1d3c2088b2d712f8006279db8acb9a1c6dc3037886a655d37bf75ea5fa6b9518

max time kernel
2s
max time network
6s
platform
windows11-21h2_x64
resource
win11-20240426-en
resource tags

arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system
submitted
27-05-2024 21:15

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Reason

Machine shutdown

Report Analysis Logs

General

Target

Malware-database-main/PowerPoint.exe
Size

136KB
MD5

70108103a53123201ceb2e921fcfe83c
SHA1

c71799a6a6d09ee758b04cdf90a4ab76fbd2a7e3
SHA256

9c3f8df80193c085912c9950c58051ae77c321975784cc069ceacd4f57d5861d
SHA512

996701c65eee7f781c2d22dce63f4a95900f36b97a99dcf833045bce239a08b3c2f6326b3a808431cdab92d59161dd80763e44126578e160d79b7095175d276b
SSDEEP

1536:3VrdxBvcGdDHHtWv8udA1JYREgJ/qEOpsChnU4V1lyqHv4vAmOG9HSDKRppppp5B:1H5D0dSgo7ppTV1lyqPOAmOG9HSOD

Score

7^/10

bootkit persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

sys3.exe

pid process

4164 sys3.exe
Writes to the Master Boot Record (MBR) 1 TTPs 2 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
bootkit persistence

Bootkit
T1542.003

Processes:

PowerPoint.exesys3.exe

description ioc process

File opened for modification \??\PHYSICALDRIVE0 PowerPoint.exe
File opened for modification \??\PHYSICALDRIVE0 sys3.exe

pid	process
4164	sys3.exe

description	ioc	process
File opened for modification	\??\PHYSICALDRIVE0	PowerPoint.exe
File opened for modification	\??\PHYSICALDRIVE0	sys3.exe

Modifies data under HKEY_USERS 15 IoCs

Processes:

LogonUI.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "3288365268"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292114432"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365268"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColorBalance = "89"	LogonUI.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = 99ebff004cc2ff000091f8000078d4000067c000003e9200001a6800f7630c00	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\StartColorMenu = "4290799360"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292114432"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM	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\ColorizationAfterglowBalance = "10"	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\Themes\History\AutoColor = "0"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "54"	LogonUI.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

sys3.exe

description pid process

Token: SeShutdownPrivilege 4164 sys3.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

LogonUI.exe

pid process

2916 LogonUI.exe

description	pid	process
Token: SeShutdownPrivilege	4164	sys3.exe

pid	process
2916	LogonUI.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

PowerPoint.exe

description	pid	process	target process
PID 2064 wrote to memory of 4164	2064	PowerPoint.exe	sys3.exe
PID 2064 wrote to memory of 4164	2064	PowerPoint.exe	sys3.exe
PID 2064 wrote to memory of 4164	2064	PowerPoint.exe	sys3.exe

C:\Users\Admin\AppData\Local\Temp\Malware-database-main\PowerPoint.exe
"C:\Users\Admin\AppData\Local\Temp\Malware-database-main\PowerPoint.exe"
1⤵
- Writes to the Master Boot Record (MBR)
- Suspicious use of WriteProcessMemory
PID:2064
- C:\Users\Admin\AppData\Local\Temp\sys3.exe
  C:\Users\Admin\AppData\Local\Temp\\sys3.exe
  2⤵
  - Executes dropped EXE
  - Writes to the Master Boot Record (MBR)
  - Suspicious use of AdjustPrivilegeToken
  PID:4164

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x4 /state0:0xa3a07855 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:2916

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Defense Evasion

Pre-OS Boot

T1542

Bootkit

T1542.003

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\sys3.exe

Filesize
136KB

MD5
70108103a53123201ceb2e921fcfe83c

SHA1
c71799a6a6d09ee758b04cdf90a4ab76fbd2a7e3

SHA256
9c3f8df80193c085912c9950c58051ae77c321975784cc069ceacd4f57d5861d

SHA512
996701c65eee7f781c2d22dce63f4a95900f36b97a99dcf833045bce239a08b3c2f6326b3a808431cdab92d59161dd80763e44126578e160d79b7095175d276b

Download Submit
C:\Users\Admin\AppData\Local\Temp\systm.txt

Filesize
70B

MD5
89f10072ebabf67c196f4c140e5b5349

SHA1
e36722bc9f76f6d8ba5d81d6a4db6bc6f34b9dfa

SHA256
da42851c854d6a2a0cfab513537bfe4bff184f8c63a04512cf00270b8fb34877

SHA512
eaa40272dd2f2df0abd171657ec0b1cf49f0a0ead48ad02f2c21550a7180cd5d4a1701596cab0fbdcff4d308edfb9ff96b2581ae089adddc2b5a410a4141af35

Download Submit
memory/2064-0-0x000000002AA00000-0x000000002AA24000-memory.dmp

Filesize
144KB

Download
memory/2064-6-0x000000002AA00000-0x000000002AA24000-memory.dmp

Filesize
144KB

Download

Resubmissions

Analysis