Analysis
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max time kernel
150s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
26-12-2024 10:40
Behavioral task
behavioral1
Sample
ef022f571bbe78532cc1d1d09689470933f629f5e3775929f8926d7b51e6f122_Sigmanly.exe
Resource
win7-20240903-en
windows7-x64
13 signatures
150 seconds
Behavioral task
behavioral2
Sample
ef022f571bbe78532cc1d1d09689470933f629f5e3775929f8926d7b51e6f122_Sigmanly.exe
Resource
win10v2004-20241007-en
windows10-2004-x64
14 signatures
150 seconds
General
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Target
ef022f571bbe78532cc1d1d09689470933f629f5e3775929f8926d7b51e6f122_Sigmanly.exe
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Size
93KB
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MD5
4951d592fac59ef8005596d2af5d116b
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SHA1
536ab7195afefb6c8947a86b10adb8d0461f7115
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SHA256
ef022f571bbe78532cc1d1d09689470933f629f5e3775929f8926d7b51e6f122
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SHA512
3f551f1b653764dae9d75dbdf764389786a6004ef2c49f3c7ba81bb4412adc7c8c3315649e4c5a8f970b3f185f67e6f04bacf1264f233225511d45cb75d20ff1
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SSDEEP
1536:ZYduiuNTXfL/AJbZNljEwzGi1dDFDugS:ZYdaTXfL/AhzSi1dJT
Malware Config
Signatures
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Disables Task Manager via registry modification
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Modifies Windows Firewall 2 TTPs 3 IoCs
pid Process 2548 netsh.exe 2108 netsh.exe 2212 netsh.exe -
Drops startup file 6 IoCs
description ioc Process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\DeadMom.exe server.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Corporation.exe server.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Corporation.exe server.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\445c7762b8f06a76352fcac2e22df159Windows Update.exe server.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\445c7762b8f06a76352fcac2e22df159Windows Update.exe server.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\DeadMom.exe server.exe -
Executes dropped EXE 1 IoCs
pid Process 2684 server.exe -
Drops file in System32 directory 2 IoCs
description ioc Process File created C:\Windows\SysWOW64\DeadMom.exe server.exe File opened for modification C:\Windows\SysWOW64\DeadMom.exe server.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\server.exe ef022f571bbe78532cc1d1d09689470933f629f5e3775929f8926d7b51e6f122_Sigmanly.exe File opened for modification C:\Windows\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 9 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 value enumerated \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh netsh.exe Key queried \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 Key opened \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh netsh.exe Key queried \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh netsh.exe Key opened \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 5 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 netsh.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language netsh.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language netsh.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language ef022f571bbe78532cc1d1d09689470933f629f5e3775929f8926d7b51e6f122_Sigmanly.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language server.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe 2684 server.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2684 server.exe -
Suspicious use of AdjustPrivilegeToken 37 IoCs
description pid Process Token: SeDebugPrivilege 2684 server.exe Token: 33 2684 server.exe Token: SeIncBasePriorityPrivilege 2684 server.exe Token: 33 2684 server.exe Token: SeIncBasePriorityPrivilege 2684 server.exe Token: 33 2684 server.exe Token: SeIncBasePriorityPrivilege 2684 server.exe Token: 33 2684 server.exe Token: SeIncBasePriorityPrivilege 2684 server.exe Token: 33 2684 server.exe Token: SeIncBasePriorityPrivilege 2684 server.exe Token: 33 2684 server.exe Token: SeIncBasePriorityPrivilege 2684 server.exe Token: 33 2684 server.exe Token: SeIncBasePriorityPrivilege 2684 server.exe Token: 33 2684 server.exe Token: SeIncBasePriorityPrivilege 2684 server.exe Token: 33 2684 server.exe Token: SeIncBasePriorityPrivilege 2684 server.exe Token: 33 2684 server.exe Token: SeIncBasePriorityPrivilege 2684 server.exe Token: 33 2684 server.exe Token: SeIncBasePriorityPrivilege 2684 server.exe Token: 33 2684 server.exe Token: SeIncBasePriorityPrivilege 2684 server.exe Token: 33 2684 server.exe Token: SeIncBasePriorityPrivilege 2684 server.exe Token: 33 2684 server.exe Token: SeIncBasePriorityPrivilege 2684 server.exe Token: 33 2684 server.exe Token: SeIncBasePriorityPrivilege 2684 server.exe Token: 33 2684 server.exe Token: SeIncBasePriorityPrivilege 2684 server.exe Token: 33 2684 server.exe Token: SeIncBasePriorityPrivilege 2684 server.exe Token: 33 2684 server.exe Token: SeIncBasePriorityPrivilege 2684 server.exe -
Suspicious use of WriteProcessMemory 16 IoCs
description pid Process procid_target PID 2748 wrote to memory of 2684 2748 ef022f571bbe78532cc1d1d09689470933f629f5e3775929f8926d7b51e6f122_Sigmanly.exe 30 PID 2748 wrote to memory of 2684 2748 ef022f571bbe78532cc1d1d09689470933f629f5e3775929f8926d7b51e6f122_Sigmanly.exe 30 PID 2748 wrote to memory of 2684 2748 ef022f571bbe78532cc1d1d09689470933f629f5e3775929f8926d7b51e6f122_Sigmanly.exe 30 PID 2748 wrote to memory of 2684 2748 ef022f571bbe78532cc1d1d09689470933f629f5e3775929f8926d7b51e6f122_Sigmanly.exe 30 PID 2684 wrote to memory of 2548 2684 server.exe 31 PID 2684 wrote to memory of 2548 2684 server.exe 31 PID 2684 wrote to memory of 2548 2684 server.exe 31 PID 2684 wrote to memory of 2548 2684 server.exe 31 PID 2684 wrote to memory of 2108 2684 server.exe 33 PID 2684 wrote to memory of 2108 2684 server.exe 33 PID 2684 wrote to memory of 2108 2684 server.exe 33 PID 2684 wrote to memory of 2108 2684 server.exe 33 PID 2684 wrote to memory of 2212 2684 server.exe 35 PID 2684 wrote to memory of 2212 2684 server.exe 35 PID 2684 wrote to memory of 2212 2684 server.exe 35 PID 2684 wrote to memory of 2212 2684 server.exe 35
Processes
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C:\Users\Admin\AppData\Local\Temp\ef022f571bbe78532cc1d1d09689470933f629f5e3775929f8926d7b51e6f122_Sigmanly.exe"C:\Users\Admin\AppData\Local\Temp\ef022f571bbe78532cc1d1d09689470933f629f5e3775929f8926d7b51e6f122_Sigmanly.exe"1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2748 -
C:\Windows\server.exe"C:\Windows\server.exe"2⤵
- Drops startup file
- Executes dropped EXE
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2684 -
C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Windows\server.exe" "server.exe" ENABLE3⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
- System Location Discovery: System Language Discovery
PID:2548
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C:\Windows\SysWOW64\netsh.exenetsh firewall delete allowedprogram "C:\Windows\server.exe"3⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
- System Location Discovery: System Language Discovery
PID:2108
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C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Windows\server.exe" "server.exe" ENABLE3⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
- System Location Discovery: System Language Discovery
PID:2212
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Network
MITRE ATT&CK Enterprise v15
Persistence
Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Privilege Escalation
Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Replay Monitor
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Downloads
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Filesize
5B
MD55014379cf5fa31db8a73d68d6353a145
SHA12a1a5138e8c9e7547caae1c9fb223afbf714ed00
SHA256538b830838cbf62e6ce267b48e2eb165030686e5b6317f0b1e9205a3e08c73b8
SHA5125091a16ef7730449601a70b5ef5512a93c98c76beb8cfee1adc9d39780c49b1d712e764720b04e44e18c7b08633c5d453793462c18dc6bef14d82bf69892e18f
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Filesize
93KB
MD54951d592fac59ef8005596d2af5d116b
SHA1536ab7195afefb6c8947a86b10adb8d0461f7115
SHA256ef022f571bbe78532cc1d1d09689470933f629f5e3775929f8926d7b51e6f122
SHA5123f551f1b653764dae9d75dbdf764389786a6004ef2c49f3c7ba81bb4412adc7c8c3315649e4c5a8f970b3f185f67e6f04bacf1264f233225511d45cb75d20ff1