Analysis
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max time kernel
145s -
max time network
155s -
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 02:49
Static task
static1
Behavioral task
behavioral1
Sample
f284271435132b9487ddf8dd41992578_JaffaCakes118.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
f284271435132b9487ddf8dd41992578_JaffaCakes118.exe
Resource
win10v2004-20240412-en
General
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Target
f284271435132b9487ddf8dd41992578_JaffaCakes118.exe
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Size
14.2MB
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MD5
f284271435132b9487ddf8dd41992578
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SHA1
26ec52a5e08c3370a92e47b5f43a12057cbe8616
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SHA256
8a19788e6391d24385ece1dc77bb1a3f381bfd951faa17ce3925592842d19986
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SHA512
4027ec19d3371d2707855d1e709a48ac96e9c09251a57de035c5e2d0b10cb6ecdeddae9e6c235c524022ff305b794340815fa2ad40a7d6cf287f2304942a0687
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SSDEEP
196608:0zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz:
Malware Config
Extracted
tofsee
43.231.4.6
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 2656 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\vsprttnt\ImagePath = "C:\\Windows\\SysWOW64\\vsprttnt\\agrcujdp.exe" svchost.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
f284271435132b9487ddf8dd41992578_JaffaCakes118.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-4092317236-2027488869-1227795436-1000\Control Panel\International\Geo\Nation f284271435132b9487ddf8dd41992578_JaffaCakes118.exe -
Deletes itself 1 IoCs
Processes:
svchost.exepid process 976 svchost.exe -
Executes dropped EXE 1 IoCs
Processes:
agrcujdp.exepid process 1952 agrcujdp.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
agrcujdp.exedescription pid process target process PID 1952 set thread context of 976 1952 agrcujdp.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 1508 sc.exe 4924 sc.exe 4856 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 1900 4992 WerFault.exe f284271435132b9487ddf8dd41992578_JaffaCakes118.exe 3348 1952 WerFault.exe agrcujdp.exe -
Suspicious use of WriteProcessMemory 23 IoCs
Processes:
f284271435132b9487ddf8dd41992578_JaffaCakes118.exeagrcujdp.exedescription pid process target process PID 4992 wrote to memory of 3860 4992 f284271435132b9487ddf8dd41992578_JaffaCakes118.exe cmd.exe PID 4992 wrote to memory of 3860 4992 f284271435132b9487ddf8dd41992578_JaffaCakes118.exe cmd.exe PID 4992 wrote to memory of 3860 4992 f284271435132b9487ddf8dd41992578_JaffaCakes118.exe cmd.exe PID 4992 wrote to memory of 3540 4992 f284271435132b9487ddf8dd41992578_JaffaCakes118.exe cmd.exe PID 4992 wrote to memory of 3540 4992 f284271435132b9487ddf8dd41992578_JaffaCakes118.exe cmd.exe PID 4992 wrote to memory of 3540 4992 f284271435132b9487ddf8dd41992578_JaffaCakes118.exe cmd.exe PID 4992 wrote to memory of 1508 4992 f284271435132b9487ddf8dd41992578_JaffaCakes118.exe sc.exe PID 4992 wrote to memory of 1508 4992 f284271435132b9487ddf8dd41992578_JaffaCakes118.exe sc.exe PID 4992 wrote to memory of 1508 4992 f284271435132b9487ddf8dd41992578_JaffaCakes118.exe sc.exe PID 4992 wrote to memory of 4924 4992 f284271435132b9487ddf8dd41992578_JaffaCakes118.exe sc.exe PID 4992 wrote to memory of 4924 4992 f284271435132b9487ddf8dd41992578_JaffaCakes118.exe sc.exe PID 4992 wrote to memory of 4924 4992 f284271435132b9487ddf8dd41992578_JaffaCakes118.exe sc.exe PID 4992 wrote to memory of 4856 4992 f284271435132b9487ddf8dd41992578_JaffaCakes118.exe sc.exe PID 4992 wrote to memory of 4856 4992 f284271435132b9487ddf8dd41992578_JaffaCakes118.exe sc.exe PID 4992 wrote to memory of 4856 4992 f284271435132b9487ddf8dd41992578_JaffaCakes118.exe sc.exe PID 4992 wrote to memory of 2656 4992 f284271435132b9487ddf8dd41992578_JaffaCakes118.exe netsh.exe PID 4992 wrote to memory of 2656 4992 f284271435132b9487ddf8dd41992578_JaffaCakes118.exe netsh.exe PID 4992 wrote to memory of 2656 4992 f284271435132b9487ddf8dd41992578_JaffaCakes118.exe netsh.exe PID 1952 wrote to memory of 976 1952 agrcujdp.exe svchost.exe PID 1952 wrote to memory of 976 1952 agrcujdp.exe svchost.exe PID 1952 wrote to memory of 976 1952 agrcujdp.exe svchost.exe PID 1952 wrote to memory of 976 1952 agrcujdp.exe svchost.exe PID 1952 wrote to memory of 976 1952 agrcujdp.exe svchost.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\f284271435132b9487ddf8dd41992578_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\f284271435132b9487ddf8dd41992578_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\vsprttnt\2⤵
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\agrcujdp.exe" C:\Windows\SysWOW64\vsprttnt\2⤵
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" create vsprttnt binPath= "C:\Windows\SysWOW64\vsprttnt\agrcujdp.exe /d\"C:\Users\Admin\AppData\Local\Temp\f284271435132b9487ddf8dd41992578_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 vsprttnt "wifi internet conection"2⤵
- Launches sc.exe
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" start vsprttnt2⤵
- 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 4992 -s 14002⤵
- Program crash
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C:\Windows\SysWOW64\vsprttnt\agrcujdp.exeC:\Windows\SysWOW64\vsprttnt\agrcujdp.exe /d"C:\Users\Admin\AppData\Local\Temp\f284271435132b9487ddf8dd41992578_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 1952 -s 5202⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 4992 -ip 49921⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 1952 -ip 19521⤵
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\agrcujdp.exeFilesize
13.5MB
MD5b63e43c00bfa322a2382ffc8be38c138
SHA162d08102955f80b2f5c626e11d56fe3ef4e2a94c
SHA256dbedfb2517d288d7f75ce69269e14a216885e86c4b3edf76288a9c23d45a1a0b
SHA51268053ef8c0a57f2cbad8a65a61a3f3ffda641c79d0b8e476b933d23dd785362a978f1172ce62d2f05e41d362a2465b15c1e7e19463edd83dc1274ccc9e368d88
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memory/976-15-0x0000000000CA0000-0x0000000000CB5000-memory.dmpFilesize
84KB
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memory/976-12-0x0000000000CA0000-0x0000000000CB5000-memory.dmpFilesize
84KB
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memory/976-17-0x0000000000CA0000-0x0000000000CB5000-memory.dmpFilesize
84KB
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memory/976-18-0x0000000000CA0000-0x0000000000CB5000-memory.dmpFilesize
84KB
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memory/1952-10-0x0000000000B50000-0x0000000000C50000-memory.dmpFilesize
1024KB
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memory/1952-11-0x0000000000400000-0x00000000008EB000-memory.dmpFilesize
4.9MB
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memory/1952-16-0x0000000000400000-0x00000000008EB000-memory.dmpFilesize
4.9MB
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memory/4992-4-0x0000000000400000-0x00000000008EB000-memory.dmpFilesize
4.9MB
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memory/4992-2-0x0000000000B50000-0x0000000000B63000-memory.dmpFilesize
76KB
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memory/4992-7-0x0000000000400000-0x00000000008EB000-memory.dmpFilesize
4.9MB
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memory/4992-8-0x0000000000B50000-0x0000000000B63000-memory.dmpFilesize
76KB
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memory/4992-1-0x0000000000C40000-0x0000000000D40000-memory.dmpFilesize
1024KB