Analysis
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max time kernel
146s -
max time network
145s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
26/03/2024, 09:31
Static task
static1
Behavioral task
behavioral1
Sample
ded6c7b76f7807e102b6cf167e23ac66.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
ded6c7b76f7807e102b6cf167e23ac66.exe
Resource
win10v2004-20240226-en
General
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Target
ded6c7b76f7807e102b6cf167e23ac66.exe
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Size
11.2MB
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MD5
ded6c7b76f7807e102b6cf167e23ac66
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SHA1
4011583cb42fedee6663e34ca1930c8785935a75
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SHA256
7e4daedee73d2c6f9f78a81907713020b2cfa818e1b2a4836c44e8e8d7276be8
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SHA512
4fd2339f4590f8420a9ebf0c56ab498587fd31fde057cf31c880b95d011f5f1e6212a9c1669d6448245fc91f86a18da7d3c137f7152dc3bed97c13d2860556e8
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SSDEEP
24576:yUqa71YB5DHlommmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmX:yF15
Malware Config
Extracted
tofsee
defeatwax.ru
refabyd.info
Signatures
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description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\zirxpnim = "0" svchost.exe -
Creates new service(s) 1 TTPs
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Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 2472 netsh.exe -
Sets service image path in registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\zirxpnim\ImagePath = "C:\\Windows\\SysWOW64\\zirxpnim\\cczuxofx.exe" svchost.exe -
Deletes itself 1 IoCs
pid Process 2432 svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 2760 cczuxofx.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2760 set thread context of 2432 2760 cczuxofx.exe 41 -
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 2716 sc.exe 2548 sc.exe 2444 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
description pid Process procid_target PID 2196 wrote to memory of 2176 2196 ded6c7b76f7807e102b6cf167e23ac66.exe 28 PID 2196 wrote to memory of 2176 2196 ded6c7b76f7807e102b6cf167e23ac66.exe 28 PID 2196 wrote to memory of 2176 2196 ded6c7b76f7807e102b6cf167e23ac66.exe 28 PID 2196 wrote to memory of 2176 2196 ded6c7b76f7807e102b6cf167e23ac66.exe 28 PID 2196 wrote to memory of 2532 2196 ded6c7b76f7807e102b6cf167e23ac66.exe 30 PID 2196 wrote to memory of 2532 2196 ded6c7b76f7807e102b6cf167e23ac66.exe 30 PID 2196 wrote to memory of 2532 2196 ded6c7b76f7807e102b6cf167e23ac66.exe 30 PID 2196 wrote to memory of 2532 2196 ded6c7b76f7807e102b6cf167e23ac66.exe 30 PID 2196 wrote to memory of 2716 2196 ded6c7b76f7807e102b6cf167e23ac66.exe 32 PID 2196 wrote to memory of 2716 2196 ded6c7b76f7807e102b6cf167e23ac66.exe 32 PID 2196 wrote to memory of 2716 2196 ded6c7b76f7807e102b6cf167e23ac66.exe 32 PID 2196 wrote to memory of 2716 2196 ded6c7b76f7807e102b6cf167e23ac66.exe 32 PID 2196 wrote to memory of 2548 2196 ded6c7b76f7807e102b6cf167e23ac66.exe 34 PID 2196 wrote to memory of 2548 2196 ded6c7b76f7807e102b6cf167e23ac66.exe 34 PID 2196 wrote to memory of 2548 2196 ded6c7b76f7807e102b6cf167e23ac66.exe 34 PID 2196 wrote to memory of 2548 2196 ded6c7b76f7807e102b6cf167e23ac66.exe 34 PID 2196 wrote to memory of 2444 2196 ded6c7b76f7807e102b6cf167e23ac66.exe 36 PID 2196 wrote to memory of 2444 2196 ded6c7b76f7807e102b6cf167e23ac66.exe 36 PID 2196 wrote to memory of 2444 2196 ded6c7b76f7807e102b6cf167e23ac66.exe 36 PID 2196 wrote to memory of 2444 2196 ded6c7b76f7807e102b6cf167e23ac66.exe 36 PID 2196 wrote to memory of 2472 2196 ded6c7b76f7807e102b6cf167e23ac66.exe 39 PID 2196 wrote to memory of 2472 2196 ded6c7b76f7807e102b6cf167e23ac66.exe 39 PID 2196 wrote to memory of 2472 2196 ded6c7b76f7807e102b6cf167e23ac66.exe 39 PID 2196 wrote to memory of 2472 2196 ded6c7b76f7807e102b6cf167e23ac66.exe 39 PID 2760 wrote to memory of 2432 2760 cczuxofx.exe 41 PID 2760 wrote to memory of 2432 2760 cczuxofx.exe 41 PID 2760 wrote to memory of 2432 2760 cczuxofx.exe 41 PID 2760 wrote to memory of 2432 2760 cczuxofx.exe 41 PID 2760 wrote to memory of 2432 2760 cczuxofx.exe 41 PID 2760 wrote to memory of 2432 2760 cczuxofx.exe 41
Processes
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C:\Users\Admin\AppData\Local\Temp\ded6c7b76f7807e102b6cf167e23ac66.exe"C:\Users\Admin\AppData\Local\Temp\ded6c7b76f7807e102b6cf167e23ac66.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:2196 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zirxpnim\2⤵PID:2176
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\cczuxofx.exe" C:\Windows\SysWOW64\zirxpnim\2⤵PID:2532
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" create zirxpnim binPath= "C:\Windows\SysWOW64\zirxpnim\cczuxofx.exe /d\"C:\Users\Admin\AppData\Local\Temp\ded6c7b76f7807e102b6cf167e23ac66.exe\"" type= own start= auto DisplayName= "wifi support"2⤵
- Launches sc.exe
PID:2716
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" description zirxpnim "wifi internet conection"2⤵
- Launches sc.exe
PID:2548
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" start zirxpnim2⤵
- Launches sc.exe
PID:2444
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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
PID:2472
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C:\Windows\SysWOW64\zirxpnim\cczuxofx.exeC:\Windows\SysWOW64\zirxpnim\cczuxofx.exe /d"C:\Users\Admin\AppData\Local\Temp\ded6c7b76f7807e102b6cf167e23ac66.exe"1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2760 -
C:\Windows\SysWOW64\svchost.exesvchost.exe2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2432
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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
12.4MB
MD5ebe849d933e372fa2d048e847b0e7b68
SHA1bb0024ec55a181e84452255bd4efa1b8a518578e
SHA2561a2691e44d6173f203200ac09b03acd72120e5e14957e731ad5bb8b99a205b2f
SHA5129fc162e8e24c47b3f3602395f4ab038f73e5820f2a8c06e6ffa91a70fa3c018a2248757965bf4be9ae05fdf824b52d111bfb11097f1f039bbb27970324da76a4