d049dae3713d32ba72b916c9670554adf533d2ec6f63526f060224b43a8e0dbf | Triage

Analysis

max time kernel
100s
max time network
132s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
24-08-2022 13:38

Sharing

Report Analysis Logs

General

Target

LOCALES/MSAMRNBE.dll
Size

201KB
MD5

312cc1a799f187bdd6872a44e94f51be
SHA1

d9717ea3770959859bfd775f02fee7fbe1cf9214
SHA256

f90cd8a5ab1200a8b9567fe183b91b2d0f5747d9895b4f1a2f2fdc24ee856d1f
SHA512

b6fa6dfafe1bc6171b8fe1e2e0afbbc673bed52a7f101cfae634ae5bba912b6d288d736e2ef35032e4de917c0d10cb844b7767f45cf6fe10e22d6f6eda48f8f3
SSDEEP

6144:Zratq0WGuUgMcPtHl6O5COtYzc7iJT9j:EtpWGgPTGc76j

Score

1^/10

Malware Config

Signatures

Modifies registry class 13 IoCs

Processes:

regsvr32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\WOW6432Node\CLSID\{2FAE8AFE-04A3-423a-A814-85DB454712B0}\InProcServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2FAE8AFE-04A3-423a-A814-85DB454712B0}\InProcServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\MediaFoundation\Transforms\2FAE8AFE-04A3-423a-A814-85DB454712B0\ = "MS AMRNB Encoder MFT"	regsvr32.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\MediaFoundation\Transforms\2FAE8AFE-04A3-423a-A814-85DB454712B0\OutputTypes = 6175647300001000800000aa00389b716173000000001000800000aa00389b716175647300001000800000aa00389b71726d61737a764d49b478f29d25dc9037	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\MediaFoundation\Transforms\Categories\91c64bd0-f91e-4d8c-9276-db248279d975\2fae8afe-04a3-423a-a814-85db454712b0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\MediaFoundation\Transforms\Categories\91c64bd0-f91e-4d8c-9276-db248279d975	regsvr32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\WOW6432Node\CLSID\{2FAE8AFE-04A3-423a-A814-85DB454712B0}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2FAE8AFE-04A3-423a-A814-85DB454712B0}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\MediaFoundation\Transforms	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\MediaFoundation\Transforms\2fae8afe-04a3-423a-a814-85db454712b0	regsvr32.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\MediaFoundation\Transforms\2FAE8AFE-04A3-423a-A814-85DB454712B0\InputTypes = 6175647300001000800000aa00389b710100000000001000800000aa00389b71	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\MediaFoundation\Transforms\Categories	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

regsvr32.exe

description	pid	process	target process
PID 3128 wrote to memory of 4112	3128	regsvr32.exe	regsvr32.exe
PID 3128 wrote to memory of 4112	3128	regsvr32.exe	regsvr32.exe
PID 3128 wrote to memory of 4112	3128	regsvr32.exe	regsvr32.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\LOCALES\MSAMRNBE.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:3128

C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\LOCALES\MSAMRNBE.dll
2⤵
- Modifies registry class
PID:4112

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

memory/4112-132-0x0000000000000000-mapping.dmp

Download