1ac03e54a68d5fea056698f6d59cd7bf720456dc4bea78b30c59057f455bb585

Analysis

max time kernel
79s
max time network
126s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
02-10-2022 14:06

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Reason

Machine shutdown

Report Analysis Logs

General

Target

1ac03e54a68d5fea056698f6d59cd7bf720456dc4bea78b30c59057f455bb585.exe
Size

88KB
MD5

6361ac279fba627837d411fbce6a0b31
SHA1

0efc7ad42bba35be3103feafda55e9377da44662
SHA256

1ac03e54a68d5fea056698f6d59cd7bf720456dc4bea78b30c59057f455bb585
SHA512

e064a768a2318ee5d49a1da3d931d704dd5c95a4313085e7e3c6e7bbed763df3bb8932e23008054448fa553bef8e9ebe692a0abcc6be8a8b1159482cbc0bd734
SSDEEP

1536:2NyYZNui7bSAuPRxeIk1jFUtWrvHMnne90Bxj//pJi2vQwlp4vFqdt2ofJlIU:2NyYZNtbSZtkotWQnneSvjJ8w34u2ofX

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\mudyzan.dll	1ac03e54a68d5fea056698f6d59cd7bf720456dc4bea78b30c59057f455bb585.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\CurrentVersion\Explorer\Accent\AccentColorMenu = "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\ColorizationAfterglow = "3288365271"	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\Explorer\Accent	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\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\EnableWindowColorization = "169"	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
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM	LogonUI.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeShutdownPrivilege	4436	1ac03e54a68d5fea056698f6d59cd7bf720456dc4bea78b30c59057f455bb585.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3900	LogonUI.exe

C:\Users\Admin\AppData\Local\Temp\1ac03e54a68d5fea056698f6d59cd7bf720456dc4bea78b30c59057f455bb585.exe
"C:\Users\Admin\AppData\Local\Temp\1ac03e54a68d5fea056698f6d59cd7bf720456dc4bea78b30c59057f455bb585.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
PID:4436

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x4 /state0:0xa39ed855 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:3900

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

Replay Monitor

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Downloads

memory/4436-132-0x0000000001000000-0x0000000001017000-memory.dmp

Filesize
92KB

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memory/4436-133-0x0000000001000000-0x0000000001017000-memory.dmp

Filesize
92KB

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