d4a85af9fa0581eb188855a9afd79ed66ac9a14ef1554afedb6766eca4b012af

Analysis

max time kernel
149s
max time network
137s
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, 13:32

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
jaffacakes118_Worm.Win32.WBNA.yjh.exe
Size 128KB
Sample261014-qs8tkagd52
SHA256 d4a85af9fa0581eb188855a9afd79ed66ac9a14ef1554afedb6766eca4b012af
MD5 355873cf9214ff6dfdf1a24848059c9e
SHA1 b866b1058a560d3b94c963da1722a520155d8904
SHA512 beba9ab8a776ce4ea4bbab4cd3b3e5da4bc06c192490ebc7b612e73dfdd1103daa4e7f6736679086edc2f2e50bbbe4e65d8e6ae3ef42317ebfc1e21bec69058e
SSDEEP 1536:w4RonnP0hjtM00so4pzEACaRBLAoVH1lOQYJ6iibQRVNNhK5a5aeSNg2w4DewJAz:HRo0ZeNso4pzwsHh1hbaEdEA
TLSH
T172D3F622A291EA7AC55587F01E294794953AFC3105D69E13F3C1BB397AB2E93D732303
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

discovery execution

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-747854149-4118156852-591593384-1000\Control Panel\International\Geo\Nation	jaffacakes118_Worm.Win32.WBNA.yjh.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	jaffacakes118_Worm.Win32.WBNA.yjh.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	jaffacakes118_Worm.Win32.WBNA.yjh.exe

Discovers running processes 1 TTPs 1 IoCs

Running process information can be used to identify security tools or plan follow-on actions.

discovery

Process Discovery

T1057

pid	Process
960	tasklist.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Executes a command shell one-liner 1 TTPs 1 IoCs

Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

execution

Windows Command Shell

T1059.003

pid	Process
3828	cmd.exe

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.

discovery

System Network Configuration Discovery

T1016

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	jaffacakes118_Worm.Win32.WBNA.yjh.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	jaffacakes118_Worm.Win32.WBNA.yjh.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.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jaffacakes118_Worm.Win32.WBNA.yjh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tasklist.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	960	tasklist.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4332	jaffacakes118_Worm.Win32.WBNA.yjh.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4332 wrote to memory of 3828	4332	jaffacakes118_Worm.Win32.WBNA.yjh.exe	87
PID 3828 wrote to memory of 960	3828	cmd.exe	89

C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Worm.Win32.WBNA.yjh.exe
"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Worm.Win32.WBNA.yjh.exe"
1⤵
- Checks computer location settings
- Maps connected drives based on registry
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4332
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c tasklist&&del jaffacakes118_Worm.Win32.WBNA.yjh.
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3828
- - C:\Windows\SysWOW64\tasklist.exe
    tasklist
    3⤵
    - Discovers running processes
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:960