Analysis
- max time kernel
149s - max time network
138s - platform
windows10-2004_x64 - resource
win10v2004-20260911-en - resource tags
- submitted
14/10/2026, 04:26
General
- Target jaffacakes118_not-a-virus.HEUR.AdWare.Win32.ExtInstaller.gen.exe
- Size 774KB
- Sample261014-e2hsysed98
- SHA256 898f7b0832ec7a1b3165c56f196beda3dbb6ee4978856be30b993089dbebb6d5
Malware Config
Signatures
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 2 IoCs
- Loads dropped DLL 2 IoCs
- Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Drops file in Program Files directory 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs
The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.
- System Location Discovery: System Language Discovery 1 TTPs 5 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Inno Setup is an open-source installation builder for Windows applications. 4 IoCs
Inno Setup installer
- Kills process with taskkill 1 IoCs
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of WriteProcessMemory 4 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\jaffacakes118_not-a-virus.HEUR.AdWare.Win32.ExtInstaller.gen.exe"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_not-a-virus.HEUR.AdWare.Win32.ExtInstaller.gen.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-2COLA.tmp\jaffacakes118_not-a-virus.HEUR.AdWare.Win32.ExtInstaller.gen.tmp"C:\Users\Admin\AppData\Local\Temp\is-2COLA.tmp\jaffacakes118_not-a-virus.HEUR.AdWare.Win32.ExtInstaller.gen.tmp" /SL5="$40248,406757,121344,C:\Users\Admin\AppData\Local\Temp\jaffacakes118_not-a-virus.HEUR.AdWare.Win32.ExtInstaller.gen.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\jaffacakes118_not-a-virus.HEUR.AdWare.Win32.ExtInstaller.gen.exe"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_not-a-virus.HEUR.AdWare.Win32.ExtInstaller.gen.exe" /VERYSILENT3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-06JCN.tmp\jaffacakes118_not-a-virus.HEUR.AdWare.Win32.ExtInstaller.gen.tmp"C:\Users\Admin\AppData\Local\Temp\is-06JCN.tmp\jaffacakes118_not-a-virus.HEUR.AdWare.Win32.ExtInstaller.gen.tmp" /SL5="$50236,406757,121344,C:\Users\Admin\AppData\Local\Temp\jaffacakes118_not-a-virus.HEUR.AdWare.Win32.ExtInstaller.gen.exe" /VERYSILENT4⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\taskkill.exetaskkill /F /IM chrome.exe5⤵
- System Location Discovery: System Language Discovery
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
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Network
MITRE ATT&CK Enterprise v16
Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
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Downloads
jaffacakes118_not-a-virus.HEUR.AdWare.Win32.ExtInstaller.gen.tmp
command.dll
product.dll
memory/2876-16-0x0000000000400000-0x000000000052D000-memory.dmp
memory/2876-40-0x0000000000400000-0x000000000052D000-memory.dmp
memory/2876-18-0x0000000000400000-0x000000000052D000-memory.dmp
memory/3756-13-0x0000000000400000-0x0000000000428000-memory.dmp
memory/3756-1-0x0000000000400000-0x0000000000428000-memory.dmp
memory/4044-10-0x0000000000400000-0x000000000052D000-memory.dmp
memory/4044-5-0x00000000006C0000-0x00000000006C1000-memory.dmp
memory/4164-9-0x0000000000419000-0x000000000041A000-memory.dmp
memory/4164-7-0x0000000000400000-0x0000000000428000-memory.dmp
memory/4164-41-0x0000000000400000-0x0000000000428000-memory.dmp