Analysis
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max time kernel
145s -
max time network
128s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
17-04-2024 09:16
Static task
static1
Behavioral task
behavioral1
Sample
f57318e139826014dbcc8f0eaad35e40_JaffaCakes118.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
f57318e139826014dbcc8f0eaad35e40_JaffaCakes118.exe
Resource
win10v2004-20240412-en
General
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Target
f57318e139826014dbcc8f0eaad35e40_JaffaCakes118.exe
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Size
12.5MB
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MD5
f57318e139826014dbcc8f0eaad35e40
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SHA1
39d26c2ffbb92c2f5b443ae094a84b1bf760aea2
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SHA256
97d0ba8f894b85f3f70a6178237202b905ee26b085419fef0710a06f2b715e07
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SHA512
e0a9568659e0ebd2a64b4c4e1fb070e2c4b946ec10a63b301221b5b9528c532da9ea90f535a8037e514faf210649a214bca001d3e4b45f1ac5dd09640a345b4c
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SSDEEP
49152:g8yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyye:g
Malware Config
Extracted
tofsee
43.231.4.6
lazystax.ru
Signatures
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Processes:
svchost.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\xkavcbyn = "0" svchost.exe -
Creates new service(s) 1 TTPs
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Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 2964 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\xkavcbyn\ImagePath = "C:\\Windows\\SysWOW64\\xkavcbyn\\ycnfjqrx.exe" svchost.exe -
Deletes itself 1 IoCs
Processes:
svchost.exepid process 2504 svchost.exe -
Executes dropped EXE 1 IoCs
Processes:
ycnfjqrx.exepid process 2604 ycnfjqrx.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
ycnfjqrx.exedescription pid process target process PID 2604 set thread context of 2504 2604 ycnfjqrx.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 2148 sc.exe 2664 sc.exe 2588 sc.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 30 IoCs
Processes:
f57318e139826014dbcc8f0eaad35e40_JaffaCakes118.exeycnfjqrx.exedescription pid process target process PID 2512 wrote to memory of 2568 2512 f57318e139826014dbcc8f0eaad35e40_JaffaCakes118.exe cmd.exe PID 2512 wrote to memory of 2568 2512 f57318e139826014dbcc8f0eaad35e40_JaffaCakes118.exe cmd.exe PID 2512 wrote to memory of 2568 2512 f57318e139826014dbcc8f0eaad35e40_JaffaCakes118.exe cmd.exe PID 2512 wrote to memory of 2568 2512 f57318e139826014dbcc8f0eaad35e40_JaffaCakes118.exe cmd.exe PID 2512 wrote to memory of 2680 2512 f57318e139826014dbcc8f0eaad35e40_JaffaCakes118.exe cmd.exe PID 2512 wrote to memory of 2680 2512 f57318e139826014dbcc8f0eaad35e40_JaffaCakes118.exe cmd.exe PID 2512 wrote to memory of 2680 2512 f57318e139826014dbcc8f0eaad35e40_JaffaCakes118.exe cmd.exe PID 2512 wrote to memory of 2680 2512 f57318e139826014dbcc8f0eaad35e40_JaffaCakes118.exe cmd.exe PID 2512 wrote to memory of 2148 2512 f57318e139826014dbcc8f0eaad35e40_JaffaCakes118.exe sc.exe PID 2512 wrote to memory of 2148 2512 f57318e139826014dbcc8f0eaad35e40_JaffaCakes118.exe sc.exe PID 2512 wrote to memory of 2148 2512 f57318e139826014dbcc8f0eaad35e40_JaffaCakes118.exe sc.exe PID 2512 wrote to memory of 2148 2512 f57318e139826014dbcc8f0eaad35e40_JaffaCakes118.exe sc.exe PID 2512 wrote to memory of 2664 2512 f57318e139826014dbcc8f0eaad35e40_JaffaCakes118.exe sc.exe PID 2512 wrote to memory of 2664 2512 f57318e139826014dbcc8f0eaad35e40_JaffaCakes118.exe sc.exe PID 2512 wrote to memory of 2664 2512 f57318e139826014dbcc8f0eaad35e40_JaffaCakes118.exe sc.exe PID 2512 wrote to memory of 2664 2512 f57318e139826014dbcc8f0eaad35e40_JaffaCakes118.exe sc.exe PID 2512 wrote to memory of 2588 2512 f57318e139826014dbcc8f0eaad35e40_JaffaCakes118.exe sc.exe PID 2512 wrote to memory of 2588 2512 f57318e139826014dbcc8f0eaad35e40_JaffaCakes118.exe sc.exe PID 2512 wrote to memory of 2588 2512 f57318e139826014dbcc8f0eaad35e40_JaffaCakes118.exe sc.exe PID 2512 wrote to memory of 2588 2512 f57318e139826014dbcc8f0eaad35e40_JaffaCakes118.exe sc.exe PID 2512 wrote to memory of 2964 2512 f57318e139826014dbcc8f0eaad35e40_JaffaCakes118.exe netsh.exe PID 2512 wrote to memory of 2964 2512 f57318e139826014dbcc8f0eaad35e40_JaffaCakes118.exe netsh.exe PID 2512 wrote to memory of 2964 2512 f57318e139826014dbcc8f0eaad35e40_JaffaCakes118.exe netsh.exe PID 2512 wrote to memory of 2964 2512 f57318e139826014dbcc8f0eaad35e40_JaffaCakes118.exe netsh.exe PID 2604 wrote to memory of 2504 2604 ycnfjqrx.exe svchost.exe PID 2604 wrote to memory of 2504 2604 ycnfjqrx.exe svchost.exe PID 2604 wrote to memory of 2504 2604 ycnfjqrx.exe svchost.exe PID 2604 wrote to memory of 2504 2604 ycnfjqrx.exe svchost.exe PID 2604 wrote to memory of 2504 2604 ycnfjqrx.exe svchost.exe PID 2604 wrote to memory of 2504 2604 ycnfjqrx.exe svchost.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\f57318e139826014dbcc8f0eaad35e40_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\f57318e139826014dbcc8f0eaad35e40_JaffaCakes118.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xkavcbyn\2⤵
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ycnfjqrx.exe" C:\Windows\SysWOW64\xkavcbyn\2⤵
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" create xkavcbyn binPath= "C:\Windows\SysWOW64\xkavcbyn\ycnfjqrx.exe /d\"C:\Users\Admin\AppData\Local\Temp\f57318e139826014dbcc8f0eaad35e40_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 xkavcbyn "wifi internet conection"2⤵
- Launches sc.exe
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" start xkavcbyn2⤵
- 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\xkavcbyn\ycnfjqrx.exeC:\Windows\SysWOW64\xkavcbyn\ycnfjqrx.exe /d"C:\Users\Admin\AppData\Local\Temp\f57318e139826014dbcc8f0eaad35e40_JaffaCakes118.exe"1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\svchost.exesvchost.exe2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
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\ycnfjqrx.exeFilesize
14.8MB
MD532c58fe060239c51930df529e6cd2087
SHA15511b9ff1435076dcb795baf091ff7c2fc7c70fd
SHA2564607fede4785e190decddfe643dd719934e16e83875a8136a8c39317af0c555c
SHA5124cc21e01dff34e06668d3c12e30889aafc358d87866da2d15603320586cd06129cf21cbe2398aaf9f49cd07eb0e489384d2161c9626c84fd5bab9d1511e3137b
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memory/2504-11-0x0000000000080000-0x0000000000095000-memory.dmpFilesize
84KB
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memory/2504-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmpFilesize
4KB
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memory/2504-22-0x0000000000080000-0x0000000000095000-memory.dmpFilesize
84KB
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memory/2504-21-0x0000000000080000-0x0000000000095000-memory.dmpFilesize
84KB
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memory/2504-20-0x0000000000080000-0x0000000000095000-memory.dmpFilesize
84KB
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memory/2504-15-0x0000000000080000-0x0000000000095000-memory.dmpFilesize
84KB
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memory/2512-8-0x00000000001C0000-0x00000000001D3000-memory.dmpFilesize
76KB
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memory/2512-2-0x00000000001C0000-0x00000000001D3000-memory.dmpFilesize
76KB
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memory/2512-4-0x0000000000400000-0x00000000008E9000-memory.dmpFilesize
4.9MB
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memory/2512-7-0x0000000000400000-0x00000000008E9000-memory.dmpFilesize
4.9MB
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memory/2512-1-0x00000000002D0000-0x00000000003D0000-memory.dmpFilesize
1024KB
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memory/2604-13-0x0000000000400000-0x00000000008E9000-memory.dmpFilesize
4.9MB
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memory/2604-10-0x0000000000AB0000-0x0000000000BB0000-memory.dmpFilesize
1024KB
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memory/2604-16-0x0000000000400000-0x00000000008E9000-memory.dmpFilesize
4.9MB