Malware Analysis Report

2025-08-10 23:16

Sample ID 221101-nstnjacdhr
Target 5a146fc488834260af6cc75f456c0071d91c0c56fcf8235a7d6e0a277d8071ff
SHA256 5a146fc488834260af6cc75f456c0071d91c0c56fcf8235a7d6e0a277d8071ff
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

5a146fc488834260af6cc75f456c0071d91c0c56fcf8235a7d6e0a277d8071ff

Threat Level: Likely malicious

The file 5a146fc488834260af6cc75f456c0071d91c0c56fcf8235a7d6e0a277d8071ff 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 11:40

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2022-11-01 11:40

Reported

2022-11-01 11:42

Platform

win10v2004-20220901-en

Max time kernel

143s

Max time network

147s

Command Line

"C:\Users\Admin\AppData\Local\Temp\5a146fc488834260af6cc75f456c0071d91c0c56fcf8235a7d6e0a277d8071ff.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 3592 wrote to memory of 1116 N/A C:\Users\Admin\AppData\Local\Temp\5a146fc488834260af6cc75f456c0071d91c0c56fcf8235a7d6e0a277d8071ff.exe C:\Users\Admin\AppData\Local\Temp\5a146fc488834260af6cc75f456c0071d91c0c56fcf8235a7d6e0a277d8071ff.exe
PID 3592 wrote to memory of 1116 N/A C:\Users\Admin\AppData\Local\Temp\5a146fc488834260af6cc75f456c0071d91c0c56fcf8235a7d6e0a277d8071ff.exe C:\Users\Admin\AppData\Local\Temp\5a146fc488834260af6cc75f456c0071d91c0c56fcf8235a7d6e0a277d8071ff.exe
PID 3592 wrote to memory of 1116 N/A C:\Users\Admin\AppData\Local\Temp\5a146fc488834260af6cc75f456c0071d91c0c56fcf8235a7d6e0a277d8071ff.exe C:\Users\Admin\AppData\Local\Temp\5a146fc488834260af6cc75f456c0071d91c0c56fcf8235a7d6e0a277d8071ff.exe
PID 3592 wrote to memory of 1116 N/A C:\Users\Admin\AppData\Local\Temp\5a146fc488834260af6cc75f456c0071d91c0c56fcf8235a7d6e0a277d8071ff.exe C:\Users\Admin\AppData\Local\Temp\5a146fc488834260af6cc75f456c0071d91c0c56fcf8235a7d6e0a277d8071ff.exe
PID 3592 wrote to memory of 1116 N/A C:\Users\Admin\AppData\Local\Temp\5a146fc488834260af6cc75f456c0071d91c0c56fcf8235a7d6e0a277d8071ff.exe C:\Users\Admin\AppData\Local\Temp\5a146fc488834260af6cc75f456c0071d91c0c56fcf8235a7d6e0a277d8071ff.exe
PID 3592 wrote to memory of 1116 N/A C:\Users\Admin\AppData\Local\Temp\5a146fc488834260af6cc75f456c0071d91c0c56fcf8235a7d6e0a277d8071ff.exe C:\Users\Admin\AppData\Local\Temp\5a146fc488834260af6cc75f456c0071d91c0c56fcf8235a7d6e0a277d8071ff.exe
PID 3592 wrote to memory of 1116 N/A C:\Users\Admin\AppData\Local\Temp\5a146fc488834260af6cc75f456c0071d91c0c56fcf8235a7d6e0a277d8071ff.exe C:\Users\Admin\AppData\Local\Temp\5a146fc488834260af6cc75f456c0071d91c0c56fcf8235a7d6e0a277d8071ff.exe
PID 3592 wrote to memory of 1116 N/A C:\Users\Admin\AppData\Local\Temp\5a146fc488834260af6cc75f456c0071d91c0c56fcf8235a7d6e0a277d8071ff.exe C:\Users\Admin\AppData\Local\Temp\5a146fc488834260af6cc75f456c0071d91c0c56fcf8235a7d6e0a277d8071ff.exe
PID 3592 wrote to memory of 1116 N/A C:\Users\Admin\AppData\Local\Temp\5a146fc488834260af6cc75f456c0071d91c0c56fcf8235a7d6e0a277d8071ff.exe C:\Users\Admin\AppData\Local\Temp\5a146fc488834260af6cc75f456c0071d91c0c56fcf8235a7d6e0a277d8071ff.exe
PID 1116 wrote to memory of 3536 N/A C:\Users\Admin\AppData\Local\Temp\5a146fc488834260af6cc75f456c0071d91c0c56fcf8235a7d6e0a277d8071ff.exe C:\Windows\SysWOW64\schtasks.exe
PID 1116 wrote to memory of 3536 N/A C:\Users\Admin\AppData\Local\Temp\5a146fc488834260af6cc75f456c0071d91c0c56fcf8235a7d6e0a277d8071ff.exe C:\Windows\SysWOW64\schtasks.exe
PID 1116 wrote to memory of 3536 N/A C:\Users\Admin\AppData\Local\Temp\5a146fc488834260af6cc75f456c0071d91c0c56fcf8235a7d6e0a277d8071ff.exe C:\Windows\SysWOW64\schtasks.exe
PID 1828 wrote to memory of 4260 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 1828 wrote to memory of 4260 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 1828 wrote to memory of 4260 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 1828 wrote to memory of 4260 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 1828 wrote to memory of 4260 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 1828 wrote to memory of 4260 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 1828 wrote to memory of 4260 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 1828 wrote to memory of 4260 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 1828 wrote to memory of 4260 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 4260 wrote to memory of 968 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Windows\SysWOW64\schtasks.exe
PID 4260 wrote to memory of 968 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Windows\SysWOW64\schtasks.exe
PID 4260 wrote to memory of 968 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Windows\SysWOW64\schtasks.exe
PID 380 wrote to memory of 1884 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 380 wrote to memory of 1884 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 380 wrote to memory of 1884 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 380 wrote to memory of 1884 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 380 wrote to memory of 1884 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 380 wrote to memory of 1884 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 380 wrote to memory of 1884 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 380 wrote to memory of 1884 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 380 wrote to memory of 1884 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\5a146fc488834260af6cc75f456c0071d91c0c56fcf8235a7d6e0a277d8071ff.exe

"C:\Users\Admin\AppData\Local\Temp\5a146fc488834260af6cc75f456c0071d91c0c56fcf8235a7d6e0a277d8071ff.exe"

C:\Users\Admin\AppData\Local\Temp\5a146fc488834260af6cc75f456c0071d91c0c56fcf8235a7d6e0a277d8071ff.exe

C:\Users\Admin\AppData\Local\Temp\5a146fc488834260af6cc75f456c0071d91c0c56fcf8235a7d6e0a277d8071ff.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:\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 52.182.141.63:443 tcp
FR 2.18.109.224:443 tcp
US 93.184.221.240:80 tcp
US 93.184.221.240:80 tcp
US 93.184.221.240:80 tcp
US 93.184.221.240:80 tcp

Files

memory/3592-132-0x00000000004C0000-0x0000000000516000-memory.dmp

memory/3592-133-0x00000000079F0000-0x0000000007F94000-memory.dmp

memory/3592-134-0x00000000074E0000-0x0000000007572000-memory.dmp

memory/3592-135-0x0000000007780000-0x00000000077F6000-memory.dmp

memory/3592-136-0x0000000007460000-0x000000000747E000-memory.dmp

memory/1116-137-0x0000000000000000-mapping.dmp

memory/1116-138-0x0000000000400000-0x0000000000406000-memory.dmp

memory/1116-140-0x0000000000400000-0x0000000000406000-memory.dmp

memory/3536-141-0x0000000000000000-mapping.dmp

memory/1116-142-0x0000000000400000-0x0000000000406000-memory.dmp

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

MD5 59a084c67dd667353d3201076c1f1908
SHA1 772d7c6c6de73f00323ae7c832109d1db44ba72d
SHA256 5a146fc488834260af6cc75f456c0071d91c0c56fcf8235a7d6e0a277d8071ff
SHA512 f39d9c56f663ce71809eb42dba4a1051bfac29efbdacde73596982dade7b39235f02835932e490bf003534eeb04de316b318d3cdfcc23b4facc833d58d5737ec

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

MD5 59a084c67dd667353d3201076c1f1908
SHA1 772d7c6c6de73f00323ae7c832109d1db44ba72d
SHA256 5a146fc488834260af6cc75f456c0071d91c0c56fcf8235a7d6e0a277d8071ff
SHA512 f39d9c56f663ce71809eb42dba4a1051bfac29efbdacde73596982dade7b39235f02835932e490bf003534eeb04de316b318d3cdfcc23b4facc833d58d5737ec

memory/4260-145-0x0000000000000000-mapping.dmp

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

MD5 59a084c67dd667353d3201076c1f1908
SHA1 772d7c6c6de73f00323ae7c832109d1db44ba72d
SHA256 5a146fc488834260af6cc75f456c0071d91c0c56fcf8235a7d6e0a277d8071ff
SHA512 f39d9c56f663ce71809eb42dba4a1051bfac29efbdacde73596982dade7b39235f02835932e490bf003534eeb04de316b318d3cdfcc23b4facc833d58d5737ec

memory/968-150-0x0000000000000000-mapping.dmp

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

MD5 59a084c67dd667353d3201076c1f1908
SHA1 772d7c6c6de73f00323ae7c832109d1db44ba72d
SHA256 5a146fc488834260af6cc75f456c0071d91c0c56fcf8235a7d6e0a277d8071ff
SHA512 f39d9c56f663ce71809eb42dba4a1051bfac29efbdacde73596982dade7b39235f02835932e490bf003534eeb04de316b318d3cdfcc23b4facc833d58d5737ec

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

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

memory/1884-153-0x0000000000000000-mapping.dmp

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

MD5 59a084c67dd667353d3201076c1f1908
SHA1 772d7c6c6de73f00323ae7c832109d1db44ba72d
SHA256 5a146fc488834260af6cc75f456c0071d91c0c56fcf8235a7d6e0a277d8071ff
SHA512 f39d9c56f663ce71809eb42dba4a1051bfac29efbdacde73596982dade7b39235f02835932e490bf003534eeb04de316b318d3cdfcc23b4facc833d58d5737ec