Analysis
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max time kernel
149s -
max time network
146s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
22-12-2024 15:57
Behavioral task
behavioral1
Sample
b37a23c15405fb69a686131777c09b9c0242a78a2727f56d92505ed6b47ecdde.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
b37a23c15405fb69a686131777c09b9c0242a78a2727f56d92505ed6b47ecdde.exe
Resource
win10v2004-20241007-en
General
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Target
b37a23c15405fb69a686131777c09b9c0242a78a2727f56d92505ed6b47ecdde.exe
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Size
29KB
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MD5
ddcec6b1567e6594575633c42cc28675
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SHA1
b82fda858010b8a5c16398237f9ded730ad7dcc8
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SHA256
b37a23c15405fb69a686131777c09b9c0242a78a2727f56d92505ed6b47ecdde
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SHA512
a386756bf6ed2339e5ab32142e4bb03a7f622bd7e959b322312b737f38c748defe3a082a005396f2be3acd5f7b27d8089265165a8d63d49df44c4c77d7a4e454
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SSDEEP
768:3Iv/27NYsDkf3mEMqw7ecBKh0p29SgR8iN:Ym7N1XfdFKhG29j8iN
Malware Config
Signatures
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Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 1984 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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation b37a23c15405fb69a686131777c09b9c0242a78a2727f56d92505ed6b47ecdde.exe -
Drops startup file 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\5cd8f17f4086744065eb0992a09e05a2.exe Trojan.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\5cd8f17f4086744065eb0992a09e05a2.exe Trojan.exe -
Executes dropped EXE 1 IoCs
pid Process 2568 Trojan.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\5cd8f17f4086744065eb0992a09e05a2 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Trojan.exe\" .." Trojan.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\5cd8f17f4086744065eb0992a09e05a2 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Trojan.exe\" .." Trojan.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 b37a23c15405fb69a686131777c09b9c0242a78a2727f56d92505ed6b47ecdde.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Trojan.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language netsh.exe -
Suspicious behavior: EnumeratesProcesses 48 IoCs
pid Process 2568 Trojan.exe 2568 Trojan.exe 2568 Trojan.exe 2568 Trojan.exe 2568 Trojan.exe 2568 Trojan.exe 2568 Trojan.exe 2568 Trojan.exe 2568 Trojan.exe 2568 Trojan.exe 2568 Trojan.exe 2568 Trojan.exe 2568 Trojan.exe 2568 Trojan.exe 2568 Trojan.exe 2568 Trojan.exe 2568 Trojan.exe 2568 Trojan.exe 2568 Trojan.exe 2568 Trojan.exe 2568 Trojan.exe 2568 Trojan.exe 2568 Trojan.exe 2568 Trojan.exe 2568 Trojan.exe 2568 Trojan.exe 2568 Trojan.exe 2568 Trojan.exe 2568 Trojan.exe 2568 Trojan.exe 2568 Trojan.exe 2568 Trojan.exe 2568 Trojan.exe 2568 Trojan.exe 2568 Trojan.exe 2568 Trojan.exe 2568 Trojan.exe 2568 Trojan.exe 2568 Trojan.exe 2568 Trojan.exe 2568 Trojan.exe 2568 Trojan.exe 2568 Trojan.exe 2568 Trojan.exe 2568 Trojan.exe 2568 Trojan.exe 2568 Trojan.exe 2568 Trojan.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2568 Trojan.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 1244 wrote to memory of 2568 1244 b37a23c15405fb69a686131777c09b9c0242a78a2727f56d92505ed6b47ecdde.exe 83 PID 1244 wrote to memory of 2568 1244 b37a23c15405fb69a686131777c09b9c0242a78a2727f56d92505ed6b47ecdde.exe 83 PID 1244 wrote to memory of 2568 1244 b37a23c15405fb69a686131777c09b9c0242a78a2727f56d92505ed6b47ecdde.exe 83 PID 2568 wrote to memory of 1984 2568 Trojan.exe 84 PID 2568 wrote to memory of 1984 2568 Trojan.exe 84 PID 2568 wrote to memory of 1984 2568 Trojan.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\b37a23c15405fb69a686131777c09b9c0242a78a2727f56d92505ed6b47ecdde.exe"C:\Users\Admin\AppData\Local\Temp\b37a23c15405fb69a686131777c09b9c0242a78a2727f56d92505ed6b47ecdde.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1244 -
C:\Users\Admin\AppData\Local\Temp\Trojan.exe"C:\Users\Admin\AppData\Local\Temp\Trojan.exe"2⤵
- Drops startup file
- Executes dropped EXE
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2568 -
C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Trojan.exe" "Trojan.exe" ENABLE3⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
- System Location Discovery: System Language Discovery
PID:1984
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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
29KB
MD5ddcec6b1567e6594575633c42cc28675
SHA1b82fda858010b8a5c16398237f9ded730ad7dcc8
SHA256b37a23c15405fb69a686131777c09b9c0242a78a2727f56d92505ed6b47ecdde
SHA512a386756bf6ed2339e5ab32142e4bb03a7f622bd7e959b322312b737f38c748defe3a082a005396f2be3acd5f7b27d8089265165a8d63d49df44c4c77d7a4e454