Analysis
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max time kernel
7s -
max time network
9s -
platform
windows10-1703_x64 -
resource
win10-20230220-en -
resource tags
arch:x64arch:x86image:win10-20230220-enlocale:en-usos:windows10-1703-x64system -
submitted
31-03-2023 22:19
Static task
static1
Behavioral task
behavioral1
Sample
Endermanch@PowerPoint.exe
Resource
win10-20230220-en
Errors
General
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Target
Endermanch@PowerPoint.exe
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Size
136KB
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MD5
70108103a53123201ceb2e921fcfe83c
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SHA1
c71799a6a6d09ee758b04cdf90a4ab76fbd2a7e3
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SHA256
9c3f8df80193c085912c9950c58051ae77c321975784cc069ceacd4f57d5861d
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SHA512
996701c65eee7f781c2d22dce63f4a95900f36b97a99dcf833045bce239a08b3c2f6326b3a808431cdab92d59161dd80763e44126578e160d79b7095175d276b
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SSDEEP
1536:3VrdxBvcGdDHHtWv8udA1JYREgJ/qEOpsChnU4V1lyqHv4vAmOG9HSDKRppppp5B:1H5D0dSgo7ppTV1lyqPOAmOG9HSOD
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
Processes:
sys3.exepid process 2460 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.
Processes:
Endermanch@PowerPoint.exesys3.exedescription ioc process File opened for modification \??\PHYSICALDRIVE0 Endermanch@PowerPoint.exe File opened for modification \??\PHYSICALDRIVE0 sys3.exe -
Modifies data under HKEY_USERS 15 IoCs
Processes:
LogonUI.exedescription ioc process 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\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292311040" 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\AccentColor = "4292311040" 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 = "1" 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\CurrentVersion\Explorer\Accent\StartColorMenu = "4288567808" LogonUI.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM 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\ColorizationColorBalance = "89" 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 -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
sys3.exedescription pid process Token: SeShutdownPrivilege 2460 sys3.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
LogonUI.exepid process 2540 LogonUI.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
Endermanch@PowerPoint.exedescription pid process target process PID 1444 wrote to memory of 2460 1444 Endermanch@PowerPoint.exe sys3.exe PID 1444 wrote to memory of 2460 1444 Endermanch@PowerPoint.exe sys3.exe PID 1444 wrote to memory of 2460 1444 Endermanch@PowerPoint.exe sys3.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Endermanch@PowerPoint.exe"C:\Users\Admin\AppData\Local\Temp\Endermanch@PowerPoint.exe"1⤵
- Writes to the Master Boot Record (MBR)
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\sys3.exeC:\Users\Admin\AppData\Local\Temp\\sys3.exe2⤵
- Executes dropped EXE
- Writes to the Master Boot Record (MBR)
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\LogonUI.exe"LogonUI.exe" /flags:0x0 /state0:0xa3ac8055 /state1:0x41c64e6d1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\sys3.exeFilesize
136KB
MD570108103a53123201ceb2e921fcfe83c
SHA1c71799a6a6d09ee758b04cdf90a4ab76fbd2a7e3
SHA2569c3f8df80193c085912c9950c58051ae77c321975784cc069ceacd4f57d5861d
SHA512996701c65eee7f781c2d22dce63f4a95900f36b97a99dcf833045bce239a08b3c2f6326b3a808431cdab92d59161dd80763e44126578e160d79b7095175d276b
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C:\Users\Admin\AppData\Local\Temp\sys3.exeFilesize
136KB
MD570108103a53123201ceb2e921fcfe83c
SHA1c71799a6a6d09ee758b04cdf90a4ab76fbd2a7e3
SHA2569c3f8df80193c085912c9950c58051ae77c321975784cc069ceacd4f57d5861d
SHA512996701c65eee7f781c2d22dce63f4a95900f36b97a99dcf833045bce239a08b3c2f6326b3a808431cdab92d59161dd80763e44126578e160d79b7095175d276b
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C:\Users\Admin\AppData\Local\Temp\systm.txtFilesize
59B
MD5ab7368e081dc109f4133ffd943c98b74
SHA11847691b3535b25f368389327543392eafd3e4fa
SHA2566c2c3417ded140721c60368f64f02b4d4ed5f39b528450b75d2475da4b80c1ae
SHA512e59e763b66ab716a72d3121d8a8b9b6a2dd4beb89e949202ae55ef0a1cef316d56071df8a41a587c605d1575c18f2f4f3a41d2cb174a89558722e9730a913912
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memory/1444-121-0x000000002AA00000-0x000000002AA24000-memory.dmpFilesize
144KB
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memory/2460-127-0x000000002AA00000-0x000000002AA24000-memory.dmpFilesize
144KB