Analysis
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max time kernel
149s -
max time network
147s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
25/03/2024, 17:32
Static task
static1
Behavioral task
behavioral1
Sample
de90eba22fa484e92a72c6834f6361a3.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
de90eba22fa484e92a72c6834f6361a3.exe
Resource
win10v2004-20240319-en
General
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Target
de90eba22fa484e92a72c6834f6361a3.exe
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Size
13.5MB
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MD5
de90eba22fa484e92a72c6834f6361a3
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SHA1
97c0be0a75a5dba4e7f41a46cad23ed2bb705e2f
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SHA256
cb9dbbefdefc8029972629da6dc5f67bb76d6d2a71fe87f567551ef85dbbd2ff
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SHA512
ab2b80853123a972ded15d1d4d56c2f9393f24800a6ae07e4756daf40c6a77be2347ea2f05a2eb76fc4f2671c818999e6ecdf53e63d58fbaea588ca14dafc50f
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SSDEEP
12288:Lz5RuW/D2OpqMtGHo/zDq1ousycoJl//////////////////////////////////:qW/D2o5/Hq11coJ
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\vfhywgap = "0" svchost.exe -
Creates new service(s) 1 TTPs
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Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 2608 netsh.exe -
Sets service image path in registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\vfhywgap\ImagePath = "C:\\Windows\\SysWOW64\\vfhywgap\\gyhpmzlf.exe" svchost.exe -
Deletes itself 1 IoCs
pid Process 2620 svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 848 gyhpmzlf.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 848 set thread context of 2620 848 gyhpmzlf.exe 41 -
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 2648 sc.exe 2140 sc.exe 2316 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 328 wrote to memory of 2328 328 de90eba22fa484e92a72c6834f6361a3.exe 28 PID 328 wrote to memory of 2328 328 de90eba22fa484e92a72c6834f6361a3.exe 28 PID 328 wrote to memory of 2328 328 de90eba22fa484e92a72c6834f6361a3.exe 28 PID 328 wrote to memory of 2328 328 de90eba22fa484e92a72c6834f6361a3.exe 28 PID 328 wrote to memory of 3052 328 de90eba22fa484e92a72c6834f6361a3.exe 30 PID 328 wrote to memory of 3052 328 de90eba22fa484e92a72c6834f6361a3.exe 30 PID 328 wrote to memory of 3052 328 de90eba22fa484e92a72c6834f6361a3.exe 30 PID 328 wrote to memory of 3052 328 de90eba22fa484e92a72c6834f6361a3.exe 30 PID 328 wrote to memory of 2140 328 de90eba22fa484e92a72c6834f6361a3.exe 32 PID 328 wrote to memory of 2140 328 de90eba22fa484e92a72c6834f6361a3.exe 32 PID 328 wrote to memory of 2140 328 de90eba22fa484e92a72c6834f6361a3.exe 32 PID 328 wrote to memory of 2140 328 de90eba22fa484e92a72c6834f6361a3.exe 32 PID 328 wrote to memory of 2316 328 de90eba22fa484e92a72c6834f6361a3.exe 34 PID 328 wrote to memory of 2316 328 de90eba22fa484e92a72c6834f6361a3.exe 34 PID 328 wrote to memory of 2316 328 de90eba22fa484e92a72c6834f6361a3.exe 34 PID 328 wrote to memory of 2316 328 de90eba22fa484e92a72c6834f6361a3.exe 34 PID 328 wrote to memory of 2648 328 de90eba22fa484e92a72c6834f6361a3.exe 36 PID 328 wrote to memory of 2648 328 de90eba22fa484e92a72c6834f6361a3.exe 36 PID 328 wrote to memory of 2648 328 de90eba22fa484e92a72c6834f6361a3.exe 36 PID 328 wrote to memory of 2648 328 de90eba22fa484e92a72c6834f6361a3.exe 36 PID 328 wrote to memory of 2608 328 de90eba22fa484e92a72c6834f6361a3.exe 39 PID 328 wrote to memory of 2608 328 de90eba22fa484e92a72c6834f6361a3.exe 39 PID 328 wrote to memory of 2608 328 de90eba22fa484e92a72c6834f6361a3.exe 39 PID 328 wrote to memory of 2608 328 de90eba22fa484e92a72c6834f6361a3.exe 39 PID 848 wrote to memory of 2620 848 gyhpmzlf.exe 41 PID 848 wrote to memory of 2620 848 gyhpmzlf.exe 41 PID 848 wrote to memory of 2620 848 gyhpmzlf.exe 41 PID 848 wrote to memory of 2620 848 gyhpmzlf.exe 41 PID 848 wrote to memory of 2620 848 gyhpmzlf.exe 41 PID 848 wrote to memory of 2620 848 gyhpmzlf.exe 41
Processes
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C:\Users\Admin\AppData\Local\Temp\de90eba22fa484e92a72c6834f6361a3.exe"C:\Users\Admin\AppData\Local\Temp\de90eba22fa484e92a72c6834f6361a3.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:328 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\vfhywgap\2⤵PID:2328
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\gyhpmzlf.exe" C:\Windows\SysWOW64\vfhywgap\2⤵PID:3052
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" create vfhywgap binPath= "C:\Windows\SysWOW64\vfhywgap\gyhpmzlf.exe /d\"C:\Users\Admin\AppData\Local\Temp\de90eba22fa484e92a72c6834f6361a3.exe\"" type= own start= auto DisplayName= "wifi support"2⤵
- Launches sc.exe
PID:2140
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" description vfhywgap "wifi internet conection"2⤵
- Launches sc.exe
PID:2316
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" start vfhywgap2⤵
- Launches sc.exe
PID:2648
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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:2608
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C:\Windows\SysWOW64\vfhywgap\gyhpmzlf.exeC:\Windows\SysWOW64\vfhywgap\gyhpmzlf.exe /d"C:\Users\Admin\AppData\Local\Temp\de90eba22fa484e92a72c6834f6361a3.exe"1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:848 -
C:\Windows\SysWOW64\svchost.exesvchost.exe2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2620
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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
MD5c1234fed0876a3b54edc0136780b962d
SHA163abd668a36bba65272a466adb361e8087ebf607
SHA2560d6600a3467bbd645e72b2c630fc152c440c9278aacf05825547720c31bce0ae
SHA512ea68f7d9c4168f69274cd44d668fad584b7be1709f4c210e4b8cf242fb0caebb884369d42ac657bfd1d19c55b282dc1f4e810cafaa3a1a8396fed5cdb2246dde