exe PID 1116 wrote to memory of 4548 1116 b3b8760694afb936a598a3c8ac476080N.exe chargeable.exe PID 4548 wrote to memory of 3760 4548 chargeable.exe chargeable.exe PID 4548 wrote to memory of 3760 4548 chargeable.exe chargeable.exe PID 4548 wrote to memory of 3760 4548 chargeable.exe chargeable.exe PID 4548 wrote to memory of 3760 4548 chargeable.exe chargeable.exe PID 4548 wrote to memory of 3760 4548 chargeable.exe chargeable.exe PID 4548 wrote to memory of 3760 4548 chargeable.exe chargeable.exe PID 4548 wrote to memory of 3760 4548 chargeable.exe chargeable.exe PID 4548 wrote to memory of 3760 4548 chargeable.exe chargeable.exe PID 3760 wrote to memory of 2424 3760 chargeable.exe netsh.exe PID 3760 wrote to memory of 2424 3760 chargeable.exe netsh.exe PID 3760 wrote to memory of 2424 3760 chargeable.exe netsh.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\b3b8760694afb936a598a3c8ac476080N.exe"C:\Users\Admin\AppData\Local\Temp\b3b8760694afb936a598a3c8ac476080N.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1116 -
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:4548 -
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:3760 -
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:2424
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
114KB
MD55042183b4cb72a3e9ac45e3eff55d1b1
SHA111f21768f23d0aae19d03f2f6445876af9aec289
SHA25619b691b5c90e0c1df7e92d81d72b3ecf627da070dee0e19d08d4033039ec9fd9
SHA51292502890c6e3b9b5327266969f18b08f4a01be6af77c9849dfe2718fb292135d5dcb95911e9f4e2276a33d4676cb784cbddf163a47f19a089f2d3c3d4507946c