b1f2494108473a7bc79542982347d331170447f1d5039d1f23997cea02341f21

Analysis

max time kernel
14s
max time network
23s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
06-12-2022 19:36

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Reason

Machine shutdown

Report Analysis Logs

General

Target

b1f2494108473a7bc79542982347d331170447f1d5039d1f23997cea02341f21.exe
Size

116KB
MD5

1ac1814856f7cd43169287d57c04a8ae
SHA1

c3516b0682bf8c560f0cbb169032629d0499408d
SHA256

b1f2494108473a7bc79542982347d331170447f1d5039d1f23997cea02341f21
SHA512

98ee201e7572e41ef75bb4f7000961b5fab0257a662db399b9667ade3f53338a64f537594bef388b9785498325df0be425607a91ddbeb2e4fc9c1a8f48f89c0f
SSDEEP

1536:ZwV0nCvY1UI+XxfFNi4d1f3ovRWEHyDsRHED9bXBQ6r6RxcoCxqDKodFFkfAwwr8:pn5rArvuNHyIRHEZTG6ezcoCxqDrtg

Score

8^/10

persistence

Malware Config

Signatures

Modifies AppInit DLL entries 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1060

Modify Registry
T1112

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\gzfokkm.dll	b1f2494108473a7bc79542982347d331170447f1d5039d1f23997cea02341f21.exe

Modifies data under HKEY_USERS 15 IoCs

description	ioc	Process
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\EnableWindowColorization = "223"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365271"	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\ColorizationGlassAttribute = "1"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM	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\ColorizationAfterglow = "3288365271"	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\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292311040"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292311040"	LogonUI.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = a6d8ff0076b9ed00429ce3000078d700005a9e000042750000264200f7630c00	LogonUI.exe

NTFS ADS 1 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Local\Temp\:	b1f2494108473a7bc79542982347d331170447f1d5039d1f23997cea02341f21.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeShutdownPrivilege	5016	b1f2494108473a7bc79542982347d331170447f1d5039d1f23997cea02341f21.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1440	LogonUI.exe

C:\Users\Admin\AppData\Local\Temp\b1f2494108473a7bc79542982347d331170447f1d5039d1f23997cea02341f21.exe
"C:\Users\Admin\AppData\Local\Temp\b1f2494108473a7bc79542982347d331170447f1d5039d1f23997cea02341f21.exe"
1⤵
- Drops file in System32 directory
- NTFS ADS
- Suspicious use of AdjustPrivilegeToken
PID:5016

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x4 /state0:0xa39eb855 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:1440

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/5016-132-0x0000000001000000-0x000000000101E000-memory.dmp

Filesize
120KB

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memory/5016-133-0x0000000001000000-0x000000000101E000-memory.dmp

Filesize
120KB

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