Malware Analysis Report

2024-11-13 18:48

Sample ID 240725-t7smnsvgkc
Target 1b754a8b7d0c1d3be17f751d327b38961c3d6ea3b8769c9c8edb1f318dfd0787.exe
SHA256 1b754a8b7d0c1d3be17f751d327b38961c3d6ea3b8769c9c8edb1f318dfd0787
Tags
discovery remcos remotehost persistence rat
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

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 Overview

score
10/10

SHA256

1b754a8b7d0c1d3be17f751d327b38961c3d6ea3b8769c9c8edb1f318dfd0787

Threat Level: Known bad

The file 1b754a8b7d0c1d3be17f751d327b38961c3d6ea3b8769c9c8edb1f318dfd0787.exe was found to be: Known bad.

Malicious Activity Summary

discovery remcos remotehost persistence rat

Remcos

Checks computer location settings

Executes dropped EXE

Adds Run key to start application

Suspicious use of SetThreadContext

System Location Discovery: System Language Discovery

Enumerates physical storage devices

Unsigned PE

Program crash

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-07-25 16:42

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-25 16:42

Reported

2024-07-25 16:44

Platform

win7-20240708-en

Max time kernel

122s

Max time network

126s

Command Line

"C:\Users\Admin\AppData\Local\Temp\1b754a8b7d0c1d3be17f751d327b38961c3d6ea3b8769c9c8edb1f318dfd0787.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\1b754a8b7d0c1d3be17f751d327b38961c3d6ea3b8769c9c8edb1f318dfd0787.exe

"C:\Users\Admin\AppData\Local\Temp\1b754a8b7d0c1d3be17f751d327b38961c3d6ea3b8769c9c8edb1f318dfd0787.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1344 -s 836

Network

N/A

Files

memory/1344-0-0x0000000074B9E000-0x0000000074B9F000-memory.dmp

memory/1344-1-0x0000000000A50000-0x0000000000B5A000-memory.dmp

memory/1344-2-0x0000000074B90000-0x000000007527E000-memory.dmp

memory/1344-3-0x0000000001F60000-0x0000000001F7A000-memory.dmp

memory/1344-4-0x0000000004130000-0x000000000413E000-memory.dmp

memory/1344-5-0x0000000074B9E000-0x0000000074B9F000-memory.dmp

memory/1344-6-0x0000000074B90000-0x000000007527E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-25 16:42

Reported

2024-07-25 16:45

Platform

win10v2004-20240709-en

Max time kernel

147s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\1b754a8b7d0c1d3be17f751d327b38961c3d6ea3b8769c9c8edb1f318dfd0787.exe"

Signatures

Remcos

rat remcos

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-384068567-2943195810-3631207890-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\1b754a8b7d0c1d3be17f751d327b38961c3d6ea3b8769c9c8edb1f318dfd0787.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\ProgramData\Adobe\Adobe.exe N/A
N/A N/A C:\ProgramData\Adobe\Adobe.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Adobe-OTOIRK = "\"C:\\ProgramData\\Adobe\\Adobe.exe\"" C:\Users\Admin\AppData\Local\Temp\1b754a8b7d0c1d3be17f751d327b38961c3d6ea3b8769c9c8edb1f318dfd0787.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-384068567-2943195810-3631207890-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Adobe-OTOIRK = "\"C:\\ProgramData\\Adobe\\Adobe.exe\"" C:\ProgramData\Adobe\Adobe.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Adobe-OTOIRK = "\"C:\\ProgramData\\Adobe\\Adobe.exe\"" C:\ProgramData\Adobe\Adobe.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-384068567-2943195810-3631207890-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Adobe-OTOIRK = "\"C:\\ProgramData\\Adobe\\Adobe.exe\"" C:\Users\Admin\AppData\Local\Temp\1b754a8b7d0c1d3be17f751d327b38961c3d6ea3b8769c9c8edb1f318dfd0787.exe N/A

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\1b754a8b7d0c1d3be17f751d327b38961c3d6ea3b8769c9c8edb1f318dfd0787.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\1b754a8b7d0c1d3be17f751d327b38961c3d6ea3b8769c9c8edb1f318dfd0787.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\ProgramData\Adobe\Adobe.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\ProgramData\Adobe\Adobe.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4584 wrote to memory of 1544 N/A C:\Users\Admin\AppData\Local\Temp\1b754a8b7d0c1d3be17f751d327b38961c3d6ea3b8769c9c8edb1f318dfd0787.exe C:\Users\Admin\AppData\Local\Temp\1b754a8b7d0c1d3be17f751d327b38961c3d6ea3b8769c9c8edb1f318dfd0787.exe
PID 4584 wrote to memory of 1544 N/A C:\Users\Admin\AppData\Local\Temp\1b754a8b7d0c1d3be17f751d327b38961c3d6ea3b8769c9c8edb1f318dfd0787.exe C:\Users\Admin\AppData\Local\Temp\1b754a8b7d0c1d3be17f751d327b38961c3d6ea3b8769c9c8edb1f318dfd0787.exe
PID 4584 wrote to memory of 1544 N/A C:\Users\Admin\AppData\Local\Temp\1b754a8b7d0c1d3be17f751d327b38961c3d6ea3b8769c9c8edb1f318dfd0787.exe C:\Users\Admin\AppData\Local\Temp\1b754a8b7d0c1d3be17f751d327b38961c3d6ea3b8769c9c8edb1f318dfd0787.exe
PID 4584 wrote to memory of 1544 N/A C:\Users\Admin\AppData\Local\Temp\1b754a8b7d0c1d3be17f751d327b38961c3d6ea3b8769c9c8edb1f318dfd0787.exe C:\Users\Admin\AppData\Local\Temp\1b754a8b7d0c1d3be17f751d327b38961c3d6ea3b8769c9c8edb1f318dfd0787.exe
PID 4584 wrote to memory of 1544 N/A C:\Users\Admin\AppData\Local\Temp\1b754a8b7d0c1d3be17f751d327b38961c3d6ea3b8769c9c8edb1f318dfd0787.exe C:\Users\Admin\AppData\Local\Temp\1b754a8b7d0c1d3be17f751d327b38961c3d6ea3b8769c9c8edb1f318dfd0787.exe
PID 4584 wrote to memory of 1544 N/A C:\Users\Admin\AppData\Local\Temp\1b754a8b7d0c1d3be17f751d327b38961c3d6ea3b8769c9c8edb1f318dfd0787.exe C:\Users\Admin\AppData\Local\Temp\1b754a8b7d0c1d3be17f751d327b38961c3d6ea3b8769c9c8edb1f318dfd0787.exe
PID 4584 wrote to memory of 1544 N/A C:\Users\Admin\AppData\Local\Temp\1b754a8b7d0c1d3be17f751d327b38961c3d6ea3b8769c9c8edb1f318dfd0787.exe C:\Users\Admin\AppData\Local\Temp\1b754a8b7d0c1d3be17f751d327b38961c3d6ea3b8769c9c8edb1f318dfd0787.exe
PID 4584 wrote to memory of 1544 N/A C:\Users\Admin\AppData\Local\Temp\1b754a8b7d0c1d3be17f751d327b38961c3d6ea3b8769c9c8edb1f318dfd0787.exe C:\Users\Admin\AppData\Local\Temp\1b754a8b7d0c1d3be17f751d327b38961c3d6ea3b8769c9c8edb1f318dfd0787.exe
PID 4584 wrote to memory of 1544 N/A C:\Users\Admin\AppData\Local\Temp\1b754a8b7d0c1d3be17f751d327b38961c3d6ea3b8769c9c8edb1f318dfd0787.exe C:\Users\Admin\AppData\Local\Temp\1b754a8b7d0c1d3be17f751d327b38961c3d6ea3b8769c9c8edb1f318dfd0787.exe
PID 4584 wrote to memory of 1544 N/A C:\Users\Admin\AppData\Local\Temp\1b754a8b7d0c1d3be17f751d327b38961c3d6ea3b8769c9c8edb1f318dfd0787.exe C:\Users\Admin\AppData\Local\Temp\1b754a8b7d0c1d3be17f751d327b38961c3d6ea3b8769c9c8edb1f318dfd0787.exe
PID 4584 wrote to memory of 1544 N/A C:\Users\Admin\AppData\Local\Temp\1b754a8b7d0c1d3be17f751d327b38961c3d6ea3b8769c9c8edb1f318dfd0787.exe C:\Users\Admin\AppData\Local\Temp\1b754a8b7d0c1d3be17f751d327b38961c3d6ea3b8769c9c8edb1f318dfd0787.exe
PID 4584 wrote to memory of 1544 N/A C:\Users\Admin\AppData\Local\Temp\1b754a8b7d0c1d3be17f751d327b38961c3d6ea3b8769c9c8edb1f318dfd0787.exe C:\Users\Admin\AppData\Local\Temp\1b754a8b7d0c1d3be17f751d327b38961c3d6ea3b8769c9c8edb1f318dfd0787.exe
PID 1544 wrote to memory of 4332 N/A C:\Users\Admin\AppData\Local\Temp\1b754a8b7d0c1d3be17f751d327b38961c3d6ea3b8769c9c8edb1f318dfd0787.exe C:\ProgramData\Adobe\Adobe.exe
PID 1544 wrote to memory of 4332 N/A C:\Users\Admin\AppData\Local\Temp\1b754a8b7d0c1d3be17f751d327b38961c3d6ea3b8769c9c8edb1f318dfd0787.exe C:\ProgramData\Adobe\Adobe.exe
PID 1544 wrote to memory of 4332 N/A C:\Users\Admin\AppData\Local\Temp\1b754a8b7d0c1d3be17f751d327b38961c3d6ea3b8769c9c8edb1f318dfd0787.exe C:\ProgramData\Adobe\Adobe.exe
PID 4332 wrote to memory of 2784 N/A C:\ProgramData\Adobe\Adobe.exe C:\ProgramData\Adobe\Adobe.exe
PID 4332 wrote to memory of 2784 N/A C:\ProgramData\Adobe\Adobe.exe C:\ProgramData\Adobe\Adobe.exe
PID 4332 wrote to memory of 2784 N/A C:\ProgramData\Adobe\Adobe.exe C:\ProgramData\Adobe\Adobe.exe
PID 4332 wrote to memory of 2784 N/A C:\ProgramData\Adobe\Adobe.exe C:\ProgramData\Adobe\Adobe.exe
PID 4332 wrote to memory of 2784 N/A C:\ProgramData\Adobe\Adobe.exe C:\ProgramData\Adobe\Adobe.exe
PID 4332 wrote to memory of 2784 N/A C:\ProgramData\Adobe\Adobe.exe C:\ProgramData\Adobe\Adobe.exe
PID 4332 wrote to memory of 2784 N/A C:\ProgramData\Adobe\Adobe.exe C:\ProgramData\Adobe\Adobe.exe
PID 4332 wrote to memory of 2784 N/A C:\ProgramData\Adobe\Adobe.exe C:\ProgramData\Adobe\Adobe.exe
PID 4332 wrote to memory of 2784 N/A C:\ProgramData\Adobe\Adobe.exe C:\ProgramData\Adobe\Adobe.exe
PID 4332 wrote to memory of 2784 N/A C:\ProgramData\Adobe\Adobe.exe C:\ProgramData\Adobe\Adobe.exe
PID 4332 wrote to memory of 2784 N/A C:\ProgramData\Adobe\Adobe.exe C:\ProgramData\Adobe\Adobe.exe
PID 4332 wrote to memory of 2784 N/A C:\ProgramData\Adobe\Adobe.exe C:\ProgramData\Adobe\Adobe.exe

Processes

C:\Users\Admin\AppData\Local\Temp\1b754a8b7d0c1d3be17f751d327b38961c3d6ea3b8769c9c8edb1f318dfd0787.exe

"C:\Users\Admin\AppData\Local\Temp\1b754a8b7d0c1d3be17f751d327b38961c3d6ea3b8769c9c8edb1f318dfd0787.exe"

C:\Users\Admin\AppData\Local\Temp\1b754a8b7d0c1d3be17f751d327b38961c3d6ea3b8769c9c8edb1f318dfd0787.exe

"C:\Users\Admin\AppData\Local\Temp\1b754a8b7d0c1d3be17f751d327b38961c3d6ea3b8769c9c8edb1f318dfd0787.exe"

C:\ProgramData\Adobe\Adobe.exe

"C:\ProgramData\Adobe\Adobe.exe"

C:\ProgramData\Adobe\Adobe.exe

"C:\ProgramData\Adobe\Adobe.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 17.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
DE 104.250.180.178:7902 tcp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 192.142.123.92.in-addr.arpa udp
DE 104.250.180.178:7902 tcp
US 8.8.8.8:53 98.58.20.217.in-addr.arpa udp
DE 104.250.180.178:7902 tcp
US 8.8.8.8:53 45.19.74.20.in-addr.arpa udp
DE 104.250.180.178:7902 tcp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
DE 104.250.180.178:7902 tcp
DE 104.250.180.178:7902 tcp

Files

memory/4584-0-0x0000000074F0E000-0x0000000074F0F000-memory.dmp

memory/4584-1-0x0000000000B10000-0x0000000000C1A000-memory.dmp

memory/4584-2-0x0000000005C10000-0x00000000061B4000-memory.dmp

memory/4584-3-0x0000000005660000-0x00000000056F2000-memory.dmp

memory/4584-4-0x0000000005870000-0x0000000005BC4000-memory.dmp

memory/4584-5-0x0000000074F00000-0x00000000756B0000-memory.dmp

memory/4584-6-0x00000000057B0000-0x00000000057BA000-memory.dmp

memory/4584-7-0x0000000008870000-0x000000000888A000-memory.dmp

memory/4584-8-0x0000000006C30000-0x0000000006C3E000-memory.dmp

memory/4584-9-0x0000000006DE0000-0x0000000006EA0000-memory.dmp

memory/4584-10-0x000000000AE30000-0x000000000AECC000-memory.dmp

memory/1544-11-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1544-12-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1544-14-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1544-16-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4584-17-0x0000000074F00000-0x00000000756B0000-memory.dmp

C:\ProgramData\Adobe\Adobe.exe

MD5 995e20db533a2ae4f14b8ccc7a94a17b
SHA1 b4dd9fbacd892b7c69cec499969399343a484205
SHA256 1b754a8b7d0c1d3be17f751d327b38961c3d6ea3b8769c9c8edb1f318dfd0787
SHA512 e9357fac407375c08fe0885a8ed94bf63b53f1d7dc42c60a04bc9bd490d9964667c6e249b2d33f6f303cf3e69ae33af45ddf541f2104226438287632cc5f0936

memory/1544-27-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4332-29-0x00000000748CE000-0x00000000748CF000-memory.dmp

memory/4332-30-0x0000000005830000-0x0000000005B84000-memory.dmp

memory/4332-31-0x00000000748C0000-0x0000000075070000-memory.dmp

memory/2784-36-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2784-35-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2784-37-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4332-38-0x00000000748C0000-0x0000000075070000-memory.dmp

memory/2784-39-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2784-40-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2784-41-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2784-42-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2784-43-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2784-44-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2784-45-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2784-46-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2784-47-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2784-48-0x0000000000400000-0x0000000000482000-memory.dmp