3967b6142d993dc3f9e2c85a1a65c0db56c612362789e42a92872789e2ad54cd

Reason

Machine shutdown

General

Target

bdb77b2f35c0f3e79853ea7f8bdf5b29.in.exe
Size

14KB
MD5

bdb77b2f35c0f3e79853ea7f8bdf5b29
SHA1

72de04ee453d053c98ee3047574b0cf6c23b0d33
SHA256

4d27264a659cc593d5c936a36942835450b97aacf12b7b1673dc1afc01b420ef
SHA512

c2bb90612d76c3f572c1c62c9ecb1abf9581aebfcf07f459ad79bc7910480e6f5628af8f1deed54162ad070d759b2f237cadd2ce17c21318f275e8793d06ae74

Score

8^/10

persistence ransomware bootkit

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

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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1400429095-533421673-2598934218-1000\Software\Microsoft\Windows\CurrentVersion\Run\Run = "C:\\Users\\Admin\\AppData\\Local\\Temp\\edny5ue0.ouc.exe"	bdb77b2f35c0f3e79853ea7f8bdf5b29.in.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\ServiceProfiles\LocalService\winhttp\cachev3.dat	svchost.exe

Modifies data under HKEY_USERS 20 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0e-3e-6f-2c-c8-c7\WpadDecisionReason = "1"	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\StartColorMenu = "4288567808"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292311040"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "3288365271"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10"	LogonUI.exe
Key created	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0e-3e-6f-2c-c8-c7	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent	LogonUI.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = a6d8ff0076b9ed00429ce3000078d700005a9e000042750000264200f7630c00	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History\AutoColor = "0"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColorBalance = "89"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "1"	LogonUI.exe
Set value (data)	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0e-3e-6f-2c-c8-c7\WpadDecisionTime = a698bae50085d601	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0e-3e-6f-2c-c8-c7\WpadDecision = "0"	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292311040"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365271"	LogonUI.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3332	svchost.exe
Token: SeCreatePagefilePrivilege	3332	svchost.exe
Token: SeShutdownPrivilege	1488	shutdown.exe
Token: SeRemoteShutdownPrivilege	1488	shutdown.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2300	LogonUI.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 788 wrote to memory of 2468	788	bdb77b2f35c0f3e79853ea7f8bdf5b29.in.exe	73
PID 788 wrote to memory of 2468	788	bdb77b2f35c0f3e79853ea7f8bdf5b29.in.exe	73
PID 2468 wrote to memory of 1488	2468	cmd.exe	76
PID 2468 wrote to memory of 1488	2468	cmd.exe	76

C:\Users\Admin\AppData\Local\Temp\bdb77b2f35c0f3e79853ea7f8bdf5b29.in.exe
"C:\Users\Admin\AppData\Local\Temp\bdb77b2f35c0f3e79853ea7f8bdf5b29.in.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:788
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\qrladtxy.m1e.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2468
- - C:\Windows\system32\shutdown.exe
    shutdown /f /r /t 0
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:1488

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService -s WinHttpAutoProxySvc
1⤵
- Drops file in Windows directory
- Modifies data under HKEY_USERS
- Suspicious use of AdjustPrivilegeToken
PID:3332

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x0 /state0:0xa3aca055 /state1:0x41c64e6d
1⤵
- Modifies WinLogon to allow AutoLogon
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:2300

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

Winlogon Helper DLL

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/788-0-0x00007FFE435A0000-0x00007FFE43F8C000-memory.dmp

Filesize
9.9MB

Download
memory/788-1-0x000002AF7EA40000-0x000002AF7EA41000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

Errors

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads