Analysis
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max time kernel
153s -
max time network
157s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
15-04-2024 17:55
Static task
static1
Behavioral task
behavioral1
Sample
f1a4db415a4dd63a80f0b8cc7a2d2362_JaffaCakes118.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
f1a4db415a4dd63a80f0b8cc7a2d2362_JaffaCakes118.exe
Resource
win10v2004-20240226-en
General
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Target
f1a4db415a4dd63a80f0b8cc7a2d2362_JaffaCakes118.exe
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Size
11.1MB
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MD5
f1a4db415a4dd63a80f0b8cc7a2d2362
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SHA1
d1287fa03a80d1626605431cd341e9d5049afba5
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SHA256
87140618703529cf84c6e119ecde2b6faeabba17cd73a817ee17856b2692bb70
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SHA512
15a8b53f82a86fabc1a84f52b4b2fe5e59bac869d18996465b355932f7c286250790e54dada414afef270b9c31d5bd9cbfe2fc3aa0e20badc35b3f7f658dfdf5
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SSDEEP
12288:WiuYCjGjdPej7mB+DCXRFRFRFRFRFRFRFRFRFRFRFRFRFRFRFRFRFRFRFRFRFRFJ:RCjGDoD
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 752 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\rpdydnxe\ImagePath = "C:\\Windows\\SysWOW64\\rpdydnxe\\vvobnkjl.exe" svchost.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
f1a4db415a4dd63a80f0b8cc7a2d2362_JaffaCakes118.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation f1a4db415a4dd63a80f0b8cc7a2d2362_JaffaCakes118.exe -
Deletes itself 1 IoCs
Processes:
svchost.exepid process 3744 svchost.exe -
Executes dropped EXE 1 IoCs
Processes:
vvobnkjl.exepid process 2100 vvobnkjl.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
vvobnkjl.exedescription pid process target process PID 2100 set thread context of 3744 2100 vvobnkjl.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 4180 sc.exe 1060 sc.exe 4112 sc.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 3692 2100 WerFault.exe vvobnkjl.exe -
Suspicious use of WriteProcessMemory 23 IoCs
Processes:
f1a4db415a4dd63a80f0b8cc7a2d2362_JaffaCakes118.exevvobnkjl.exedescription pid process target process PID 4504 wrote to memory of 552 4504 f1a4db415a4dd63a80f0b8cc7a2d2362_JaffaCakes118.exe cmd.exe PID 4504 wrote to memory of 552 4504 f1a4db415a4dd63a80f0b8cc7a2d2362_JaffaCakes118.exe cmd.exe PID 4504 wrote to memory of 552 4504 f1a4db415a4dd63a80f0b8cc7a2d2362_JaffaCakes118.exe cmd.exe PID 4504 wrote to memory of 456 4504 f1a4db415a4dd63a80f0b8cc7a2d2362_JaffaCakes118.exe cmd.exe PID 4504 wrote to memory of 456 4504 f1a4db415a4dd63a80f0b8cc7a2d2362_JaffaCakes118.exe cmd.exe PID 4504 wrote to memory of 456 4504 f1a4db415a4dd63a80f0b8cc7a2d2362_JaffaCakes118.exe cmd.exe PID 4504 wrote to memory of 4180 4504 f1a4db415a4dd63a80f0b8cc7a2d2362_JaffaCakes118.exe sc.exe PID 4504 wrote to memory of 4180 4504 f1a4db415a4dd63a80f0b8cc7a2d2362_JaffaCakes118.exe sc.exe PID 4504 wrote to memory of 4180 4504 f1a4db415a4dd63a80f0b8cc7a2d2362_JaffaCakes118.exe sc.exe PID 4504 wrote to memory of 1060 4504 f1a4db415a4dd63a80f0b8cc7a2d2362_JaffaCakes118.exe sc.exe PID 4504 wrote to memory of 1060 4504 f1a4db415a4dd63a80f0b8cc7a2d2362_JaffaCakes118.exe sc.exe PID 4504 wrote to memory of 1060 4504 f1a4db415a4dd63a80f0b8cc7a2d2362_JaffaCakes118.exe sc.exe PID 4504 wrote to memory of 4112 4504 f1a4db415a4dd63a80f0b8cc7a2d2362_JaffaCakes118.exe sc.exe PID 4504 wrote to memory of 4112 4504 f1a4db415a4dd63a80f0b8cc7a2d2362_JaffaCakes118.exe sc.exe PID 4504 wrote to memory of 4112 4504 f1a4db415a4dd63a80f0b8cc7a2d2362_JaffaCakes118.exe sc.exe PID 4504 wrote to memory of 752 4504 f1a4db415a4dd63a80f0b8cc7a2d2362_JaffaCakes118.exe netsh.exe PID 4504 wrote to memory of 752 4504 f1a4db415a4dd63a80f0b8cc7a2d2362_JaffaCakes118.exe netsh.exe PID 4504 wrote to memory of 752 4504 f1a4db415a4dd63a80f0b8cc7a2d2362_JaffaCakes118.exe netsh.exe PID 2100 wrote to memory of 3744 2100 vvobnkjl.exe svchost.exe PID 2100 wrote to memory of 3744 2100 vvobnkjl.exe svchost.exe PID 2100 wrote to memory of 3744 2100 vvobnkjl.exe svchost.exe PID 2100 wrote to memory of 3744 2100 vvobnkjl.exe svchost.exe PID 2100 wrote to memory of 3744 2100 vvobnkjl.exe svchost.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\f1a4db415a4dd63a80f0b8cc7a2d2362_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\f1a4db415a4dd63a80f0b8cc7a2d2362_JaffaCakes118.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4504 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rpdydnxe\2⤵PID:552
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\vvobnkjl.exe" C:\Windows\SysWOW64\rpdydnxe\2⤵PID:456
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" create rpdydnxe binPath= "C:\Windows\SysWOW64\rpdydnxe\vvobnkjl.exe /d\"C:\Users\Admin\AppData\Local\Temp\f1a4db415a4dd63a80f0b8cc7a2d2362_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"2⤵
- Launches sc.exe
PID:4180 -
C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" description rpdydnxe "wifi internet conection"2⤵
- Launches sc.exe
PID:1060 -
C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" start rpdydnxe2⤵
- Launches sc.exe
PID:4112 -
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:752
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C:\Windows\SysWOW64\rpdydnxe\vvobnkjl.exeC:\Windows\SysWOW64\rpdydnxe\vvobnkjl.exe /d"C:\Users\Admin\AppData\Local\Temp\f1a4db415a4dd63a80f0b8cc7a2d2362_JaffaCakes118.exe"1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2100 -
C:\Windows\SysWOW64\svchost.exesvchost.exe2⤵
- Sets service image path in registry
- Deletes itself
PID:3744 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2100 -s 5122⤵
- Program crash
PID:3692
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 2100 -ip 21001⤵PID:5040
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1424 --field-trial-handle=2180,i,12780723798465539942,12010519452607841069,262144 --variations-seed-version /prefetch:81⤵PID:4600
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
14.4MB
MD582e20f8d817f417fa627bac370bb73e2
SHA1a9780f4880e6fa06b7c5fddf900b9549163b81d9
SHA2561e7636012b67b7dfdaf2637d1b607caf2dd2306ee02d6ce09bd20911712c80a1
SHA5120a33d53be9723edaf1f71a7e29bdd4d67fd71a0dd1ad5b002fbba1a10e7196033db4ca29b7ac7377c97af189f3ac63b33b45635a0ee137372f789b98f06ed85f