Malware Analysis Report

2024-11-13 18:50

Sample ID 240713-22txjszhkk
Target ups.exe
SHA256 f2255d65b2f7193ad81bc5d874a17953f6acf9469613adc109f947745a8f39b5
Tags
upx remcos oops rat
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral3

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral4

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

f2255d65b2f7193ad81bc5d874a17953f6acf9469613adc109f947745a8f39b5

Threat Level: Known bad

The file ups.exe was found to be: Known bad.

Malicious Activity Summary

upx remcos oops rat

Remcos family

Remcos

UPX packed file

Unsigned PE

Program crash

Suspicious use of WriteProcessMemory

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-07-13 23:05

Signatures

Remcos family

remcos

UPX packed file

upx
Description Indicator Process Target
N/A N/A N/A N/A

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-13 23:05

Reported

2024-07-13 23:08

Platform

win7-20240705-en

Max time kernel

147s

Max time network

142s

Command Line

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

Signatures

Remcos

rat remcos

UPX packed file

upx
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\ups.exe N/A

Suspicious use of SendNotifyMessage

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\ups.exe N/A

Processes

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

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

Network

Country Destination Domain Proto
N/A 192.168.1.94:2404 tcp
N/A 192.168.1.94:2404 tcp
N/A 192.168.1.94:2404 tcp
N/A 192.168.1.94:2404 tcp
N/A 192.168.1.94:2404 tcp
N/A 192.168.1.94:2404 tcp
N/A 192.168.1.94:2404 tcp

Files

memory/2764-0-0x0000000000400000-0x000000000047D000-memory.dmp

memory/2764-1-0x0000000000400000-0x000000000047D000-memory.dmp

memory/2764-2-0x0000000000400000-0x000000000047D000-memory.dmp

memory/2764-3-0x0000000000400000-0x000000000047D000-memory.dmp

memory/2764-4-0x0000000000400000-0x000000000047D000-memory.dmp

memory/2764-5-0x0000000000400000-0x000000000047D000-memory.dmp

memory/2764-6-0x0000000000400000-0x000000000047D000-memory.dmp

memory/2764-7-0x0000000000400000-0x000000000047D000-memory.dmp

memory/2764-8-0x0000000000400000-0x000000000047D000-memory.dmp

memory/2764-9-0x0000000000400000-0x000000000047D000-memory.dmp

memory/2764-10-0x0000000000400000-0x000000000047D000-memory.dmp

memory/2764-11-0x0000000000400000-0x000000000047D000-memory.dmp

memory/2764-12-0x0000000000400000-0x000000000047D000-memory.dmp

memory/2764-13-0x0000000000400000-0x000000000047D000-memory.dmp

memory/2764-14-0x0000000000400000-0x000000000047D000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-13 23:05

Reported

2024-07-13 23:08

Platform

win10v2004-20240709-en

Max time kernel

148s

Max time network

148s

Command Line

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

Signatures

Remcos

rat remcos

UPX packed file

upx
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\ups.exe N/A

Suspicious use of SendNotifyMessage

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\ups.exe N/A

Processes

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

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

Network

Country Destination Domain Proto
N/A 192.168.1.94:2404 tcp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp
US 8.8.8.8:53 2.159.190.20.in-addr.arpa udp
N/A 192.168.1.94:2404 tcp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 65.139.73.23.in-addr.arpa udp
N/A 192.168.1.94:2404 tcp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
N/A 192.168.1.94:2404 tcp
N/A 192.168.1.94:2404 tcp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
N/A 192.168.1.94:2404 tcp
N/A 192.168.1.94:2404 tcp

Files

memory/5068-0-0x0000000000400000-0x000000000047D000-memory.dmp

memory/5068-1-0x0000000000400000-0x000000000047D000-memory.dmp

memory/5068-2-0x0000000000400000-0x000000000047D000-memory.dmp

memory/5068-3-0x0000000000400000-0x000000000047D000-memory.dmp

memory/5068-4-0x0000000000400000-0x000000000047D000-memory.dmp

memory/5068-5-0x0000000000400000-0x000000000047D000-memory.dmp

memory/5068-6-0x0000000000400000-0x000000000047D000-memory.dmp

memory/5068-7-0x0000000000400000-0x000000000047D000-memory.dmp

memory/5068-8-0x0000000000400000-0x000000000047D000-memory.dmp

memory/5068-9-0x0000000000400000-0x000000000047D000-memory.dmp

memory/5068-10-0x0000000000400000-0x000000000047D000-memory.dmp

memory/5068-11-0x0000000000400000-0x000000000047D000-memory.dmp

memory/5068-12-0x0000000000400000-0x000000000047D000-memory.dmp

memory/5068-13-0x0000000000400000-0x000000000047D000-memory.dmp

memory/5068-14-0x0000000000400000-0x000000000047D000-memory.dmp

Analysis: behavioral3

Detonation Overview

Submitted

2024-07-13 23:05

Reported

2024-07-13 23:08

Platform

win7-20240704-en

Max time kernel

14s

Max time network

18s

Command Line

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

Signatures

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Users\Admin\AppData\Local\Temp\out.exe

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2452 wrote to memory of 2416 N/A C:\Users\Admin\AppData\Local\Temp\out.exe C:\Windows\SysWOW64\WerFault.exe
PID 2452 wrote to memory of 2416 N/A C:\Users\Admin\AppData\Local\Temp\out.exe C:\Windows\SysWOW64\WerFault.exe
PID 2452 wrote to memory of 2416 N/A C:\Users\Admin\AppData\Local\Temp\out.exe C:\Windows\SysWOW64\WerFault.exe
PID 2452 wrote to memory of 2416 N/A C:\Users\Admin\AppData\Local\Temp\out.exe C:\Windows\SysWOW64\WerFault.exe

Processes

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

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

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2452 -s 36

Network

N/A

Files

N/A

Analysis: behavioral4

Detonation Overview

Submitted

2024-07-13 23:05

Reported

2024-07-13 23:08

Platform

win10v2004-20240709-en

Max time kernel

150s

Max time network

150s

Command Line

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

Signatures

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Users\Admin\AppData\Local\Temp\out.exe

Processes

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

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

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 5052 -ip 5052

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 5052 -s 224

Network

Country Destination Domain Proto
US 8.8.8.8:53 20.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 udp

Files

N/A