Analysis
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max time kernel
149s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
25/03/2024, 16:12
Static task
static1
Behavioral task
behavioral1
Sample
de6b0434de35cf7e80ca010ea9c0bd03.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
de6b0434de35cf7e80ca010ea9c0bd03.exe
Resource
win10v2004-20240226-en
General
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Target
de6b0434de35cf7e80ca010ea9c0bd03.exe
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Size
10.7MB
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MD5
de6b0434de35cf7e80ca010ea9c0bd03
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SHA1
1465db214939cdf236463023b37ec908d97bf4e5
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SHA256
b33a01548088b02d5ef5e727d704cb0f60adb233a8c0592e59ff4c69204cb9e1
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SHA512
df25341fcfbe0c16e563958c0d10d5f09d7b61651d8a0c22d4cd24924372a352ccd7c01de9d0a51e550b984001dda389269c08f7029487c38a5de8799bdfe1b9
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SSDEEP
49152:jyjfVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVV3:
Malware Config
Extracted
tofsee
43.231.4.7
lazystax.ru
Signatures
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Creates new service(s) 1 TTPs
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Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 2228 netsh.exe -
Sets service image path in registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\oxzjlybb\ImagePath = "C:\\Windows\\SysWOW64\\oxzjlybb\\ckzdqoxx.exe" svchost.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-1-5-21-3270530367-132075249-2153716227-1000\Control Panel\International\Geo\Nation de6b0434de35cf7e80ca010ea9c0bd03.exe -
Deletes itself 1 IoCs
pid Process 2056 svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 1956 ckzdqoxx.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1956 set thread context of 2056 1956 ckzdqoxx.exe 105 -
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 4636 sc.exe 3812 sc.exe 4888 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 4976 1956 WerFault.exe 104 840 4348 WerFault.exe 88 -
Suspicious use of WriteProcessMemory 23 IoCs
description pid Process procid_target PID 4348 wrote to memory of 4268 4348 de6b0434de35cf7e80ca010ea9c0bd03.exe 93 PID 4348 wrote to memory of 4268 4348 de6b0434de35cf7e80ca010ea9c0bd03.exe 93 PID 4348 wrote to memory of 4268 4348 de6b0434de35cf7e80ca010ea9c0bd03.exe 93 PID 4348 wrote to memory of 2412 4348 de6b0434de35cf7e80ca010ea9c0bd03.exe 96 PID 4348 wrote to memory of 2412 4348 de6b0434de35cf7e80ca010ea9c0bd03.exe 96 PID 4348 wrote to memory of 2412 4348 de6b0434de35cf7e80ca010ea9c0bd03.exe 96 PID 4348 wrote to memory of 4636 4348 de6b0434de35cf7e80ca010ea9c0bd03.exe 98 PID 4348 wrote to memory of 4636 4348 de6b0434de35cf7e80ca010ea9c0bd03.exe 98 PID 4348 wrote to memory of 4636 4348 de6b0434de35cf7e80ca010ea9c0bd03.exe 98 PID 4348 wrote to memory of 3812 4348 de6b0434de35cf7e80ca010ea9c0bd03.exe 100 PID 4348 wrote to memory of 3812 4348 de6b0434de35cf7e80ca010ea9c0bd03.exe 100 PID 4348 wrote to memory of 3812 4348 de6b0434de35cf7e80ca010ea9c0bd03.exe 100 PID 4348 wrote to memory of 4888 4348 de6b0434de35cf7e80ca010ea9c0bd03.exe 102 PID 4348 wrote to memory of 4888 4348 de6b0434de35cf7e80ca010ea9c0bd03.exe 102 PID 4348 wrote to memory of 4888 4348 de6b0434de35cf7e80ca010ea9c0bd03.exe 102 PID 1956 wrote to memory of 2056 1956 ckzdqoxx.exe 105 PID 1956 wrote to memory of 2056 1956 ckzdqoxx.exe 105 PID 1956 wrote to memory of 2056 1956 ckzdqoxx.exe 105 PID 1956 wrote to memory of 2056 1956 ckzdqoxx.exe 105 PID 1956 wrote to memory of 2056 1956 ckzdqoxx.exe 105 PID 4348 wrote to memory of 2228 4348 de6b0434de35cf7e80ca010ea9c0bd03.exe 108 PID 4348 wrote to memory of 2228 4348 de6b0434de35cf7e80ca010ea9c0bd03.exe 108 PID 4348 wrote to memory of 2228 4348 de6b0434de35cf7e80ca010ea9c0bd03.exe 108
Processes
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C:\Users\Admin\AppData\Local\Temp\de6b0434de35cf7e80ca010ea9c0bd03.exe"C:\Users\Admin\AppData\Local\Temp\de6b0434de35cf7e80ca010ea9c0bd03.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4348 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\oxzjlybb\2⤵PID:4268
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ckzdqoxx.exe" C:\Windows\SysWOW64\oxzjlybb\2⤵PID:2412
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" create oxzjlybb binPath= "C:\Windows\SysWOW64\oxzjlybb\ckzdqoxx.exe /d\"C:\Users\Admin\AppData\Local\Temp\de6b0434de35cf7e80ca010ea9c0bd03.exe\"" type= own start= auto DisplayName= "wifi support"2⤵
- Launches sc.exe
PID:4636
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" description oxzjlybb "wifi internet conection"2⤵
- Launches sc.exe
PID:3812
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" start oxzjlybb2⤵
- Launches sc.exe
PID:4888
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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:2228
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4348 -s 12722⤵
- Program crash
PID:840
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C:\Windows\SysWOW64\oxzjlybb\ckzdqoxx.exeC:\Windows\SysWOW64\oxzjlybb\ckzdqoxx.exe /d"C:\Users\Admin\AppData\Local\Temp\de6b0434de35cf7e80ca010ea9c0bd03.exe"1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1956 -
C:\Windows\SysWOW64\svchost.exesvchost.exe2⤵
- Sets service image path in registry
- Deletes itself
PID:2056
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1956 -s 5162⤵
- Program crash
PID:4976
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1956 -ip 19561⤵PID:3868
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 4348 -ip 43481⤵PID:956
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
11.2MB
MD5b2119dab7c0f24bd5f153dc10be26bde
SHA17b971ea4b0d4b21d962725f060d03dc0f1715f0a
SHA256f501dd0057e7bad603bc2e1a5b4ba7e34e490e4138b2f5eed578084ebf0c79bf
SHA512daebf2c43d6c701903aef6cf527f97a5588665c0e655172356c263cec2e3f65120cb4c161ac9d931538af5173fa156e8ed6b7c8662cbc7a870039db9122243c5