Analysis
- max time kernel
149s - max time network
148s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
17/05/2026, 17:44
Static task
static1
Behavioral task
behavioral1
Sample
Delta.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
Delta.exe
Resource
win11-20260513-en
General
- Target Delta.exe
- Size 21.3MB
- Sample260517-wbbqdsft9k
- SHA256 fa298d04439c2a2caf87bd421c74f43bacd07d639f0f57d6462282531a8e8f1e
- MD5 11d332005dc70a95b9772018d624d682
- SHA1 dbf0622d51af249220800a591cf879e2b82ec3e1
- SHA512 0e3d188f5d7e7a3977381beff91c1c29642f2058f16e90f149e2044709e6a5e67383a29b62dc351686e76535765666bbbcdbe5853afe379db6ac257fbc266004
- SSDEEP 24576:DlRpjzvKWCuEjedjMdsEQ+rTyy7uJ/VZssbXcmc3Gbr3NH:npjeWLtO9Jyi4ZTbMlWbrdH
- TLSH T16A279E0237FEB09EEBABC7B4956556419621FC770E51808E31CD149B0F9B9407FBC2AA
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Family: DonutLoader
DonutLoader is a position-independent code that enables in-memory execution of VBScript, JScript, EXE, DLL files and dotNET assemblies.
- Detects DonutLoader 2 IoCs
resource yara_rule behavioral2/memory/4568-17-0x0000026AED600000-0x0000026AED7F2000-memory.dmp family_donutloader behavioral2/memory/4568-18-0x0000026AD28C0000-0x0000026AD28D0000-memory.dmp family_donutloader - 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 2088 powershell.exe 4776 powershell.exe 1216 powershell.exe - Drops startup file 1 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows Repair.lnk c7613629e194.exe - Executes dropped EXE 3 IoCs
pid Process 4568 c7613629e194.exe 2972 CoreWorker_GOBxHFpNYcKWOHH.exe 4400 CoreWorker_GOBxHFpNYcKWOHH.exe - Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Adds Run key to start application 2 TTPs 3 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1679180529-4058988202-686829476-1000\Software\Microsoft\Windows\CurrentVersion\Run\CoreWorker_GOBxHFpNYcKWOHH = "C:\\Users\\Admin\\AppData\\Local\\MpDefenderCoreFolder\\CoreWorker_GOBxHFpNYcKWOHH.exe" c7613629e194.exe Set value (str) \REGISTRY\USER\S-1-5-21-1679180529-4058988202-686829476-1000\Software\Microsoft\Windows\CurrentVersion\Run\CoreWorker_GOBxHFpNYcKWOHH = "C:\\Users\\Admin\\AppData\\Local\\MpDefenderCoreFolder\\CoreWorker_GOBxHFpNYcKWOHH.exe" CoreWorker_GOBxHFpNYcKWOHH.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\CoreWorker_GOBxHFpNYcKWOHH = "C:\\Users\\Admin\\AppData\\Local\\MpDefenderCoreFolder\\CoreWorker_GOBxHFpNYcKWOHH.exe" CoreWorker_GOBxHFpNYcKWOHH.exe - 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 4 ip-api.com - Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs
pid Process 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0 c7613629e194.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier c7613629e194.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe 4568 c7613629e194.exe - Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeDebugPrivilege 4568 c7613629e194.exe Token: SeDebugPrivilege 4568 c7613629e194.exe Token: SeDebugPrivilege 4776 powershell.exe Token: SeDebugPrivilege 2972 CoreWorker_GOBxHFpNYcKWOHH.exe Token: SeDebugPrivilege 2972 CoreWorker_GOBxHFpNYcKWOHH.exe Token: SeDebugPrivilege 1216 powershell.exe Token: SeDebugPrivilege 2088 powershell.exe Token: SeIncreaseQuotaPrivilege 1216 powershell.exe Token: SeSecurityPrivilege 1216 powershell.exe Token: SeTakeOwnershipPrivilege 1216 powershell.exe Token: SeLoadDriverPrivilege 1216 powershell.exe Token: SeSystemProfilePrivilege 1216 powershell.exe Token: SeSystemtimePrivilege 1216 powershell.exe Token: SeProfSingleProcessPrivilege 1216 powershell.exe Token: SeIncBasePriorityPrivilege 1216 powershell.exe Token: SeCreatePagefilePrivilege 1216 powershell.exe Token: SeBackupPrivilege 1216 powershell.exe Token: SeRestorePrivilege 1216 powershell.exe Token: SeShutdownPrivilege 1216 powershell.exe Token: SeDebugPrivilege 1216 powershell.exe Token: SeSystemEnvironmentPrivilege 1216 powershell.exe Token: SeRemoteShutdownPrivilege 1216 powershell.exe Token: SeUndockPrivilege 1216 powershell.exe Token: SeManageVolumePrivilege 1216 powershell.exe Token: 33 1216 powershell.exe Token: 34 1216 powershell.exe Token: 35 1216 powershell.exe Token: 36 1216 powershell.exe Token: SeIncreaseQuotaPrivilege 1216 powershell.exe Token: SeSecurityPrivilege 1216 powershell.exe Token: SeTakeOwnershipPrivilege 1216 powershell.exe Token: SeLoadDriverPrivilege 1216 powershell.exe Token: SeSystemProfilePrivilege 1216 powershell.exe Token: SeSystemtimePrivilege 1216 powershell.exe Token: SeProfSingleProcessPrivilege 1216 powershell.exe Token: SeIncBasePriorityPrivilege 1216 powershell.exe Token: SeCreatePagefilePrivilege 1216 powershell.exe Token: SeBackupPrivilege 1216 powershell.exe Token: SeRestorePrivilege 1216 powershell.exe Token: SeShutdownPrivilege 1216 powershell.exe Token: SeDebugPrivilege 1216 powershell.exe Token: SeSystemEnvironmentPrivilege 1216 powershell.exe Token: SeRemoteShutdownPrivilege 1216 powershell.exe Token: SeUndockPrivilege 1216 powershell.exe Token: SeManageVolumePrivilege 1216 powershell.exe Token: 33 1216 powershell.exe Token: 34 1216 powershell.exe Token: 35 1216 powershell.exe Token: 36 1216 powershell.exe Token: SeIncreaseQuotaPrivilege 1216 powershell.exe Token: SeSecurityPrivilege 1216 powershell.exe Token: SeTakeOwnershipPrivilege 1216 powershell.exe Token: SeLoadDriverPrivilege 1216 powershell.exe Token: SeSystemProfilePrivilege 1216 powershell.exe Token: SeSystemtimePrivilege 1216 powershell.exe Token: SeProfSingleProcessPrivilege 1216 powershell.exe Token: SeIncBasePriorityPrivilege 1216 powershell.exe Token: SeCreatePagefilePrivilege 1216 powershell.exe Token: SeBackupPrivilege 1216 powershell.exe Token: SeRestorePrivilege 1216 powershell.exe Token: SeShutdownPrivilege 1216 powershell.exe Token: SeDebugPrivilege 1216 powershell.exe Token: SeSystemEnvironmentPrivilege 1216 powershell.exe Token: SeRemoteShutdownPrivilege 1216 powershell.exe - Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 1860 wrote to memory of 4568 1860 Delta.exe 80 PID 4568 wrote to memory of 2940 4568 c7613629e194.exe 82 PID 4568 wrote to memory of 3468 4568 c7613629e194.exe 83 PID 4568 wrote to memory of 2940 4568 c7613629e194.exe 82 PID 4568 wrote to memory of 3468 4568 c7613629e194.exe 83 PID 4568 wrote to memory of 4800 4568 c7613629e194.exe 86 PID 4800 wrote to memory of 4776 4800 cmd.exe 88 PID 4568 wrote to memory of 2972 4568 c7613629e194.exe 89 PID 2972 wrote to memory of 1216 2972 CoreWorker_GOBxHFpNYcKWOHH.exe 90 PID 2972 wrote to memory of 2368 2972 CoreWorker_GOBxHFpNYcKWOHH.exe 92 PID 2368 wrote to memory of 2088 2368 cmd.exe 94
Processes
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C:\Users\Admin\AppData\Local\Temp\Delta.exe"C:\Users\Admin\AppData\Local\Temp\Delta.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:1860 -
C:\Users\Admin\AppData\Local\Temp\c7613629e194.exe"C:\Users\Admin\AppData\Local\Temp\c7613629e194.exe"2⤵
- Drops startup file
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4568 -
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"3⤵PID:2940
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C:\Program Files\Google\Chrome\Application\chrome.exe"C:\Program Files\Google\Chrome\Application\chrome.exe"3⤵PID:3468
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c powershell -C "Add-MpPreference -ExclusionExtension '.exe' -EA 0"3⤵
- Suspicious use of WriteProcessMemory
PID:4800 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -C "Add-MpPreference -ExclusionExtension '.exe' -EA 0"4⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious use of AdjustPrivilegeToken
PID:4776
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C:\Users\Admin\AppData\Local\MpDefenderCoreFolder\CoreWorker_GOBxHFpNYcKWOHH.exe"C:\Users\Admin\AppData\Local\MpDefenderCoreFolder\CoreWorker_GOBxHFpNYcKWOHH.exe"3⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2972 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -ExecutionPolicy Bypass -Command " $action = New-ScheduledTaskAction -Execute 'C:\Users\Admin\AppData\Local\MpDefenderCoreFolder\CoreWorker_GOBxHFpNYcKWOHH.exe' $trigger = New-ScheduledTaskTrigger -AtLogOn Register-ScheduledTask -Action $action -Trigger $trigger -TaskName 'CoreWorker_GOBxHFpNYcKWOHH-9637' -RunLevel Highest "4⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious use of AdjustPrivilegeToken
PID:1216
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c powershell -Command "Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\MpDefenderCoreFolder'"4⤵
- Suspicious use of WriteProcessMemory
PID:2368 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -Command "Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\MpDefenderCoreFolder'"5⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious use of AdjustPrivilegeToken
PID:2088
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C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\elevation_service.exe"C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\elevation_service.exe"1⤵PID:3900
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C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe"C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe"1⤵PID:900
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C:\Users\Admin\AppData\Local\MpDefenderCoreFolder\CoreWorker_GOBxHFpNYcKWOHH.exeC:\Users\Admin\AppData\Local\MpDefenderCoreFolder\CoreWorker_GOBxHFpNYcKWOHH.exe1⤵
- Executes dropped EXE
PID:4400
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
- Size 4KB
- SHA256 e27390d57580e3dfba07bec3d8e430203bbc91e90f6937079b3fd52abc721bd4
- MD5 dbbd2d4458d7e8094846420da595dfc3
- SHA1 267cb47b904f14a519d2bd73abfdb30e1a06e1a6
- SHA512 480e7ca865b811f79f35fcfe7a9ac0280b48d1f9459873d18f000db55c72d53345cf3a10075c1ac407439545f699ce2a7bef38b00b4e19439edf384b00045531
- SSDEEP 96:iq4uYqGEo9xx+incqKXq3qotzYNYr7aqCiNLm7RIz+cBPzQh0nRAy6FcxZcosQSm:iq4uYqGEUdncqKXq3qotzYuWq2Iz+wx
- TLSH T11D91EE323375E0D5C8263F07192C19C463AF439AEA54AF48B258620EED2714BDF122F7
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
- Size 1KB
- SHA256 813ab457b6b57b182d9d3c806a53c598121666942e76ed962b142c00c0fc1188
- MD5 fec200e29abbd2da2cd108c79021d78f
- SHA1 b4f1ccc73015cc8ddba58a8329ae1cd8a28cc682
- SHA512 9de2ffee24029a035952391f00e1ad9c800352639f2051897ffdb3b131a949686c59530fa555d6d4e1aad6a01f2a72010089064f16caf8da31ac8ef52fdc8c3e
- TLSH T1D0216533B3ECC125C8D9117A208CAD00B2B6C3C7449E8F8B7A84C619957F9DADB641A4
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
- Size 1KB
- SHA256 b79f569e6c453b33139dcd90442a80e59ac882a1e272a8e4a322d295bfac3ab0
- MD5 e60feda9a7e775a7d83cc6ec30a00f68
- SHA1 b258b886f3cba5a97922f2695ebeaedafe3638ef
- SHA512 51dae2882602a7ef7b3e43cc8745cc6fd974beae26a17730c928d4e82dc19dbb66287d9431cc6bd1990a7278c546cd3f9a51eeb6debd73eacf2803ee303c70e2
- TLSH T153218633B7ACC234C8D911BA208CAD01B2B5C3C7449ECE8B7B84C508A57F99ADB645E4
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\MpDefenderCoreFolder\CoreWorker_GOBxHFpNYcKWOHH.exe
- Size 13KB
- SHA256 27680f82001ad52345c3eb9feb15f243141955204d332f8c4715008a4ec53bc9
- MD5 799ca1dba3b07f476998d53b5a7a286c
- SHA1 6887ef2a385e1bfa7bf45ead268ead44a2c60bb2
- SHA512 b858c2afe889657c43090336a68103360361994b5e0b1d21401620dda657a808f13b81f1ef7e5d4f7fe808dc07ad58be9e2f3f1ff5f398ca9d95ef14c90788b7
- SSDEEP 192:o3ED4poDaVm2iJJdMBizTcPKw+rmbQSaZxGKxOkhE9MVEMKRDTQ7W7vm:uEyVmciw+rmbQSgxLQR9cEMKxgW7v
- TLSH T1D952D804A7E08139D6BA0B75DEF265105A33F7564932CE1F248C928B5B27380EDE2F66
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_cbn1nwge.sdb.ps1
- Size 60B
- SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
- MD5 d17fe0a3f47be24a6453e9ef58c94641
- SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
- SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
- TLSH T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Temp\c7613629e194.exe
- Size 1.1MB
- SHA256 c6041ad628f3c63bb31ea773f6012d9820cbacba3129cc94ba73f71d6ba8d0c3
- MD5 4ab4436b42b082ba7030c9c0d3180cca
- SHA1 55515c402b106049da7d8eb9b8acb51a73162286
- SHA512 1459149656121bedf44d576bd1630c8bb3d1afbe70bf1283e5e91e5ad14a5d3ca2d59bb13be813a2439a4ce5ee3832e3cd709d0d6ca8925999b1f92032c3f09e
- SSDEEP 24576:LgAoOX6eCO1h9sfCIui4qE//Pg5nMaMHfrT4v4KX:UAoC+fGqE4jmf4
- TLSH T1AE35D0162BA5DD41D2AE63B940640BC853FD8C15AE8AD7A6A3D03CF35ECF341A72605F
- MD5 SHA1 SHA512 SSDEEP TLSH