Analysis
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max time kernel
29s -
max time network
22s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
01-03-2024 10:53
Behavioral task
behavioral1
Sample
fortnite installer.exe
Resource
win7-20240221-en
General
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Target
fortnite installer.exe
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Size
230KB
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MD5
289b67e48da10ab68939056c3cd8bb2b
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SHA1
2b4665f3f61098c4ceec9208a01e75ac7e4b1d3d
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SHA256
545757791f0b6759a9da98687651c1ad9f32f86d8f3e7f5d163d2ebba8f4bc3e
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SHA512
c2c63302ebfc08c2be9e56174c2adc0b78a155d8d4954fc96532e37c459477cf896f3ab1ff60df181cd541c6cefffcd67f707ef07bde8b1474b6c3131034ff5c
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SSDEEP
6144:dloZM9rIkd8g+EtXHkv/iD4otP77Byal4gRj++7okb8e1mCi:/oZOL+EP8otP77Byal4gRj++7x4
Malware Config
Signatures
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Detect Umbral payload 1 IoCs
resource yara_rule behavioral2/memory/2300-0-0x000001628C220000-0x000001628C260000-memory.dmp family_umbral -
Drops file in Drivers directory 1 IoCs
description ioc Process File opened for modification C:\Windows\System32\drivers\etc\hosts fortnite installer.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
flow ioc 26 discord.com 27 discord.com -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 23 ip-api.com -
Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000 taskmgr.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\Properties\{b725f130-47ef-101a-a5f1-02608c9eebac}\000A taskmgr.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\FriendlyName taskmgr.exe -
Detects videocard installed 1 TTPs 1 IoCs
Uses WMIC.exe to determine videocard installed.
pid Process 4604 wmic.exe -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\Software\Microsoft\Internet Explorer\TypedURLs taskmgr.exe -
Modifies registry class 5 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000_Classes\Local Settings taskmgr.exe Key created \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell taskmgr.exe Key created \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU taskmgr.exe Set value (data) \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots taskmgr.exe Set value (data) \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff taskmgr.exe -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 2888 PING.EXE -
Suspicious behavior: EnumeratesProcesses 35 IoCs
pid Process 636 powershell.exe 636 powershell.exe 1656 powershell.exe 1656 powershell.exe 1592 taskmgr.exe 1592 taskmgr.exe 2196 powershell.exe 2196 powershell.exe 1592 taskmgr.exe 1592 taskmgr.exe 856 powershell.exe 856 powershell.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 4388 powershell.exe 4388 powershell.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeDebugPrivilege 2300 fortnite installer.exe Token: SeDebugPrivilege 636 powershell.exe Token: SeDebugPrivilege 1656 powershell.exe Token: SeDebugPrivilege 1592 taskmgr.exe Token: SeSystemProfilePrivilege 1592 taskmgr.exe Token: SeCreateGlobalPrivilege 1592 taskmgr.exe Token: SeDebugPrivilege 2196 powershell.exe Token: SeDebugPrivilege 856 powershell.exe Token: SeIncreaseQuotaPrivilege 4932 wmic.exe Token: SeSecurityPrivilege 4932 wmic.exe Token: SeTakeOwnershipPrivilege 4932 wmic.exe Token: SeLoadDriverPrivilege 4932 wmic.exe Token: SeSystemProfilePrivilege 4932 wmic.exe Token: SeSystemtimePrivilege 4932 wmic.exe Token: SeProfSingleProcessPrivilege 4932 wmic.exe Token: SeIncBasePriorityPrivilege 4932 wmic.exe Token: SeCreatePagefilePrivilege 4932 wmic.exe Token: SeBackupPrivilege 4932 wmic.exe Token: SeRestorePrivilege 4932 wmic.exe Token: SeShutdownPrivilege 4932 wmic.exe Token: SeDebugPrivilege 4932 wmic.exe Token: SeSystemEnvironmentPrivilege 4932 wmic.exe Token: SeRemoteShutdownPrivilege 4932 wmic.exe Token: SeUndockPrivilege 4932 wmic.exe Token: SeManageVolumePrivilege 4932 wmic.exe Token: 33 4932 wmic.exe Token: 34 4932 wmic.exe Token: 35 4932 wmic.exe Token: 36 4932 wmic.exe Token: SeIncreaseQuotaPrivilege 4932 wmic.exe Token: SeSecurityPrivilege 4932 wmic.exe Token: SeTakeOwnershipPrivilege 4932 wmic.exe Token: SeLoadDriverPrivilege 4932 wmic.exe Token: SeSystemProfilePrivilege 4932 wmic.exe Token: SeSystemtimePrivilege 4932 wmic.exe Token: SeProfSingleProcessPrivilege 4932 wmic.exe Token: SeIncBasePriorityPrivilege 4932 wmic.exe Token: SeCreatePagefilePrivilege 4932 wmic.exe Token: SeBackupPrivilege 4932 wmic.exe Token: SeRestorePrivilege 4932 wmic.exe Token: SeShutdownPrivilege 4932 wmic.exe Token: SeDebugPrivilege 4932 wmic.exe Token: SeSystemEnvironmentPrivilege 4932 wmic.exe Token: SeRemoteShutdownPrivilege 4932 wmic.exe Token: SeUndockPrivilege 4932 wmic.exe Token: SeManageVolumePrivilege 4932 wmic.exe Token: 33 4932 wmic.exe Token: 34 4932 wmic.exe Token: 35 4932 wmic.exe Token: 36 4932 wmic.exe Token: SeIncreaseQuotaPrivilege 3524 wmic.exe Token: SeSecurityPrivilege 3524 wmic.exe Token: SeTakeOwnershipPrivilege 3524 wmic.exe Token: SeLoadDriverPrivilege 3524 wmic.exe Token: SeSystemProfilePrivilege 3524 wmic.exe Token: SeSystemtimePrivilege 3524 wmic.exe Token: SeProfSingleProcessPrivilege 3524 wmic.exe Token: SeIncBasePriorityPrivilege 3524 wmic.exe Token: SeCreatePagefilePrivilege 3524 wmic.exe Token: SeBackupPrivilege 3524 wmic.exe Token: SeRestorePrivilege 3524 wmic.exe Token: SeShutdownPrivilege 3524 wmic.exe Token: SeDebugPrivilege 3524 wmic.exe Token: SeSystemEnvironmentPrivilege 3524 wmic.exe -
Suspicious use of FindShellTrayWindow 37 IoCs
pid Process 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe -
Suspicious use of SendNotifyMessage 36 IoCs
pid Process 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe 1592 taskmgr.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1592 taskmgr.exe -
Suspicious use of WriteProcessMemory 24 IoCs
description pid Process procid_target PID 2300 wrote to memory of 3892 2300 fortnite installer.exe 86 PID 2300 wrote to memory of 3892 2300 fortnite installer.exe 86 PID 2300 wrote to memory of 636 2300 fortnite installer.exe 88 PID 2300 wrote to memory of 636 2300 fortnite installer.exe 88 PID 2300 wrote to memory of 1656 2300 fortnite installer.exe 92 PID 2300 wrote to memory of 1656 2300 fortnite installer.exe 92 PID 2300 wrote to memory of 2196 2300 fortnite installer.exe 96 PID 2300 wrote to memory of 2196 2300 fortnite installer.exe 96 PID 2300 wrote to memory of 856 2300 fortnite installer.exe 98 PID 2300 wrote to memory of 856 2300 fortnite installer.exe 98 PID 2300 wrote to memory of 4932 2300 fortnite installer.exe 100 PID 2300 wrote to memory of 4932 2300 fortnite installer.exe 100 PID 2300 wrote to memory of 3524 2300 fortnite installer.exe 103 PID 2300 wrote to memory of 3524 2300 fortnite installer.exe 103 PID 2300 wrote to memory of 1620 2300 fortnite installer.exe 105 PID 2300 wrote to memory of 1620 2300 fortnite installer.exe 105 PID 2300 wrote to memory of 4388 2300 fortnite installer.exe 107 PID 2300 wrote to memory of 4388 2300 fortnite installer.exe 107 PID 2300 wrote to memory of 4604 2300 fortnite installer.exe 109 PID 2300 wrote to memory of 4604 2300 fortnite installer.exe 109 PID 2300 wrote to memory of 3672 2300 fortnite installer.exe 111 PID 2300 wrote to memory of 3672 2300 fortnite installer.exe 111 PID 3672 wrote to memory of 2888 3672 cmd.exe 113 PID 3672 wrote to memory of 2888 3672 cmd.exe 113 -
Views/modifies file attributes 1 TTPs 1 IoCs
pid Process 3892 attrib.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\fortnite installer.exe"C:\Users\Admin\AppData\Local\Temp\fortnite installer.exe"1⤵
- Drops file in Drivers directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2300 -
C:\Windows\SYSTEM32\attrib.exe"attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\fortnite installer.exe"2⤵
- Views/modifies file attributes
PID:3892
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\fortnite installer.exe'2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:636
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell.exe" Set-MpPreference -DisableIntrusionPreventionSystem $true -DisableIOAVProtection $true -DisableRealtimeMonitoring $true -DisableScriptScanning $true -EnableControlledFolderAccess Disabled -EnableNetworkProtection AuditMode -Force -MAPSReporting Disabled -SubmitSamplesConsent NeverSend && powershell Set-MpPreference -SubmitSamplesConsent 22⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1656
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell.exe" Get-ItemPropertyValue -Path HKCU:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2196
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell.exe" Get-ItemPropertyValue -Path HKLN:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:856
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C:\Windows\System32\Wbem\wmic.exe"wmic.exe" os get Caption2⤵
- Suspicious use of AdjustPrivilegeToken
PID:4932
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C:\Windows\System32\Wbem\wmic.exe"wmic.exe" computersystem get totalphysicalmemory2⤵
- Suspicious use of AdjustPrivilegeToken
PID:3524
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C:\Windows\System32\Wbem\wmic.exe"wmic.exe" csproduct get uuid2⤵PID:1620
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell.exe" Get-ItemPropertyValue -Path 'HKLM:System\CurrentControlSet\Control\Session Manager\Environment' -Name PROCESSOR_IDENTIFIER2⤵
- Suspicious behavior: EnumeratesProcesses
PID:4388
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C:\Windows\System32\Wbem\wmic.exe"wmic" path win32_VideoController get name2⤵
- Detects videocard installed
PID:4604
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C:\Windows\SYSTEM32\cmd.exe"cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\fortnite installer.exe" && pause2⤵
- Suspicious use of WriteProcessMemory
PID:3672 -
C:\Windows\system32\PING.EXEping localhost3⤵
- Runs ping.exe
PID:2888
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C:\Windows\system32\taskmgr.exe"C:\Windows\system32\taskmgr.exe" /41⤵
- Checks SCSI registry key(s)
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
PID:1592
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C:\Windows\System32\rundll32.exeC:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding1⤵PID:4744
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
2KB
MD5d85ba6ff808d9e5444a4b369f5bc2730
SHA131aa9d96590fff6981b315e0b391b575e4c0804a
SHA25684739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f
SHA5128c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249
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Filesize
1KB
MD57511c81925750deb7ad1b9b80eea8a8d
SHA16ea759b3cbd243ae11435c6d6c5ced185eb01f49
SHA2565b49723a7773f2fe1f6093236e7b9b2c546f0873635d02346cb39535811234fa
SHA5125f7e69316d39525d137a7a833f8c746ceef8f1b2295348393fb3244cca8b962fbaad0f7da49da453fe97e2c49b1f41f06138111ac5ff97fdc33c300350ec3a1b
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Filesize
944B
MD5cadef9abd087803c630df65264a6c81c
SHA1babbf3636c347c8727c35f3eef2ee643dbcc4bd2
SHA256cce65b73cdfe9304bcd5207913e8b60fb69faa20cd3b684f2b0343b755b99438
SHA5127278aa87124abb382d9024a645e881e7b7cf1b84e8894943b36e018dbf0399e6858392f77980b599fa5488e2e21bf757a0702fe6419417edac93b68e0c2ec085
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Filesize
948B
MD528ef595a6cc9f47b8eccb22d4ed50d6c
SHA14335de707324b15eba79017938c3da2752d3eea5
SHA2563abd14d4fe7b5697b2fa84993e7183f4fd2580be5b4e5150da15ddda5a9560b9
SHA512687b7849faa62a4dabc240b573afa163f0cda9a80be61cebe28ef1461777744d73b465ac92d065093228068540846e79c899445057f5b906f9b9fa9868132208
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Filesize
1KB
MD5b0a78e60bfb279d18fd3d6e7a67411f5
SHA19344fe3654a14bc66afb9dc6ea215fabfbe5c906
SHA256a28890c82033d3deaf5770ecd1b0239c77321acc93704b1d4b1e167b91e30aeb
SHA5129548be23bec645cd705482f78d43b63659e38cf879c34f7071f42fd86ee02039379a5e92fbe0f1c74c12aaebabdd8002f57eba111d3e855cbd0c89a110e346f2
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82