a36c7fab13794fea70545fcb2970dc93352ecca163b5753022e4e275ef3c3a32

Analysis

max time kernel
149s
max time network
135s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
18/10/2026, 16:03

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General

Target
jaffacakes118_Worm.Win32.Vobfus.etzm.exe
Size 268KB
Sample261018-thfa2sew8j
SHA256 a36c7fab13794fea70545fcb2970dc93352ecca163b5753022e4e275ef3c3a32
MD5 02a0b5b57d8a4472714049f0b36a1598
SHA1 a0949d2bdb0012555aaf6d474ceb078e15d97c2b
SHA512 001d92e72effc6394d4d148e88d3748f720fd28159f667dc670b1fd128d41761600c166a2b7e5fcd0d9591fa38c7a331e101424540afcae35f7d28f6c7918738
SSDEEP 6144:SEwz2Eu+yV2PL9JhCNjKV6MG31luID8NLJTPxhMbmNPjiiSI0:ShMs0Nz8tJTZhMiiN
TLSH
T1D4445051AA50503FF85288F0381BA796BA1E1E7616A0FC07B7D19B9834746E3B6F131F
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

defense_evasion discovery persistence

Malware Config

Signatures

Modifies visibility of hidden/system files in Explorer 2 TTPs 2 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-1404337215-1550464601-2805570857-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	jaffacakes118_Worm.Win32.Vobfus.etzm.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1404337215-1550464601-2805570857-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	weatau.exe

Executes dropped EXE 1 IoCs

pid	Process
2308	weatau.exe

Adds Run key to start application 2 TTPs 27 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1404337215-1550464601-2805570857-1000\Software\Microsoft\Windows\CurrentVersion\Run\weatau = "C:\\Users\\Admin\\weatau.exe /e"	weatau.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1404337215-1550464601-2805570857-1000\Software\Microsoft\Windows\CurrentVersion\Run\weatau = "C:\\Users\\Admin\\weatau.exe /t"	weatau.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1404337215-1550464601-2805570857-1000\Software\Microsoft\Windows\CurrentVersion\Run\weatau = "C:\\Users\\Admin\\weatau.exe /i"	weatau.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1404337215-1550464601-2805570857-1000\Software\Microsoft\Windows\CurrentVersion\Run\weatau = "C:\\Users\\Admin\\weatau.exe /d"	weatau.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1404337215-1550464601-2805570857-1000\Software\Microsoft\Windows\CurrentVersion\Run\weatau = "C:\\Users\\Admin\\weatau.exe /p"	weatau.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1404337215-1550464601-2805570857-1000\Software\Microsoft\Windows\CurrentVersion\Run\weatau = "C:\\Users\\Admin\\weatau.exe /f"	weatau.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1404337215-1550464601-2805570857-1000\Software\Microsoft\Windows\CurrentVersion\Run\weatau = "C:\\Users\\Admin\\weatau.exe /n"	weatau.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1404337215-1550464601-2805570857-1000\Software\Microsoft\Windows\CurrentVersion\Run\weatau = "C:\\Users\\Admin\\weatau.exe /b"	weatau.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1404337215-1550464601-2805570857-1000\Software\Microsoft\Windows\CurrentVersion\Run\weatau = "C:\\Users\\Admin\\weatau.exe /v"	weatau.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1404337215-1550464601-2805570857-1000\Software\Microsoft\Windows\CurrentVersion\Run\weatau = "C:\\Users\\Admin\\weatau.exe /e"	jaffacakes118_Worm.Win32.Vobfus.etzm.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1404337215-1550464601-2805570857-1000\Software\Microsoft\Windows\CurrentVersion\Run\weatau = "C:\\Users\\Admin\\weatau.exe /q"	weatau.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1404337215-1550464601-2805570857-1000\Software\Microsoft\Windows\CurrentVersion\Run\weatau = "C:\\Users\\Admin\\weatau.exe /h"	weatau.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1404337215-1550464601-2805570857-1000\Software\Microsoft\Windows\CurrentVersion\Run\weatau = "C:\\Users\\Admin\\weatau.exe /z"	weatau.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1404337215-1550464601-2805570857-1000\Software\Microsoft\Windows\CurrentVersion\Run\weatau = "C:\\Users\\Admin\\weatau.exe /u"	weatau.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1404337215-1550464601-2805570857-1000\Software\Microsoft\Windows\CurrentVersion\Run\weatau = "C:\\Users\\Admin\\weatau.exe /o"	weatau.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1404337215-1550464601-2805570857-1000\Software\Microsoft\Windows\CurrentVersion\Run\weatau = "C:\\Users\\Admin\\weatau.exe /l"	weatau.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1404337215-1550464601-2805570857-1000\Software\Microsoft\Windows\CurrentVersion\Run\weatau = "C:\\Users\\Admin\\weatau.exe /a"	weatau.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1404337215-1550464601-2805570857-1000\Software\Microsoft\Windows\CurrentVersion\Run\weatau = "C:\\Users\\Admin\\weatau.exe /c"	weatau.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1404337215-1550464601-2805570857-1000\Software\Microsoft\Windows\CurrentVersion\Run\weatau = "C:\\Users\\Admin\\weatau.exe /r"	weatau.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1404337215-1550464601-2805570857-1000\Software\Microsoft\Windows\CurrentVersion\Run\weatau = "C:\\Users\\Admin\\weatau.exe /m"	weatau.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1404337215-1550464601-2805570857-1000\Software\Microsoft\Windows\CurrentVersion\Run\weatau = "C:\\Users\\Admin\\weatau.exe /s"	weatau.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1404337215-1550464601-2805570857-1000\Software\Microsoft\Windows\CurrentVersion\Run\weatau = "C:\\Users\\Admin\\weatau.exe /w"	weatau.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1404337215-1550464601-2805570857-1000\Software\Microsoft\Windows\CurrentVersion\Run\weatau = "C:\\Users\\Admin\\weatau.exe /y"	weatau.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1404337215-1550464601-2805570857-1000\Software\Microsoft\Windows\CurrentVersion\Run\weatau = "C:\\Users\\Admin\\weatau.exe /j"	weatau.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1404337215-1550464601-2805570857-1000\Software\Microsoft\Windows\CurrentVersion\Run\weatau = "C:\\Users\\Admin\\weatau.exe /x"	weatau.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1404337215-1550464601-2805570857-1000\Software\Microsoft\Windows\CurrentVersion\Run\weatau = "C:\\Users\\Admin\\weatau.exe /g"	weatau.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1404337215-1550464601-2805570857-1000\Software\Microsoft\Windows\CurrentVersion\Run\weatau = "C:\\Users\\Admin\\weatau.exe /k"	weatau.exe

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

System Information Discovery
T1082

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.Vobfus.etzm.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	jaffacakes118_Worm.Win32.Vobfus.etzm.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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.Vobfus.etzm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	weatau.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4976	jaffacakes118_Worm.Win32.Vobfus.etzm.exe
4976	jaffacakes118_Worm.Win32.Vobfus.etzm.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe
2308	weatau.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4976	jaffacakes118_Worm.Win32.Vobfus.etzm.exe
2308	weatau.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 4976 wrote to memory of 2308	4976	jaffacakes118_Worm.Win32.Vobfus.etzm.exe	88

C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Worm.Win32.Vobfus.etzm.exe
"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Worm.Win32.Vobfus.etzm.exe"
1⤵
- Modifies visibility of hidden/system files in Explorer
- 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 use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4976
- C:\Users\Admin\weatau.exe
  "C:\Users\Admin\weatau.exe"
  2⤵
  - Modifies visibility of hidden/system files in Explorer
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  PID:2308

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

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

weatau.exe

Path C:\Users\Admin\weatau.exe
Size 268KB
SHA256 e23b1ae374c6f178f22e7574e8eb2deaa70bac2f5c763819e060a59c8b832b17
MD5 3fc0eb7e9a758baa67635dcbabd5aca1
SHA1 1dc58cf258b54238b37a635d24d1cda1e21586e1
SHA512 324864363adee43cbc79e65d4bedb4c6a05f673e2d25ff4f149d622367b8eac8e2266be24736277d3cf113430ccbaec2755de657b65705efdfac440854dacf8d
SSDEEP 6144:SFwz2Eu+yV2PL9JhCNjKV6MG31luID8NLJTPxhMbmNPjiiSIx:S2Ms0Nz8tJTZhMiiI
TLSH
T15F445F51AA50503FF85288F0381BA796BA1E1E7616A0FC07B7D19B9834746E3B6F131F
MD5 SHA1 SHA512 SSDEEP TLSH

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