596c4708e3d7355db99d02d955fbd55548a96d4c0a79e921f72ccdf4d540be16

Reason

Machine shutdown

General

Target

596c4708e3d7355db99d02d955fbd55548a96d4c0a79e921f72ccdf4d540be16.exe
Size

147KB
MD5

216275f9f46155c500a7bf6dff23a53b
SHA1

1e44415d7e40be3e3d575fcfd9a253594dc57e9f
SHA256

596c4708e3d7355db99d02d955fbd55548a96d4c0a79e921f72ccdf4d540be16
SHA512

dcfee9735685eda1f6d18d78ea887ed27970c56c97f8bb0367e257bd9c3861f1f618cdb919715d85335daf991c66657300b728436b441bd7e10abad99643da3b
SSDEEP

3072:sN0LwH/hUmnWV+IncRtLJiinnney8uMyL+MB:sNxPCDnqt0ineqL+m

Score

8^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3720	596c4708e3d7355db99d02d955fbd55548a96d4c0a79e921f72ccdf4d540be16.~01

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/3488-138-0x0000000000400000-0x000000000044F000-memory.dmp	upx
behavioral2/memory/3488-140-0x0000000000400000-0x000000000044F000-memory.dmp	upx

Loads dropped DLL 2 IoCs

pid	Process
3488	596c4708e3d7355db99d02d955fbd55548a96d4c0a79e921f72ccdf4d540be16.exe
3720	596c4708e3d7355db99d02d955fbd55548a96d4c0a79e921f72ccdf4d540be16.~01

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\WINLLSN.SKS	596c4708e3d7355db99d02d955fbd55548a96d4c0a79e921f72ccdf4d540be16.exe
File created	C:\Windows\SysWOW64\SYSLIB32.DLL	596c4708e3d7355db99d02d955fbd55548a96d4c0a79e921f72ccdf4d540be16.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SYSTEM.INI	596c4708e3d7355db99d02d955fbd55548a96d4c0a79e921f72ccdf4d540be16.exe

Modifies data under HKEY_USERS 15 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History	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\ColorizationColorBalance = "89"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10"	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 = "223"	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\CurrentVersion\Explorer\Accent\StartColorMenu = "4288567808"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM	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\ColorizationGlassAttribute = "1"	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\Explorer\Accent\AccentColorMenu = "4292311040"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365271"	LogonUI.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3720	596c4708e3d7355db99d02d955fbd55548a96d4c0a79e921f72ccdf4d540be16.~01

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3488	596c4708e3d7355db99d02d955fbd55548a96d4c0a79e921f72ccdf4d540be16.exe
3488	596c4708e3d7355db99d02d955fbd55548a96d4c0a79e921f72ccdf4d540be16.exe
3720	596c4708e3d7355db99d02d955fbd55548a96d4c0a79e921f72ccdf4d540be16.~01
2464	LogonUI.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3488 wrote to memory of 3720	3488	596c4708e3d7355db99d02d955fbd55548a96d4c0a79e921f72ccdf4d540be16.exe	81
PID 3488 wrote to memory of 3720	3488	596c4708e3d7355db99d02d955fbd55548a96d4c0a79e921f72ccdf4d540be16.exe	81
PID 3488 wrote to memory of 3720	3488	596c4708e3d7355db99d02d955fbd55548a96d4c0a79e921f72ccdf4d540be16.exe	81

C:\Users\Admin\AppData\Local\Temp\596c4708e3d7355db99d02d955fbd55548a96d4c0a79e921f72ccdf4d540be16.exe
"C:\Users\Admin\AppData\Local\Temp\596c4708e3d7355db99d02d955fbd55548a96d4c0a79e921f72ccdf4d540be16.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Drops file in Windows directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3488
- C:\Users\Admin\AppData\Local\Temp\596c4708e3d7355db99d02d955fbd55548a96d4c0a79e921f72ccdf4d540be16.~01
  C:\Users\Admin\AppData\Local\Temp\596c4708e3d7355db99d02d955fbd55548a96d4c0a79e921f72ccdf4d540be16.~01
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:3720

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x4 /state0:0xa39fd055 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:2464

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\596c4708e3d7355db99d02d955fbd55548a96d4c0a79e921f72ccdf4d540be16.~01

Filesize
116KB

MD5
04e4489c737a2ae90b0b351ed633e7a3

SHA1
528385ee31410cb0225fe0bb916f230467e5cd0c

SHA256
c2bfc2e45a5e4d5d66b0eb3c57bd1b8ebec6363774fcfa8f3d853bc27b5e0f61

SHA512
79adb22a2447033656bd0fc532a321db24b54dc70d83bf73f6ea8b583cfac5f26ed7a0d70d27562d02b1d8adb3cf628cc918c36abff31ecbaf070b9feeb98b86

Download Submit
C:\Users\Admin\AppData\Local\Temp\596c4708e3d7355db99d02d955fbd55548a96d4c0a79e921f72ccdf4d540be16.~01

Filesize
116KB

MD5
04e4489c737a2ae90b0b351ed633e7a3

SHA1
528385ee31410cb0225fe0bb916f230467e5cd0c

SHA256
c2bfc2e45a5e4d5d66b0eb3c57bd1b8ebec6363774fcfa8f3d853bc27b5e0f61

SHA512
79adb22a2447033656bd0fc532a321db24b54dc70d83bf73f6ea8b583cfac5f26ed7a0d70d27562d02b1d8adb3cf628cc918c36abff31ecbaf070b9feeb98b86

Download Submit
C:\Windows\SysWOW64\SYSLIB32.DLL

Filesize
4KB

MD5
f14bd85eeba2b828a655fe62931035e5

SHA1
c6f962ab17705248f1c54675f3f02ee162d5a2b9

SHA256
78350b4add47b0ffa7ad91912fd3937afe19671b08df79463abcbedb12e470db

SHA512
9a825d7976e42259f7396e9bc174ae76a12e3464b7ea452270105a5510f97388c757c70d973fc94eefb715862e3b6c99edbd86b6ca936cd6670c7f3b7ea6fde2

Download Submit
C:\Windows\SysWOW64\SYSLIB32.DLL

Filesize
4KB

MD5
f14bd85eeba2b828a655fe62931035e5

SHA1
c6f962ab17705248f1c54675f3f02ee162d5a2b9

SHA256
78350b4add47b0ffa7ad91912fd3937afe19671b08df79463abcbedb12e470db

SHA512
9a825d7976e42259f7396e9bc174ae76a12e3464b7ea452270105a5510f97388c757c70d973fc94eefb715862e3b6c99edbd86b6ca936cd6670c7f3b7ea6fde2

Download Submit
C:\Windows\SysWOW64\SYSLIB32.DLL

Filesize
4KB

MD5
f14bd85eeba2b828a655fe62931035e5

SHA1
c6f962ab17705248f1c54675f3f02ee162d5a2b9

SHA256
78350b4add47b0ffa7ad91912fd3937afe19671b08df79463abcbedb12e470db

SHA512
9a825d7976e42259f7396e9bc174ae76a12e3464b7ea452270105a5510f97388c757c70d973fc94eefb715862e3b6c99edbd86b6ca936cd6670c7f3b7ea6fde2

Download Submit
memory/3488-138-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/3488-139-0x0000000010000000-0x0000000010005000-memory.dmp

Filesize
20KB

Download
memory/3488-140-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/3720-132-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

Errors