Analysis
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max time kernel
151s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240412-en -
resource tags
arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system -
submitted
15-04-2024 19:12
Static task
static1
Behavioral task
behavioral1
Sample
f1b843cc2d7e3ff9331102932f909119_JaffaCakes118.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
f1b843cc2d7e3ff9331102932f909119_JaffaCakes118.exe
Resource
win10v2004-20240412-en
General
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Target
f1b843cc2d7e3ff9331102932f909119_JaffaCakes118.exe
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Size
14.5MB
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MD5
f1b843cc2d7e3ff9331102932f909119
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SHA1
89981f7f7f6145380929ec8a16a24a0e7d5620d1
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SHA256
3f6b6baa3603a5cbe9eea30bc37a5cd7b17132926cc057b947acf6fdd0c01635
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SHA512
f414671e71039a0d369d6e113511a412fa2a13115078ed07790dfaee16a4149a1775de478b16bf2742a9218bbd348f200b92bfbb4dbb4bb8cb3b975142ff8096
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SSDEEP
24576:tEqa7lYB5DHlommmm2mmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmW:tVl5
Malware Config
Extracted
tofsee
defeatwax.ru
refabyd.info
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 1620 netsh.exe -
Sets service image path in registry 2 TTPs 1 IoCs
Processes:
neexnmnb.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\ejwgcusw\ImagePath = "C:\\Windows\\SysWOW64\\ejwgcusw\\neexnmnb.exe" neexnmnb.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
f1b843cc2d7e3ff9331102932f909119_JaffaCakes118.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-553605503-2331009851-2137262461-1000\Control Panel\International\Geo\Nation f1b843cc2d7e3ff9331102932f909119_JaffaCakes118.exe -
Deletes itself 1 IoCs
Processes:
svchost.exepid process 4492 svchost.exe -
Executes dropped EXE 1 IoCs
Processes:
neexnmnb.exepid process 2608 neexnmnb.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
neexnmnb.exedescription pid process target process PID 2608 set thread context of 4492 2608 neexnmnb.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 1732 sc.exe 2924 sc.exe 1264 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 2560 4656 WerFault.exe f1b843cc2d7e3ff9331102932f909119_JaffaCakes118.exe 1288 2608 WerFault.exe neexnmnb.exe -
Suspicious use of WriteProcessMemory 23 IoCs
Processes:
f1b843cc2d7e3ff9331102932f909119_JaffaCakes118.exeneexnmnb.exedescription pid process target process PID 4656 wrote to memory of 1920 4656 f1b843cc2d7e3ff9331102932f909119_JaffaCakes118.exe cmd.exe PID 4656 wrote to memory of 1920 4656 f1b843cc2d7e3ff9331102932f909119_JaffaCakes118.exe cmd.exe PID 4656 wrote to memory of 1920 4656 f1b843cc2d7e3ff9331102932f909119_JaffaCakes118.exe cmd.exe PID 4656 wrote to memory of 4632 4656 f1b843cc2d7e3ff9331102932f909119_JaffaCakes118.exe cmd.exe PID 4656 wrote to memory of 4632 4656 f1b843cc2d7e3ff9331102932f909119_JaffaCakes118.exe cmd.exe PID 4656 wrote to memory of 4632 4656 f1b843cc2d7e3ff9331102932f909119_JaffaCakes118.exe cmd.exe PID 4656 wrote to memory of 1732 4656 f1b843cc2d7e3ff9331102932f909119_JaffaCakes118.exe sc.exe PID 4656 wrote to memory of 1732 4656 f1b843cc2d7e3ff9331102932f909119_JaffaCakes118.exe sc.exe PID 4656 wrote to memory of 1732 4656 f1b843cc2d7e3ff9331102932f909119_JaffaCakes118.exe sc.exe PID 4656 wrote to memory of 2924 4656 f1b843cc2d7e3ff9331102932f909119_JaffaCakes118.exe sc.exe PID 4656 wrote to memory of 2924 4656 f1b843cc2d7e3ff9331102932f909119_JaffaCakes118.exe sc.exe PID 4656 wrote to memory of 2924 4656 f1b843cc2d7e3ff9331102932f909119_JaffaCakes118.exe sc.exe PID 4656 wrote to memory of 1264 4656 f1b843cc2d7e3ff9331102932f909119_JaffaCakes118.exe sc.exe PID 4656 wrote to memory of 1264 4656 f1b843cc2d7e3ff9331102932f909119_JaffaCakes118.exe sc.exe PID 4656 wrote to memory of 1264 4656 f1b843cc2d7e3ff9331102932f909119_JaffaCakes118.exe sc.exe PID 4656 wrote to memory of 1620 4656 f1b843cc2d7e3ff9331102932f909119_JaffaCakes118.exe netsh.exe PID 4656 wrote to memory of 1620 4656 f1b843cc2d7e3ff9331102932f909119_JaffaCakes118.exe netsh.exe PID 4656 wrote to memory of 1620 4656 f1b843cc2d7e3ff9331102932f909119_JaffaCakes118.exe netsh.exe PID 2608 wrote to memory of 4492 2608 neexnmnb.exe svchost.exe PID 2608 wrote to memory of 4492 2608 neexnmnb.exe svchost.exe PID 2608 wrote to memory of 4492 2608 neexnmnb.exe svchost.exe PID 2608 wrote to memory of 4492 2608 neexnmnb.exe svchost.exe PID 2608 wrote to memory of 4492 2608 neexnmnb.exe svchost.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\f1b843cc2d7e3ff9331102932f909119_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\f1b843cc2d7e3ff9331102932f909119_JaffaCakes118.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4656 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ejwgcusw\2⤵PID:1920
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\neexnmnb.exe" C:\Windows\SysWOW64\ejwgcusw\2⤵PID:4632
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" create ejwgcusw binPath= "C:\Windows\SysWOW64\ejwgcusw\neexnmnb.exe /d\"C:\Users\Admin\AppData\Local\Temp\f1b843cc2d7e3ff9331102932f909119_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"2⤵
- Launches sc.exe
PID:1732 -
C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" description ejwgcusw "wifi internet conection"2⤵
- Launches sc.exe
PID:2924 -
C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" start ejwgcusw2⤵
- Launches sc.exe
PID:1264 -
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
PID:1620 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4656 -s 10362⤵
- Program crash
PID:2560
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C:\Windows\SysWOW64\ejwgcusw\neexnmnb.exeC:\Windows\SysWOW64\ejwgcusw\neexnmnb.exe /d"C:\Users\Admin\AppData\Local\Temp\f1b843cc2d7e3ff9331102932f909119_JaffaCakes118.exe"1⤵
- Sets service image path in registry
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2608 -
C:\Windows\SysWOW64\svchost.exesvchost.exe2⤵
- Deletes itself
PID:4492 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2608 -s 5162⤵
- Program crash
PID:1288
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4656 -ip 46561⤵PID:3912
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 2608 -ip 26081⤵PID:3636
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
2Windows Service
2Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
2Windows Service
2Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
10.1MB
MD5cb7e48510c2495afbebd02f8a12123f3
SHA16af9e3ef99502131ec2a3ddc10c7fe4a77c288d6
SHA2562bdf84faad80a10633b0ccbacdf0e279d6adeabe0ef76768d5ae186cd58a7b16
SHA5124796248e362da4ca66341f46e2a4d6ae7b4d2651ea2cd21b93786c6543c56cbc736427372f829c181a78f5101a68b3cad4c41f49c801aeb25b7805711ff85265