Analysis
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max time kernel
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max time network
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platform
windows11-21h2_x64 -
resource
win11-20241007-en -
resource tags
arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system -
submitted
12-01-2025 03:25
Static task
static1
Behavioral task
behavioral1
Sample
resembleC2.exe
Resource
win10ltsc2021-20241211-en
General
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Target
resembleC2.exe
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Size
763KB
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MD5
f70fb0eacdba5672bd67ff9ad29e425b
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SHA1
35c7ad26473afb12c8b46dfb51f3e0d73b92a7eb
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SHA256
325ec7369a18af43c95815bacf830f5bcd1093436c25f67685226fe0d4812280
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SHA512
e93012796de946c4b009d9c68a539ea010d88952c11ddd0fc05d3d4ebe1657f16a7f75269e2c6075c12564f40752c7f4aec0c64583ffb46d06ec69431e5f6ff5
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SSDEEP
12288:wjB1GbyBRc8nAVCCpViLkSdIi/NvFFuHtHylX5mmYKlzQUG1R9qRst2hmKyL/mVD:wjB1myBRccwf/SdNFvFFu1yh5zlzY1RS
Malware Config
Signatures
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Detect Umbral payload 2 IoCs
resource yara_rule behavioral2/files/0x001c00000002ab3e-22.dat family_umbral behavioral2/memory/2412-31-0x000002180A920000-0x000002180A960000-memory.dmp family_umbral -
Umbral family
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pid Process 1068 powershell.exe 3144 powershell.exe 2380 powershell.exe 1656 powershell.exe -
Drops file in Drivers directory 1 IoCs
description ioc Process File opened for modification C:\Windows\System32\drivers\etc\hosts MoonHub.exe -
Executes dropped EXE 3 IoCs
pid Process 4048 resemble.exe 2412 MoonHub.exe 3556 AudioDriver.exe -
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Drops desktop.ini file(s) 2 IoCs
description ioc Process File created C:\Windows\assembly\Desktop.ini resemble.exe File opened for modification C:\Windows\assembly\Desktop.ini resemble.exe -
Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
flow ioc 1 discord.com 7 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 3 ip-api.com -
Drops file in Windows directory 3 IoCs
description ioc Process File opened for modification C:\Windows\assembly resemble.exe File created C:\Windows\assembly\Desktop.ini resemble.exe File opened for modification C:\Windows\assembly\Desktop.ini resemble.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 2 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 resemble.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language AudioDriver.exe -
System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs
Adversaries may check for Internet connectivity on compromised systems.
pid Process 5000 cmd.exe 392 PING.EXE -
Detects videocard installed 1 TTPs 1 IoCs
Uses WMIC.exe to determine videocard installed.
pid Process 4808 wmic.exe -
Modifies registry class 2 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2253712635-4068079004-3870069674-1000_Classes\Local Settings resembleC2.exe Key created \REGISTRY\USER\S-1-5-21-2253712635-4068079004-3870069674-1000_Classes\Local Settings OpenWith.exe -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 392 PING.EXE -
Suspicious behavior: EnumeratesProcesses 26 IoCs
pid Process 2412 MoonHub.exe 3556 AudioDriver.exe 3556 AudioDriver.exe 3556 AudioDriver.exe 1656 powershell.exe 1656 powershell.exe 1068 powershell.exe 1068 powershell.exe 3144 powershell.exe 3144 powershell.exe 2744 powershell.exe 2744 powershell.exe 2380 powershell.exe 2380 powershell.exe 3556 AudioDriver.exe 3556 AudioDriver.exe 3556 AudioDriver.exe 3556 AudioDriver.exe 3556 AudioDriver.exe 3556 AudioDriver.exe 3556 AudioDriver.exe 3556 AudioDriver.exe 3556 AudioDriver.exe 3556 AudioDriver.exe 3556 AudioDriver.exe 3556 AudioDriver.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeDebugPrivilege 2412 MoonHub.exe Token: SeIncreaseQuotaPrivilege 4004 wmic.exe Token: SeSecurityPrivilege 4004 wmic.exe Token: SeTakeOwnershipPrivilege 4004 wmic.exe Token: SeLoadDriverPrivilege 4004 wmic.exe Token: SeSystemProfilePrivilege 4004 wmic.exe Token: SeSystemtimePrivilege 4004 wmic.exe Token: SeProfSingleProcessPrivilege 4004 wmic.exe Token: SeIncBasePriorityPrivilege 4004 wmic.exe Token: SeCreatePagefilePrivilege 4004 wmic.exe Token: SeBackupPrivilege 4004 wmic.exe Token: SeRestorePrivilege 4004 wmic.exe Token: SeShutdownPrivilege 4004 wmic.exe Token: SeDebugPrivilege 4004 wmic.exe Token: SeSystemEnvironmentPrivilege 4004 wmic.exe Token: SeRemoteShutdownPrivilege 4004 wmic.exe Token: SeUndockPrivilege 4004 wmic.exe Token: SeManageVolumePrivilege 4004 wmic.exe Token: 33 4004 wmic.exe Token: 34 4004 wmic.exe Token: 35 4004 wmic.exe Token: 36 4004 wmic.exe Token: SeIncreaseQuotaPrivilege 4004 wmic.exe Token: SeSecurityPrivilege 4004 wmic.exe Token: SeTakeOwnershipPrivilege 4004 wmic.exe Token: SeLoadDriverPrivilege 4004 wmic.exe Token: SeSystemProfilePrivilege 4004 wmic.exe Token: SeSystemtimePrivilege 4004 wmic.exe Token: SeProfSingleProcessPrivilege 4004 wmic.exe Token: SeIncBasePriorityPrivilege 4004 wmic.exe Token: SeCreatePagefilePrivilege 4004 wmic.exe Token: SeBackupPrivilege 4004 wmic.exe Token: SeRestorePrivilege 4004 wmic.exe Token: SeShutdownPrivilege 4004 wmic.exe Token: SeDebugPrivilege 4004 wmic.exe Token: SeSystemEnvironmentPrivilege 4004 wmic.exe Token: SeRemoteShutdownPrivilege 4004 wmic.exe Token: SeUndockPrivilege 4004 wmic.exe Token: SeManageVolumePrivilege 4004 wmic.exe Token: 33 4004 wmic.exe Token: 34 4004 wmic.exe Token: 35 4004 wmic.exe Token: 36 4004 wmic.exe Token: SeDebugPrivilege 3556 AudioDriver.exe Token: SeDebugPrivilege 1656 powershell.exe Token: SeDebugPrivilege 1068 powershell.exe Token: SeDebugPrivilege 3144 powershell.exe Token: SeDebugPrivilege 2744 powershell.exe Token: SeIncreaseQuotaPrivilege 3712 wmic.exe Token: SeSecurityPrivilege 3712 wmic.exe Token: SeTakeOwnershipPrivilege 3712 wmic.exe Token: SeLoadDriverPrivilege 3712 wmic.exe Token: SeSystemProfilePrivilege 3712 wmic.exe Token: SeSystemtimePrivilege 3712 wmic.exe Token: SeProfSingleProcessPrivilege 3712 wmic.exe Token: SeIncBasePriorityPrivilege 3712 wmic.exe Token: SeCreatePagefilePrivilege 3712 wmic.exe Token: SeBackupPrivilege 3712 wmic.exe Token: SeRestorePrivilege 3712 wmic.exe Token: SeShutdownPrivilege 3712 wmic.exe Token: SeDebugPrivilege 3712 wmic.exe Token: SeSystemEnvironmentPrivilege 3712 wmic.exe Token: SeRemoteShutdownPrivilege 3712 wmic.exe Token: SeUndockPrivilege 3712 wmic.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 3556 AudioDriver.exe -
Suspicious use of SendNotifyMessage 1 IoCs
pid Process 3556 AudioDriver.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2764 OpenWith.exe -
Suspicious use of WriteProcessMemory 34 IoCs
description pid Process procid_target PID 1688 wrote to memory of 4048 1688 resembleC2.exe 77 PID 1688 wrote to memory of 4048 1688 resembleC2.exe 77 PID 1688 wrote to memory of 4048 1688 resembleC2.exe 77 PID 1688 wrote to memory of 2412 1688 resembleC2.exe 79 PID 1688 wrote to memory of 2412 1688 resembleC2.exe 79 PID 2412 wrote to memory of 4004 2412 MoonHub.exe 80 PID 2412 wrote to memory of 4004 2412 MoonHub.exe 80 PID 4048 wrote to memory of 3556 4048 resemble.exe 83 PID 4048 wrote to memory of 3556 4048 resemble.exe 83 PID 4048 wrote to memory of 3556 4048 resemble.exe 83 PID 2412 wrote to memory of 2824 2412 MoonHub.exe 84 PID 2412 wrote to memory of 2824 2412 MoonHub.exe 84 PID 2412 wrote to memory of 1656 2412 MoonHub.exe 86 PID 2412 wrote to memory of 1656 2412 MoonHub.exe 86 PID 2412 wrote to memory of 1068 2412 MoonHub.exe 88 PID 2412 wrote to memory of 1068 2412 MoonHub.exe 88 PID 2412 wrote to memory of 3144 2412 MoonHub.exe 90 PID 2412 wrote to memory of 3144 2412 MoonHub.exe 90 PID 2412 wrote to memory of 2744 2412 MoonHub.exe 92 PID 2412 wrote to memory of 2744 2412 MoonHub.exe 92 PID 2412 wrote to memory of 3712 2412 MoonHub.exe 94 PID 2412 wrote to memory of 3712 2412 MoonHub.exe 94 PID 2412 wrote to memory of 2976 2412 MoonHub.exe 96 PID 2412 wrote to memory of 2976 2412 MoonHub.exe 96 PID 2412 wrote to memory of 3600 2412 MoonHub.exe 98 PID 2412 wrote to memory of 3600 2412 MoonHub.exe 98 PID 2412 wrote to memory of 2380 2412 MoonHub.exe 100 PID 2412 wrote to memory of 2380 2412 MoonHub.exe 100 PID 2412 wrote to memory of 4808 2412 MoonHub.exe 102 PID 2412 wrote to memory of 4808 2412 MoonHub.exe 102 PID 2412 wrote to memory of 5000 2412 MoonHub.exe 104 PID 2412 wrote to memory of 5000 2412 MoonHub.exe 104 PID 5000 wrote to memory of 392 5000 cmd.exe 106 PID 5000 wrote to memory of 392 5000 cmd.exe 106 -
Views/modifies file attributes 1 TTPs 1 IoCs
pid Process 2824 attrib.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\resembleC2.exe"C:\Users\Admin\AppData\Local\Temp\resembleC2.exe"1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1688 -
C:\Users\Admin\AppData\Local\Temp\resemble.exe"C:\Users\Admin\AppData\Local\Temp\resemble.exe"2⤵
- Executes dropped EXE
- Drops desktop.ini file(s)
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4048 -
C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe"C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:3556
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C:\Users\Admin\AppData\Local\Temp\MoonHub.exe"C:\Users\Admin\AppData\Local\Temp\MoonHub.exe"2⤵
- Drops file in Drivers directory
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2412 -
C:\Windows\System32\Wbem\wmic.exe"wmic.exe" csproduct get uuid3⤵
- Suspicious use of AdjustPrivilegeToken
PID:4004
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C:\Windows\SYSTEM32\attrib.exe"attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\MoonHub.exe"3⤵
- Views/modifies file attributes
PID:2824
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\MoonHub.exe'3⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1656
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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 23⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1068
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell.exe" Get-ItemPropertyValue -Path HKCU:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY3⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3144
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell.exe" Get-ItemPropertyValue -Path HKLN:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2744
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C:\Windows\System32\Wbem\wmic.exe"wmic.exe" os get Caption3⤵
- Suspicious use of AdjustPrivilegeToken
PID:3712
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C:\Windows\System32\Wbem\wmic.exe"wmic.exe" computersystem get totalphysicalmemory3⤵PID:2976
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C:\Windows\System32\Wbem\wmic.exe"wmic.exe" csproduct get uuid3⤵PID:3600
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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_IDENTIFIER3⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
PID:2380
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C:\Windows\System32\Wbem\wmic.exe"wmic" path win32_VideoController get name3⤵
- Detects videocard installed
PID:4808
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C:\Windows\SYSTEM32\cmd.exe"cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\MoonHub.exe" && pause3⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:5000 -
C:\Windows\system32\PING.EXEping localhost4⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:392
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C:\Windows\system32\OpenWith.exeC:\Windows\system32\OpenWith.exe -Embedding1⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
PID:2764
Network
MITRE ATT&CK Enterprise v15
Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
2KB
MD5627073ee3ca9676911bee35548eff2b8
SHA14c4b68c65e2cab9864b51167d710aa29ebdcff2e
SHA25685b280a39fc31ba1e15fb06102a05b8405ff3b82feb181d4170f04e466dd647c
SHA5123c5f6c03e253b83c57e8d6f0334187dbdcdf4fa549eecd36cbc1322dca6d3ca891dc6a019c49ec2eafb88f82d0434299c31e4dfaab123acb42e0546218f311fb
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Filesize
1KB
MD57332074ae2b01262736b6fbd9e100dac
SHA122f992165065107cc9417fa4117240d84414a13c
SHA256baea84fda6c1f13090b8cbd91c920848946f10ce155ef31a1df4cd453ee7e4aa
SHA5124ae6f0e012c31ac1fc2ff4a8877ce2b4667c45b6e651de798318a39a2b6fd39a6f72dffa8b0b89b7a045a27d724d195656faa25a9fec79b22f37ddebb5d22da2
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Filesize
1KB
MD59b2acf080a432c89852a69291f7fe29e
SHA186df0be9e718ae80e6e6064f52b7d60a98f2725d
SHA256126f1d64010a2da8956f4deb3980f19ec01d48693054efd7b8b38ff62209b927
SHA512a4fd1da4c1a9c8e072f66516da5dae12682eea44473b43d18ae0999b004e19ddbc2294be5d1d3b622a22189e9176a42a5de76229143d30c1649ba7116d17aa27
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Filesize
944B
MD51a9fa92a4f2e2ec9e244d43a6a4f8fb9
SHA19910190edfaccece1dfcc1d92e357772f5dae8f7
SHA2560ee052d5333fd5fd86bc84856fec98e045f077a7ac8051651bf7c521b9706888
SHA5125d2361476fa22200e6f83883efe7dcb8c3fe7dae8d56e04e28a36e9ae1270c327b6aa161d92b239593da7661289d002c574446ecfd6bd19928209aae25e3ef64
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Filesize
948B
MD5441a842138038e6385e430a90d7ea608
SHA17b3712d2cdd37e10ee9b3994131ee5175e920f01
SHA25647592f3324179912d3bdba336b9e75568c2c5f1a9fb37c1ba9f0db9df822164c
SHA5129dbddc3216f2a132ae3961b3aeac2c5b8828dcc9292f6c5bf1171c47453aa8687f92658818d771413492c0ea565e9ede17b9c03e427af9dc2ac21a78369a6666
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Filesize
231KB
MD5f70b5e56a09af292d4e909c547f9c8c0
SHA1577883bdbe8dc9582e15e7a1212b1fe432bafce3
SHA2568fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067de
SHA512e54ccb56aa6473abd3530493933d5164f2dff02076e0f03443382f02d177a52e318d8d0f432e6a3fb5620eaffd09f2dbf6ccbf9698ba149b149c594fa162d879
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
845KB
MD556edb111575113d40af0f1c028dcb315
SHA1018a7abc977ba73e2f66f1e7bf041191089c100c
SHA256c7b542ac39e8e5a14ef0cd70dc3bb505cbdbef4d737c7cb310353642ca914235
SHA5122c87ad1db2ce3745426eb47e76b855124e97747d895d8f5b90adf9018a03c6059dc96537429cf03e2d9af51ca49b751c418820d7a27557e33b8ef54f7305c406