783897bfe96a467f68265832ff2160d8a5568c3cfc5273af8f4515be20099bc7

Analysis

max time kernel
41s
max time network
46s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
26/01/2024, 00:35

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Reason

Machine shutdown

Report Analysis Logs

General

Target

75ebd0b8c5b7494b061f25c11a7958e4.exe
Size

100KB
MD5

75ebd0b8c5b7494b061f25c11a7958e4
SHA1

098e7d2549d69ec617e516cb73828c57f1a6fb9d
SHA256

783897bfe96a467f68265832ff2160d8a5568c3cfc5273af8f4515be20099bc7
SHA512

f6e5e1bc11ea6343abec4bcc2d150c3078b1fd7f44194bac58a0dfefaaae21f301733fa550bc98a49c273efb31dd3a497c4154cc30b30c8b27ac1a03ccec60e9
SSDEEP

1536:vkxSVMQsITgUn3ZcYKx5YOPcmFtAt7E/opNR2g/pFbs2G8YMRrBtsoz1/lDtW:VVMEZp1m5Y4E7EFGFDsoxto

Score

8^/10

persistence

Malware Config

Signatures

Modifies AppInit DLL entries 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1547.001

Modify Registry
T1112

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\nrxlzsd.dll	75ebd0b8c5b7494b061f25c11a7958e4.exe

Modifies data under HKEY_USERS 15 IoCs

description	ioc	Process
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\CurrentVersion\Themes\History\AutoColor = "0"	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\AccentColor = "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\ColorizationColorBalance = "89"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "85"	LogonUI.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\AccentColorMenu = "4292311040"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365271"	LogonUI.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\DWM\ColorizationGlassAttribute = "1"	LogonUI.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeShutdownPrivilege	2680	75ebd0b8c5b7494b061f25c11a7958e4.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
756	LogonUI.exe

C:\Users\Admin\AppData\Local\Temp\75ebd0b8c5b7494b061f25c11a7958e4.exe
"C:\Users\Admin\AppData\Local\Temp\75ebd0b8c5b7494b061f25c11a7958e4.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
PID:2680

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x4 /state0:0xa3986055 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:756

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2680-0-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/2680-1-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/2680-2-0x0000000002290000-0x0000000002291000-memory.dmp

Filesize
4KB

Download
memory/2680-4-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download