Malware Analysis Report

2024-11-13 18:48

Sample ID 240726-sgl7javeqm
Target MalwareBazaar.3
SHA256 1b7645def29702c924a9cff0a5234b8a697f6d89be75593a725cf8f7da8c7288
Tags
remotehost remcos collection credential_access discovery spyware stealer 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

1b7645def29702c924a9cff0a5234b8a697f6d89be75593a725cf8f7da8c7288

Threat Level: Known bad

The file MalwareBazaar.3 was found to be: Known bad.

Malicious Activity Summary

remotehost remcos collection credential_access discovery spyware stealer rat

Remcos

Remcos family

Credentials from Password Stores: Credentials from Web Browsers

NirSoft WebBrowserPassView

NirSoft MailPassView

Detected Nirsoft tools

Reads user/profile data of web browsers

Accesses Microsoft Outlook accounts

Suspicious use of SetThreadContext

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: MapViewOfSection

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-07-26 15:05

Signatures

Remcos family

remcos

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-26 15:05

Reported

2024-07-26 15:09

Platform

win7-20240704-en

Max time kernel

148s

Max time network

148s

Command Line

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

Signatures

Credentials from Password Stores: Credentials from Web Browsers

credential_access stealer

Detected Nirsoft tools

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

NirSoft MailPassView

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

NirSoft WebBrowserPassView

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

Reads user/profile data of web browsers

spyware stealer

Accesses Microsoft Outlook accounts

collection
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe N/A

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\MalwareBazaar.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe N/A

Suspicious behavior: EnumeratesProcesses

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

Suspicious behavior: MapViewOfSection

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

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of SetWindowsHookEx

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2960 wrote to memory of 2868 N/A C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe
PID 2960 wrote to memory of 2868 N/A C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe
PID 2960 wrote to memory of 2868 N/A C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe
PID 2960 wrote to memory of 2868 N/A C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe
PID 2960 wrote to memory of 2896 N/A C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe
PID 2960 wrote to memory of 2896 N/A C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe
PID 2960 wrote to memory of 2896 N/A C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe
PID 2960 wrote to memory of 2896 N/A C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe
PID 2960 wrote to memory of 2792 N/A C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe
PID 2960 wrote to memory of 2792 N/A C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe
PID 2960 wrote to memory of 2792 N/A C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe
PID 2960 wrote to memory of 2792 N/A C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe

Processes

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

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

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

C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe /stext "C:\Users\Admin\AppData\Local\Temp\rqorubmecnirwbkpaylnx"

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

C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe /stext "C:\Users\Admin\AppData\Local\Temp\ckbbvtwgqvaehhytriggidrql"

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

C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe /stext "C:\Users\Admin\AppData\Local\Temp\emguvlhamdsjjnuxatsililhlwxs"

Network

Country Destination Domain Proto
US 8.8.8.8:53 maveing.duckdns.org udp
US 192.3.101.142:18576 maveing.duckdns.org tcp
US 192.3.101.142:18576 maveing.duckdns.org tcp
US 8.8.8.8:53 geoplugin.net udp
NL 178.237.33.50:80 geoplugin.net tcp

Files

memory/2868-1-0x0000000000400000-0x0000000000478000-memory.dmp

memory/2896-4-0x0000000000400000-0x0000000000462000-memory.dmp

memory/2896-11-0x0000000000400000-0x0000000000462000-memory.dmp

memory/2792-16-0x0000000000400000-0x0000000000424000-memory.dmp

memory/2792-17-0x0000000000400000-0x0000000000424000-memory.dmp

memory/2792-15-0x0000000000400000-0x0000000000424000-memory.dmp

memory/2896-13-0x0000000000400000-0x0000000000462000-memory.dmp

memory/2792-12-0x0000000000400000-0x0000000000424000-memory.dmp

memory/2792-20-0x0000000000400000-0x0000000000424000-memory.dmp

memory/2792-18-0x0000000000430000-0x0000000000497000-memory.dmp

memory/2868-10-0x0000000000400000-0x0000000000478000-memory.dmp

memory/2896-9-0x0000000000400000-0x0000000000462000-memory.dmp

memory/2868-8-0x0000000000400000-0x0000000000478000-memory.dmp

memory/2868-6-0x0000000000400000-0x0000000000478000-memory.dmp

memory/2868-25-0x0000000000400000-0x0000000000478000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\rqorubmecnirwbkpaylnx

MD5 f3b25701fe362ec84616a93a45ce9998
SHA1 d62636d8caec13f04e28442a0a6fa1afeb024bbb
SHA256 b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209
SHA512 98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

memory/2960-29-0x0000000010000000-0x0000000010019000-memory.dmp

memory/2960-33-0x0000000010000000-0x0000000010019000-memory.dmp

memory/2960-32-0x0000000010000000-0x0000000010019000-memory.dmp

memory/2896-34-0x0000000000400000-0x0000000000462000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\Notepo\logs.dat

MD5 98827b2d02d68df1c8a06b49e5d0016c
SHA1 4bd8c4eec3a81c99c7390fb1436e9646c4cdaffa
SHA256 5dcc657bdf4a4fb47bde85a26238c38b57cc2b0f536f48c5b5f246d5d1217a07
SHA512 9c9d8c8e77c53216c9a930499504c1cd5887c036af3d3b5ce09d4cffad3cf2dab6f1923b9fe024ab89ae81ec6451475fa4364f7fc28f0453385c8adaff7a7d2a

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-26 15:05

Reported

2024-07-26 15:08

Platform

win10v2004-20240709-en

Max time kernel

149s

Max time network

155s

Command Line

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

Signatures

Remcos

rat remcos

Credentials from Password Stores: Credentials from Web Browsers

credential_access stealer

Detected Nirsoft tools

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

NirSoft MailPassView

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

NirSoft WebBrowserPassView

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

Reads user/profile data of web browsers

spyware stealer

Accesses Microsoft Outlook accounts

collection
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-464762018-485119342-1613148473-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe N/A

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\MalwareBazaar.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe N/A

Suspicious behavior: MapViewOfSection

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

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of SetWindowsHookEx

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

Processes

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

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

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

C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe /stext "C:\Users\Admin\AppData\Local\Temp\sxrzxtubupzzgyowswnamrhywiwhuk"

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

C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe /stext "C:\Users\Admin\AppData\Local\Temp\dzesymfdqxrmqekikghbpecpxwoqnvwkf"

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

C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe /stext "C:\Users\Admin\AppData\Local\Temp\ntkdy"

Network

Country Destination Domain Proto
US 8.8.8.8:53 maveing.duckdns.org udp
US 192.3.101.142:18576 maveing.duckdns.org tcp
US 8.8.8.8:53 142.101.3.192.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 23.177.190.20.in-addr.arpa udp
US 192.3.101.142:18576 maveing.duckdns.org tcp
US 8.8.8.8:53 geoplugin.net udp
NL 178.237.33.50:80 geoplugin.net tcp
US 8.8.8.8:53 216.143.123.92.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 50.33.237.178.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 24.140.123.92.in-addr.arpa udp
US 8.8.8.8:53 25.140.123.92.in-addr.arpa udp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp

Files

memory/968-3-0x0000000000400000-0x0000000000478000-memory.dmp

memory/1560-7-0x0000000000400000-0x0000000000424000-memory.dmp

memory/968-10-0x0000000000400000-0x0000000000478000-memory.dmp

memory/968-17-0x0000000000400000-0x0000000000478000-memory.dmp

memory/888-21-0x0000000000400000-0x0000000000462000-memory.dmp

memory/968-18-0x0000000000400000-0x0000000000478000-memory.dmp

memory/888-16-0x0000000000400000-0x0000000000462000-memory.dmp

memory/1560-15-0x0000000000400000-0x0000000000424000-memory.dmp

memory/888-13-0x0000000000400000-0x0000000000462000-memory.dmp

memory/1560-12-0x0000000000400000-0x0000000000424000-memory.dmp

memory/888-11-0x0000000000400000-0x0000000000462000-memory.dmp

memory/1560-14-0x0000000000400000-0x0000000000424000-memory.dmp

memory/1560-9-0x0000000000400000-0x0000000000424000-memory.dmp

memory/888-4-0x0000000000400000-0x0000000000462000-memory.dmp

memory/1560-25-0x0000000000430000-0x00000000004F9000-memory.dmp

memory/1560-27-0x0000000000400000-0x0000000000424000-memory.dmp

memory/968-29-0x0000000000400000-0x0000000000478000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\sxrzxtubupzzgyowswnamrhywiwhuk

MD5 5f9f645ff4e46b384ac7a261904aabcb
SHA1 203a1216e576f93c2236a833b93c32c4fd8a0d3b
SHA256 887d93e6cbd14afa0cdf26f303b89cc1963ca5c5d7faba6c91ae87be183273b3
SHA512 b679e91072a1c3fa59e40ff6565c23549f33520c9c6bc8d1f4e055d65dddec3a8e93c165060668fbabae9f27de28985cc826b23f8402caa5d7bd4455165acbde

memory/2288-32-0x0000000010000000-0x0000000010019000-memory.dmp

memory/2288-35-0x0000000010000000-0x0000000010019000-memory.dmp

memory/2288-36-0x0000000010000000-0x0000000010019000-memory.dmp

memory/2288-37-0x0000000000400000-0x0000000000482000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\Notepo\logs.dat

MD5 43743511e278d786c57459df3244a772
SHA1 a5ce6c581250aa0be529070b03899a1006ebe97a
SHA256 c29b71d575e6fefac1679e2307b6f627b669efef36b750923d51a7a72f33c0de
SHA512 fb65af3f9ae1c93d904fedaad498bb1b452f0a920eebe49e214a2e735bd4700395109e9bc0e6aed81980e64664472c37077d91f400830e5f5a51d75a462902ae

memory/2288-43-0x0000000000400000-0x0000000000482000-memory.dmp