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Analysis
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max time kernel
119s -
max time network
120s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
22/09/2024, 09:14
Behavioral task
behavioral1
Sample
3978d80f61dc860809a877ae2e17a21ec4dfdf02f81953fa1b14eda65055d87cN.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
3978d80f61dc860809a877ae2e17a21ec4dfdf02f81953fa1b14eda65055d87cN.exe
Resource
win10v2004-20240802-en
General
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Target
3978d80f61dc860809a877ae2e17a21ec4dfdf02f81953fa1b14eda65055d87cN.exe
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Size
23KB
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MD5
a1d501174bd8a3f273c0070a3197fb40
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SHA1
7aa9b572d8ec818334daf8f2e42191d2413b9965
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SHA256
3978d80f61dc860809a877ae2e17a21ec4dfdf02f81953fa1b14eda65055d87c
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SHA512
1a588bc1640479b24a38e7c44586290d9b69f91e4f882b2fc73db0fe8b2bec30df4f3a57bfb17cac6edf0627138f1dd90495c90dabab702032ea523c2c1fdf7f
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SSDEEP
384:+wTSiYWD2Z7w3CsJeiecwJ3fw6FgzeAh33RtmRvR6JZlbw8hqIusZzZw35y:1vZiBK1edJRpcnuVg
Malware Config
Signatures
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Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 3428 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-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation 3978d80f61dc860809a877ae2e17a21ec4dfdf02f81953fa1b14eda65055d87cN.exe -
Executes dropped EXE 1 IoCs
pid Process 3832 server.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\a6fcc754ccac3851245ca8d1891d5ad2 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .." server.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\a6fcc754ccac3851245ca8d1891d5ad2 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .." server.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.
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 3 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 3978d80f61dc860809a877ae2e17a21ec4dfdf02f81953fa1b14eda65055d87cN.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language server.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language netsh.exe -
Suspicious use of AdjustPrivilegeToken 27 IoCs
description pid Process Token: SeDebugPrivilege 3832 server.exe Token: 33 3832 server.exe Token: SeIncBasePriorityPrivilege 3832 server.exe Token: 33 3832 server.exe Token: SeIncBasePriorityPrivilege 3832 server.exe Token: 33 3832 server.exe Token: SeIncBasePriorityPrivilege 3832 server.exe Token: 33 3832 server.exe Token: SeIncBasePriorityPrivilege 3832 server.exe Token: 33 3832 server.exe Token: SeIncBasePriorityPrivilege 3832 server.exe Token: 33 3832 server.exe Token: SeIncBasePriorityPrivilege 3832 server.exe Token: 33 3832 server.exe Token: SeIncBasePriorityPrivilege 3832 server.exe Token: 33 3832 server.exe Token: SeIncBasePriorityPrivilege 3832 server.exe Token: 33 3832 server.exe Token: SeIncBasePriorityPrivilege 3832 server.exe Token: 33 3832 server.exe Token: SeIncBasePriorityPrivilege 3832 server.exe Token: 33 3832 server.exe Token: SeIncBasePriorityPrivilege 3832 server.exe Token: 33 3832 server.exe Token: SeIncBasePriorityPrivilege 3832 server.exe Token: 33 3832 server.exe Token: SeIncBasePriorityPrivilege 3832 server.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4020 wrote to memory of 3832 4020 3978d80f61dc860809a877ae2e17a21ec4dfdf02f81953fa1b14eda65055d87cN.exe 94 PID 4020 wrote to memory of 3832 4020 3978d80f61dc860809a877ae2e17a21ec4dfdf02f81953fa1b14eda65055d87cN.exe 94 PID 4020 wrote to memory of 3832 4020 3978d80f61dc860809a877ae2e17a21ec4dfdf02f81953fa1b14eda65055d87cN.exe 94 PID 3832 wrote to memory of 3428 3832 server.exe 98 PID 3832 wrote to memory of 3428 3832 server.exe 98 PID 3832 wrote to memory of 3428 3832 server.exe 98
Processes
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C:\Users\Admin\AppData\Local\Temp\3978d80f61dc860809a877ae2e17a21ec4dfdf02f81953fa1b14eda65055d87cN.exe"C:\Users\Admin\AppData\Local\Temp\3978d80f61dc860809a877ae2e17a21ec4dfdf02f81953fa1b14eda65055d87cN.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4020 -
C:\Users\Admin\AppData\Local\Temp\server.exe"C:\Users\Admin\AppData\Local\Temp\server.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3832 -
C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE3⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
- System Location Discovery: System Language Discovery
PID:3428
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4132,i,16316361669272684588,6171287487746154806,262144 --variations-seed-version --mojo-platform-channel-handle=4080 /prefetch:81⤵PID:2224
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
23KB
MD5a1d501174bd8a3f273c0070a3197fb40
SHA17aa9b572d8ec818334daf8f2e42191d2413b9965
SHA2563978d80f61dc860809a877ae2e17a21ec4dfdf02f81953fa1b14eda65055d87c
SHA5121a588bc1640479b24a38e7c44586290d9b69f91e4f882b2fc73db0fe8b2bec30df4f3a57bfb17cac6edf0627138f1dd90495c90dabab702032ea523c2c1fdf7f