Analysis
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max time kernel
150s -
max time network
133s -
platform
windows10-2004_x64 -
resource
win10v2004-20240412-en -
resource tags
arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system -
submitted
16-04-2024 08:24
Static task
static1
Behavioral task
behavioral1
Sample
f315b58d3cfb7541cc071900a1e00671_JaffaCakes118.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
f315b58d3cfb7541cc071900a1e00671_JaffaCakes118.exe
Resource
win10v2004-20240412-en
General
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Target
f315b58d3cfb7541cc071900a1e00671_JaffaCakes118.exe
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Size
13.7MB
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MD5
f315b58d3cfb7541cc071900a1e00671
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SHA1
59e2447b1d9be5bdadbbd1b67da60631f6e123eb
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SHA256
c09c6a7691b46bfea06316df79f17ed85a35610145b7e916417dfc557418bba2
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SHA512
03d9bcec97ff66d779685f0854d1fce707a1c0c08d4b0f3e1298ea9f9e77cb0ed44efb1190f8029f9f3d27808d7c880f6dbfdccb0493dea981f10dda7fb12447
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SSDEEP
49152:g1yvllllllllllllllllllllllllllllllllllllllllllllllllllllllllllln:gA
Malware Config
Extracted
tofsee
43.231.4.7
lazystax.ru
Signatures
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Creates new service(s) 1 TTPs
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Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 3912 netsh.exe -
Sets service image path in registry 2 TTPs 1 IoCs
Processes:
svchost.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\lgteqbhk\ImagePath = "C:\\Windows\\SysWOW64\\lgteqbhk\\xjiwhrzt.exe" svchost.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
f315b58d3cfb7541cc071900a1e00671_JaffaCakes118.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-776854024-226333264-2052258302-1000\Control Panel\International\Geo\Nation f315b58d3cfb7541cc071900a1e00671_JaffaCakes118.exe -
Deletes itself 1 IoCs
Processes:
svchost.exepid process 4108 svchost.exe -
Executes dropped EXE 1 IoCs
Processes:
xjiwhrzt.exepid process 2248 xjiwhrzt.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
xjiwhrzt.exedescription pid process target process PID 2248 set thread context of 4108 2248 xjiwhrzt.exe svchost.exe -
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.
Processes:
sc.exesc.exesc.exepid process 4136 sc.exe 4784 sc.exe 4412 sc.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 2 IoCs
Processes:
WerFault.exeWerFault.exepid pid_target process target process 2768 4720 WerFault.exe f315b58d3cfb7541cc071900a1e00671_JaffaCakes118.exe 916 2248 WerFault.exe xjiwhrzt.exe -
Suspicious use of WriteProcessMemory 23 IoCs
Processes:
f315b58d3cfb7541cc071900a1e00671_JaffaCakes118.exexjiwhrzt.exedescription pid process target process PID 4720 wrote to memory of 2324 4720 f315b58d3cfb7541cc071900a1e00671_JaffaCakes118.exe cmd.exe PID 4720 wrote to memory of 2324 4720 f315b58d3cfb7541cc071900a1e00671_JaffaCakes118.exe cmd.exe PID 4720 wrote to memory of 2324 4720 f315b58d3cfb7541cc071900a1e00671_JaffaCakes118.exe cmd.exe PID 4720 wrote to memory of 4608 4720 f315b58d3cfb7541cc071900a1e00671_JaffaCakes118.exe cmd.exe PID 4720 wrote to memory of 4608 4720 f315b58d3cfb7541cc071900a1e00671_JaffaCakes118.exe cmd.exe PID 4720 wrote to memory of 4608 4720 f315b58d3cfb7541cc071900a1e00671_JaffaCakes118.exe cmd.exe PID 4720 wrote to memory of 4136 4720 f315b58d3cfb7541cc071900a1e00671_JaffaCakes118.exe sc.exe PID 4720 wrote to memory of 4136 4720 f315b58d3cfb7541cc071900a1e00671_JaffaCakes118.exe sc.exe PID 4720 wrote to memory of 4136 4720 f315b58d3cfb7541cc071900a1e00671_JaffaCakes118.exe sc.exe PID 4720 wrote to memory of 4784 4720 f315b58d3cfb7541cc071900a1e00671_JaffaCakes118.exe sc.exe PID 4720 wrote to memory of 4784 4720 f315b58d3cfb7541cc071900a1e00671_JaffaCakes118.exe sc.exe PID 4720 wrote to memory of 4784 4720 f315b58d3cfb7541cc071900a1e00671_JaffaCakes118.exe sc.exe PID 4720 wrote to memory of 4412 4720 f315b58d3cfb7541cc071900a1e00671_JaffaCakes118.exe sc.exe PID 4720 wrote to memory of 4412 4720 f315b58d3cfb7541cc071900a1e00671_JaffaCakes118.exe sc.exe PID 4720 wrote to memory of 4412 4720 f315b58d3cfb7541cc071900a1e00671_JaffaCakes118.exe sc.exe PID 4720 wrote to memory of 3912 4720 f315b58d3cfb7541cc071900a1e00671_JaffaCakes118.exe netsh.exe PID 4720 wrote to memory of 3912 4720 f315b58d3cfb7541cc071900a1e00671_JaffaCakes118.exe netsh.exe PID 4720 wrote to memory of 3912 4720 f315b58d3cfb7541cc071900a1e00671_JaffaCakes118.exe netsh.exe PID 2248 wrote to memory of 4108 2248 xjiwhrzt.exe svchost.exe PID 2248 wrote to memory of 4108 2248 xjiwhrzt.exe svchost.exe PID 2248 wrote to memory of 4108 2248 xjiwhrzt.exe svchost.exe PID 2248 wrote to memory of 4108 2248 xjiwhrzt.exe svchost.exe PID 2248 wrote to memory of 4108 2248 xjiwhrzt.exe svchost.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\f315b58d3cfb7541cc071900a1e00671_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\f315b58d3cfb7541cc071900a1e00671_JaffaCakes118.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\lgteqbhk\2⤵
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\xjiwhrzt.exe" C:\Windows\SysWOW64\lgteqbhk\2⤵
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" create lgteqbhk binPath= "C:\Windows\SysWOW64\lgteqbhk\xjiwhrzt.exe /d\"C:\Users\Admin\AppData\Local\Temp\f315b58d3cfb7541cc071900a1e00671_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"2⤵
- Launches sc.exe
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" description lgteqbhk "wifi internet conection"2⤵
- Launches sc.exe
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" start lgteqbhk2⤵
- Launches sc.exe
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C:\Windows\SysWOW64\netsh.exe"C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul2⤵
- Modifies Windows Firewall
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4720 -s 7842⤵
- Program crash
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C:\Windows\SysWOW64\lgteqbhk\xjiwhrzt.exeC:\Windows\SysWOW64\lgteqbhk\xjiwhrzt.exe /d"C:\Users\Admin\AppData\Local\Temp\f315b58d3cfb7541cc071900a1e00671_JaffaCakes118.exe"1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\svchost.exesvchost.exe2⤵
- Sets service image path in registry
- Deletes itself
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2248 -s 5082⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 4720 -ip 47201⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 2248 -ip 22481⤵
Network
MITRE ATT&CK Matrix ATT&CK v13
Persistence
Create or Modify System Process
2Windows Service
2Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Privilege Escalation
Create or Modify System Process
2Windows Service
2Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\xjiwhrzt.exeFilesize
13.1MB
MD5c007205faa44af7d9e8a53ba80a0f65a
SHA154627b1dbc7250b279b45e94551545b292208d60
SHA25684f72b287e9d66f441072032af4d54336f21499de289226f321a1aad7d5ee57a
SHA512051f4b9c699d2f8d1711ced9043b1ef4314daad273b60ae07e58966637e1a63c6fe0f18ec26bf7529a91476f47b8bc87f8bad223250809b348a9598854718c99
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memory/2248-10-0x0000000000C70000-0x0000000000D70000-memory.dmpFilesize
1024KB
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memory/2248-12-0x0000000000400000-0x0000000000C20000-memory.dmpFilesize
8.1MB
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memory/2248-17-0x0000000000400000-0x0000000000C20000-memory.dmpFilesize
8.1MB
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memory/4108-11-0x0000000000D50000-0x0000000000D65000-memory.dmpFilesize
84KB
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memory/4108-16-0x0000000000D50000-0x0000000000D65000-memory.dmpFilesize
84KB
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memory/4108-18-0x0000000000D50000-0x0000000000D65000-memory.dmpFilesize
84KB
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memory/4108-19-0x0000000000D50000-0x0000000000D65000-memory.dmpFilesize
84KB
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memory/4720-4-0x0000000000400000-0x0000000000C20000-memory.dmpFilesize
8.1MB
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memory/4720-2-0x0000000000DC0000-0x0000000000DD3000-memory.dmpFilesize
76KB
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memory/4720-7-0x0000000000400000-0x0000000000C20000-memory.dmpFilesize
8.1MB
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memory/4720-8-0x0000000000DC0000-0x0000000000DD3000-memory.dmpFilesize
76KB
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memory/4720-1-0x0000000000E00000-0x0000000000F00000-memory.dmpFilesize
1024KB