Malware Analysis Report

2024-11-30 04:11

Sample ID 240408-bmeafacd76
Target 423e184767e7aa6c86106611b2061d6a.bin
SHA256 3d653b0e0186bda06391c465fb68a3b200eefcd128f72aad6ef53661cc4ecb84
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

3d653b0e0186bda06391c465fb68a3b200eefcd128f72aad6ef53661cc4ecb84

Threat Level: Known bad

The file 423e184767e7aa6c86106611b2061d6a.bin was found to be: Known bad.

Malicious Activity Summary

modiloader trojan remcos jons collection persistence rat spyware stealer

ModiLoader, DBatLoader

Remcos

ModiLoader Second Stage

Nirsoft

NirSoft WebBrowserPassView

NirSoft MailPassView

Executes dropped EXE

Reads user/profile data of web browsers

Adds Run key to start application

Accesses Microsoft Outlook accounts

Suspicious use of SetThreadContext

Program crash

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious behavior: MapViewOfSection

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Script User-Agent

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-08 01:15

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-08 01:15

Reported

2024-04-08 01:18

Platform

win7-20240319-en

Max time kernel

131s

Max time network

132s

Command Line

"C:\Users\Admin\AppData\Local\Temp\fe0cbe46b1c846b98e6e7bc36fc46aac22d50e82aa1aecfebca6769be007a575.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\fe0cbe46b1c846b98e6e7bc36fc46aac22d50e82aa1aecfebca6769be007a575.exe

"C:\Users\Admin\AppData\Local\Temp\fe0cbe46b1c846b98e6e7bc36fc46aac22d50e82aa1aecfebca6769be007a575.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2012 -s 720

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/2012-0-0x0000000000220000-0x0000000000221000-memory.dmp

memory/2012-1-0x0000000002E10000-0x0000000003E10000-memory.dmp

memory/2012-2-0x0000000002E10000-0x0000000003E10000-memory.dmp

memory/2012-4-0x0000000000220000-0x0000000000221000-memory.dmp

memory/2012-5-0x0000000000400000-0x00000000004F1000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-08 01:15

Reported

2024-04-08 01:18

Platform

win10v2004-20240226-en

Max time kernel

149s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\fe0cbe46b1c846b98e6e7bc36fc46aac22d50e82aa1aecfebca6769be007a575.exe"

Signatures

ModiLoader, DBatLoader

trojan modiloader

Remcos

rat remcos

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
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

Nirsoft

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

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\qblhtgdW.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\Wdgthlbq = "C:\\Users\\Public\\Wdgthlbq.url" C:\Users\Admin\AppData\Local\Temp\fe0cbe46b1c846b98e6e7bc36fc46aac22d50e82aa1aecfebca6769be007a575.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\qblhtgdW.pif N/A
N/A N/A C:\Users\Public\Libraries\qblhtgdW.pif N/A
N/A N/A C:\Users\Public\Libraries\qblhtgdW.pif N/A

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of SetWindowsHookEx

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4044 wrote to memory of 2632 N/A C:\Users\Admin\AppData\Local\Temp\fe0cbe46b1c846b98e6e7bc36fc46aac22d50e82aa1aecfebca6769be007a575.exe C:\Windows\SysWOW64\extrac32.exe
PID 4044 wrote to memory of 2632 N/A C:\Users\Admin\AppData\Local\Temp\fe0cbe46b1c846b98e6e7bc36fc46aac22d50e82aa1aecfebca6769be007a575.exe C:\Windows\SysWOW64\extrac32.exe
PID 4044 wrote to memory of 2632 N/A C:\Users\Admin\AppData\Local\Temp\fe0cbe46b1c846b98e6e7bc36fc46aac22d50e82aa1aecfebca6769be007a575.exe C:\Windows\SysWOW64\extrac32.exe
PID 4044 wrote to memory of 644 N/A C:\Users\Admin\AppData\Local\Temp\fe0cbe46b1c846b98e6e7bc36fc46aac22d50e82aa1aecfebca6769be007a575.exe C:\Users\Public\Libraries\qblhtgdW.pif
PID 4044 wrote to memory of 644 N/A C:\Users\Admin\AppData\Local\Temp\fe0cbe46b1c846b98e6e7bc36fc46aac22d50e82aa1aecfebca6769be007a575.exe C:\Users\Public\Libraries\qblhtgdW.pif
PID 4044 wrote to memory of 644 N/A C:\Users\Admin\AppData\Local\Temp\fe0cbe46b1c846b98e6e7bc36fc46aac22d50e82aa1aecfebca6769be007a575.exe C:\Users\Public\Libraries\qblhtgdW.pif
PID 4044 wrote to memory of 644 N/A C:\Users\Admin\AppData\Local\Temp\fe0cbe46b1c846b98e6e7bc36fc46aac22d50e82aa1aecfebca6769be007a575.exe C:\Users\Public\Libraries\qblhtgdW.pif
PID 4044 wrote to memory of 644 N/A C:\Users\Admin\AppData\Local\Temp\fe0cbe46b1c846b98e6e7bc36fc46aac22d50e82aa1aecfebca6769be007a575.exe C:\Users\Public\Libraries\qblhtgdW.pif
PID 644 wrote to memory of 4744 N/A C:\Users\Public\Libraries\qblhtgdW.pif C:\Users\Public\Libraries\qblhtgdW.pif
PID 644 wrote to memory of 4744 N/A C:\Users\Public\Libraries\qblhtgdW.pif C:\Users\Public\Libraries\qblhtgdW.pif
PID 644 wrote to memory of 4744 N/A C:\Users\Public\Libraries\qblhtgdW.pif C:\Users\Public\Libraries\qblhtgdW.pif
PID 644 wrote to memory of 4116 N/A C:\Users\Public\Libraries\qblhtgdW.pif C:\Users\Public\Libraries\qblhtgdW.pif
PID 644 wrote to memory of 4116 N/A C:\Users\Public\Libraries\qblhtgdW.pif C:\Users\Public\Libraries\qblhtgdW.pif
PID 644 wrote to memory of 4116 N/A C:\Users\Public\Libraries\qblhtgdW.pif C:\Users\Public\Libraries\qblhtgdW.pif
PID 644 wrote to memory of 3112 N/A C:\Users\Public\Libraries\qblhtgdW.pif C:\Users\Public\Libraries\qblhtgdW.pif
PID 644 wrote to memory of 3112 N/A C:\Users\Public\Libraries\qblhtgdW.pif C:\Users\Public\Libraries\qblhtgdW.pif
PID 644 wrote to memory of 3112 N/A C:\Users\Public\Libraries\qblhtgdW.pif C:\Users\Public\Libraries\qblhtgdW.pif

Processes

C:\Users\Admin\AppData\Local\Temp\fe0cbe46b1c846b98e6e7bc36fc46aac22d50e82aa1aecfebca6769be007a575.exe

"C:\Users\Admin\AppData\Local\Temp\fe0cbe46b1c846b98e6e7bc36fc46aac22d50e82aa1aecfebca6769be007a575.exe"

C:\Windows\SysWOW64\extrac32.exe

C:\\Windows\\System32\\extrac32.exe /C /Y C:\Users\Admin\AppData\Local\Temp\fe0cbe46b1c846b98e6e7bc36fc46aac22d50e82aa1aecfebca6769be007a575.exe C:\\Users\\Public\\Libraries\\Wdgthlbq.PIF

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

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

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

C:\Users\Public\Libraries\qblhtgdW.pif /stext "C:\Users\Admin\AppData\Local\Temp\vlcbb"

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

C:\Users\Public\Libraries\qblhtgdW.pif /stext "C:\Users\Admin\AppData\Local\Temp\xfpmuhxvi"

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

C:\Users\Public\Libraries\qblhtgdW.pif /stext "C:\Users\Admin\AppData\Local\Temp\hhvevahwwvpl"

Network

Country Destination Domain Proto
NL 52.142.223.178:80 tcp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 68.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
GB 23.44.234.16:80 tcp
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 amkv5g.dm.files.1drv.com udp
US 13.107.42.12:443 amkv5g.dm.files.1drv.com tcp
US 8.8.8.8:53 11.137.107.13.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 12.42.107.13.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 172.245.208.13:4445 tcp
US 8.8.8.8:53 13.208.245.172.in-addr.arpa udp
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 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 79.121.231.20.in-addr.arpa udp
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 8.8.8.8:53 172.210.232.199.in-addr.arpa udp

Files

memory/4044-0-0x0000000000A00000-0x0000000000A01000-memory.dmp

memory/4044-1-0x0000000003F60000-0x0000000004F60000-memory.dmp

memory/4044-2-0x0000000003F60000-0x0000000004F60000-memory.dmp

memory/4044-4-0x0000000000400000-0x00000000004F1000-memory.dmp

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

MD5 c116d3604ceafe7057d77ff27552c215
SHA1 452b14432fb5758b46f2897aeccd89f7c82a727d
SHA256 7bcdc2e607abc65ef93afd009c3048970d9e8d1c2a18fc571562396b13ebb301
SHA512 9202a00eeaf4c5be94de32fd41bfea40fc32d368955d49b7bad2b5c23c4ebc92dccb37d99f5a14e53ad674b63f1baa6efb1feb27225c86693ead3262a26d66c6

memory/644-15-0x0000000000400000-0x0000000001400000-memory.dmp

memory/644-12-0x0000000000400000-0x0000000001400000-memory.dmp

memory/644-17-0x0000000000400000-0x0000000001400000-memory.dmp

memory/644-19-0x0000000000400000-0x0000000001400000-memory.dmp

memory/644-20-0x0000000000400000-0x0000000001400000-memory.dmp

memory/644-22-0x0000000000400000-0x0000000001400000-memory.dmp

memory/644-23-0x0000000000400000-0x0000000001400000-memory.dmp

memory/644-24-0x0000000000400000-0x0000000001400000-memory.dmp

memory/644-25-0x0000000000400000-0x0000000001400000-memory.dmp

memory/644-26-0x0000000000400000-0x0000000001400000-memory.dmp

memory/644-28-0x0000000000400000-0x0000000001400000-memory.dmp

memory/644-30-0x0000000000400000-0x0000000001400000-memory.dmp

memory/4744-31-0x0000000000400000-0x0000000000478000-memory.dmp

memory/4744-34-0x0000000000400000-0x0000000000478000-memory.dmp

memory/4744-35-0x0000000000400000-0x0000000000478000-memory.dmp

memory/4744-40-0x0000000000400000-0x0000000000478000-memory.dmp

memory/4116-44-0x0000000000400000-0x0000000000462000-memory.dmp

memory/3112-45-0x0000000000400000-0x0000000000424000-memory.dmp

memory/4116-47-0x0000000000400000-0x0000000000462000-memory.dmp

memory/4744-52-0x0000000000400000-0x0000000000478000-memory.dmp

memory/3112-53-0x0000000000400000-0x0000000000424000-memory.dmp

memory/3112-56-0x0000000000400000-0x0000000000424000-memory.dmp

memory/3112-55-0x0000000000400000-0x0000000000424000-memory.dmp

memory/4116-46-0x0000000000400000-0x0000000000462000-memory.dmp

memory/4116-39-0x0000000000400000-0x0000000000462000-memory.dmp

memory/644-60-0x0000000026510000-0x0000000026529000-memory.dmp

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

MD5 789c726863f720a7ba5d255e7a000734
SHA1 0427bac5473ae472d38f2f03e8de82d2dfb1a302
SHA256 2dbc369b0667f9cd7459735e998c13ffb3a06b91024e8d483f7776b292a9b627
SHA512 e469fd47e55e9c0548bb63868d57ec66f3c50ad69686cfaabd4a0e1e160ef56dc74caabc3643622b2c1769b026ea6a5651e0cc18f1d64e8454feb4fa529e1ce8

memory/644-58-0x0000000000400000-0x0000000000482000-memory.dmp

memory/644-63-0x0000000026510000-0x0000000026529000-memory.dmp

memory/644-64-0x0000000026510000-0x0000000026529000-memory.dmp

memory/644-65-0x0000000026510000-0x0000000026529000-memory.dmp

memory/644-66-0x0000000026510000-0x0000000026529000-memory.dmp

memory/644-67-0x0000000000400000-0x0000000001400000-memory.dmp

memory/644-70-0x0000000000400000-0x0000000000482000-memory.dmp

C:\ProgramData\remcos\logs.dat

MD5 38359a56d2c98b08a691b1795c85adc0
SHA1 e81eba4a330e8a03e7fc8b1e94b50eb5b691631b
SHA256 f292f1151bc28f39b2e7f5ef06d035f32156cce408f10219a6aff600dbdfed4f
SHA512 7700dff600c96893cbcb5fa37d3334463b6fe8b989335ede20cd585a5a5c347413e6e1baf9f9b88d5de11da37fbed1199edb32b2e66979f1aa1830a034374836

memory/644-73-0x0000000000400000-0x0000000001400000-memory.dmp

memory/644-74-0x0000000000400000-0x0000000001400000-memory.dmp

memory/644-75-0x0000000000400000-0x0000000000482000-memory.dmp

memory/644-77-0x0000000026510000-0x0000000026529000-memory.dmp

memory/644-79-0x0000000000400000-0x0000000000482000-memory.dmp

memory/644-82-0x0000000000400000-0x0000000000482000-memory.dmp

memory/644-85-0x0000000000400000-0x0000000001400000-memory.dmp

memory/644-86-0x0000000000400000-0x0000000001400000-memory.dmp

memory/644-87-0x0000000000400000-0x0000000000482000-memory.dmp

memory/644-90-0x0000000000400000-0x0000000000482000-memory.dmp

memory/644-93-0x0000000000400000-0x0000000000482000-memory.dmp

memory/644-96-0x0000000000400000-0x0000000001400000-memory.dmp

memory/644-97-0x0000000000400000-0x0000000001400000-memory.dmp

memory/644-98-0x0000000000400000-0x0000000000482000-memory.dmp

memory/644-101-0x0000000000400000-0x0000000000482000-memory.dmp

memory/644-104-0x0000000000400000-0x0000000000482000-memory.dmp

memory/644-107-0x0000000000400000-0x0000000000482000-memory.dmp

memory/644-108-0x0000000000400000-0x0000000001400000-memory.dmp

memory/644-109-0x0000000000400000-0x0000000001400000-memory.dmp