Analysis
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max time kernel
93s -
max time network
142s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
23-01-2025 04:21
Behavioral task
behavioral1
Sample
CorruptX1.3.exe
Resource
win7-20240903-en
General
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Target
CorruptX1.3.exe
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Size
495KB
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MD5
c57206c732c6cfaa8a4de6495732c8de
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SHA1
eb4127b4a20b05a3db766b3c953f0e12eb3070e9
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SHA256
0465cfcd8ec390d5d4e321ca1609ee70be881b906754cb5e783201114d922fcf
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SHA512
f1205d7c5daaa6b38ec121200875c8355857252ad4d474ce629c8584e73933e050e4f74c968617908044b9e819bc099dab8866e4f065acd4aa0b203001d1a6c9
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SSDEEP
6144:vloZM+rIkd8g+EtXHkv/iD4cGiqU69VeGbGkFZw9Xb8e1mqe6i:NoZtL+EP8cGiqU69VeGbGkFZwBLS
Malware Config
Signatures
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Detect Umbral payload 1 IoCs
resource yara_rule behavioral2/memory/3604-1-0x000001BCFED90000-0x000001BCFEE12000-memory.dmp family_umbral -
Umbral family
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Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
pid Process 2020 powershell.exe 5060 powershell.exe 3212 powershell.exe 1280 powershell.exe -
Drops file in Drivers directory 1 IoCs
description ioc Process File opened for modification C:\Windows\System32\drivers\etc\hosts CorruptX1.3.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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Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
flow ioc 22 discord.com 23 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 836 cmd.exe 2664 PING.EXE -
Detects videocard installed 1 TTPs 1 IoCs
Uses WMIC.exe to determine videocard installed.
pid Process 4568 wmic.exe -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 2664 PING.EXE -
Suspicious behavior: EnumeratesProcesses 11 IoCs
pid Process 3604 CorruptX1.3.exe 2020 powershell.exe 2020 powershell.exe 5060 powershell.exe 5060 powershell.exe 3212 powershell.exe 3212 powershell.exe 3528 powershell.exe 3528 powershell.exe 1280 powershell.exe 1280 powershell.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeDebugPrivilege 3604 CorruptX1.3.exe Token: SeIncreaseQuotaPrivilege 2776 wmic.exe Token: SeSecurityPrivilege 2776 wmic.exe Token: SeTakeOwnershipPrivilege 2776 wmic.exe Token: SeLoadDriverPrivilege 2776 wmic.exe Token: SeSystemProfilePrivilege 2776 wmic.exe Token: SeSystemtimePrivilege 2776 wmic.exe Token: SeProfSingleProcessPrivilege 2776 wmic.exe Token: SeIncBasePriorityPrivilege 2776 wmic.exe Token: SeCreatePagefilePrivilege 2776 wmic.exe Token: SeBackupPrivilege 2776 wmic.exe Token: SeRestorePrivilege 2776 wmic.exe Token: SeShutdownPrivilege 2776 wmic.exe Token: SeDebugPrivilege 2776 wmic.exe Token: SeSystemEnvironmentPrivilege 2776 wmic.exe Token: SeRemoteShutdownPrivilege 2776 wmic.exe Token: SeUndockPrivilege 2776 wmic.exe Token: SeManageVolumePrivilege 2776 wmic.exe Token: 33 2776 wmic.exe Token: 34 2776 wmic.exe Token: 35 2776 wmic.exe Token: 36 2776 wmic.exe Token: SeIncreaseQuotaPrivilege 2776 wmic.exe Token: SeSecurityPrivilege 2776 wmic.exe Token: SeTakeOwnershipPrivilege 2776 wmic.exe Token: SeLoadDriverPrivilege 2776 wmic.exe Token: SeSystemProfilePrivilege 2776 wmic.exe Token: SeSystemtimePrivilege 2776 wmic.exe Token: SeProfSingleProcessPrivilege 2776 wmic.exe Token: SeIncBasePriorityPrivilege 2776 wmic.exe Token: SeCreatePagefilePrivilege 2776 wmic.exe Token: SeBackupPrivilege 2776 wmic.exe Token: SeRestorePrivilege 2776 wmic.exe Token: SeShutdownPrivilege 2776 wmic.exe Token: SeDebugPrivilege 2776 wmic.exe Token: SeSystemEnvironmentPrivilege 2776 wmic.exe Token: SeRemoteShutdownPrivilege 2776 wmic.exe Token: SeUndockPrivilege 2776 wmic.exe Token: SeManageVolumePrivilege 2776 wmic.exe Token: 33 2776 wmic.exe Token: 34 2776 wmic.exe Token: 35 2776 wmic.exe Token: 36 2776 wmic.exe Token: SeDebugPrivilege 2020 powershell.exe Token: SeDebugPrivilege 5060 powershell.exe Token: SeDebugPrivilege 3212 powershell.exe Token: SeDebugPrivilege 3528 powershell.exe Token: SeIncreaseQuotaPrivilege 4384 wmic.exe Token: SeSecurityPrivilege 4384 wmic.exe Token: SeTakeOwnershipPrivilege 4384 wmic.exe Token: SeLoadDriverPrivilege 4384 wmic.exe Token: SeSystemProfilePrivilege 4384 wmic.exe Token: SeSystemtimePrivilege 4384 wmic.exe Token: SeProfSingleProcessPrivilege 4384 wmic.exe Token: SeIncBasePriorityPrivilege 4384 wmic.exe Token: SeCreatePagefilePrivilege 4384 wmic.exe Token: SeBackupPrivilege 4384 wmic.exe Token: SeRestorePrivilege 4384 wmic.exe Token: SeShutdownPrivilege 4384 wmic.exe Token: SeDebugPrivilege 4384 wmic.exe Token: SeSystemEnvironmentPrivilege 4384 wmic.exe Token: SeRemoteShutdownPrivilege 4384 wmic.exe Token: SeUndockPrivilege 4384 wmic.exe Token: SeManageVolumePrivilege 4384 wmic.exe -
Suspicious use of WriteProcessMemory 26 IoCs
description pid Process procid_target PID 3604 wrote to memory of 2776 3604 CorruptX1.3.exe 83 PID 3604 wrote to memory of 2776 3604 CorruptX1.3.exe 83 PID 3604 wrote to memory of 3488 3604 CorruptX1.3.exe 86 PID 3604 wrote to memory of 3488 3604 CorruptX1.3.exe 86 PID 3604 wrote to memory of 2020 3604 CorruptX1.3.exe 88 PID 3604 wrote to memory of 2020 3604 CorruptX1.3.exe 88 PID 3604 wrote to memory of 5060 3604 CorruptX1.3.exe 90 PID 3604 wrote to memory of 5060 3604 CorruptX1.3.exe 90 PID 3604 wrote to memory of 3212 3604 CorruptX1.3.exe 92 PID 3604 wrote to memory of 3212 3604 CorruptX1.3.exe 92 PID 3604 wrote to memory of 3528 3604 CorruptX1.3.exe 94 PID 3604 wrote to memory of 3528 3604 CorruptX1.3.exe 94 PID 3604 wrote to memory of 4384 3604 CorruptX1.3.exe 96 PID 3604 wrote to memory of 4384 3604 CorruptX1.3.exe 96 PID 3604 wrote to memory of 4848 3604 CorruptX1.3.exe 98 PID 3604 wrote to memory of 4848 3604 CorruptX1.3.exe 98 PID 3604 wrote to memory of 4040 3604 CorruptX1.3.exe 101 PID 3604 wrote to memory of 4040 3604 CorruptX1.3.exe 101 PID 3604 wrote to memory of 1280 3604 CorruptX1.3.exe 103 PID 3604 wrote to memory of 1280 3604 CorruptX1.3.exe 103 PID 3604 wrote to memory of 4568 3604 CorruptX1.3.exe 105 PID 3604 wrote to memory of 4568 3604 CorruptX1.3.exe 105 PID 3604 wrote to memory of 836 3604 CorruptX1.3.exe 107 PID 3604 wrote to memory of 836 3604 CorruptX1.3.exe 107 PID 836 wrote to memory of 2664 836 cmd.exe 109 PID 836 wrote to memory of 2664 836 cmd.exe 109 -
Views/modifies file attributes 1 TTPs 1 IoCs
pid Process 3488 attrib.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\CorruptX1.3.exe"C:\Users\Admin\AppData\Local\Temp\CorruptX1.3.exe"1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3604 -
C:\Windows\System32\Wbem\wmic.exe"wmic.exe" csproduct get uuid2⤵
- Suspicious use of AdjustPrivilegeToken
PID:2776
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C:\Windows\SYSTEM32\attrib.exe"attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\CorruptX1.3.exe"2⤵
- Views/modifies file attributes
PID:3488
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\CorruptX1.3.exe'2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2020
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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:5060
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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:3212
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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:3528
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C:\Windows\System32\Wbem\wmic.exe"wmic.exe" os get Caption2⤵
- Suspicious use of AdjustPrivilegeToken
PID:4384
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C:\Windows\System32\Wbem\wmic.exe"wmic.exe" computersystem get totalphysicalmemory2⤵PID:4848
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C:\Windows\System32\Wbem\wmic.exe"wmic.exe" csproduct get uuid2⤵PID:4040
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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:1280
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C:\Windows\System32\Wbem\wmic.exe"wmic" path win32_VideoController get name2⤵
- Detects videocard installed
PID:4568
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C:\Windows\SYSTEM32\cmd.exe"cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\CorruptX1.3.exe" && pause2⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:836 -
C:\Windows\system32\PING.EXEping localhost3⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:2664
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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
Loading Replay Monitor...
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
MD5966914e2e771de7a4a57a95b6ecfa8a9
SHA17a32282fd51dd032967ed4d9a40cc57e265aeff2
SHA25698d3c70d7004fa807897317bd6cd3e977b9b6c72d4d2565aca0f9f8b1c315cba
SHA512dc39c7124a9c7c8d4c7e8e16290c46360b8d9a8f4e43edaacbbeb09bdcf20159a53db54d2b322372001b6a3de52b2f88e9088b5fdbc7638816ae0d122bb015f5
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Filesize
1KB
MD5276798eeb29a49dc6e199768bc9c2e71
SHA15fdc8ccb897ac2df7476fbb07517aca5b7a6205b
SHA256cd0a1056e8f1b6cb5cb328532239d802f4e2aa8f8fcdc0fcb487684bd68e0dcc
SHA5120d34fce64bbefc57d64fa6e03ca886952263d5f24df9c1c4cce6a1e8f5a47a9a21e9820f8d38caa7f7b43a52336ce00b738ea18419aaa7c788b72e04ce19e4f2
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Filesize
1KB
MD5128b92209197100ce7aff24e1fcb531e
SHA13333b685091e506aba63a8fa480abcb3e387ca11
SHA256486ea5d4e5a060d5e2b325a29184963117b806eac4c3c8f2054e270977a6a76b
SHA51275aa70ee708b793be9a72a11a6e60c356181bbb93d6c2addd627606974048733f760850f4022926fc0f13b8a7dcdd94cd4b4a5374a0e57d236525649fe7a221f
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82