603937efb5cc0eacd5cd833a26f3b525b09757b5de110e9c630896b6f45bcd85

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
10/09/2026, 02:23

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General

Target
jaffacakes118_1 Advanced System Optimizer zip.exe
Size 10.4MB
Sample260910-cvfc5swvev
SHA256 603937efb5cc0eacd5cd833a26f3b525b09757b5de110e9c630896b6f45bcd85
MD5 c62cf5351d2352b73730a46c8095232c
SHA1 6ceb7af30393360e6b5384e147af2c88fb3a0c0b
SHA512 3a5fc9c6f2cd7be87acc280c16150d55953808fef2ea357c6b2f3256f98f57150c280cecdf17ecb0e2ef84b71157ee3dea144e40ef9ddde638026671487e6948
SSDEEP 12288:Yf//K/GBRLjhZDP4PyMRmakwVXF8ECC++nb3VfMjMLBdNs1g5GOw8KfgncPlqHvN:YX/KeBR/hly4YVYq
TLSH
T17AB627391D6F5EE7F2E9CE31E5DC935138DB65322580B7AF7383020E066F581A4A8D1A
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

discovery persistence

Malware Config

Signatures

Executes dropped EXE 4 IoCs

pid	Process
4752	audiod.exe
2648	audiod.exe
1500	audiod.exe
332	audiod.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-204488895-2999877624-296153668-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Audio Device Graph = "C:\\Users\\Admin\\AppData\\Local\\Temp\\audiod.exe"	audiod.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-204488895-2999877624-296153668-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Audio Device Graph = "C:\\Users\\Admin\\AppData\\Local\\Temp\\audiod.exe"	audiod.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2184 set thread context of 1196	2184	jaffacakes118_1 Advanced System Optimizer zip.exe	86
PID 4752 set thread context of 2648	4752	audiod.exe	88
PID 1500 set thread context of 332	1500	audiod.exe	97

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4432	2648	WerFault.exe	88
396	332	WerFault.exe	97

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jaffacakes118_1 Advanced System Optimizer zip.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jaffacakes118_1 Advanced System Optimizer zip.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	audiod.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	audiod.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2648	audiod.exe
2648	audiod.exe
2648	audiod.exe
2648	audiod.exe
332	audiod.exe
332	audiod.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2184	jaffacakes118_1 Advanced System Optimizer zip.exe
4752	audiod.exe
1500	audiod.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 2184 wrote to memory of 1196	2184	jaffacakes118_1 Advanced System Optimizer zip.exe	86
PID 2184 wrote to memory of 1196	2184	jaffacakes118_1 Advanced System Optimizer zip.exe	86
PID 2184 wrote to memory of 1196	2184	jaffacakes118_1 Advanced System Optimizer zip.exe	86
PID 2184 wrote to memory of 1196	2184	jaffacakes118_1 Advanced System Optimizer zip.exe	86
PID 2184 wrote to memory of 1196	2184	jaffacakes118_1 Advanced System Optimizer zip.exe	86
PID 2184 wrote to memory of 1196	2184	jaffacakes118_1 Advanced System Optimizer zip.exe	86
PID 2184 wrote to memory of 1196	2184	jaffacakes118_1 Advanced System Optimizer zip.exe	86
PID 1196 wrote to memory of 4752	1196	jaffacakes118_1 Advanced System Optimizer zip.exe	87
PID 4752 wrote to memory of 2648	4752	audiod.exe	88
PID 4752 wrote to memory of 2648	4752	audiod.exe	88
PID 4752 wrote to memory of 2648	4752	audiod.exe	88
PID 4752 wrote to memory of 2648	4752	audiod.exe	88
PID 4752 wrote to memory of 2648	4752	audiod.exe	88
PID 4752 wrote to memory of 2648	4752	audiod.exe	88
PID 4752 wrote to memory of 2648	4752	audiod.exe	88
PID 1500 wrote to memory of 332	1500	audiod.exe	97
PID 1500 wrote to memory of 332	1500	audiod.exe	97
PID 1500 wrote to memory of 332	1500	audiod.exe	97
PID 1500 wrote to memory of 332	1500	audiod.exe	97
PID 1500 wrote to memory of 332	1500	audiod.exe	97
PID 1500 wrote to memory of 332	1500	audiod.exe	97
PID 1500 wrote to memory of 332	1500	audiod.exe	97

C:\Users\Admin\AppData\Local\Temp\jaffacakes118_1 Advanced System Optimizer zip.exe
"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_1 Advanced System Optimizer zip.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2184
- C:\Users\Admin\AppData\Local\Temp\jaffacakes118_1 Advanced System Optimizer zip.exe
  "C:\Users\Admin\AppData\Local\Temp\jaffacakes118_1 Advanced System Optimizer zip.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1196
- - C:\Users\Admin\AppData\Local\Temp\audiod.exe
    "C:\Users\Admin\AppData\Local\Temp\audiod.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4752
  - - C:\Users\Admin\AppData\Local\Temp\audiod.exe
      "C:\Users\Admin\AppData\Local\Temp\audiod.exe"
      4⤵
      Executes dropped EXE
      Adds Run key to start application
      Suspicious behavior: EnumeratesProcesses
      PID:2648
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 2648 -s 484
        5⤵
        Program crash
        
        PID:4432

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2648 -ip 2648
1⤵
PID:4904

C:\Users\Admin\AppData\Local\Temp\audiod.exe
C:\Users\Admin\AppData\Local\Temp\audiod.exe
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1500
- C:\Users\Admin\AppData\Local\Temp\audiod.exe
  "C:\Users\Admin\AppData\Local\Temp\audiod.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  PID:332
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 332 -s 484
    3⤵
    - Program crash
    PID:396

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 332 -ip 332
1⤵
PID:2852

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

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 Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

audiod.exe

Path C:\Users\Admin\AppData\Local\Temp\audiod.exe
Size 10.4MB
SHA256 603937efb5cc0eacd5cd833a26f3b525b09757b5de110e9c630896b6f45bcd85
MD5 c62cf5351d2352b73730a46c8095232c
SHA1 6ceb7af30393360e6b5384e147af2c88fb3a0c0b
SHA512 3a5fc9c6f2cd7be87acc280c16150d55953808fef2ea357c6b2f3256f98f57150c280cecdf17ecb0e2ef84b71157ee3dea144e40ef9ddde638026671487e6948
SSDEEP 12288:Yf//K/GBRLjhZDP4PyMRmakwVXF8ECC++nb3VfMjMLBdNs1g5GOw8KfgncPlqHvN:YX/KeBR/hly4YVYq
TLSH
T17AB627391D6F5EE7F2E9CE31E5DC935138DB65322580B7AF7383020E066F581A4A8D1A
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/332-31-0x0000000000400000-0x000000000187B000-memory.dmp

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memory/332-35-0x0000000000400000-0x000000000187B000-memory.dmp

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memory/332-33-0x0000000000400000-0x000000000187B000-memory.dmp

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memory/1196-9-0x0000000000400000-0x000000000187B000-memory.dmp

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memory/1196-12-0x0000000000400000-0x000000000187B000-memory.dmp

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memory/1196-4-0x0000000000400000-0x000000000187B000-memory.dmp

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memory/1196-3-0x0000000000400000-0x000000000187B000-memory.dmp

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memory/1196-2-0x0000000000400000-0x000000000187B000-memory.dmp

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memory/1196-38-0x0000000000400000-0x000000000187B000-memory.dmp

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memory/2648-18-0x0000000000400000-0x000000000187B000-memory.dmp

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memory/2648-22-0x0000000000400000-0x000000000187B000-memory.dmp

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memory/2648-17-0x0000000000400000-0x000000000187B000-memory.dmp

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memory/2648-21-0x0000000000400000-0x000000000187B000-memory.dmp

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