stealc | 9bbf51c3b5c28b1264c4dc39c83110405cce3c8b64b78858f33d7040aab43484

Analysis

max time kernel
149s
max time network
153s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
10/09/2026, 10:34

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General

Target
9bbf51c3b5c28b1264c4dc39c83110405cce3c8b64b78858f33d7040aab43484.exe
Size 3.0MB
Sample260910-ml8cnsvwcy
SHA256 9bbf51c3b5c28b1264c4dc39c83110405cce3c8b64b78858f33d7040aab43484
MD5 a358b66a3dc5433c05ce892f02be4ec6
SHA1 53df4744337861ca12716f824a582c198f06cd34
SHA512 a57bba33baac2c9088f8a8f3d27d310f0da65941d497019375c2a48241075dce9a4057bdcd08f35995176360f8ca56c80a6efaa0e805098def82db353fceb063
SSDEEP 49152:MoFjP7VlpIkdsuRHC1Kre9WlvQ3wtnSts1Cj:BjP7V71dsoHC1WyWRdtnSy12
TLSH
T105E5238886935B2EDCFAABF55671F13163B61C9C6462E18E1EEE3EDF3A167100400797
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

execution stealc persistence stealer

Malware Config

Extracted

Family

stealc

https://update-microsoft-data.services

rc4.plain

Signatures

Family: Stealc
Stealc is an infostealer written in C++.
stealer stealc

Detects Stealc stealer Version 3 1 IoCs

resource	yara_rule
behavioral2/memory/2488-12-0x0000000140000000-0x00000001400D7000-memory.dmp	family_stealc_v3

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.

execution

PowerShell

T1059.001

pid	Process
2692	powershell.exe
4172	powershell.exe
4688	powershell.exe

Executes dropped EXE 2 IoCs

pid	Process
3912	UbAkodqWAhZ.exe
1168	UbAkodqWAhZ.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4046655672-1449839301-2197395821-1000\Software\Microsoft\Windows\CurrentVersion\Run\UbAkodqWAhZ = "\"C:\\Windows\\system32\\WindowsPowerShell\\v1.0\\powershell.exe\" -NoProfile -ExecutionPolicy Bypass -WindowStyle Hidden -File \"C:\\Users\\Admin\\AppData\\Local\\Temp\\v4j4sf2cbjj.ps1\""	9bbf51c3b5c28b1264c4dc39c83110405cce3c8b64b78858f33d7040aab43484.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4516 set thread context of 2488	4516	9bbf51c3b5c28b1264c4dc39c83110405cce3c8b64b78858f33d7040aab43484.exe	91
PID 3912 set thread context of 1168	3912	UbAkodqWAhZ.exe	99

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
4516	9bbf51c3b5c28b1264c4dc39c83110405cce3c8b64b78858f33d7040aab43484.exe
4172	powershell.exe
4172	powershell.exe
4688	powershell.exe
4688	powershell.exe
4688	powershell.exe
3912	UbAkodqWAhZ.exe
2692	powershell.exe
2692	powershell.exe

Suspicious use of AdjustPrivilegeToken 47 IoCs

description	pid	Process
Token: SeDebugPrivilege	4516	9bbf51c3b5c28b1264c4dc39c83110405cce3c8b64b78858f33d7040aab43484.exe
Token: SeDebugPrivilege	4172	powershell.exe
Token: SeDebugPrivilege	4688	powershell.exe
Token: SeIncreaseQuotaPrivilege	4172	powershell.exe
Token: SeSecurityPrivilege	4172	powershell.exe
Token: SeTakeOwnershipPrivilege	4172	powershell.exe
Token: SeLoadDriverPrivilege	4172	powershell.exe
Token: SeSystemProfilePrivilege	4172	powershell.exe
Token: SeSystemtimePrivilege	4172	powershell.exe
Token: SeProfSingleProcessPrivilege	4172	powershell.exe
Token: SeIncBasePriorityPrivilege	4172	powershell.exe
Token: SeCreatePagefilePrivilege	4172	powershell.exe
Token: SeBackupPrivilege	4172	powershell.exe
Token: SeRestorePrivilege	4172	powershell.exe
Token: SeShutdownPrivilege	4172	powershell.exe
Token: SeDebugPrivilege	4172	powershell.exe
Token: SeSystemEnvironmentPrivilege	4172	powershell.exe
Token: SeRemoteShutdownPrivilege	4172	powershell.exe
Token: SeUndockPrivilege	4172	powershell.exe
Token: SeManageVolumePrivilege	4172	powershell.exe
Token: 33	4172	powershell.exe
Token: 34	4172	powershell.exe
Token: 35	4172	powershell.exe
Token: 36	4172	powershell.exe
Token: SeDebugPrivilege	3912	UbAkodqWAhZ.exe
Token: SeDebugPrivilege	2692	powershell.exe
Token: SeIncreaseQuotaPrivilege	2692	powershell.exe
Token: SeSecurityPrivilege	2692	powershell.exe
Token: SeTakeOwnershipPrivilege	2692	powershell.exe
Token: SeLoadDriverPrivilege	2692	powershell.exe
Token: SeSystemProfilePrivilege	2692	powershell.exe
Token: SeSystemtimePrivilege	2692	powershell.exe
Token: SeProfSingleProcessPrivilege	2692	powershell.exe
Token: SeIncBasePriorityPrivilege	2692	powershell.exe
Token: SeCreatePagefilePrivilege	2692	powershell.exe
Token: SeBackupPrivilege	2692	powershell.exe
Token: SeRestorePrivilege	2692	powershell.exe
Token: SeShutdownPrivilege	2692	powershell.exe
Token: SeDebugPrivilege	2692	powershell.exe
Token: SeSystemEnvironmentPrivilege	2692	powershell.exe
Token: SeRemoteShutdownPrivilege	2692	powershell.exe
Token: SeUndockPrivilege	2692	powershell.exe
Token: SeManageVolumePrivilege	2692	powershell.exe
Token: 33	2692	powershell.exe
Token: 34	2692	powershell.exe
Token: 35	2692	powershell.exe
Token: 36	2692	powershell.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 4516 wrote to memory of 4172	4516	9bbf51c3b5c28b1264c4dc39c83110405cce3c8b64b78858f33d7040aab43484.exe	89
PID 4516 wrote to memory of 2488	4516	9bbf51c3b5c28b1264c4dc39c83110405cce3c8b64b78858f33d7040aab43484.exe	91
PID 4516 wrote to memory of 2488	4516	9bbf51c3b5c28b1264c4dc39c83110405cce3c8b64b78858f33d7040aab43484.exe	91
PID 4516 wrote to memory of 2488	4516	9bbf51c3b5c28b1264c4dc39c83110405cce3c8b64b78858f33d7040aab43484.exe	91
PID 4516 wrote to memory of 2488	4516	9bbf51c3b5c28b1264c4dc39c83110405cce3c8b64b78858f33d7040aab43484.exe	91
PID 4516 wrote to memory of 2488	4516	9bbf51c3b5c28b1264c4dc39c83110405cce3c8b64b78858f33d7040aab43484.exe	91
PID 4516 wrote to memory of 2488	4516	9bbf51c3b5c28b1264c4dc39c83110405cce3c8b64b78858f33d7040aab43484.exe	91
PID 4516 wrote to memory of 2488	4516	9bbf51c3b5c28b1264c4dc39c83110405cce3c8b64b78858f33d7040aab43484.exe	91
PID 4516 wrote to memory of 2488	4516	9bbf51c3b5c28b1264c4dc39c83110405cce3c8b64b78858f33d7040aab43484.exe	91
PID 4688 wrote to memory of 3912	4688	powershell.exe	95
PID 3912 wrote to memory of 2692	3912	UbAkodqWAhZ.exe	97
PID 3912 wrote to memory of 1168	3912	UbAkodqWAhZ.exe	99
PID 3912 wrote to memory of 1168	3912	UbAkodqWAhZ.exe	99
PID 3912 wrote to memory of 1168	3912	UbAkodqWAhZ.exe	99
PID 3912 wrote to memory of 1168	3912	UbAkodqWAhZ.exe	99
PID 3912 wrote to memory of 1168	3912	UbAkodqWAhZ.exe	99
PID 3912 wrote to memory of 1168	3912	UbAkodqWAhZ.exe	99
PID 3912 wrote to memory of 1168	3912	UbAkodqWAhZ.exe	99
PID 3912 wrote to memory of 1168	3912	UbAkodqWAhZ.exe	99

C:\Users\Admin\AppData\Local\Temp\9bbf51c3b5c28b1264c4dc39c83110405cce3c8b64b78858f33d7040aab43484.exe
"C:\Users\Admin\AppData\Local\Temp\9bbf51c3b5c28b1264c4dc39c83110405cce3c8b64b78858f33d7040aab43484.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4516
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\9bbf51c3b5c28b1264c4dc39c83110405cce3c8b64b78858f33d7040aab43484.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4172
- C:\Users\Admin\AppData\Local\Temp\9bbf51c3b5c28b1264c4dc39c83110405cce3c8b64b78858f33d7040aab43484.exe
  C:\Users\Admin\AppData\Local\Temp\9bbf51c3b5c28b1264c4dc39c83110405cce3c8b64b78858f33d7040aab43484.exe
  2⤵
  PID:2488

C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -ExecutionPolicy Bypass -WindowStyle Hidden -File "C:\Users\Admin\AppData\Local\Temp\v4j4sf2cbjj.ps1"
1⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4688
- C:\Users\Admin\AppData\Roaming\UbAkodqWAhZ.exe
  "C:\Users\Admin\AppData\Roaming\UbAkodqWAhZ.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3912
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\UbAkodqWAhZ.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2692
- - C:\Users\Admin\AppData\Roaming\UbAkodqWAhZ.exe
    C:\Users\Admin\AppData\Roaming\UbAkodqWAhZ.exe
    3⤵
    - Executes dropped EXE
    PID:1168

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 1KB
SHA256 d28ef187840dcd1fe0a8a757ef9cd326023bec38b39ef1338f91d508d55dcf28
MD5 acbc65123954839a819fa2495d239bf7
SHA1 063cff64444a6e3b4be1445b4cecb477e4d6ae47
SHA512 af07d3f6dcf1779bcc864aabe9e08563b20b8df8238df7bb08a5fe3b4e40d10f2e2a4442a042fe5d7a320e3b8195799ecc885549faa8babb5909eb32271e7b91
TLSH
T170216833B3DD8615CC9A413A10CDAC1036B6C7DB40DECFAB7B84E655A43F699CE61160
MD5 SHA1 SHA512 TLSH

Submit Download

__PSScriptPolicyTest_wutfdbv3.kla.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_wutfdbv3.kla.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
TLSH
T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
MD5 SHA1 SHA512 TLSH

Submit Download

v4j4sf2cbjj.ps1

Path C:\Users\Admin\AppData\Local\Temp\v4j4sf2cbjj.ps1
Size 1KB
SHA256 1ac3930fe2bc393080d52b054a5db4549f85b069911ce8017edd1b419d143a19
MD5 9d74df2b5361c11433afbf62da7915e5
SHA1 25f2609268ce9be6b7ad88fb86390d6a3a2a26a1
SHA512 cd626b3b7aebcf61fe0738642bedc50d18591d5f3727cef77777a8111b8a6cdd68ba968750bbc1aab1c23968820131dd73c882a2eae4d73c9cd880e27c3a8bd5
TLSH
T1F421E70B8E8597D6002407F14A1334CCB52EA0CB276F119056ECB5EEF32BD67356ADE4
MD5 SHA1 SHA512 TLSH

Submit Download

UbAkodqWAhZ.exe

Path C:\Users\Admin\AppData\Roaming\UbAkodqWAhZ.exe
Size 3.0MB
SHA256 9bbf51c3b5c28b1264c4dc39c83110405cce3c8b64b78858f33d7040aab43484
MD5 a358b66a3dc5433c05ce892f02be4ec6
SHA1 53df4744337861ca12716f824a582c198f06cd34
SHA512 a57bba33baac2c9088f8a8f3d27d310f0da65941d497019375c2a48241075dce9a4057bdcd08f35995176360f8ca56c80a6efaa0e805098def82db353fceb063
SSDEEP 49152:MoFjP7VlpIkdsuRHC1Kre9WlvQ3wtnSts1Cj:BjP7V71dsoHC1WyWRdtnSy12
TLSH
T105E5238886935B2EDCFAABF55671F13163B61C9C6462E18E1EEE3EDF3A167100400797
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/2488-12-0x0000000140000000-0x00000001400D7000-memory.dmp

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memory/2692-50-0x0000015F4FFD0000-0x0000015F50082000-memory.dmp

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memory/4172-21-0x00007FFFEEC90000-0x00007FFFEF634000-memory.dmp

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memory/4172-19-0x00007FFFEEC90000-0x00007FFFEF634000-memory.dmp

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memory/4172-42-0x00007FFFEEC90000-0x00007FFFEF634000-memory.dmp

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memory/4172-10-0x00007FFFEEC90000-0x00007FFFEF634000-memory.dmp

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memory/4172-11-0x00007FFFEEC90000-0x00007FFFEF634000-memory.dmp

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memory/4172-39-0x00007FFFEEC90000-0x00007FFFEF634000-memory.dmp

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memory/4172-13-0x00007FFFEEC90000-0x00007FFFEF634000-memory.dmp

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memory/4172-16-0x0000024FF6450000-0x0000024FF6472000-memory.dmp

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memory/4172-36-0x00007FFFEEC90000-0x00007FFFEF634000-memory.dmp

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memory/4172-32-0x00007FFFEEC90000-0x00007FFFEF634000-memory.dmp

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memory/4172-18-0x00007FFFEEC90000-0x00007FFFEF634000-memory.dmp

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memory/4172-20-0x00007FFFEEC90000-0x00007FFFEF634000-memory.dmp

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memory/4172-35-0x00007FFFEEC90000-0x00007FFFEF634000-memory.dmp

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memory/4172-22-0x00007FFFEEC90000-0x00007FFFEF634000-memory.dmp

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memory/4172-23-0x00007FFFEEC90000-0x00007FFFEF634000-memory.dmp

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memory/4172-27-0x0000024FF6540000-0x0000024FF65F2000-memory.dmp

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memory/4172-26-0x0000024FF6520000-0x0000024FF653E000-memory.dmp

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memory/4172-33-0x00007FFFEEC90000-0x00007FFFEF634000-memory.dmp

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memory/4172-31-0x00007FFFEEC90000-0x00007FFFEF634000-memory.dmp

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memory/4172-28-0x0000024FF6600000-0x0000024FF660A000-memory.dmp

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memory/4516-17-0x00007FFFEEC90000-0x00007FFFEF634000-memory.dmp

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memory/4516-5-0x00007FFFEEC90000-0x00007FFFEF634000-memory.dmp

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memory/4516-4-0x000001102D0E0000-0x000001102D0EC000-memory.dmp

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memory/4516-0-0x00007FFFEEE1F000-0x00007FFFEEE20000-memory.dmp

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memory/4516-7-0x00007FFFEEC90000-0x00007FFFEF634000-memory.dmp

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memory/4516-3-0x00007FFFEEC90000-0x00007FFFEF634000-memory.dmp

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memory/4516-6-0x00007FFFEEC90000-0x00007FFFEF634000-memory.dmp

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memory/4516-2-0x00007FFFEEC90000-0x00007FFFEF634000-memory.dmp

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memory/4516-8-0x000001104A390000-0x000001104A4F8000-memory.dmp

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memory/4516-1-0x000001102CAA0000-0x000001102CC20000-memory.dmp

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