1d3c2088b2d712f8006279db8acb9a1c6dc3037886a655d37bf75ea5fa6b9518

max time kernel
3s
max time network
5s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
13/02/2024, 12:11

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Reason

Machine shutdown

General

Target
Malware-database-main/PowerPoint.exe
Size 136KB
Sample240213-pcwzdshd2w
SHA256 9c3f8df80193c085912c9950c58051ae77c321975784cc069ceacd4f57d5861d
MD5 70108103a53123201ceb2e921fcfe83c
SHA1 c71799a6a6d09ee758b04cdf90a4ab76fbd2a7e3
SHA512 996701c65eee7f781c2d22dce63f4a95900f36b97a99dcf833045bce239a08b3c2f6326b3a808431cdab92d59161dd80763e44126578e160d79b7095175d276b
SSDEEP 1536:3VrdxBvcGdDHHtWv8udA1JYREgJ/qEOpsChnU4V1lyqHv4vAmOG9HSDKRppppp5B:1H5D0dSgo7ppTV1lyqPOAmOG9HSOD
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

bootkit persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1376	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

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

Modifies data under HKEY_USERS 15 IoCs

description	ioc	Process
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\Themes\History\AutoColor = "0"	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
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\ColorizationColorBalance = "89"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10"	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\ColorizationAfterglow = "3288365271"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "3"	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\AccentColor = "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	1376	sys3.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2380	LogonUI.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2244 wrote to memory of 1376	2244	PowerPoint.exe	84
PID 2244 wrote to memory of 1376	2244	PowerPoint.exe	84
PID 2244 wrote to memory of 1376	2244	PowerPoint.exe	84

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:2244
- 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:1376

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x4 /state0:0xa39ac055 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:2380

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

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Downloads

sys3.exe

Path C:\Users\Admin\AppData\Local\Temp\sys3.exe
Size 136KB
SHA256 9c3f8df80193c085912c9950c58051ae77c321975784cc069ceacd4f57d5861d
MD5 70108103a53123201ceb2e921fcfe83c
SHA1 c71799a6a6d09ee758b04cdf90a4ab76fbd2a7e3
SHA512 996701c65eee7f781c2d22dce63f4a95900f36b97a99dcf833045bce239a08b3c2f6326b3a808431cdab92d59161dd80763e44126578e160d79b7095175d276b
SSDEEP 1536:3VrdxBvcGdDHHtWv8udA1JYREgJ/qEOpsChnU4V1lyqHv4vAmOG9HSDKRppppp5B:1H5D0dSgo7ppTV1lyqPOAmOG9HSOD
MD5 SHA1 SHA512 SSDEEP

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systm.txt

Path C:\Users\Admin\AppData\Local\Temp\systm.txt
Size 70B
SHA256 da42851c854d6a2a0cfab513537bfe4bff184f8c63a04512cf00270b8fb34877
MD5 89f10072ebabf67c196f4c140e5b5349
SHA1 e36722bc9f76f6d8ba5d81d6a4db6bc6f34b9dfa
SHA512 eaa40272dd2f2df0abd171657ec0b1cf49f0a0ead48ad02f2c21550a7180cd5d4a1701596cab0fbdcff4d308edfb9ff96b2581ae089adddc2b5a410a4141af35
MD5 SHA1 SHA512

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memory/2244-0-0x000000002AA00000-0x000000002AA24000-memory.dmp

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memory/2244-6-0x000000002AA00000-0x000000002AA24000-memory.dmp

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Resubmissions

Analysis

Sharing

Errors

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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