Analysis
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max time kernel
120s -
max time network
71s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
25-12-2024 17:54
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
26c1c219353c4221687b6f46a2bf3c02afc488bf4058f74b79b260174a5911a2.exe
Resource
win7-20240903-en
windows7-x64
16 signatures
120 seconds
Behavioral task
behavioral2
Sample
26c1c219353c4221687b6f46a2bf3c02afc488bf4058f74b79b260174a5911a2.exe
Resource
win10v2004-20241007-en
windows10-2004-x64
3 signatures
120 seconds
General
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Target
26c1c219353c4221687b6f46a2bf3c02afc488bf4058f74b79b260174a5911a2.exe
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Size
146KB
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MD5
b8939fb07684c56407d96bcf433f350f
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SHA1
b20029ce96c288595a1e12597b3360d13f76cf22
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SHA256
26c1c219353c4221687b6f46a2bf3c02afc488bf4058f74b79b260174a5911a2
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SHA512
ed9ea1774f7655f16852fc3dcf310f747a586288007b9e345c01a197f95f06904d8206e8c59a6e8ca9727a68f454aa470594716e9830dc61b9e18478b27d0245
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SSDEEP
3072:JBL1t2b4DEDXUTKxGhqOIx4J2vNbGfvGnd3gW5ZM4/uZXqxue/1:yED92UhGNdndPZMTZXqxD/1
Malware Config
Signatures
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Modifies WinLogon for persistence 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "userinit.exe,C:\\Users\\Admin\\AppData\\Local\\fgbdwnko\\nmsphntf.exe" svchost.exe -
Ramnit family
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description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" svchost.exe -
Checks BIOS information in registry 2 TTPs 1 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion svchost.exe -
Drops startup file 2 IoCs
description ioc Process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\nmsphntf.exe svchost.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\nmsphntf.exe svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 2432 frqjxnufjyxpvjkv.exe -
Impair Defenses: Safe Mode Boot 1 TTPs 3 IoCs
description ioc Process Key deleted \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\WinDefend svchost.exe Key deleted \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\ProfSvc svchost.exe Key deleted \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\Power svchost.exe -
Loads dropped DLL 4 IoCs
pid Process 2392 26c1c219353c4221687b6f46a2bf3c02afc488bf4058f74b79b260174a5911a2.exe 2392 26c1c219353c4221687b6f46a2bf3c02afc488bf4058f74b79b260174a5911a2.exe 2392 26c1c219353c4221687b6f46a2bf3c02afc488bf4058f74b79b260174a5911a2.exe 2392 26c1c219353c4221687b6f46a2bf3c02afc488bf4058f74b79b260174a5911a2.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\NmsPhntf = "C:\\Users\\Admin\\AppData\\Local\\fgbdwnko\\nmsphntf.exe" svchost.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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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 26c1c219353c4221687b6f46a2bf3c02afc488bf4058f74b79b260174a5911a2.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language svchost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language svchost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language frqjxnufjyxpvjkv.exe -
Suspicious behavior: EnumeratesProcesses 60 IoCs
pid Process 536 svchost.exe 536 svchost.exe 536 svchost.exe 536 svchost.exe 536 svchost.exe 536 svchost.exe 536 svchost.exe 536 svchost.exe 536 svchost.exe 536 svchost.exe 536 svchost.exe 536 svchost.exe 536 svchost.exe 536 svchost.exe 536 svchost.exe 536 svchost.exe 536 svchost.exe 536 svchost.exe 536 svchost.exe 536 svchost.exe 536 svchost.exe 536 svchost.exe 536 svchost.exe 536 svchost.exe 536 svchost.exe 536 svchost.exe 536 svchost.exe 536 svchost.exe 536 svchost.exe 536 svchost.exe 536 svchost.exe 536 svchost.exe 536 svchost.exe 536 svchost.exe 536 svchost.exe 536 svchost.exe 536 svchost.exe 536 svchost.exe 536 svchost.exe 536 svchost.exe 536 svchost.exe 536 svchost.exe 536 svchost.exe 536 svchost.exe 536 svchost.exe 536 svchost.exe 536 svchost.exe 536 svchost.exe 536 svchost.exe 536 svchost.exe 536 svchost.exe 536 svchost.exe 536 svchost.exe 536 svchost.exe 536 svchost.exe 536 svchost.exe 536 svchost.exe 536 svchost.exe 536 svchost.exe 536 svchost.exe -
Suspicious behavior: LoadsDriver 1 IoCs
pid Process 476 Process not Found -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeSecurityPrivilege 2392 26c1c219353c4221687b6f46a2bf3c02afc488bf4058f74b79b260174a5911a2.exe Token: SeDebugPrivilege 2392 26c1c219353c4221687b6f46a2bf3c02afc488bf4058f74b79b260174a5911a2.exe Token: SeSecurityPrivilege 3068 svchost.exe Token: SeSecurityPrivilege 536 svchost.exe Token: SeDebugPrivilege 536 svchost.exe Token: SeRestorePrivilege 536 svchost.exe Token: SeBackupPrivilege 536 svchost.exe Token: SeRestorePrivilege 536 svchost.exe Token: SeBackupPrivilege 536 svchost.exe Token: SeRestorePrivilege 536 svchost.exe Token: SeBackupPrivilege 536 svchost.exe Token: SeRestorePrivilege 536 svchost.exe Token: SeBackupPrivilege 536 svchost.exe Token: SeRestorePrivilege 536 svchost.exe Token: SeBackupPrivilege 536 svchost.exe Token: SeRestorePrivilege 536 svchost.exe Token: SeBackupPrivilege 536 svchost.exe Token: SeSecurityPrivilege 2432 frqjxnufjyxpvjkv.exe Token: SeLoadDriverPrivilege 2432 frqjxnufjyxpvjkv.exe Token: SeRestorePrivilege 536 svchost.exe Token: SeBackupPrivilege 536 svchost.exe Token: SeRestorePrivilege 536 svchost.exe Token: SeBackupPrivilege 536 svchost.exe Token: SeRestorePrivilege 536 svchost.exe Token: SeBackupPrivilege 536 svchost.exe Token: SeRestorePrivilege 536 svchost.exe Token: SeBackupPrivilege 536 svchost.exe Token: SeRestorePrivilege 536 svchost.exe Token: SeBackupPrivilege 536 svchost.exe Token: SeRestorePrivilege 536 svchost.exe Token: SeBackupPrivilege 536 svchost.exe Token: SeRestorePrivilege 536 svchost.exe Token: SeBackupPrivilege 536 svchost.exe Token: SeRestorePrivilege 536 svchost.exe Token: SeBackupPrivilege 536 svchost.exe Token: SeRestorePrivilege 536 svchost.exe Token: SeBackupPrivilege 536 svchost.exe Token: SeRestorePrivilege 536 svchost.exe Token: SeBackupPrivilege 536 svchost.exe Token: SeRestorePrivilege 536 svchost.exe Token: SeBackupPrivilege 536 svchost.exe Token: SeRestorePrivilege 536 svchost.exe Token: SeBackupPrivilege 536 svchost.exe Token: SeRestorePrivilege 536 svchost.exe Token: SeBackupPrivilege 536 svchost.exe Token: SeRestorePrivilege 536 svchost.exe Token: SeBackupPrivilege 536 svchost.exe Token: SeRestorePrivilege 536 svchost.exe Token: SeBackupPrivilege 536 svchost.exe Token: SeRestorePrivilege 536 svchost.exe Token: SeBackupPrivilege 536 svchost.exe Token: SeRestorePrivilege 536 svchost.exe Token: SeBackupPrivilege 536 svchost.exe Token: SeRestorePrivilege 536 svchost.exe Token: SeBackupPrivilege 536 svchost.exe Token: SeRestorePrivilege 536 svchost.exe Token: SeBackupPrivilege 536 svchost.exe Token: SeRestorePrivilege 536 svchost.exe Token: SeBackupPrivilege 536 svchost.exe Token: SeRestorePrivilege 536 svchost.exe Token: SeBackupPrivilege 536 svchost.exe Token: SeRestorePrivilege 536 svchost.exe Token: SeBackupPrivilege 536 svchost.exe Token: SeRestorePrivilege 536 svchost.exe -
Suspicious use of WriteProcessMemory 24 IoCs
description pid Process procid_target PID 2392 wrote to memory of 3068 2392 26c1c219353c4221687b6f46a2bf3c02afc488bf4058f74b79b260174a5911a2.exe 30 PID 2392 wrote to memory of 3068 2392 26c1c219353c4221687b6f46a2bf3c02afc488bf4058f74b79b260174a5911a2.exe 30 PID 2392 wrote to memory of 3068 2392 26c1c219353c4221687b6f46a2bf3c02afc488bf4058f74b79b260174a5911a2.exe 30 PID 2392 wrote to memory of 3068 2392 26c1c219353c4221687b6f46a2bf3c02afc488bf4058f74b79b260174a5911a2.exe 30 PID 2392 wrote to memory of 3068 2392 26c1c219353c4221687b6f46a2bf3c02afc488bf4058f74b79b260174a5911a2.exe 30 PID 2392 wrote to memory of 3068 2392 26c1c219353c4221687b6f46a2bf3c02afc488bf4058f74b79b260174a5911a2.exe 30 PID 2392 wrote to memory of 3068 2392 26c1c219353c4221687b6f46a2bf3c02afc488bf4058f74b79b260174a5911a2.exe 30 PID 2392 wrote to memory of 3068 2392 26c1c219353c4221687b6f46a2bf3c02afc488bf4058f74b79b260174a5911a2.exe 30 PID 2392 wrote to memory of 3068 2392 26c1c219353c4221687b6f46a2bf3c02afc488bf4058f74b79b260174a5911a2.exe 30 PID 2392 wrote to memory of 3068 2392 26c1c219353c4221687b6f46a2bf3c02afc488bf4058f74b79b260174a5911a2.exe 30 PID 2392 wrote to memory of 536 2392 26c1c219353c4221687b6f46a2bf3c02afc488bf4058f74b79b260174a5911a2.exe 31 PID 2392 wrote to memory of 536 2392 26c1c219353c4221687b6f46a2bf3c02afc488bf4058f74b79b260174a5911a2.exe 31 PID 2392 wrote to memory of 536 2392 26c1c219353c4221687b6f46a2bf3c02afc488bf4058f74b79b260174a5911a2.exe 31 PID 2392 wrote to memory of 536 2392 26c1c219353c4221687b6f46a2bf3c02afc488bf4058f74b79b260174a5911a2.exe 31 PID 2392 wrote to memory of 536 2392 26c1c219353c4221687b6f46a2bf3c02afc488bf4058f74b79b260174a5911a2.exe 31 PID 2392 wrote to memory of 536 2392 26c1c219353c4221687b6f46a2bf3c02afc488bf4058f74b79b260174a5911a2.exe 31 PID 2392 wrote to memory of 536 2392 26c1c219353c4221687b6f46a2bf3c02afc488bf4058f74b79b260174a5911a2.exe 31 PID 2392 wrote to memory of 536 2392 26c1c219353c4221687b6f46a2bf3c02afc488bf4058f74b79b260174a5911a2.exe 31 PID 2392 wrote to memory of 536 2392 26c1c219353c4221687b6f46a2bf3c02afc488bf4058f74b79b260174a5911a2.exe 31 PID 2392 wrote to memory of 536 2392 26c1c219353c4221687b6f46a2bf3c02afc488bf4058f74b79b260174a5911a2.exe 31 PID 2392 wrote to memory of 2432 2392 26c1c219353c4221687b6f46a2bf3c02afc488bf4058f74b79b260174a5911a2.exe 33 PID 2392 wrote to memory of 2432 2392 26c1c219353c4221687b6f46a2bf3c02afc488bf4058f74b79b260174a5911a2.exe 33 PID 2392 wrote to memory of 2432 2392 26c1c219353c4221687b6f46a2bf3c02afc488bf4058f74b79b260174a5911a2.exe 33 PID 2392 wrote to memory of 2432 2392 26c1c219353c4221687b6f46a2bf3c02afc488bf4058f74b79b260174a5911a2.exe 33
Processes
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C:\Users\Admin\AppData\Local\Temp\26c1c219353c4221687b6f46a2bf3c02afc488bf4058f74b79b260174a5911a2.exe"C:\Users\Admin\AppData\Local\Temp\26c1c219353c4221687b6f46a2bf3c02afc488bf4058f74b79b260174a5911a2.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2392 -
C:\Windows\SysWOW64\svchost.exeC:\Windows\system32\svchost.exe2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:3068
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C:\Windows\SysWOW64\svchost.exeC:\Windows\system32\svchost.exe2⤵
- Modifies WinLogon for persistence
- UAC bypass
- Checks BIOS information in registry
- Drops startup file
- Impair Defenses: Safe Mode Boot
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:536
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C:\Users\Admin\AppData\Local\Temp\frqjxnufjyxpvjkv.exe"C:\Users\Admin\AppData\Local\Temp\frqjxnufjyxpvjkv.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2432
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Impair Defenses
2Disable or Modify Tools
1Safe Mode Boot
1Modify Registry
3Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
146KB
MD5b8939fb07684c56407d96bcf433f350f
SHA1b20029ce96c288595a1e12597b3360d13f76cf22
SHA25626c1c219353c4221687b6f46a2bf3c02afc488bf4058f74b79b260174a5911a2
SHA512ed9ea1774f7655f16852fc3dcf310f747a586288007b9e345c01a197f95f06904d8206e8c59a6e8ca9727a68f454aa470594716e9830dc61b9e18478b27d0245