19d32c1fc7c6fa9a5924aeb6ce69d8e5211c3e458eb51178171e0c75f129c48a

General

Target

uncategorized_9.0.0.2.vir.exe
Size

224KB
MD5

3706da30e1fc51212ae95aff2fae57ad
SHA1

72029dca348d3fa4faa43d9999fa1b744bb559cd
SHA256

19d32c1fc7c6fa9a5924aeb6ce69d8e5211c3e458eb51178171e0c75f129c48a
SHA512

0d8ae837a6e0a0f9ad582fb94b5a997d30066194f8428e77bdfa2cbe2669dbaa3784752ea41e354c9806bde1792392d930c0d365522f4f0cc762595e00b16897

Score

8^/10

ransomware bootkit persistence spyware

Malware Config

Signatures

Modifies WinLogon to allow AutoLogon 2 TTPs 1 IoCs
Enables rebooting of the machine without requiring login credentials.
ransomware bootkit

Winlogon Helper DLL
T1004

Modify Registry
T1112

Processes:

LogonUI.exe

description ioc process

Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\AutoLogonChecked LogonUI.exe
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware

Data from Local System
T1005

Credentials in Files
T1081

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\AutoLogonChecked	LogonUI.exe

Checks whether UAC is enabled 2 IoCs

Processes:

IEXPLORE.EXEiexplore.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	IEXPLORE.EXE
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	iexplore.exe

Executes dropped EXE 2 IoCs

Processes:

dyis.exedyis.exe

pid process

1044 dyis.exe
928 dyis.exe

pid	process
1044	dyis.exe
928	dyis.exe

Modifies Internet Explorer settings 1 TTPs 16 IoCs

adware spyware

Modify Registry

T1112

Processes:

IEXPLORE.EXE

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Internet Explorer\PageSetup	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Internet Explorer\InternetRegistry	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Internet Explorer\LowRegistry	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Internet Explorer\Toolbar	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Internet Explorer\IntelliForms	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Internet Explorer\Zoom	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{405126D1-C9F8-11EA-8E31-CE94C9E5ACDD} = "0"	IEXPLORE.EXE

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

dyis.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\Currentversion\Run	dyis.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run\\|7A0C12AB-3521-1C1B-7539-5CD2A54C915A} = "C:\\Users\\Admin\\AppData\\Roaming\\Rihano\\dyis.exe"	dyis.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

uncategorized_9.0.0.2.vir.exeLogonUI.exe

description	pid	process
Token: SeSecurityPrivilege	1496	uncategorized_9.0.0.2.vir.exe
Token: SeShutdownPrivilege	924	LogonUI.exe
Token: SeShutdownPrivilege	924	LogonUI.exe

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1484 cmd.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

IEXPLORE.EXE

pid process

1340 IEXPLORE.EXE
1340 IEXPLORE.EXE

pid	process
1484	cmd.exe

pid	process
1340	IEXPLORE.EXE
1340	IEXPLORE.EXE

Suspicious use of SetThreadContext 2 IoCs

Processes:

uncategorized_9.0.0.2.vir.exedyis.exe

description	pid	process	target process
PID 1464 set thread context of 1496	1464	uncategorized_9.0.0.2.vir.exe	uncategorized_9.0.0.2.vir.exe
PID 1044 set thread context of 928	1044	dyis.exe	dyis.exe

Loads dropped DLL 2 IoCs

Processes:

uncategorized_9.0.0.2.vir.exe

pid process

1496 uncategorized_9.0.0.2.vir.exe
1496 uncategorized_9.0.0.2.vir.exe

pid	process
1496	uncategorized_9.0.0.2.vir.exe
1496	uncategorized_9.0.0.2.vir.exe

Suspicious behavior: EnumeratesProcesses 875 IoCs

Processes:

dyis.exe

pid	process
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe
928	dyis.exe

Enumerates system info in registry 2 TTPs 32 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

csrss.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\0\Component Information	csrss.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\2\Configuration Data	csrss.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\0\KeyboardController\0\Component Information	csrss.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\SYSTEM\MultifunctionAdapter\0\KeyboardController\0\KeyboardPeripheral	csrss.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\0\KeyboardController\0\KeyboardPeripheral\0\Configuration Data	csrss.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\2	csrss.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\2\Identifier	csrss.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\0\Configuration Data	csrss.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\1\Configuration Data	csrss.exe
Key queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\1	csrss.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\SYSTEM\MultifunctionAdapter\0\KeyboardController\0\KeyboardPeripheral\0	csrss.exe
Key enumerated	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter	csrss.exe
Key enumerated	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\0	csrss.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\SYSTEM\MultifunctionAdapter\1\KeyboardController	csrss.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\0\KeyboardController\0\KeyboardPeripheral\0\Identifier	csrss.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter	csrss.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\0	csrss.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\0\Identifier	csrss.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\2\Component Information	csrss.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\SYSTEM\MultifunctionAdapter\0\KeyboardController\0	csrss.exe
Key queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter	csrss.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\1\Identifier	csrss.exe
Key queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\0\KeyboardController	csrss.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\0\KeyboardController\0\Identifier	csrss.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\0\KeyboardController\0\Configuration Data	csrss.exe
Key queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\0\KeyboardController\0\KeyboardPeripheral	csrss.exe
Key queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\0	csrss.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\1	csrss.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\1\Component Information	csrss.exe
Key queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\2	csrss.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\SYSTEM\MultifunctionAdapter\0\KeyboardController	csrss.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\0\KeyboardController\0\KeyboardPeripheral\0\Component Information	csrss.exe

Modifies data under HKEY_USERS 9 IoCs

Processes:

winlogon.exe

description	ioc	process
Set value (data)	\REGISTRY\USER\.DEFAULT\Control Panel\Desktop\MuiCached\MachinePreferredUILanguages = 65006e002d00550053000000	winlogon.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\ThemeManager\LoadedBefore = "1"	winlogon.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\ThemeManager\DllName = "%SystemRoot%\\resources\\themes\\Aero\\Aero.msstyles"	winlogon.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\ThemeManager\ColorName = "NormalColor"	winlogon.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\ThemeManager\SizeName = "NormalSize"	winlogon.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\ThemeManager	winlogon.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\ThemeManager\ThemeActive = "1"	winlogon.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\ThemeManager\LastUserLangID = "1033"	winlogon.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\ThemeManager\LastLoadedDPI = "96"	winlogon.exe

Suspicious use of WriteProcessMemory 76 IoCs

Processes:

uncategorized_9.0.0.2.vir.exeuncategorized_9.0.0.2.vir.exedyis.exedyis.exeiexplore.exeIEXPLORE.EXEcsrss.exe

description	pid	process	target process
PID 1464 wrote to memory of 1496	1464	uncategorized_9.0.0.2.vir.exe	uncategorized_9.0.0.2.vir.exe
PID 1464 wrote to memory of 1496	1464	uncategorized_9.0.0.2.vir.exe	uncategorized_9.0.0.2.vir.exe
PID 1464 wrote to memory of 1496	1464	uncategorized_9.0.0.2.vir.exe	uncategorized_9.0.0.2.vir.exe
PID 1464 wrote to memory of 1496	1464	uncategorized_9.0.0.2.vir.exe	uncategorized_9.0.0.2.vir.exe
PID 1464 wrote to memory of 1496	1464	uncategorized_9.0.0.2.vir.exe	uncategorized_9.0.0.2.vir.exe
PID 1464 wrote to memory of 1496	1464	uncategorized_9.0.0.2.vir.exe	uncategorized_9.0.0.2.vir.exe
PID 1464 wrote to memory of 1496	1464	uncategorized_9.0.0.2.vir.exe	uncategorized_9.0.0.2.vir.exe
PID 1464 wrote to memory of 1496	1464	uncategorized_9.0.0.2.vir.exe	uncategorized_9.0.0.2.vir.exe
PID 1464 wrote to memory of 1496	1464	uncategorized_9.0.0.2.vir.exe	uncategorized_9.0.0.2.vir.exe
PID 1496 wrote to memory of 1044	1496	uncategorized_9.0.0.2.vir.exe	dyis.exe
PID 1496 wrote to memory of 1044	1496	uncategorized_9.0.0.2.vir.exe	dyis.exe
PID 1496 wrote to memory of 1044	1496	uncategorized_9.0.0.2.vir.exe	dyis.exe
PID 1496 wrote to memory of 1044	1496	uncategorized_9.0.0.2.vir.exe	dyis.exe
PID 1044 wrote to memory of 928	1044	dyis.exe	dyis.exe
PID 1044 wrote to memory of 928	1044	dyis.exe	dyis.exe
PID 1044 wrote to memory of 928	1044	dyis.exe	dyis.exe
PID 1044 wrote to memory of 928	1044	dyis.exe	dyis.exe
PID 1044 wrote to memory of 928	1044	dyis.exe	dyis.exe
PID 1044 wrote to memory of 928	1044	dyis.exe	dyis.exe
PID 1044 wrote to memory of 928	1044	dyis.exe	dyis.exe
PID 1044 wrote to memory of 928	1044	dyis.exe	dyis.exe
PID 1044 wrote to memory of 928	1044	dyis.exe	dyis.exe
PID 1496 wrote to memory of 1484	1496	uncategorized_9.0.0.2.vir.exe	cmd.exe
PID 1496 wrote to memory of 1484	1496	uncategorized_9.0.0.2.vir.exe	cmd.exe
PID 1496 wrote to memory of 1484	1496	uncategorized_9.0.0.2.vir.exe	cmd.exe
PID 1496 wrote to memory of 1484	1496	uncategorized_9.0.0.2.vir.exe	cmd.exe
PID 928 wrote to memory of 1092	928	dyis.exe	taskhost.exe
PID 928 wrote to memory of 1092	928	dyis.exe	taskhost.exe
PID 928 wrote to memory of 1092	928	dyis.exe	taskhost.exe
PID 928 wrote to memory of 1092	928	dyis.exe	taskhost.exe
PID 928 wrote to memory of 1092	928	dyis.exe	taskhost.exe
PID 928 wrote to memory of 1180	928	dyis.exe	Dwm.exe
PID 928 wrote to memory of 1180	928	dyis.exe	Dwm.exe
PID 928 wrote to memory of 1180	928	dyis.exe	Dwm.exe
PID 928 wrote to memory of 1180	928	dyis.exe	Dwm.exe
PID 928 wrote to memory of 1180	928	dyis.exe	Dwm.exe
PID 928 wrote to memory of 1228	928	dyis.exe	Explorer.EXE
PID 928 wrote to memory of 1228	928	dyis.exe	Explorer.EXE
PID 928 wrote to memory of 1228	928	dyis.exe	Explorer.EXE
PID 928 wrote to memory of 1228	928	dyis.exe	Explorer.EXE
PID 928 wrote to memory of 1228	928	dyis.exe	Explorer.EXE
PID 928 wrote to memory of 784	928	dyis.exe	DllHost.exe
PID 928 wrote to memory of 784	928	dyis.exe	DllHost.exe
PID 928 wrote to memory of 784	928	dyis.exe	DllHost.exe
PID 928 wrote to memory of 784	928	dyis.exe	DllHost.exe
PID 928 wrote to memory of 784	928	dyis.exe	DllHost.exe
PID 928 wrote to memory of 1484	928	dyis.exe	cmd.exe
PID 928 wrote to memory of 1484	928	dyis.exe	cmd.exe
PID 928 wrote to memory of 1484	928	dyis.exe	cmd.exe
PID 928 wrote to memory of 1484	928	dyis.exe	cmd.exe
PID 928 wrote to memory of 1484	928	dyis.exe	cmd.exe
PID 928 wrote to memory of 1900	928	dyis.exe	iexplore.exe
PID 928 wrote to memory of 1900	928	dyis.exe	iexplore.exe
PID 928 wrote to memory of 1900	928	dyis.exe	iexplore.exe
PID 928 wrote to memory of 1900	928	dyis.exe	iexplore.exe
PID 1900 wrote to memory of 1340	1900	iexplore.exe	IEXPLORE.EXE
PID 1900 wrote to memory of 1340	1900	iexplore.exe	IEXPLORE.EXE
PID 1900 wrote to memory of 1340	1900	iexplore.exe	IEXPLORE.EXE
PID 1900 wrote to memory of 1340	1900	iexplore.exe	IEXPLORE.EXE
PID 1340 wrote to memory of 1660	1340	IEXPLORE.EXE	IEXPLORE.EXE
PID 1340 wrote to memory of 1660	1340	IEXPLORE.EXE	IEXPLORE.EXE
PID 1340 wrote to memory of 1660	1340	IEXPLORE.EXE	IEXPLORE.EXE
PID 1340 wrote to memory of 1660	1340	IEXPLORE.EXE	IEXPLORE.EXE
PID 2032 wrote to memory of 924	2032	csrss.exe	LogonUI.exe

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1092

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1180

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1228

C:\Users\Admin\AppData\Local\Temp\uncategorized_9.0.0.2.vir.exe
"C:\Users\Admin\AppData\Local\Temp\uncategorized_9.0.0.2.vir.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1464

C:\Users\Admin\AppData\Local\Temp\uncategorized_9.0.0.2.vir.exe
C:\Users\Admin\AppData\Local\Temp\uncategorized_9.0.0.2.vir.exe
3⤵
- Suspicious use of AdjustPrivilegeToken
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1496

C:\Users\Admin\AppData\Roaming\Rihano\dyis.exe
"C:\Users\Admin\AppData\Roaming\Rihano\dyis.exe"
4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1044

C:\Users\Admin\AppData\Roaming\Rihano\dyis.exe
C:\Users\Admin\AppData\Roaming\Rihano\dyis.exe
5⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:928

C:\Program Files (x86)\internet explorer\iexplore.exe
iexplore.exe -k "about:blank"
6⤵
- Checks whether UAC is enabled
- Suspicious use of WriteProcessMemory
PID:1900

C:\Program Files\Internet Explorer\IEXPLORE.EXE
"C:\Program Files\Internet Explorer\IEXPLORE.EXE" -k "about:blank"
7⤵
- Checks whether UAC is enabled
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1340

C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1340 CREDAT:275457 /prefetch:2
8⤵
PID:1660

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\tmpba3a5369.bat"
4⤵
- Deletes itself
PID:1484

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{F9717507-6651-4EDB-BFF7-AE615179BCCF}
1⤵
PID:784

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x0
1⤵
PID:1844

C:\Windows\system32\csrss.exe
%SystemRoot%\system32\csrss.exe ObjectDirectory=\Windows SharedSection=1024,20480,768 Windows=On SubSystemType=Windows ServerDll=basesrv,1 ServerDll=winsrv:UserServerDllInitialization,3 ServerDll=winsrv:ConServerDllInitialization,2 ServerDll=sxssrv,4 ProfileControl=Off MaxRequestThreads=16
1⤵
- Enumerates system info in registry
- Suspicious use of WriteProcessMemory
PID:2032

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
- Modifies data under HKEY_USERS
PID:328

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x0
2⤵
- Modifies WinLogon to allow AutoLogon
- Suspicious use of AdjustPrivilegeToken
PID:924

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1

T1004

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

3

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpba3a5369.bat

Download Submit
C:\Users\Admin\AppData\Roaming\Rihano\dyis.exe

Download Submit
C:\Users\Admin\AppData\Roaming\Rihano\dyis.exe

Download Submit
C:\Users\Admin\AppData\Roaming\Rihano\dyis.exe

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\Users\Admin\AppData\Roaming\Rihano\dyis.exe

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\Users\Admin\AppData\Roaming\Rihano\dyis.exe

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memory/328-21-0x0000000001DB0000-0x0000000001DB1000-memory.dmp

Filesize
4KB

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memory/924-19-0x0000000000000000-mapping.dmp

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memory/928-9-0x0000000000410440-mapping.dmp

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memory/1044-5-0x0000000000000000-mapping.dmp

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memory/1340-16-0x0000000000000000-mapping.dmp

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memory/1484-12-0x0000000000000000-mapping.dmp

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memory/1484-14-0x0000000000000000-mapping.dmp

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memory/1496-0-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

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memory/1496-2-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

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memory/1496-1-0x0000000000410440-mapping.dmp

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memory/1660-17-0x0000000000000000-mapping.dmp

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memory/1844-18-0x0000000002820000-0x0000000002821000-memory.dmp

Filesize
4KB

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memory/1900-15-0x0000000000000000-mapping.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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