Analysis
- max time kernel
150s - max time network
136s - platform
windows10-2004_x64 - resource
win10v2004-20260911-en - resource tags
arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
14/10/2026, 07:38
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
jaffacakes118_HEUR.Trojan.Win32.Generic.exe
Resource
win10v2004-20260911-en
12 signatures
150 seconds
Behavioral task
behavioral2
Sample
jaffacakes118_HEUR.Trojan.Win32.Generic.exe
Resource
win11ltsc2024-20260911-en
12 signatures
150 seconds
General
- Target jaffacakes118_HEUR.Trojan.Win32.Generic.exe
- Size 324KB
- Sample261014-jgqehsfb64
- SHA256 d77b179c75287c5c2deb4b97d7885b86367375214680965f8ebe913dace1f06b
- MD5 f7ad73de828dca55868cb6d51bd28cca
- SHA1 932d880a071a96ae358f25986ed37ade7edc4cb1
- SHA512 95d1bbd5c61b3fd7326ebca86164b596b16ad896f2f06c1e62c12dbf12312df7cbb967550f0d61a56f7adbe87802a703564bebd96ad3c6b77248120ba071a0d8
- SSDEEP 3072:QCWsQ37XRZkPIJzlMfa3lhhzEdgSbH3HeVCHaoJ5tv9xMy6NxCw55u2sdt:QCq7XUiMfE35E7HjZv9xmxCF2It
- TLSH T14C64AE117BD1C072DA5A147A4826C37A593AB9304F66D6C3BBD11F2EDE203D2EE3534A
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10
Malware Config
Signatures
- Executes dropped EXE 2 IoCs
pid Process 2952 winrs.exe 2432 winrs.exe - Loads dropped DLL 2 IoCs
pid Process 2952 winrs.exe 2432 winrs.exe - Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\winrs = "C:\\ProgramData\\WebExt\\winrs.exe" winrs.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\winrs = "C:\\ProgramData\\WebExt\\winrs.exe" winrs.exe - 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.
description ioc Process Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname winrs.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain winrs.exe - System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language jaffacakes118_HEUR.Trojan.Win32.Generic.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language winrs.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language winrs.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2952 winrs.exe - Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 2952 winrs.exe - Suspicious use of SendNotifyMessage 1 IoCs
pid Process 2952 winrs.exe - Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 2952 winrs.exe 2952 winrs.exe 2952 winrs.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 3972 wrote to memory of 2952 3972 jaffacakes118_HEUR.Trojan.Win32.Generic.exe 97
Processes
-
C:\Users\Admin\AppData\Local\Temp\jaffacakes118_HEUR.Trojan.Win32.Generic.exe"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_HEUR.Trojan.Win32.Generic.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3972 -
C:\ProgramData\WebExt\winrs.exeC:\ProgramData\WebExt\winrs.exe2⤵
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
PID:2952
-
-
C:\ProgramData\WebExt\winrs.exeC:\ProgramData\WebExt\winrs.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
PID:2432
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\ProgramData\NetExt\el.dat
- Size 53B
- SHA256 ef72ca0d558bfac684dba60ae5bc75b74032acd13a118372228fb0a2d87e0c45
- MD5 331e6fc461aaca836ec779281e0eb15b
- SHA1 c52841e11c49fbe67976ad1769d14cd9a620448e
- SHA512 d628978e0aba5544e88395fc776af05d868c184ce5e8ec9318490c64c2848cf733914594b0e4e8a67b5ccd7e653a4588a09e3983aa95700ab405b1100109c819
- TLSH T1119002025878A0D16B4F5841B9887152C94600445852444445AC818C72499659D889C3
- MD5 SHA1 SHA512 TLSH
- Path C:\ProgramData\NetExt\udat.dat
- Size 44B
- SHA256 ce0b32f8ee38cf9b6308688e50362e730c373786a13828efb6680b43f68436ea
- MD5 328d465f9e5cdeb6ffb7c7261fce13df
- SHA1 ab239b3f30f473ac2a63301f557affd2cd7ee668
- SHA512 e9e95dd7305952cf449446932ed5df1fe7012545c61f39c94fd84dd0fb1eb148b1e6a09752d03f17f61ac7241c78906f371374035d5553a5795d15d18e74968b
- MD5 SHA1 SHA512
- Path C:\ProgramData\WebExt\cssys.dll
- Size 75KB
- SHA256 7ac3715574b77ad436e16213b779c2a362ec0827576c36d1bf7e18a39b7f4465
- MD5 7c3cc77d3cb688b8f020247c143a35bd
- SHA1 f2d3e5f5de3b04c0fbf0b1e78502203a5404e5c2
- SHA512 5aa10a31a0e4733aecc25ed24d424cd4287de4b84eb0ddcb5c6d682d37b74d7a54257eca065bd92a85ab0f60fa61f9c8c4e38343772e476c0d4cb959d367ce9c
- SSDEEP 768:+BVv7Xw/ZhhqWeM+M01eARp5shb9kp3r3+e+SMy5IXcm2dUsC4a30aPKNPdUhalz:6VrIgWeMOeEK27bqdR2Cp02Cw55u2s
- TLSH T12E737B203690C0B2C09A69355825E7B16E7D7831DAF9C5077F970B7E9E313E0A63938B
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\ProgramData\WebExt\winrs.exe
- Size 324KB
- SHA256 d77b179c75287c5c2deb4b97d7885b86367375214680965f8ebe913dace1f06b
- MD5 f7ad73de828dca55868cb6d51bd28cca
- SHA1 932d880a071a96ae358f25986ed37ade7edc4cb1
- SHA512 95d1bbd5c61b3fd7326ebca86164b596b16ad896f2f06c1e62c12dbf12312df7cbb967550f0d61a56f7adbe87802a703564bebd96ad3c6b77248120ba071a0d8
- SSDEEP 3072:QCWsQ37XRZkPIJzlMfa3lhhzEdgSbH3HeVCHaoJ5tv9xMy6NxCw55u2sdt:QCq7XUiMfE35E7HjZv9xmxCF2It
- TLSH T14C64AE117BD1C072DA5A147A4826C37A593AB9304F66D6C3BBD11F2EDE203D2EE3534A
- MD5 SHA1 SHA512 SSDEEP TLSH