4ea67b7492a09d11d99c929ef0b792d149ecfea16ec7c8372476b9dae3e7322b

Analysis

max time kernel
145s
max time network
133s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
03/01/2024, 11:52

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General

Target

4ea67b7492a09d11d99c929ef0b792d149ecfea16ec7c8372476b9dae3e7322b.dll
Size

513KB
MD5

b829237c1668f16a09ef6a9a4037b0eb
SHA1

6c64820fb947bd3e4f65b1effc8e48809d0d1a2f
SHA256

4ea67b7492a09d11d99c929ef0b792d149ecfea16ec7c8372476b9dae3e7322b
SHA512

404068626d1d892b4c7eedf10f3d25b18e3bc79ce3a1aace53e3df00c2a6d6d3edaf7a288e967d8116df518fd4927187e74051a0da418bc989fc94c821916cdd
SSDEEP

12288:W+1taNyuxCINuSXNB3MnWaaGfOB9YZJfy9TlB/BjvrEH7H:fCxCIDcZvOBCrfk3rEH7H

Score

7^/10

upx

Malware Config

Signatures

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x000600000001e5df-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
4312	regsvr32.exe

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4312-4-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/4312-7-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/files/0x000600000001e5df-1.dat	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	regsvr32.exe

Modifies registry class 19 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E1120EAD-71E1-48C8-91CD-C405A22F8B7C}\VersionIndependentProgID\ = "ASUSAuraAmbientHal.Hal"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\ASUSAuraAmbientHal.Hal.1\ = "ASUSAuraAmbientHal"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E1120EAD-71E1-48C8-91CD-C405A22F8B7C}\InprocServer32\ThreadingModel = "Both"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E1120EAD-71E1-48C8-91CD-C405A22F8B7C}\ProgID\ = "ASUSAuraAmbientHal.Hal.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\ASUSAuraAmbientHal.Hal\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\ASUSAuraAmbientHal.Hal\CurVer	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E1120EAD-71E1-48C8-91CD-C405A22F8B7C}\ = "ASUSAuraAmbientHal"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E1120EAD-71E1-48C8-91CD-C405A22F8B7C}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E1120EAD-71E1-48C8-91CD-C405A22F8B7C}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\ASUSAuraAmbientHal.Hal	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\ASUSAuraAmbientHal.Hal.1\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\ASUSAuraAmbientHal.Hal.1\CLSID\ = "{E1120EAD-71E1-48C8-91CD-C405A22F8B7C}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E1120EAD-71E1-48C8-91CD-C405A22F8B7C}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E1120EAD-71E1-48C8-91CD-C405A22F8B7C}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\4ea67b7492a09d11d99c929ef0b792d149ecfea16ec7c8372476b9dae3e7322b.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E1120EAD-71E1-48C8-91CD-C405A22F8B7C}\VersionIndependentProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\ASUSAuraAmbientHal.Hal\ = "ASUSAuraAmbientHal"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\ASUSAuraAmbientHal.Hal\CLSID\ = "{E1120EAD-71E1-48C8-91CD-C405A22F8B7C}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\ASUSAuraAmbientHal.Hal\CurVer\ = "ASUSAuraAmbientHal.Hal.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\ASUSAuraAmbientHal.Hal.1	regsvr32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4312	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3548 wrote to memory of 4312	3548	regsvr32.exe	14
PID 3548 wrote to memory of 4312	3548	regsvr32.exe	14
PID 3548 wrote to memory of 4312	3548	regsvr32.exe	14

C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\4ea67b7492a09d11d99c929ef0b792d149ecfea16ec7c8372476b9dae3e7322b.dll
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
PID:4312

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\4ea67b7492a09d11d99c929ef0b792d149ecfea16ec7c8372476b9dae3e7322b.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:3548

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Program Files\Common Files\System\symsrv.dll

Filesize
67KB

MD5
7574cf2c64f35161ab1292e2f532aabf

SHA1
14ba3fa927a06224dfe587014299e834def4644f

SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

Download Submit
memory/4312-4-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/4312-7-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/4312-6-0x0000000074840000-0x00000000748AE000-memory.dmp

Filesize
440KB

Download
memory/4312-5-0x0000000074840000-0x00000000748AE000-memory.dmp

Filesize
440KB

Download