Analysis
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max time kernel
120s -
max time network
118s -
platform
windows7_x64 -
resource
win7-20241010-en -
resource tags
arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system -
submitted
25-12-2024 17:12
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
93ece3ae41e3e46b4ee761c03413d0a201ea1dba909528bd11040dc470c74a0fN.exe
Resource
win7-20241010-en
windows7-x64
16 signatures
120 seconds
Behavioral task
behavioral2
Sample
93ece3ae41e3e46b4ee761c03413d0a201ea1dba909528bd11040dc470c74a0fN.exe
Resource
win10v2004-20241007-en
windows10-2004-x64
3 signatures
120 seconds
General
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Target
93ece3ae41e3e46b4ee761c03413d0a201ea1dba909528bd11040dc470c74a0fN.exe
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Size
145KB
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MD5
20742acbbf24266c69fd14d1ea50cf90
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SHA1
c39ec0575ca80ec520223c8669b228bdddb1e975
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SHA256
93ece3ae41e3e46b4ee761c03413d0a201ea1dba909528bd11040dc470c74a0f
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SHA512
9efbab9fe2ab57fe14a7195453e556bec98a5a4ac11f15058364a20cbf37fadfa4391f3ced64e3646aa23dc1525ca002ca4e188b887058931391b6150ba65bd0
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SSDEEP
3072:JBL1t2b4DEDXUTKxGhqOIx4J2vNbGfvGnd3gW5ZM4/uZXqxue/:yED92UhGNdndPZMTZXqxD/
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\\nawgovsr\\vgosyvyi.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 created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\vgosyvyi.exe svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\vgosyvyi.exe svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 1640 nljqbxbrijcpskpf.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 1700 93ece3ae41e3e46b4ee761c03413d0a201ea1dba909528bd11040dc470c74a0fN.exe 1700 93ece3ae41e3e46b4ee761c03413d0a201ea1dba909528bd11040dc470c74a0fN.exe 1700 93ece3ae41e3e46b4ee761c03413d0a201ea1dba909528bd11040dc470c74a0fN.exe 1700 93ece3ae41e3e46b4ee761c03413d0a201ea1dba909528bd11040dc470c74a0fN.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Run\VgoSyvyi = "C:\\Users\\Admin\\AppData\\Local\\nawgovsr\\vgosyvyi.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 93ece3ae41e3e46b4ee761c03413d0a201ea1dba909528bd11040dc470c74a0fN.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 nljqbxbrijcpskpf.exe -
Suspicious behavior: EnumeratesProcesses 60 IoCs
pid Process 2832 svchost.exe 2832 svchost.exe 2832 svchost.exe 2832 svchost.exe 2832 svchost.exe 2832 svchost.exe 2832 svchost.exe 2832 svchost.exe 2832 svchost.exe 2832 svchost.exe 2832 svchost.exe 2832 svchost.exe 2832 svchost.exe 2832 svchost.exe 2832 svchost.exe 2832 svchost.exe 2832 svchost.exe 2832 svchost.exe 2832 svchost.exe 2832 svchost.exe 2832 svchost.exe 2832 svchost.exe 2832 svchost.exe 2832 svchost.exe 2832 svchost.exe 2832 svchost.exe 2832 svchost.exe 2832 svchost.exe 2832 svchost.exe 2832 svchost.exe 2832 svchost.exe 2832 svchost.exe 2832 svchost.exe 2832 svchost.exe 2832 svchost.exe 2832 svchost.exe 2832 svchost.exe 2832 svchost.exe 2832 svchost.exe 2832 svchost.exe 2832 svchost.exe 2832 svchost.exe 2832 svchost.exe 2832 svchost.exe 2832 svchost.exe 2832 svchost.exe 2832 svchost.exe 2832 svchost.exe 2832 svchost.exe 2832 svchost.exe 2832 svchost.exe 2832 svchost.exe 2832 svchost.exe 2832 svchost.exe 2832 svchost.exe 2832 svchost.exe 2832 svchost.exe 2832 svchost.exe 2832 svchost.exe 2832 svchost.exe -
Suspicious behavior: LoadsDriver 1 IoCs
pid Process 476 Process not Found -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeSecurityPrivilege 1700 93ece3ae41e3e46b4ee761c03413d0a201ea1dba909528bd11040dc470c74a0fN.exe Token: SeDebugPrivilege 1700 93ece3ae41e3e46b4ee761c03413d0a201ea1dba909528bd11040dc470c74a0fN.exe Token: SeSecurityPrivilege 2140 svchost.exe Token: SeSecurityPrivilege 2832 svchost.exe Token: SeDebugPrivilege 2832 svchost.exe Token: SeRestorePrivilege 2832 svchost.exe Token: SeBackupPrivilege 2832 svchost.exe Token: SeRestorePrivilege 2832 svchost.exe Token: SeBackupPrivilege 2832 svchost.exe Token: SeRestorePrivilege 2832 svchost.exe Token: SeBackupPrivilege 2832 svchost.exe Token: SeRestorePrivilege 2832 svchost.exe Token: SeBackupPrivilege 2832 svchost.exe Token: SeRestorePrivilege 2832 svchost.exe Token: SeBackupPrivilege 2832 svchost.exe Token: SeRestorePrivilege 2832 svchost.exe Token: SeBackupPrivilege 2832 svchost.exe Token: SeSecurityPrivilege 1640 nljqbxbrijcpskpf.exe Token: SeLoadDriverPrivilege 1640 nljqbxbrijcpskpf.exe Token: SeRestorePrivilege 2832 svchost.exe Token: SeBackupPrivilege 2832 svchost.exe Token: SeRestorePrivilege 2832 svchost.exe Token: SeBackupPrivilege 2832 svchost.exe Token: SeRestorePrivilege 2832 svchost.exe Token: SeBackupPrivilege 2832 svchost.exe Token: SeRestorePrivilege 2832 svchost.exe Token: SeBackupPrivilege 2832 svchost.exe Token: SeRestorePrivilege 2832 svchost.exe Token: SeBackupPrivilege 2832 svchost.exe Token: SeRestorePrivilege 2832 svchost.exe Token: SeBackupPrivilege 2832 svchost.exe Token: SeRestorePrivilege 2832 svchost.exe Token: SeBackupPrivilege 2832 svchost.exe Token: SeRestorePrivilege 2832 svchost.exe Token: SeBackupPrivilege 2832 svchost.exe Token: SeRestorePrivilege 2832 svchost.exe Token: SeBackupPrivilege 2832 svchost.exe Token: SeRestorePrivilege 2832 svchost.exe Token: SeBackupPrivilege 2832 svchost.exe Token: SeRestorePrivilege 2832 svchost.exe Token: SeBackupPrivilege 2832 svchost.exe Token: SeRestorePrivilege 2832 svchost.exe Token: SeBackupPrivilege 2832 svchost.exe Token: SeRestorePrivilege 2832 svchost.exe Token: SeBackupPrivilege 2832 svchost.exe Token: SeRestorePrivilege 2832 svchost.exe Token: SeBackupPrivilege 2832 svchost.exe Token: SeRestorePrivilege 2832 svchost.exe Token: SeBackupPrivilege 2832 svchost.exe Token: SeRestorePrivilege 2832 svchost.exe Token: SeBackupPrivilege 2832 svchost.exe Token: SeRestorePrivilege 2832 svchost.exe Token: SeBackupPrivilege 2832 svchost.exe Token: SeRestorePrivilege 2832 svchost.exe Token: SeBackupPrivilege 2832 svchost.exe Token: SeRestorePrivilege 2832 svchost.exe Token: SeBackupPrivilege 2832 svchost.exe Token: SeRestorePrivilege 2832 svchost.exe Token: SeBackupPrivilege 2832 svchost.exe Token: SeRestorePrivilege 2832 svchost.exe Token: SeBackupPrivilege 2832 svchost.exe Token: SeRestorePrivilege 2832 svchost.exe Token: SeBackupPrivilege 2832 svchost.exe Token: SeRestorePrivilege 2832 svchost.exe -
Suspicious use of WriteProcessMemory 24 IoCs
description pid Process procid_target PID 1700 wrote to memory of 2140 1700 93ece3ae41e3e46b4ee761c03413d0a201ea1dba909528bd11040dc470c74a0fN.exe 28 PID 1700 wrote to memory of 2140 1700 93ece3ae41e3e46b4ee761c03413d0a201ea1dba909528bd11040dc470c74a0fN.exe 28 PID 1700 wrote to memory of 2140 1700 93ece3ae41e3e46b4ee761c03413d0a201ea1dba909528bd11040dc470c74a0fN.exe 28 PID 1700 wrote to memory of 2140 1700 93ece3ae41e3e46b4ee761c03413d0a201ea1dba909528bd11040dc470c74a0fN.exe 28 PID 1700 wrote to memory of 2140 1700 93ece3ae41e3e46b4ee761c03413d0a201ea1dba909528bd11040dc470c74a0fN.exe 28 PID 1700 wrote to memory of 2140 1700 93ece3ae41e3e46b4ee761c03413d0a201ea1dba909528bd11040dc470c74a0fN.exe 28 PID 1700 wrote to memory of 2140 1700 93ece3ae41e3e46b4ee761c03413d0a201ea1dba909528bd11040dc470c74a0fN.exe 28 PID 1700 wrote to memory of 2140 1700 93ece3ae41e3e46b4ee761c03413d0a201ea1dba909528bd11040dc470c74a0fN.exe 28 PID 1700 wrote to memory of 2140 1700 93ece3ae41e3e46b4ee761c03413d0a201ea1dba909528bd11040dc470c74a0fN.exe 28 PID 1700 wrote to memory of 2140 1700 93ece3ae41e3e46b4ee761c03413d0a201ea1dba909528bd11040dc470c74a0fN.exe 28 PID 1700 wrote to memory of 2832 1700 93ece3ae41e3e46b4ee761c03413d0a201ea1dba909528bd11040dc470c74a0fN.exe 29 PID 1700 wrote to memory of 2832 1700 93ece3ae41e3e46b4ee761c03413d0a201ea1dba909528bd11040dc470c74a0fN.exe 29 PID 1700 wrote to memory of 2832 1700 93ece3ae41e3e46b4ee761c03413d0a201ea1dba909528bd11040dc470c74a0fN.exe 29 PID 1700 wrote to memory of 2832 1700 93ece3ae41e3e46b4ee761c03413d0a201ea1dba909528bd11040dc470c74a0fN.exe 29 PID 1700 wrote to memory of 2832 1700 93ece3ae41e3e46b4ee761c03413d0a201ea1dba909528bd11040dc470c74a0fN.exe 29 PID 1700 wrote to memory of 2832 1700 93ece3ae41e3e46b4ee761c03413d0a201ea1dba909528bd11040dc470c74a0fN.exe 29 PID 1700 wrote to memory of 2832 1700 93ece3ae41e3e46b4ee761c03413d0a201ea1dba909528bd11040dc470c74a0fN.exe 29 PID 1700 wrote to memory of 2832 1700 93ece3ae41e3e46b4ee761c03413d0a201ea1dba909528bd11040dc470c74a0fN.exe 29 PID 1700 wrote to memory of 2832 1700 93ece3ae41e3e46b4ee761c03413d0a201ea1dba909528bd11040dc470c74a0fN.exe 29 PID 1700 wrote to memory of 2832 1700 93ece3ae41e3e46b4ee761c03413d0a201ea1dba909528bd11040dc470c74a0fN.exe 29 PID 1700 wrote to memory of 1640 1700 93ece3ae41e3e46b4ee761c03413d0a201ea1dba909528bd11040dc470c74a0fN.exe 30 PID 1700 wrote to memory of 1640 1700 93ece3ae41e3e46b4ee761c03413d0a201ea1dba909528bd11040dc470c74a0fN.exe 30 PID 1700 wrote to memory of 1640 1700 93ece3ae41e3e46b4ee761c03413d0a201ea1dba909528bd11040dc470c74a0fN.exe 30 PID 1700 wrote to memory of 1640 1700 93ece3ae41e3e46b4ee761c03413d0a201ea1dba909528bd11040dc470c74a0fN.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\93ece3ae41e3e46b4ee761c03413d0a201ea1dba909528bd11040dc470c74a0fN.exe"C:\Users\Admin\AppData\Local\Temp\93ece3ae41e3e46b4ee761c03413d0a201ea1dba909528bd11040dc470c74a0fN.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1700 -
C:\Windows\SysWOW64\svchost.exeC:\Windows\system32\svchost.exe2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2140
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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:2832
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C:\Users\Admin\AppData\Local\Temp\nljqbxbrijcpskpf.exe"C:\Users\Admin\AppData\Local\Temp\nljqbxbrijcpskpf.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:1640
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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
145KB
MD520742acbbf24266c69fd14d1ea50cf90
SHA1c39ec0575ca80ec520223c8669b228bdddb1e975
SHA25693ece3ae41e3e46b4ee761c03413d0a201ea1dba909528bd11040dc470c74a0f
SHA5129efbab9fe2ab57fe14a7195453e556bec98a5a4ac11f15058364a20cbf37fadfa4391f3ced64e3646aa23dc1525ca002ca4e188b887058931391b6150ba65bd0