da437cbf9bd975a8916654aca547e35bbf88df60fb18c57db07401efb33420c9

Analysis

max time kernel
15s
max time network
17s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
28-11-2024 06:06

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Reason

Machine shutdown

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General

Target

Uninstall.exe
Size

96KB
MD5

1b48e1d5d2a00a916c7df2f7abbd2713
SHA1

4a052f97b760fa2db89974069cbce2d3cb0d560a
SHA256

589dd07c5163c550e794000a67638d52ecf86477976527052fc99304aa74a46b
SHA512

d3dd85a74f4455266f8ac055c5f31c51fbba7fa6525a4eac0040676acc22fcab1d4fcf636c191521790afd2a7059a89f855a5081926f2ae994532e442501997b
SSDEEP

1536:WQpQ5EP0ijnRTXJNe5wP7+VCusaarmj8ZNF4a1OCWMSF5I7GcqRh:WQIURTXJ6stVmkOd8p8

Score

7^/10

discovery

Malware Config

Signatures

Deletes itself 1 IoCs

Processes:

Au_.exe

pid	Process
2496	Au_.exe

Executes dropped EXE 1 IoCs

Processes:

Au_.exe

pid	Process
2496	Au_.exe

Loads dropped DLL 4 IoCs

Processes:

Au_.exe

pid	Process
2496	Au_.exe
2496	Au_.exe
2496	Au_.exe
2496	Au_.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

Uninstall.exeAu_.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Uninstall.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Au_.exe

NSIS installer 2 IoCs

installer

Processes:

resource	yara_rule
behavioral28/files/0x0007000000023cc2-4.dat	nsis_installer_1
behavioral28/files/0x0007000000023cc2-4.dat	nsis_installer_2

Modifies data under HKEY_USERS 15 IoCs

Processes:

LogonUI.exe

description	ioc	Process
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 = "46"	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 = "4288567808"	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\Explorer\Accent	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\DWM\ColorizationBlurBalance = "1"	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\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
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM	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

Processes:

Au_.exe

description	pid	Process
Token: SeShutdownPrivilege	2496	Au_.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

LogonUI.exe

pid	Process
2376	LogonUI.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

Uninstall.exe

description	pid	Process	procid_target
PID 2060 wrote to memory of 2496	2060	Uninstall.exe	82
PID 2060 wrote to memory of 2496	2060	Uninstall.exe	82
PID 2060 wrote to memory of 2496	2060	Uninstall.exe	82

C:\Users\Admin\AppData\Local\Temp\Uninstall.exe
"C:\Users\Admin\AppData\Local\Temp\Uninstall.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2060
- C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe
  "C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe" _?=C:\Users\Admin\AppData\Local\Temp\
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2496

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x4 /state0:0xa39ac055 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:2376

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\nsfB9AD.tmp\GetVersion.dll

Filesize
9KB

MD5
225f776172f1baccd2721a6e5d512b36

SHA1
2dbbc86f7b0285682880a627b56a75de09f4bed6

SHA256
ecfcbe30f5b248673f9cbebb734b9981ed14b06380ea787c563d67b30e2d069e

SHA512
4b99a5ac68122501a5913cf54bd3ae99d851d57656b0e136980122739cceef739fa2d5ea097f2442068b9489a4c25ea0884653c41d85f27f25996792bf6c21bb

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsfB9AD.tmp\System.dll

Filesize
11KB

MD5
c17103ae9072a06da581dec998343fc1

SHA1
b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

SHA256
dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

SHA512
d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsfB9AD.tmp\modern-wizard.bmp

Filesize
201KB

MD5
5f728e4e6b970db76c64be8ca3cafc87

SHA1
b7481efd9f6938903214451d792a8b13a645c922

SHA256
aea40659bdb08337064640ea8b4f171881d37456b37b3e2899349ac04f0889c5

SHA512
2cc4e870290f8faddc8eca1a03a1efb34711b3951e263a79f259fd998a9a1f957dbf58c110c5fe64febd414ec7a22e125353f9d5c363866bd0d4298452fdadc8

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsfB9AD.tmp\nsDialogs.dll

Filesize
9KB

MD5
c10e04dd4ad4277d5adc951bb331c777

SHA1
b1e30808198a3ae6d6d1cca62df8893dc2a7ad43

SHA256
e31ad6c6e82e603378cb6b80e67d0e0dcd9cf384e1199ac5a65cb4935680021a

SHA512
853a5564bf751d40484ea482444c6958457cb4a17fb973cf870f03f201b8b2643be41bccde00f6b2026dc0c3d113e6481b0dc4c7b0f3ae7966d38c92c6b5862e

Download Submit
C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe

Filesize
96KB

MD5
1b48e1d5d2a00a916c7df2f7abbd2713

SHA1
4a052f97b760fa2db89974069cbce2d3cb0d560a

SHA256
589dd07c5163c550e794000a67638d52ecf86477976527052fc99304aa74a46b

SHA512
d3dd85a74f4455266f8ac055c5f31c51fbba7fa6525a4eac0040676acc22fcab1d4fcf636c191521790afd2a7059a89f855a5081926f2ae994532e442501997b

Download Submit

Analysis

Sharing

Errors

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads