Malware Analysis Report

2024-11-30 04:09

Sample ID 240408-bgt4pscb2t
Target 1aedcb18ce4460c5eecd34016cb42308b2f8ac1ddc51fb265b45200116a19de9.exe
SHA256 1aedcb18ce4460c5eecd34016cb42308b2f8ac1ddc51fb265b45200116a19de9
Tags
modiloader trojan remcos jons collection persistence rat spyware stealer
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

1aedcb18ce4460c5eecd34016cb42308b2f8ac1ddc51fb265b45200116a19de9

Threat Level: Known bad

The file 1aedcb18ce4460c5eecd34016cb42308b2f8ac1ddc51fb265b45200116a19de9.exe was found to be: Known bad.

Malicious Activity Summary

modiloader trojan remcos jons collection persistence rat spyware stealer

ModiLoader, DBatLoader

Remcos

Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers

NirSoft MailPassView

NirSoft WebBrowserPassView

Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)

ModiLoader Second Stage

Nirsoft

Detects executables referencing many email and collaboration clients. Observed in information stealers

Detects executables built or packed with MPress PE compressor

Executes dropped EXE

Reads user/profile data of web browsers

Accesses Microsoft Outlook accounts

Adds Run key to start application

Suspicious use of SetThreadContext

Unsigned PE

Program crash

Suspicious use of SetWindowsHookEx

Script User-Agent

Suspicious behavior: MapViewOfSection

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-08 01:07

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-08 01:07

Reported

2024-04-08 01:09

Platform

win7-20231129-en

Max time kernel

140s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\1aedcb18ce4460c5eecd34016cb42308b2f8ac1ddc51fb265b45200116a19de9.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\1aedcb18ce4460c5eecd34016cb42308b2f8ac1ddc51fb265b45200116a19de9.exe

"C:\Users\Admin\AppData\Local\Temp\1aedcb18ce4460c5eecd34016cb42308b2f8ac1ddc51fb265b45200116a19de9.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2244 -s 688

Network

Country Destination Domain Proto
US 8.8.8.8:53 onedrive.live.com udp
US 13.107.137.11:443 onedrive.live.com tcp
US 13.107.137.11:443 onedrive.live.com tcp

Files

memory/2244-0-0x0000000000220000-0x0000000000221000-memory.dmp

memory/2244-1-0x00000000031A0000-0x00000000041A0000-memory.dmp

memory/2244-2-0x00000000031A0000-0x00000000041A0000-memory.dmp

memory/2244-4-0x0000000000220000-0x0000000000221000-memory.dmp

memory/2244-5-0x0000000000400000-0x00000000004F1000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-08 01:07

Reported

2024-04-08 01:10

Platform

win10v2004-20240226-en

Max time kernel

149s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\1aedcb18ce4460c5eecd34016cb42308b2f8ac1ddc51fb265b45200116a19de9.exe"

Signatures

ModiLoader, DBatLoader

trojan modiloader

Remcos

rat remcos

Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)

Description Indicator Process Target
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Detects executables built or packed with MPress PE compressor

Description Indicator Process Target
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Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers

Description Indicator Process Target
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Detects executables referencing many email and collaboration clients. Observed in information stealers

Description Indicator Process Target
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ModiLoader Second Stage

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

NirSoft MailPassView

Description Indicator Process Target
N/A N/A N/A N/A
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NirSoft WebBrowserPassView

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

Description Indicator Process Target
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Reads user/profile data of web browsers

spyware stealer

Accesses Microsoft Outlook accounts

collection
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts C:\Users\Public\Libraries\mlxcdpnH.pif N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Hnpdcxlm = "C:\\Users\\Public\\Hnpdcxlm.url" C:\Users\Admin\AppData\Local\Temp\1aedcb18ce4460c5eecd34016cb42308b2f8ac1ddc51fb265b45200116a19de9.exe N/A

Script User-Agent

Description Indicator Process Target
HTTP User-Agent header Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) N/A N/A
HTTP User-Agent header Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) N/A N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Public\Libraries\mlxcdpnH.pif N/A
N/A N/A C:\Users\Public\Libraries\mlxcdpnH.pif N/A
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Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Public\Libraries\mlxcdpnH.pif N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Public\Libraries\mlxcdpnH.pif N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4544 wrote to memory of 3932 N/A C:\Users\Admin\AppData\Local\Temp\1aedcb18ce4460c5eecd34016cb42308b2f8ac1ddc51fb265b45200116a19de9.exe C:\Windows\SysWOW64\extrac32.exe
PID 4544 wrote to memory of 3932 N/A C:\Users\Admin\AppData\Local\Temp\1aedcb18ce4460c5eecd34016cb42308b2f8ac1ddc51fb265b45200116a19de9.exe C:\Windows\SysWOW64\extrac32.exe
PID 4544 wrote to memory of 3932 N/A C:\Users\Admin\AppData\Local\Temp\1aedcb18ce4460c5eecd34016cb42308b2f8ac1ddc51fb265b45200116a19de9.exe C:\Windows\SysWOW64\extrac32.exe
PID 4544 wrote to memory of 1812 N/A C:\Users\Admin\AppData\Local\Temp\1aedcb18ce4460c5eecd34016cb42308b2f8ac1ddc51fb265b45200116a19de9.exe C:\Users\Public\Libraries\mlxcdpnH.pif
PID 4544 wrote to memory of 1812 N/A C:\Users\Admin\AppData\Local\Temp\1aedcb18ce4460c5eecd34016cb42308b2f8ac1ddc51fb265b45200116a19de9.exe C:\Users\Public\Libraries\mlxcdpnH.pif
PID 4544 wrote to memory of 1812 N/A C:\Users\Admin\AppData\Local\Temp\1aedcb18ce4460c5eecd34016cb42308b2f8ac1ddc51fb265b45200116a19de9.exe C:\Users\Public\Libraries\mlxcdpnH.pif
PID 4544 wrote to memory of 1812 N/A C:\Users\Admin\AppData\Local\Temp\1aedcb18ce4460c5eecd34016cb42308b2f8ac1ddc51fb265b45200116a19de9.exe C:\Users\Public\Libraries\mlxcdpnH.pif
PID 4544 wrote to memory of 1812 N/A C:\Users\Admin\AppData\Local\Temp\1aedcb18ce4460c5eecd34016cb42308b2f8ac1ddc51fb265b45200116a19de9.exe C:\Users\Public\Libraries\mlxcdpnH.pif
PID 1812 wrote to memory of 3088 N/A C:\Users\Public\Libraries\mlxcdpnH.pif C:\Users\Public\Libraries\mlxcdpnH.pif
PID 1812 wrote to memory of 3088 N/A C:\Users\Public\Libraries\mlxcdpnH.pif C:\Users\Public\Libraries\mlxcdpnH.pif
PID 1812 wrote to memory of 3088 N/A C:\Users\Public\Libraries\mlxcdpnH.pif C:\Users\Public\Libraries\mlxcdpnH.pif
PID 1812 wrote to memory of 4136 N/A C:\Users\Public\Libraries\mlxcdpnH.pif C:\Users\Public\Libraries\mlxcdpnH.pif
PID 1812 wrote to memory of 4136 N/A C:\Users\Public\Libraries\mlxcdpnH.pif C:\Users\Public\Libraries\mlxcdpnH.pif
PID 1812 wrote to memory of 4136 N/A C:\Users\Public\Libraries\mlxcdpnH.pif C:\Users\Public\Libraries\mlxcdpnH.pif
PID 1812 wrote to memory of 4444 N/A C:\Users\Public\Libraries\mlxcdpnH.pif C:\Users\Public\Libraries\mlxcdpnH.pif
PID 1812 wrote to memory of 4444 N/A C:\Users\Public\Libraries\mlxcdpnH.pif C:\Users\Public\Libraries\mlxcdpnH.pif
PID 1812 wrote to memory of 4444 N/A C:\Users\Public\Libraries\mlxcdpnH.pif C:\Users\Public\Libraries\mlxcdpnH.pif

Processes

C:\Users\Admin\AppData\Local\Temp\1aedcb18ce4460c5eecd34016cb42308b2f8ac1ddc51fb265b45200116a19de9.exe

"C:\Users\Admin\AppData\Local\Temp\1aedcb18ce4460c5eecd34016cb42308b2f8ac1ddc51fb265b45200116a19de9.exe"

C:\Windows\SysWOW64\extrac32.exe

C:\\Windows\\System32\\extrac32.exe /C /Y C:\Users\Admin\AppData\Local\Temp\1aedcb18ce4460c5eecd34016cb42308b2f8ac1ddc51fb265b45200116a19de9.exe C:\\Users\\Public\\Libraries\\Hnpdcxlm.PIF

C:\Users\Public\Libraries\mlxcdpnH.pif

C:\Users\Public\Libraries\mlxcdpnH.pif

C:\Users\Public\Libraries\mlxcdpnH.pif

C:\Users\Public\Libraries\mlxcdpnH.pif /stext "C:\Users\Admin\AppData\Local\Temp\garw"

C:\Users\Public\Libraries\mlxcdpnH.pif

C:\Users\Public\Libraries\mlxcdpnH.pif /stext "C:\Users\Admin\AppData\Local\Temp\juxgazk"

C:\Users\Public\Libraries\mlxcdpnH.pif

C:\Users\Public\Libraries\mlxcdpnH.pif /stext "C:\Users\Admin\AppData\Local\Temp\twcztsvnfj"

Network

Country Destination Domain Proto
GB 23.44.234.16:80 tcp
US 8.8.8.8:53 79.121.231.20.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 74.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 onedrive.live.com udp
US 13.107.137.11:443 onedrive.live.com tcp
US 13.107.137.11:443 onedrive.live.com tcp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 mqsfqg.dm.files.1drv.com udp
US 13.107.42.12:443 mqsfqg.dm.files.1drv.com tcp
US 8.8.8.8:53 11.137.107.13.in-addr.arpa udp
US 8.8.8.8:53 12.42.107.13.in-addr.arpa udp
US 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
US 172.245.208.13:4445 tcp
US 172.245.208.13:4445 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 13.208.245.172.in-addr.arpa udp
US 8.8.8.8:53 50.33.237.178.in-addr.arpa udp
US 8.8.8.8:53 159.113.53.23.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 23.173.189.20.in-addr.arpa udp

Files

memory/4544-0-0x00000000006F0000-0x00000000006F1000-memory.dmp

memory/4544-1-0x0000000004120000-0x0000000005120000-memory.dmp

memory/4544-2-0x0000000004120000-0x0000000005120000-memory.dmp

memory/4544-4-0x0000000000400000-0x00000000004F1000-memory.dmp

memory/1812-12-0x0000000000400000-0x0000000001400000-memory.dmp

C:\Users\Public\Libraries\mlxcdpnH.pif

MD5 c116d3604ceafe7057d77ff27552c215
SHA1 452b14432fb5758b46f2897aeccd89f7c82a727d
SHA256 7bcdc2e607abc65ef93afd009c3048970d9e8d1c2a18fc571562396b13ebb301
SHA512 9202a00eeaf4c5be94de32fd41bfea40fc32d368955d49b7bad2b5c23c4ebc92dccb37d99f5a14e53ad674b63f1baa6efb1feb27225c86693ead3262a26d66c6

memory/1812-15-0x0000000000400000-0x0000000001400000-memory.dmp

memory/1812-17-0x0000000000400000-0x0000000001400000-memory.dmp

memory/1812-19-0x0000000000400000-0x0000000001400000-memory.dmp

memory/1812-20-0x0000000000400000-0x0000000001400000-memory.dmp

memory/1812-22-0x0000000000400000-0x0000000001400000-memory.dmp

memory/1812-23-0x0000000000400000-0x0000000001400000-memory.dmp

memory/1812-24-0x0000000000400000-0x0000000001400000-memory.dmp

memory/1812-25-0x0000000000400000-0x0000000001400000-memory.dmp

memory/1812-26-0x0000000000400000-0x0000000001400000-memory.dmp

memory/1812-27-0x0000000000400000-0x0000000001400000-memory.dmp

memory/1812-28-0x0000000000400000-0x0000000001400000-memory.dmp

memory/1812-30-0x0000000000400000-0x0000000001400000-memory.dmp

memory/4136-33-0x0000000000400000-0x0000000000462000-memory.dmp

memory/3088-37-0x0000000000400000-0x0000000000478000-memory.dmp

memory/4444-40-0x0000000000400000-0x0000000000424000-memory.dmp

memory/4444-48-0x0000000000400000-0x0000000000424000-memory.dmp

memory/4136-47-0x0000000000400000-0x0000000000462000-memory.dmp

memory/4444-54-0x0000000000400000-0x0000000000424000-memory.dmp

memory/4444-55-0x0000000000400000-0x0000000000424000-memory.dmp

memory/4136-45-0x0000000000400000-0x0000000000462000-memory.dmp

memory/3088-41-0x0000000000400000-0x0000000000478000-memory.dmp

memory/4136-38-0x0000000000400000-0x0000000000462000-memory.dmp

memory/3088-31-0x0000000000400000-0x0000000000478000-memory.dmp

memory/3088-58-0x0000000000400000-0x0000000000478000-memory.dmp

memory/1812-61-0x000000003E320000-0x000000003E339000-memory.dmp

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

MD5 789c726863f720a7ba5d255e7a000734
SHA1 0427bac5473ae472d38f2f03e8de82d2dfb1a302
SHA256 2dbc369b0667f9cd7459735e998c13ffb3a06b91024e8d483f7776b292a9b627
SHA512 e469fd47e55e9c0548bb63868d57ec66f3c50ad69686cfaabd4a0e1e160ef56dc74caabc3643622b2c1769b026ea6a5651e0cc18f1d64e8454feb4fa529e1ce8

memory/1812-65-0x000000003E320000-0x000000003E339000-memory.dmp

memory/1812-66-0x000000003E320000-0x000000003E339000-memory.dmp

memory/1812-64-0x000000003E320000-0x000000003E339000-memory.dmp

memory/1812-67-0x0000000000400000-0x0000000001400000-memory.dmp

memory/1812-69-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1812-72-0x0000000000400000-0x0000000000482000-memory.dmp

C:\ProgramData\remcos\logs.dat

MD5 a213e7265ac106c117feac7de9aa166f
SHA1 a4bfea2d8d692dd993c9702fdcb2988803fc71d0
SHA256 86b65fca8efb59dd1d403236412f37a80c542ead8b624d14973ea79a6c6e660f
SHA512 89e0cd7556568c9c0461f51155e7cc2cd66e4c1cefd306f405c01bec68e6f95715877a738777755ab1945eefdae91bb4c7ade6659c6ff515dd88a173511f2cba

memory/1812-75-0x000000003E320000-0x000000003E339000-memory.dmp

memory/1812-77-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1812-78-0x0000000000400000-0x0000000001400000-memory.dmp

memory/1812-79-0x0000000000400000-0x0000000001400000-memory.dmp

memory/1812-82-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1812-84-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1812-87-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1812-89-0x0000000000400000-0x0000000001400000-memory.dmp

memory/1812-90-0x0000000000400000-0x0000000001400000-memory.dmp

memory/1812-92-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1812-95-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1812-99-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1812-100-0x0000000000400000-0x0000000001400000-memory.dmp

memory/1812-101-0x0000000000400000-0x0000000001400000-memory.dmp

memory/1812-104-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1812-106-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1812-109-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1812-111-0x0000000000400000-0x0000000001400000-memory.dmp

memory/1812-112-0x0000000000400000-0x0000000001400000-memory.dmp