Malware Analysis Report

2025-08-05 17:33

Sample ID 221101-mmkyrsbhbp
Target 899c569df9792436429c78b5d96e274f4f64cde8764a4cf123af1ecb58477fbc
SHA256 899c569df9792436429c78b5d96e274f4f64cde8764a4cf123af1ecb58477fbc
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

899c569df9792436429c78b5d96e274f4f64cde8764a4cf123af1ecb58477fbc

Threat Level: Likely malicious

The file 899c569df9792436429c78b5d96e274f4f64cde8764a4cf123af1ecb58477fbc 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 10:34

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2022-11-01 10:34

Reported

2022-11-01 10:37

Platform

win10-20220812-en

Max time kernel

144s

Max time network

147s

Command Line

"C:\Users\Admin\AppData\Local\Temp\899c569df9792436429c78b5d96e274f4f64cde8764a4cf123af1ecb58477fbc.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 2660 wrote to memory of 4724 N/A C:\Users\Admin\AppData\Local\Temp\899c569df9792436429c78b5d96e274f4f64cde8764a4cf123af1ecb58477fbc.exe C:\Users\Admin\AppData\Local\Temp\899c569df9792436429c78b5d96e274f4f64cde8764a4cf123af1ecb58477fbc.exe
PID 2660 wrote to memory of 4724 N/A C:\Users\Admin\AppData\Local\Temp\899c569df9792436429c78b5d96e274f4f64cde8764a4cf123af1ecb58477fbc.exe C:\Users\Admin\AppData\Local\Temp\899c569df9792436429c78b5d96e274f4f64cde8764a4cf123af1ecb58477fbc.exe
PID 2660 wrote to memory of 4724 N/A C:\Users\Admin\AppData\Local\Temp\899c569df9792436429c78b5d96e274f4f64cde8764a4cf123af1ecb58477fbc.exe C:\Users\Admin\AppData\Local\Temp\899c569df9792436429c78b5d96e274f4f64cde8764a4cf123af1ecb58477fbc.exe
PID 2660 wrote to memory of 4724 N/A C:\Users\Admin\AppData\Local\Temp\899c569df9792436429c78b5d96e274f4f64cde8764a4cf123af1ecb58477fbc.exe C:\Users\Admin\AppData\Local\Temp\899c569df9792436429c78b5d96e274f4f64cde8764a4cf123af1ecb58477fbc.exe
PID 2660 wrote to memory of 4724 N/A C:\Users\Admin\AppData\Local\Temp\899c569df9792436429c78b5d96e274f4f64cde8764a4cf123af1ecb58477fbc.exe C:\Users\Admin\AppData\Local\Temp\899c569df9792436429c78b5d96e274f4f64cde8764a4cf123af1ecb58477fbc.exe
PID 2660 wrote to memory of 4724 N/A C:\Users\Admin\AppData\Local\Temp\899c569df9792436429c78b5d96e274f4f64cde8764a4cf123af1ecb58477fbc.exe C:\Users\Admin\AppData\Local\Temp\899c569df9792436429c78b5d96e274f4f64cde8764a4cf123af1ecb58477fbc.exe
PID 2660 wrote to memory of 4724 N/A C:\Users\Admin\AppData\Local\Temp\899c569df9792436429c78b5d96e274f4f64cde8764a4cf123af1ecb58477fbc.exe C:\Users\Admin\AppData\Local\Temp\899c569df9792436429c78b5d96e274f4f64cde8764a4cf123af1ecb58477fbc.exe
PID 2660 wrote to memory of 4724 N/A C:\Users\Admin\AppData\Local\Temp\899c569df9792436429c78b5d96e274f4f64cde8764a4cf123af1ecb58477fbc.exe C:\Users\Admin\AppData\Local\Temp\899c569df9792436429c78b5d96e274f4f64cde8764a4cf123af1ecb58477fbc.exe
PID 2660 wrote to memory of 4724 N/A C:\Users\Admin\AppData\Local\Temp\899c569df9792436429c78b5d96e274f4f64cde8764a4cf123af1ecb58477fbc.exe C:\Users\Admin\AppData\Local\Temp\899c569df9792436429c78b5d96e274f4f64cde8764a4cf123af1ecb58477fbc.exe
PID 4724 wrote to memory of 4080 N/A C:\Users\Admin\AppData\Local\Temp\899c569df9792436429c78b5d96e274f4f64cde8764a4cf123af1ecb58477fbc.exe C:\Windows\SysWOW64\schtasks.exe
PID 4724 wrote to memory of 4080 N/A C:\Users\Admin\AppData\Local\Temp\899c569df9792436429c78b5d96e274f4f64cde8764a4cf123af1ecb58477fbc.exe C:\Windows\SysWOW64\schtasks.exe
PID 4724 wrote to memory of 4080 N/A C:\Users\Admin\AppData\Local\Temp\899c569df9792436429c78b5d96e274f4f64cde8764a4cf123af1ecb58477fbc.exe C:\Windows\SysWOW64\schtasks.exe
PID 4784 wrote to memory of 4228 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 4784 wrote to memory of 4228 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 4784 wrote to memory of 4228 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 4784 wrote to memory of 4228 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 4784 wrote to memory of 4228 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 4784 wrote to memory of 4228 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 4784 wrote to memory of 4228 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 4784 wrote to memory of 4228 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 4784 wrote to memory of 4228 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 4228 wrote to memory of 4516 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Windows\SysWOW64\schtasks.exe
PID 4228 wrote to memory of 4516 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Windows\SysWOW64\schtasks.exe
PID 4228 wrote to memory of 4516 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Windows\SysWOW64\schtasks.exe
PID 4488 wrote to memory of 696 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 4488 wrote to memory of 696 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 4488 wrote to memory of 696 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 4488 wrote to memory of 696 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 4488 wrote to memory of 696 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 4488 wrote to memory of 696 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 4488 wrote to memory of 696 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 4488 wrote to memory of 696 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
PID 4488 wrote to memory of 696 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\899c569df9792436429c78b5d96e274f4f64cde8764a4cf123af1ecb58477fbc.exe

"C:\Users\Admin\AppData\Local\Temp\899c569df9792436429c78b5d96e274f4f64cde8764a4cf123af1ecb58477fbc.exe"

C:\Users\Admin\AppData\Local\Temp\899c569df9792436429c78b5d96e274f4f64cde8764a4cf123af1ecb58477fbc.exe

C:\Users\Admin\AppData\Local\Temp\899c569df9792436429c78b5d96e274f4f64cde8764a4cf123af1ecb58477fbc.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 52.109.8.45:443 tcp
US 20.189.173.14:443 tcp
US 209.197.3.8:80 tcp

Files

memory/2660-120-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/2660-121-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/2660-123-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/2660-124-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/2660-125-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/2660-127-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/2660-131-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/2660-133-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/2660-134-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/2660-135-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/2660-138-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/2660-139-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/2660-141-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/2660-142-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/2660-140-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/2660-137-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/2660-144-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/2660-143-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/2660-136-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/2660-132-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/2660-145-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/2660-146-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/2660-147-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/2660-148-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/2660-130-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/2660-129-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/2660-149-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/2660-128-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/2660-126-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/2660-122-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/2660-150-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/2660-151-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/2660-119-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/2660-152-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/2660-153-0x0000000000E20000-0x0000000000E76000-memory.dmp

memory/2660-154-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/2660-155-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/2660-157-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/2660-158-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/2660-160-0x0000000007BE0000-0x0000000007CAC000-memory.dmp

memory/2660-159-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/2660-156-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/2660-162-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/2660-161-0x00000000081B0000-0x00000000086AE000-memory.dmp

memory/2660-163-0x0000000007D50000-0x0000000007DE2000-memory.dmp

memory/2660-164-0x0000000003320000-0x0000000003326000-memory.dmp

memory/2660-165-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/2660-166-0x0000000007FF0000-0x0000000008066000-memory.dmp

memory/2660-167-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/2660-169-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/2660-168-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/2660-170-0x00000000057C0000-0x00000000057DE000-memory.dmp

memory/2660-173-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/2660-172-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/2660-175-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/2660-176-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/2660-174-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/2660-171-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/4724-178-0x0000000000402354-mapping.dmp

memory/4724-180-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/4724-183-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/4724-186-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/4724-190-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/4724-189-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/4724-188-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/4724-187-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/4724-185-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/4724-181-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/4080-212-0x0000000000000000-mapping.dmp

memory/2660-182-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/4724-179-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

memory/4724-177-0x0000000000400000-0x0000000000406000-memory.dmp

memory/4724-230-0x0000000000400000-0x0000000000406000-memory.dmp

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

MD5 5ae5c015cbf13ee10eb95a3c1b2a37df
SHA1 ada2a4f3018864496426ad1ef81c4bc0726ba3b7
SHA256 899c569df9792436429c78b5d96e274f4f64cde8764a4cf123af1ecb58477fbc
SHA512 27d8cbd9fa2d8f435cadc3e4c8b3faa541422bfeaeb7bbe81d9cf1db7415434032783ea3e0061c6ae07fb9f3b21a5afbf19cd2daf363f79706d9ce0c16ac9134

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

MD5 5ae5c015cbf13ee10eb95a3c1b2a37df
SHA1 ada2a4f3018864496426ad1ef81c4bc0726ba3b7
SHA256 899c569df9792436429c78b5d96e274f4f64cde8764a4cf123af1ecb58477fbc
SHA512 27d8cbd9fa2d8f435cadc3e4c8b3faa541422bfeaeb7bbe81d9cf1db7415434032783ea3e0061c6ae07fb9f3b21a5afbf19cd2daf363f79706d9ce0c16ac9134

memory/4228-288-0x0000000000402354-mapping.dmp

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

MD5 5ae5c015cbf13ee10eb95a3c1b2a37df
SHA1 ada2a4f3018864496426ad1ef81c4bc0726ba3b7
SHA256 899c569df9792436429c78b5d96e274f4f64cde8764a4cf123af1ecb58477fbc
SHA512 27d8cbd9fa2d8f435cadc3e4c8b3faa541422bfeaeb7bbe81d9cf1db7415434032783ea3e0061c6ae07fb9f3b21a5afbf19cd2daf363f79706d9ce0c16ac9134

memory/4516-322-0x0000000000000000-mapping.dmp

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

MD5 5ae5c015cbf13ee10eb95a3c1b2a37df
SHA1 ada2a4f3018864496426ad1ef81c4bc0726ba3b7
SHA256 899c569df9792436429c78b5d96e274f4f64cde8764a4cf123af1ecb58477fbc
SHA512 27d8cbd9fa2d8f435cadc3e4c8b3faa541422bfeaeb7bbe81d9cf1db7415434032783ea3e0061c6ae07fb9f3b21a5afbf19cd2daf363f79706d9ce0c16ac9134

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

MD5 db5ef8d7c51bad129d9097bf953e4913
SHA1 8439db960aa2d431bf5ec3c37af775b45eb07e06
SHA256 1248e67f10b47b397af3c8cbe342bad4be75c68b8e10f4ec6341195cc3138bd9
SHA512 04572485790b25e1751347e43b47174051cd153dd75fd55ee5590d25a2579f344cd96cf86cf45bdb7759e3e6d0f734d0ff717148ca70f501b9869e964e036fee

memory/696-395-0x0000000000402354-mapping.dmp

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

MD5 5ae5c015cbf13ee10eb95a3c1b2a37df
SHA1 ada2a4f3018864496426ad1ef81c4bc0726ba3b7
SHA256 899c569df9792436429c78b5d96e274f4f64cde8764a4cf123af1ecb58477fbc
SHA512 27d8cbd9fa2d8f435cadc3e4c8b3faa541422bfeaeb7bbe81d9cf1db7415434032783ea3e0061c6ae07fb9f3b21a5afbf19cd2daf363f79706d9ce0c16ac9134