Malware Analysis Report

2025-08-10 23:17

Sample ID 221101-nrkz1acdgp
Target 0f03d9f1821bc27e8d067dbd6b7433be7582024d0e4d2228d4c186ce756d1ec1
SHA256 0f03d9f1821bc27e8d067dbd6b7433be7582024d0e4d2228d4c186ce756d1ec1
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

0f03d9f1821bc27e8d067dbd6b7433be7582024d0e4d2228d4c186ce756d1ec1

Threat Level: Likely malicious

The file 0f03d9f1821bc27e8d067dbd6b7433be7582024d0e4d2228d4c186ce756d1ec1 was found to be: Likely malicious.

Malicious Activity Summary


Executes dropped EXE

Suspicious use of SetThreadContext

Program crash

Creates scheduled task(s)

Suspicious use of UnmapMainImage

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-11-01 11:37

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2022-11-01 11:37

Reported

2022-11-01 11:40

Platform

win10v2004-20220812-en

Max time kernel

130s

Max time network

141s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0f03d9f1821bc27e8d067dbd6b7433be7582024d0e4d2228d4c186ce756d1ec1.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 UnmapMainImage

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1976 wrote to memory of 4372 N/A C:\Users\Admin\AppData\Local\Temp\0f03d9f1821bc27e8d067dbd6b7433be7582024d0e4d2228d4c186ce756d1ec1.exe C:\Users\Admin\AppData\Local\Temp\0f03d9f1821bc27e8d067dbd6b7433be7582024d0e4d2228d4c186ce756d1ec1.exe
PID 1976 wrote to memory of 4372 N/A C:\Users\Admin\AppData\Local\Temp\0f03d9f1821bc27e8d067dbd6b7433be7582024d0e4d2228d4c186ce756d1ec1.exe C:\Users\Admin\AppData\Local\Temp\0f03d9f1821bc27e8d067dbd6b7433be7582024d0e4d2228d4c186ce756d1ec1.exe
PID 1976 wrote to memory of 4372 N/A C:\Users\Admin\AppData\Local\Temp\0f03d9f1821bc27e8d067dbd6b7433be7582024d0e4d2228d4c186ce756d1ec1.exe C:\Users\Admin\AppData\Local\Temp\0f03d9f1821bc27e8d067dbd6b7433be7582024d0e4d2228d4c186ce756d1ec1.exe
PID 1976 wrote to memory of 4372 N/A C:\Users\Admin\AppData\Local\Temp\0f03d9f1821bc27e8d067dbd6b7433be7582024d0e4d2228d4c186ce756d1ec1.exe C:\Users\Admin\AppData\Local\Temp\0f03d9f1821bc27e8d067dbd6b7433be7582024d0e4d2228d4c186ce756d1ec1.exe
PID 1976 wrote to memory of 4372 N/A C:\Users\Admin\AppData\Local\Temp\0f03d9f1821bc27e8d067dbd6b7433be7582024d0e4d2228d4c186ce756d1ec1.exe C:\Users\Admin\AppData\Local\Temp\0f03d9f1821bc27e8d067dbd6b7433be7582024d0e4d2228d4c186ce756d1ec1.exe
PID 1976 wrote to memory of 4372 N/A C:\Users\Admin\AppData\Local\Temp\0f03d9f1821bc27e8d067dbd6b7433be7582024d0e4d2228d4c186ce756d1ec1.exe C:\Users\Admin\AppData\Local\Temp\0f03d9f1821bc27e8d067dbd6b7433be7582024d0e4d2228d4c186ce756d1ec1.exe
PID 1976 wrote to memory of 4372 N/A C:\Users\Admin\AppData\Local\Temp\0f03d9f1821bc27e8d067dbd6b7433be7582024d0e4d2228d4c186ce756d1ec1.exe C:\Users\Admin\AppData\Local\Temp\0f03d9f1821bc27e8d067dbd6b7433be7582024d0e4d2228d4c186ce756d1ec1.exe
PID 1976 wrote to memory of 4372 N/A C:\Users\Admin\AppData\Local\Temp\0f03d9f1821bc27e8d067dbd6b7433be7582024d0e4d2228d4c186ce756d1ec1.exe C:\Users\Admin\AppData\Local\Temp\0f03d9f1821bc27e8d067dbd6b7433be7582024d0e4d2228d4c186ce756d1ec1.exe
PID 1976 wrote to memory of 4372 N/A C:\Users\Admin\AppData\Local\Temp\0f03d9f1821bc27e8d067dbd6b7433be7582024d0e4d2228d4c186ce756d1ec1.exe C:\Users\Admin\AppData\Local\Temp\0f03d9f1821bc27e8d067dbd6b7433be7582024d0e4d2228d4c186ce756d1ec1.exe
PID 4372 wrote to memory of 1124 N/A C:\Users\Admin\AppData\Local\Temp\0f03d9f1821bc27e8d067dbd6b7433be7582024d0e4d2228d4c186ce756d1ec1.exe C:\Windows\SysWOW64\schtasks.exe
PID 4372 wrote to memory of 1124 N/A C:\Users\Admin\AppData\Local\Temp\0f03d9f1821bc27e8d067dbd6b7433be7582024d0e4d2228d4c186ce756d1ec1.exe C:\Windows\SysWOW64\schtasks.exe
PID 4372 wrote to memory of 1124 N/A C:\Users\Admin\AppData\Local\Temp\0f03d9f1821bc27e8d067dbd6b7433be7582024d0e4d2228d4c186ce756d1ec1.exe C:\Windows\SysWOW64\schtasks.exe
PID 4976 wrote to memory of 4596 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 4976 wrote to memory of 4596 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 4976 wrote to memory of 4596 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 4976 wrote to memory of 4596 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 4976 wrote to memory of 4596 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 4976 wrote to memory of 4596 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 4976 wrote to memory of 4596 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 4976 wrote to memory of 4596 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 4976 wrote to memory of 4596 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 4836 wrote to memory of 4520 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 4836 wrote to memory of 4520 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 4836 wrote to memory of 4520 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 4836 wrote to memory of 4520 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 4836 wrote to memory of 4520 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 4836 wrote to memory of 4520 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 4836 wrote to memory of 4520 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 4836 wrote to memory of 4520 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 4836 wrote to memory of 4520 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 4520 wrote to memory of 2380 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Windows\SysWOW64\schtasks.exe
PID 4520 wrote to memory of 2380 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Windows\SysWOW64\schtasks.exe
PID 4520 wrote to memory of 2380 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Windows\SysWOW64\schtasks.exe

Processes

C:\Users\Admin\AppData\Local\Temp\0f03d9f1821bc27e8d067dbd6b7433be7582024d0e4d2228d4c186ce756d1ec1.exe

"C:\Users\Admin\AppData\Local\Temp\0f03d9f1821bc27e8d067dbd6b7433be7582024d0e4d2228d4c186ce756d1ec1.exe"

C:\Users\Admin\AppData\Local\Temp\0f03d9f1821bc27e8d067dbd6b7433be7582024d0e4d2228d4c186ce756d1ec1.exe

C:\Users\Admin\AppData\Local\Temp\0f03d9f1821bc27e8d067dbd6b7433be7582024d0e4d2228d4c186ce756d1ec1.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\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 208 -p 4596 -ip 4596

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4596 -s 12

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"

Network

Country Destination Domain Proto
US 13.89.179.8:443 tcp
NL 87.248.202.1:80 tcp

Files

memory/1976-132-0x0000000000810000-0x0000000000866000-memory.dmp

memory/1976-133-0x0000000007BD0000-0x0000000008174000-memory.dmp

memory/1976-134-0x00000000076C0000-0x0000000007752000-memory.dmp

memory/1976-135-0x0000000007960000-0x00000000079D6000-memory.dmp

memory/1976-136-0x0000000005200000-0x000000000521E000-memory.dmp

memory/4372-137-0x0000000000000000-mapping.dmp

memory/4372-138-0x0000000000400000-0x0000000000406000-memory.dmp

memory/4372-140-0x0000000000400000-0x0000000000406000-memory.dmp

memory/1124-141-0x0000000000000000-mapping.dmp

memory/4372-142-0x0000000000400000-0x0000000000406000-memory.dmp

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

MD5 adf29b7c3d0ac96ccbd3d8b7ff523891
SHA1 b208a8281f3abd2dae156367457a0b04ab22810a
SHA256 0f03d9f1821bc27e8d067dbd6b7433be7582024d0e4d2228d4c186ce756d1ec1
SHA512 62b27e74d7bad1949c1f6804e0cef9b283fe91956e9bef49020481a52d4c88db96bb14045ec1506d975f7c375bfd60f4ec69d528ac134d948e7519de11ead9a1

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

MD5 adf29b7c3d0ac96ccbd3d8b7ff523891
SHA1 b208a8281f3abd2dae156367457a0b04ab22810a
SHA256 0f03d9f1821bc27e8d067dbd6b7433be7582024d0e4d2228d4c186ce756d1ec1
SHA512 62b27e74d7bad1949c1f6804e0cef9b283fe91956e9bef49020481a52d4c88db96bb14045ec1506d975f7c375bfd60f4ec69d528ac134d948e7519de11ead9a1

memory/4596-145-0x0000000000000000-mapping.dmp

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

MD5 adf29b7c3d0ac96ccbd3d8b7ff523891
SHA1 b208a8281f3abd2dae156367457a0b04ab22810a
SHA256 0f03d9f1821bc27e8d067dbd6b7433be7582024d0e4d2228d4c186ce756d1ec1
SHA512 62b27e74d7bad1949c1f6804e0cef9b283fe91956e9bef49020481a52d4c88db96bb14045ec1506d975f7c375bfd60f4ec69d528ac134d948e7519de11ead9a1

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

MD5 adf29b7c3d0ac96ccbd3d8b7ff523891
SHA1 b208a8281f3abd2dae156367457a0b04ab22810a
SHA256 0f03d9f1821bc27e8d067dbd6b7433be7582024d0e4d2228d4c186ce756d1ec1
SHA512 62b27e74d7bad1949c1f6804e0cef9b283fe91956e9bef49020481a52d4c88db96bb14045ec1506d975f7c375bfd60f4ec69d528ac134d948e7519de11ead9a1

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

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

memory/4520-150-0x0000000000000000-mapping.dmp

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

MD5 adf29b7c3d0ac96ccbd3d8b7ff523891
SHA1 b208a8281f3abd2dae156367457a0b04ab22810a
SHA256 0f03d9f1821bc27e8d067dbd6b7433be7582024d0e4d2228d4c186ce756d1ec1
SHA512 62b27e74d7bad1949c1f6804e0cef9b283fe91956e9bef49020481a52d4c88db96bb14045ec1506d975f7c375bfd60f4ec69d528ac134d948e7519de11ead9a1

memory/2380-155-0x0000000000000000-mapping.dmp