Analysis
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max time kernel
149s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-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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Creates new service(s) 1 TTPs
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Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 4712 netsh.exe -
Sets service image path in registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\zycpedss\ImagePath = "C:\\Windows\\SysWOW64\\zycpedss\\jcuqozn.exe" jcuqozn.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\Control Panel\International\Geo\Nation ded6c7b76f7807e102b6cf167e23ac66.exe -
Deletes itself 1 IoCs
pid Process 4544 svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 2648 jcuqozn.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2648 set thread context of 4544 2648 jcuqozn.exe 111 -
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 1520 sc.exe 4780 sc.exe 3672 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
pid pid_target Process procid_target 4008 348 WerFault.exe 86 688 2648 WerFault.exe 103 -
Suspicious use of WriteProcessMemory 23 IoCs
description pid Process procid_target PID 348 wrote to memory of 4160 348 ded6c7b76f7807e102b6cf167e23ac66.exe 90 PID 348 wrote to memory of 4160 348 ded6c7b76f7807e102b6cf167e23ac66.exe 90 PID 348 wrote to memory of 4160 348 ded6c7b76f7807e102b6cf167e23ac66.exe 90 PID 348 wrote to memory of 5028 348 ded6c7b76f7807e102b6cf167e23ac66.exe 92 PID 348 wrote to memory of 5028 348 ded6c7b76f7807e102b6cf167e23ac66.exe 92 PID 348 wrote to memory of 5028 348 ded6c7b76f7807e102b6cf167e23ac66.exe 92 PID 348 wrote to memory of 4780 348 ded6c7b76f7807e102b6cf167e23ac66.exe 94 PID 348 wrote to memory of 4780 348 ded6c7b76f7807e102b6cf167e23ac66.exe 94 PID 348 wrote to memory of 4780 348 ded6c7b76f7807e102b6cf167e23ac66.exe 94 PID 348 wrote to memory of 3672 348 ded6c7b76f7807e102b6cf167e23ac66.exe 96 PID 348 wrote to memory of 3672 348 ded6c7b76f7807e102b6cf167e23ac66.exe 96 PID 348 wrote to memory of 3672 348 ded6c7b76f7807e102b6cf167e23ac66.exe 96 PID 348 wrote to memory of 1520 348 ded6c7b76f7807e102b6cf167e23ac66.exe 100 PID 348 wrote to memory of 1520 348 ded6c7b76f7807e102b6cf167e23ac66.exe 100 PID 348 wrote to memory of 1520 348 ded6c7b76f7807e102b6cf167e23ac66.exe 100 PID 348 wrote to memory of 4712 348 ded6c7b76f7807e102b6cf167e23ac66.exe 104 PID 348 wrote to memory of 4712 348 ded6c7b76f7807e102b6cf167e23ac66.exe 104 PID 348 wrote to memory of 4712 348 ded6c7b76f7807e102b6cf167e23ac66.exe 104 PID 2648 wrote to memory of 4544 2648 jcuqozn.exe 111 PID 2648 wrote to memory of 4544 2648 jcuqozn.exe 111 PID 2648 wrote to memory of 4544 2648 jcuqozn.exe 111 PID 2648 wrote to memory of 4544 2648 jcuqozn.exe 111 PID 2648 wrote to memory of 4544 2648 jcuqozn.exe 111
Processes
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C:\Users\Admin\AppData\Local\Temp\ded6c7b76f7807e102b6cf167e23ac66.exe"C:\Users\Admin\AppData\Local\Temp\ded6c7b76f7807e102b6cf167e23ac66.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:348 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zycpedss\2⤵PID:4160
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jcuqozn.exe" C:\Windows\SysWOW64\zycpedss\2⤵PID:5028
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" create zycpedss binPath= "C:\Windows\SysWOW64\zycpedss\jcuqozn.exe /d\"C:\Users\Admin\AppData\Local\Temp\ded6c7b76f7807e102b6cf167e23ac66.exe\"" type= own start= auto DisplayName= "wifi support"2⤵
- Launches sc.exe
PID:4780
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" description zycpedss "wifi internet conection"2⤵
- Launches sc.exe
PID:3672
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" start zycpedss2⤵
- Launches sc.exe
PID:1520
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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:4712
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 348 -s 6562⤵
- Program crash
PID:4008
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C:\Windows\SysWOW64\zycpedss\jcuqozn.exeC:\Windows\SysWOW64\zycpedss\jcuqozn.exe /d"C:\Users\Admin\AppData\Local\Temp\ded6c7b76f7807e102b6cf167e23ac66.exe"1⤵
- Sets service image path in registry
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2648 -
C:\Windows\SysWOW64\svchost.exesvchost.exe2⤵
- Deletes itself
PID:4544
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2648 -s 5162⤵
- Program crash
PID:688
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 348 -ip 3481⤵PID:4808
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 2648 -ip 26481⤵PID:4936
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
10.7MB
MD50464e9bfbaa260dfa7f3325dcae8a30b
SHA1ad47bc39da4f9bb3d38f4551312e5ebe52f3bc24
SHA256fb8c6bb5eb98753ce1ecc266a92df6e8cc21cb50eb95ebe080fad3728fc421ea
SHA5123d2aea272b832508b5cd897ff5f06d7a5363592119c90b9b243a85a6506c3832c7ab2cba1c8ba0c902ac7c920a1205c61f631cbc8c21ead77c65ad946a67a5af