Malware Analysis Report

2025-08-10 23:16

Sample ID 221101-nvex6acebn
Target b16161ead045dcea22af9ba8f61bb3803df87092c749a714d18ca1036be81b09
SHA256 b16161ead045dcea22af9ba8f61bb3803df87092c749a714d18ca1036be81b09
Tags
score
8/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
8/10

SHA256

b16161ead045dcea22af9ba8f61bb3803df87092c749a714d18ca1036be81b09

Threat Level: Likely malicious

The file b16161ead045dcea22af9ba8f61bb3803df87092c749a714d18ca1036be81b09 was found to be: Likely malicious.

Malicious Activity Summary


Executes dropped EXE

Suspicious use of SetThreadContext

Creates scheduled task(s)

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-11-01 11:42

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2022-11-01 11:42

Reported

2022-11-01 11:45

Platform

win10v2004-20220901-en

Max time kernel

131s

Max time network

127s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b16161ead045dcea22af9ba8f61bb3803df87092c749a714d18ca1036be81b09.exe"

Signatures

Creates scheduled task(s)

persistence
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3564 wrote to memory of 5012 N/A C:\Users\Admin\AppData\Local\Temp\b16161ead045dcea22af9ba8f61bb3803df87092c749a714d18ca1036be81b09.exe C:\Users\Admin\AppData\Local\Temp\b16161ead045dcea22af9ba8f61bb3803df87092c749a714d18ca1036be81b09.exe
PID 3564 wrote to memory of 5012 N/A C:\Users\Admin\AppData\Local\Temp\b16161ead045dcea22af9ba8f61bb3803df87092c749a714d18ca1036be81b09.exe C:\Users\Admin\AppData\Local\Temp\b16161ead045dcea22af9ba8f61bb3803df87092c749a714d18ca1036be81b09.exe
PID 3564 wrote to memory of 5012 N/A C:\Users\Admin\AppData\Local\Temp\b16161ead045dcea22af9ba8f61bb3803df87092c749a714d18ca1036be81b09.exe C:\Users\Admin\AppData\Local\Temp\b16161ead045dcea22af9ba8f61bb3803df87092c749a714d18ca1036be81b09.exe
PID 3564 wrote to memory of 5012 N/A C:\Users\Admin\AppData\Local\Temp\b16161ead045dcea22af9ba8f61bb3803df87092c749a714d18ca1036be81b09.exe C:\Users\Admin\AppData\Local\Temp\b16161ead045dcea22af9ba8f61bb3803df87092c749a714d18ca1036be81b09.exe
PID 3564 wrote to memory of 5012 N/A C:\Users\Admin\AppData\Local\Temp\b16161ead045dcea22af9ba8f61bb3803df87092c749a714d18ca1036be81b09.exe C:\Users\Admin\AppData\Local\Temp\b16161ead045dcea22af9ba8f61bb3803df87092c749a714d18ca1036be81b09.exe
PID 3564 wrote to memory of 5012 N/A C:\Users\Admin\AppData\Local\Temp\b16161ead045dcea22af9ba8f61bb3803df87092c749a714d18ca1036be81b09.exe C:\Users\Admin\AppData\Local\Temp\b16161ead045dcea22af9ba8f61bb3803df87092c749a714d18ca1036be81b09.exe
PID 3564 wrote to memory of 5012 N/A C:\Users\Admin\AppData\Local\Temp\b16161ead045dcea22af9ba8f61bb3803df87092c749a714d18ca1036be81b09.exe C:\Users\Admin\AppData\Local\Temp\b16161ead045dcea22af9ba8f61bb3803df87092c749a714d18ca1036be81b09.exe
PID 3564 wrote to memory of 5012 N/A C:\Users\Admin\AppData\Local\Temp\b16161ead045dcea22af9ba8f61bb3803df87092c749a714d18ca1036be81b09.exe C:\Users\Admin\AppData\Local\Temp\b16161ead045dcea22af9ba8f61bb3803df87092c749a714d18ca1036be81b09.exe
PID 3564 wrote to memory of 5012 N/A C:\Users\Admin\AppData\Local\Temp\b16161ead045dcea22af9ba8f61bb3803df87092c749a714d18ca1036be81b09.exe C:\Users\Admin\AppData\Local\Temp\b16161ead045dcea22af9ba8f61bb3803df87092c749a714d18ca1036be81b09.exe
PID 5012 wrote to memory of 5008 N/A C:\Users\Admin\AppData\Local\Temp\b16161ead045dcea22af9ba8f61bb3803df87092c749a714d18ca1036be81b09.exe C:\Windows\SysWOW64\schtasks.exe
PID 5012 wrote to memory of 5008 N/A C:\Users\Admin\AppData\Local\Temp\b16161ead045dcea22af9ba8f61bb3803df87092c749a714d18ca1036be81b09.exe C:\Windows\SysWOW64\schtasks.exe
PID 5012 wrote to memory of 5008 N/A C:\Users\Admin\AppData\Local\Temp\b16161ead045dcea22af9ba8f61bb3803df87092c749a714d18ca1036be81b09.exe C:\Windows\SysWOW64\schtasks.exe
PID 1280 wrote to memory of 2664 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 1280 wrote to memory of 2664 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 1280 wrote to memory of 2664 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 1280 wrote to memory of 4368 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 1280 wrote to memory of 4368 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 1280 wrote to memory of 4368 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 1280 wrote to memory of 4368 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 1280 wrote to memory of 4368 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 1280 wrote to memory of 4368 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 1280 wrote to memory of 4368 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 1280 wrote to memory of 4368 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 1280 wrote to memory of 4368 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 4368 wrote to memory of 2884 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Windows\SysWOW64\schtasks.exe
PID 4368 wrote to memory of 2884 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Windows\SysWOW64\schtasks.exe
PID 4368 wrote to memory of 2884 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Windows\SysWOW64\schtasks.exe
PID 3540 wrote to memory of 3008 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 3540 wrote to memory of 3008 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 3540 wrote to memory of 3008 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 3540 wrote to memory of 3008 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 3540 wrote to memory of 3008 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 3540 wrote to memory of 3008 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 3540 wrote to memory of 3008 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 3540 wrote to memory of 3008 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 3540 wrote to memory of 3008 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe

Processes

C:\Users\Admin\AppData\Local\Temp\b16161ead045dcea22af9ba8f61bb3803df87092c749a714d18ca1036be81b09.exe

"C:\Users\Admin\AppData\Local\Temp\b16161ead045dcea22af9ba8f61bb3803df87092c749a714d18ca1036be81b09.exe"

C:\Users\Admin\AppData\Local\Temp\b16161ead045dcea22af9ba8f61bb3803df87092c749a714d18ca1036be81b09.exe

C:\Users\Admin\AppData\Local\Temp\b16161ead045dcea22af9ba8f61bb3803df87092c749a714d18ca1036be81b09.exe

C:\Windows\SysWOW64\schtasks.exe

/C /create /F /sc minute /mo 1 /tn "Telemetry Logging" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe"

C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe

C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe

C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe

C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe

C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe

C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe

C:\Windows\SysWOW64\schtasks.exe

/C /create /F /sc minute /mo 1 /tn "Telemetry Logging" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe"

C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe

C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe

C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe

C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe

Network

Country Destination Domain Proto
US 93.184.221.240:80 tcp
US 20.189.173.1:443 tcp
NL 87.248.202.1:80 tcp
US 93.184.221.240:80 tcp

Files

memory/3564-132-0x0000000000B70000-0x0000000000BC6000-memory.dmp

memory/3564-133-0x0000000008090000-0x0000000008634000-memory.dmp

memory/3564-134-0x0000000007B80000-0x0000000007C12000-memory.dmp

memory/3564-135-0x0000000007E20000-0x0000000007E96000-memory.dmp

memory/3564-136-0x0000000007B00000-0x0000000007B1E000-memory.dmp

memory/5012-137-0x0000000000000000-mapping.dmp

memory/5012-138-0x0000000000400000-0x0000000000406000-memory.dmp

memory/5012-140-0x0000000000400000-0x0000000000406000-memory.dmp

memory/5008-141-0x0000000000000000-mapping.dmp

memory/5012-142-0x0000000000400000-0x0000000000406000-memory.dmp

C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe

MD5 750c5df3ef704bd72b5b7e7051ce664c
SHA1 fc1e729ff6bf2a4e8a474526629f0273600e4cc7
SHA256 b16161ead045dcea22af9ba8f61bb3803df87092c749a714d18ca1036be81b09
SHA512 0d507b1db51f5360c6d5f77129d2b6ce459261b4c3b92198c5f7a9a2cdb3ae2ccd7b0ba6729c1542ac6435d5ebb336d144e136af64e6f1780e12288480671f8b

C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe

MD5 750c5df3ef704bd72b5b7e7051ce664c
SHA1 fc1e729ff6bf2a4e8a474526629f0273600e4cc7
SHA256 b16161ead045dcea22af9ba8f61bb3803df87092c749a714d18ca1036be81b09
SHA512 0d507b1db51f5360c6d5f77129d2b6ce459261b4c3b92198c5f7a9a2cdb3ae2ccd7b0ba6729c1542ac6435d5ebb336d144e136af64e6f1780e12288480671f8b

C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe

MD5 750c5df3ef704bd72b5b7e7051ce664c
SHA1 fc1e729ff6bf2a4e8a474526629f0273600e4cc7
SHA256 b16161ead045dcea22af9ba8f61bb3803df87092c749a714d18ca1036be81b09
SHA512 0d507b1db51f5360c6d5f77129d2b6ce459261b4c3b92198c5f7a9a2cdb3ae2ccd7b0ba6729c1542ac6435d5ebb336d144e136af64e6f1780e12288480671f8b

memory/4368-146-0x0000000000000000-mapping.dmp

C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe

MD5 750c5df3ef704bd72b5b7e7051ce664c
SHA1 fc1e729ff6bf2a4e8a474526629f0273600e4cc7
SHA256 b16161ead045dcea22af9ba8f61bb3803df87092c749a714d18ca1036be81b09
SHA512 0d507b1db51f5360c6d5f77129d2b6ce459261b4c3b92198c5f7a9a2cdb3ae2ccd7b0ba6729c1542ac6435d5ebb336d144e136af64e6f1780e12288480671f8b

memory/2884-151-0x0000000000000000-mapping.dmp

C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe

MD5 750c5df3ef704bd72b5b7e7051ce664c
SHA1 fc1e729ff6bf2a4e8a474526629f0273600e4cc7
SHA256 b16161ead045dcea22af9ba8f61bb3803df87092c749a714d18ca1036be81b09
SHA512 0d507b1db51f5360c6d5f77129d2b6ce459261b4c3b92198c5f7a9a2cdb3ae2ccd7b0ba6729c1542ac6435d5ebb336d144e136af64e6f1780e12288480671f8b

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\oobeldr.exe.log

MD5 03d2df1e8834bc4ec1756735429b458c
SHA1 4ee6c0f5b04c8e0c5076219c5724032daab11d40
SHA256 745ab70552d9a0463b791fd8dc1942838ac3e34fb1a68f09ed3766c7e3b05631
SHA512 2482c3d4478125ccbc7f224f50e86b7bf925ed438b59f4dce57b9b6bcdb59df51417049096b131b6b911173550eed98bc92aba7050861de303a692f0681b197b

memory/3008-154-0x0000000000000000-mapping.dmp

C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe

MD5 750c5df3ef704bd72b5b7e7051ce664c
SHA1 fc1e729ff6bf2a4e8a474526629f0273600e4cc7
SHA256 b16161ead045dcea22af9ba8f61bb3803df87092c749a714d18ca1036be81b09
SHA512 0d507b1db51f5360c6d5f77129d2b6ce459261b4c3b92198c5f7a9a2cdb3ae2ccd7b0ba6729c1542ac6435d5ebb336d144e136af64e6f1780e12288480671f8b