Analysis
- max time kernel
150s - max time network
153s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
30/09/2026, 10:36
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
jaffacakes118_63359b79f84db25e3b1023e65a460fae93dd8471ddf3e7a4735b11d77a5e0824.exe
Resource
win10v2004-20260911-en
10 signatures
150 seconds
Behavioral task
behavioral2
Sample
jaffacakes118_63359b79f84db25e3b1023e65a460fae93dd8471ddf3e7a4735b11d77a5e0824.exe
Resource
win11ltsc2024-20260911-en
10 signatures
150 seconds
General
- Target jaffacakes118_63359b79f84db25e3b1023e65a460fae93dd8471ddf3e7a4735b11d77a5e0824.exe
- Size 43KB
- Sample260930-mnmtrazgjc
- SHA256 63359b79f84db25e3b1023e65a460fae93dd8471ddf3e7a4735b11d77a5e0824
- MD5 93fce295b1c6f3bd2346f0c247657ae7
- SHA1 66bb394249b3f3ec888995f7caccced8f6c028e8
- SHA512 3313f81042cb7a871adbf734f39ed27423397dd5a3c74962edee80042eb75d0ea82a984897020554d00141a6413740c6c08dd1b4756ac19c375be67d30b3c747
- SSDEEP 768:F2bzIzbFLIG0QvvNMgeq1IrKtoVQYPRQoPVyY0JGyW/byXNfMOdbF:F2bzYLmQvigeqMKUWIVynJG3/byXN9db
- TLSH T11A1329479A5AC6D2D85740383827377B19933C72861F5247EF81B88A2CB6F99F52CE43
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 2688 gykgye.exe - Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
- Drops file in System32 directory 2 IoCs
description ioc Process File created C:\Windows\SysWOW64\gykgye.exe jaffacakes118_63359b79f84db25e3b1023e65a460fae93dd8471ddf3e7a4735b11d77a5e0824.exe File opened for modification C:\Windows\SysWOW64\gykgye.exe jaffacakes118_63359b79f84db25e3b1023e65a460fae93dd8471ddf3e7a4735b11d77a5e0824.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\Domain gykgye.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname gykgye.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_63359b79f84db25e3b1023e65a460fae93dd8471ddf3e7a4735b11d77a5e0824.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language gykgye.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe - Suspicious behavior: LoadsDriver 3 IoCs
pid 4 4 4 - Suspicious behavior: RenamesItself 1 IoCs
pid Process 3412 jaffacakes118_63359b79f84db25e3b1023e65a460fae93dd8471ddf3e7a4735b11d77a5e0824.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeIncBasePriorityPrivilege 3412 jaffacakes118_63359b79f84db25e3b1023e65a460fae93dd8471ddf3e7a4735b11d77a5e0824.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 3412 wrote to memory of 3592 3412 jaffacakes118_63359b79f84db25e3b1023e65a460fae93dd8471ddf3e7a4735b11d77a5e0824.exe 90
Processes
-
C:\Users\Admin\AppData\Local\Temp\jaffacakes118_63359b79f84db25e3b1023e65a460fae93dd8471ddf3e7a4735b11d77a5e0824.exe"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_63359b79f84db25e3b1023e65a460fae93dd8471ddf3e7a4735b11d77a5e0824.exe"1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3412 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\JAFFAC~1.EXE > nul2⤵
- System Location Discovery: System Language Discovery
PID:3592
-
-
C:\Windows\SysWOW64\gykgye.exeC:\Windows\SysWOW64\gykgye.exe1⤵
- Executes dropped EXE
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
PID:2688