Malware Analysis Report

2024-12-07 22:34

Sample ID 240721-q2te8svcnl
Target 21072024_1345_crowdstrike-hotfix.zip
SHA256 c44506fe6e1ede5a104008755abf5b6ace51f1a84ad656a2dccc7f2c39c0eca2
Tags
remcos fudstub rat
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral8

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral9

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral11

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral13

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral15

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral16

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral14

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: behavioral10

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral12

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral18

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral5

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral6

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral7

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral17

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

c44506fe6e1ede5a104008755abf5b6ace51f1a84ad656a2dccc7f2c39c0eca2

Threat Level: Known bad

The file 21072024_1345_crowdstrike-hotfix.zip was found to be: Known bad.

Malicious Activity Summary

remcos fudstub rat

Remcos

Suspicious use of SetThreadContext

Enumerates physical storage devices

Program crash

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-07-21 13:45

Signatures

N/A

Analysis: behavioral8

Detonation Overview

Submitted

2024-07-21 13:45

Reported

2024-07-21 13:48

Platform

win10v2004-20240709-en

Max time kernel

141s

Max time network

141s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\maddisAsm_.dll,#1

Signatures

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2412 wrote to memory of 2848 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2412 wrote to memory of 2848 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2412 wrote to memory of 2848 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\maddisAsm_.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\maddisAsm_.dll,#1

Network

Country Destination Domain Proto
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 71.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 147.142.123.92.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.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

Files

memory/2848-1-0x0000000057000000-0x000000005703F000-memory.dmp

memory/2848-2-0x0000000050000000-0x0000000050116000-memory.dmp

memory/2848-0-0x0000000057800000-0x0000000057812000-memory.dmp

memory/2848-3-0x0000000050120000-0x000000005030D000-memory.dmp

Analysis: behavioral9

Detonation Overview

Submitted

2024-07-21 13:45

Reported

2024-07-21 13:48

Platform

win7-20240705-en

Max time kernel

119s

Max time network

121s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\madexcept_.dll,#1

Signatures

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2036 wrote to memory of 2916 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2036 wrote to memory of 2916 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2036 wrote to memory of 2916 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2036 wrote to memory of 2916 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2036 wrote to memory of 2916 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2036 wrote to memory of 2916 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2036 wrote to memory of 2916 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\madexcept_.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\madexcept_.dll,#1

Network

N/A

Files

memory/2916-0-0x0000000059800000-0x000000005986E000-memory.dmp

memory/2916-1-0x0000000050000000-0x0000000050116000-memory.dmp

memory/2916-2-0x0000000057000000-0x000000005703F000-memory.dmp

memory/2916-4-0x0000000057800000-0x0000000057812000-memory.dmp

memory/2916-3-0x0000000050120000-0x000000005030D000-memory.dmp

Analysis: behavioral11

Detonation Overview

Submitted

2024-07-21 13:45

Reported

2024-07-21 13:48

Platform

win7-20240708-en

Max time kernel

117s

Max time network

118s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\rtl120.dll,#1

Signatures

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2172 wrote to memory of 2628 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2172 wrote to memory of 2628 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2172 wrote to memory of 2628 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2172 wrote to memory of 2628 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2172 wrote to memory of 2628 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2172 wrote to memory of 2628 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2172 wrote to memory of 2628 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\rtl120.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\rtl120.dll,#1

Network

N/A

Files

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-21 13:45

Reported

2024-07-21 13:48

Platform

win7-20240704-en

Max time kernel

148s

Max time network

146s

Command Line

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

Signatures

Remcos

rat remcos

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1336 set thread context of 1256 N/A C:\Users\Admin\AppData\Local\Temp\Setup.exe C:\Windows\SysWOW64\cmd.exe

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

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

Suspicious behavior: MapViewOfSection

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

Processes

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

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

C:\Windows\SysWOW64\cmd.exe

C:\Windows\SysWOW64\cmd.exe

C:\Windows\SysWOW64\explorer.exe

C:\Windows\SysWOW64\explorer.exe

Network

Country Destination Domain Proto
FR 213.5.130.58:443 tcp

Files

memory/1336-0-0x00000000743F0000-0x0000000074564000-memory.dmp

memory/1336-1-0x00000000772F0000-0x0000000077499000-memory.dmp

memory/1336-12-0x0000000074402000-0x0000000074404000-memory.dmp

memory/1336-13-0x00000000743F0000-0x0000000074564000-memory.dmp

memory/1336-14-0x00000000743F0000-0x0000000074564000-memory.dmp

memory/1336-16-0x0000000000400000-0x000000000064B000-memory.dmp

memory/1336-22-0x0000000061E00000-0x0000000061ECA000-memory.dmp

memory/1256-25-0x00000000743F0000-0x0000000074564000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\c02c2a04

MD5 275d45ca1269893331ac3d83b9c5cb9d
SHA1 6887f89ba78b88ef94f6178d6e3634697d70d503
SHA256 67bbe46350edfd5a66821430a5c70adba4d72ee25e270630fc0adcaa6861818d
SHA512 1e88019cd253ddcf7fcd88bacc22494a6fe0b10748b3775e6c8dd8283354c2e8ce9c9348c15c590c19b6bd98f07c60a0f49e0c8fb964539a6e203be8fadb8c83

memory/1336-23-0x0000000050310000-0x0000000050349000-memory.dmp

memory/1336-21-0x0000000057800000-0x0000000057812000-memory.dmp

memory/1336-20-0x0000000050120000-0x000000005030D000-memory.dmp

memory/1336-19-0x0000000057000000-0x000000005703F000-memory.dmp

memory/1336-18-0x0000000059800000-0x000000005986E000-memory.dmp

memory/1336-17-0x0000000050000000-0x0000000050116000-memory.dmp

memory/1256-26-0x00000000772F0000-0x0000000077499000-memory.dmp

memory/1256-71-0x00000000743F0000-0x0000000074564000-memory.dmp

memory/1256-72-0x00000000743F0000-0x0000000074564000-memory.dmp

memory/1256-74-0x00000000743F0000-0x0000000074564000-memory.dmp

memory/3032-75-0x00000000772F0000-0x0000000077499000-memory.dmp

memory/3032-76-0x0000000000080000-0x0000000000103000-memory.dmp

memory/3032-80-0x0000000000080000-0x0000000000103000-memory.dmp

memory/3032-82-0x0000000000080000-0x0000000000103000-memory.dmp

memory/3032-83-0x0000000000080000-0x0000000000103000-memory.dmp

memory/3032-84-0x0000000000080000-0x0000000000103000-memory.dmp

memory/3032-85-0x0000000000080000-0x0000000000103000-memory.dmp

memory/3032-86-0x0000000000080000-0x0000000000103000-memory.dmp

memory/3032-87-0x0000000000080000-0x0000000000103000-memory.dmp

memory/3032-88-0x0000000000080000-0x0000000000103000-memory.dmp

memory/3032-89-0x0000000000080000-0x0000000000103000-memory.dmp

memory/3032-90-0x0000000000080000-0x0000000000103000-memory.dmp

memory/3032-91-0x0000000000080000-0x0000000000103000-memory.dmp

Analysis: behavioral13

Detonation Overview

Submitted

2024-07-21 13:45

Reported

2024-07-21 13:48

Platform

win7-20240704-en

Max time kernel

140s

Max time network

118s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\sqlite3.dll,#1

Signatures

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\sqlite3.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\sqlite3.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2504 -s 224

Network

N/A

Files

memory/2504-0-0x0000000061E00000-0x0000000061ECA000-memory.dmp

Analysis: behavioral15

Detonation Overview

Submitted

2024-07-21 13:45

Reported

2024-07-21 13:48

Platform

win7-20240704-en

Max time kernel

13s

Max time network

19s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\vcl120.dll,#1

Signatures

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2432 wrote to memory of 2608 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2432 wrote to memory of 2608 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2432 wrote to memory of 2608 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2432 wrote to memory of 2608 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2432 wrote to memory of 2608 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2432 wrote to memory of 2608 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2432 wrote to memory of 2608 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\vcl120.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\vcl120.dll,#1

Network

N/A

Files

N/A

Analysis: behavioral16

Detonation Overview

Submitted

2024-07-21 13:45

Reported

2024-07-21 13:48

Platform

win10v2004-20240709-en

Max time kernel

149s

Max time network

150s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\vcl120.dll,#1

Signatures

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1796 wrote to memory of 2664 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1796 wrote to memory of 2664 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1796 wrote to memory of 2664 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\vcl120.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\vcl120.dll,#1

Network

Country Destination Domain Proto
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 13.107.21.237:443 g.bing.com tcp
US 8.8.8.8:53 74.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 237.21.107.13.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.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 11.227.111.52.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 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp
US 8.8.8.8:53 udp

Files

N/A

Analysis: behavioral14

Detonation Overview

Submitted

2024-07-21 13:45

Reported

2024-07-21 13:48

Platform

win10v2004-20240709-en

Max time kernel

140s

Max time network

140s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\sqlite3.dll,#1

Signatures

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\rundll32.exe

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2488 wrote to memory of 1128 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2488 wrote to memory of 1128 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2488 wrote to memory of 1128 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\sqlite3.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\sqlite3.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1128 -ip 1128

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1128 -s 600

Network

Country Destination Domain Proto
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 22.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 147.142.123.92.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 29.243.111.52.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 8.8.8.8:53 205.47.74.20.in-addr.arpa udp

Files

memory/1128-0-0x0000000061E00000-0x0000000061ECA000-memory.dmp

Analysis: behavioral3

Detonation Overview

Submitted

2024-07-21 13:45

Reported

2024-07-21 13:48

Platform

win7-20240705-en

Max time kernel

119s

Max time network

121s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\datastate.dll,#1

Signatures

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2872 wrote to memory of 2912 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2872 wrote to memory of 2912 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2872 wrote to memory of 2912 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2872 wrote to memory of 2912 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2872 wrote to memory of 2912 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2872 wrote to memory of 2912 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2872 wrote to memory of 2912 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\datastate.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\datastate.dll,#1

Network

N/A

Files

N/A

Analysis: behavioral4

Detonation Overview

Submitted

2024-07-21 13:45

Reported

2024-07-21 13:48

Platform

win10v2004-20240709-en

Max time kernel

149s

Max time network

152s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\datastate.dll,#1

Signatures

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\rundll32.exe

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4688 wrote to memory of 3696 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4688 wrote to memory of 3696 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4688 wrote to memory of 3696 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\datastate.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\datastate.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3696 -ip 3696

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3696 -s 612

Network

Country Destination Domain Proto
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 73.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.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 10.27.171.150.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 15.173.189.20.in-addr.arpa udp

Files

N/A

Analysis: behavioral10

Detonation Overview

Submitted

2024-07-21 13:45

Reported

2024-07-21 13:48

Platform

win10v2004-20240709-en

Max time kernel

140s

Max time network

144s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\madexcept_.dll,#1

Signatures

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4864 wrote to memory of 4956 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4864 wrote to memory of 4956 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4864 wrote to memory of 4956 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\madexcept_.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\madexcept_.dll,#1

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
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 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 31.243.111.52.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 10.27.171.150.in-addr.arpa udp

Files

memory/4956-0-0x0000000059800000-0x000000005986E000-memory.dmp

memory/4956-4-0x0000000050120000-0x000000005030D000-memory.dmp

memory/4956-1-0x0000000050000000-0x0000000050116000-memory.dmp

memory/4956-3-0x0000000057800000-0x0000000057812000-memory.dmp

memory/4956-2-0x0000000057000000-0x000000005703F000-memory.dmp

Analysis: behavioral12

Detonation Overview

Submitted

2024-07-21 13:45

Reported

2024-07-21 13:48

Platform

win10v2004-20240709-en

Max time kernel

141s

Max time network

128s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\rtl120.dll,#1

Signatures

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2832 wrote to memory of 5000 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2832 wrote to memory of 5000 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2832 wrote to memory of 5000 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\rtl120.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\rtl120.dll,#1

Network

Country Destination Domain Proto
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 71.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 192.142.123.92.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 29.243.111.52.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 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 10.28.171.150.in-addr.arpa udp

Files

N/A

Analysis: behavioral18

Detonation Overview

Submitted

2024-07-21 13:45

Reported

2024-07-21 13:48

Platform

win10v2004-20240709-en

Max time kernel

93s

Max time network

142s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\vclx120.dll,#1

Signatures

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\rundll32.exe

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3112 wrote to memory of 4288 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3112 wrote to memory of 4288 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3112 wrote to memory of 4288 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\vclx120.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\vclx120.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4288 -ip 4288

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4288 -s 680

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 183.142.211.20.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 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 76.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.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 8.8.8.8:53 192.142.123.92.in-addr.arpa udp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp

Files

memory/4288-2-0x0000000050120000-0x000000005030D000-memory.dmp

memory/4288-1-0x0000000050000000-0x0000000050116000-memory.dmp

memory/4288-0-0x0000000050310000-0x0000000050349000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-21 13:45

Reported

2024-07-21 13:48

Platform

win10v2004-20240709-en

Max time kernel

148s

Max time network

146s

Command Line

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

Signatures

Remcos

rat remcos

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 4236 set thread context of 3644 N/A C:\Users\Admin\AppData\Local\Temp\Setup.exe C:\Windows\SysWOW64\cmd.exe

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

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

Suspicious behavior: MapViewOfSection

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

Processes

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

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

C:\Windows\SysWOW64\cmd.exe

C:\Windows\SysWOW64\cmd.exe

C:\Windows\SysWOW64\explorer.exe

C:\Windows\SysWOW64\explorer.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 71.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
FR 213.5.130.58:443 tcp
US 8.8.8.8:53 58.130.5.213.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.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

Files

memory/4236-0-0x0000000074D20000-0x0000000074E9B000-memory.dmp

memory/4236-1-0x00007FFD383D0000-0x00007FFD385C5000-memory.dmp

memory/4236-12-0x0000000074D32000-0x0000000074D34000-memory.dmp

memory/4236-13-0x0000000074D20000-0x0000000074E9B000-memory.dmp

memory/4236-14-0x0000000074D20000-0x0000000074E9B000-memory.dmp

memory/4236-18-0x0000000050000000-0x0000000050116000-memory.dmp

memory/4236-22-0x0000000061E00000-0x0000000061ECA000-memory.dmp

memory/3644-25-0x0000000074D20000-0x0000000074E9B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\9b28532

MD5 ca7c312cdef3d6510b25561d866c67d0
SHA1 2e429d0750aed11a7072ac496d0a0f33e36ab955
SHA256 38a0e566c303c8ea3a43e2e210a6b622a5bf50cd898cef1f5130175c01f8ed73
SHA512 cf4896901f0d900df89122e9ff8fc757e7ba29ade25ab9ecda8b291bc18aaaa217008bd1654424d2810c3e336387c49358b92d60093fb5cc2bb42c2f050a5fb1

memory/4236-21-0x0000000050120000-0x000000005030D000-memory.dmp

memory/4236-20-0x0000000057800000-0x0000000057812000-memory.dmp

memory/4236-19-0x0000000057000000-0x000000005703F000-memory.dmp

memory/4236-17-0x0000000059800000-0x000000005986E000-memory.dmp

memory/4236-23-0x0000000050310000-0x0000000050349000-memory.dmp

memory/4236-16-0x0000000000400000-0x000000000064B000-memory.dmp

memory/3644-26-0x00007FFD383D0000-0x00007FFD385C5000-memory.dmp

memory/3644-28-0x0000000074D20000-0x0000000074E9B000-memory.dmp

memory/3644-29-0x0000000074D20000-0x0000000074E9B000-memory.dmp

memory/3644-31-0x0000000074D20000-0x0000000074E9B000-memory.dmp

memory/1004-32-0x00007FFD383D0000-0x00007FFD385C5000-memory.dmp

memory/1004-33-0x0000000000400000-0x0000000000483000-memory.dmp

memory/1004-36-0x0000000000CF3000-0x0000000000CFB000-memory.dmp

memory/1004-37-0x0000000000400000-0x0000000000483000-memory.dmp

memory/1004-39-0x0000000000400000-0x0000000000483000-memory.dmp

memory/1004-40-0x0000000000400000-0x0000000000483000-memory.dmp

memory/1004-41-0x0000000000400000-0x0000000000483000-memory.dmp

memory/1004-42-0x0000000000400000-0x0000000000483000-memory.dmp

memory/1004-43-0x0000000000400000-0x0000000000483000-memory.dmp

memory/1004-44-0x0000000000400000-0x0000000000483000-memory.dmp

memory/1004-45-0x0000000000400000-0x0000000000483000-memory.dmp

memory/1004-46-0x0000000000400000-0x0000000000483000-memory.dmp

memory/1004-47-0x0000000000400000-0x0000000000483000-memory.dmp

Analysis: behavioral5

Detonation Overview

Submitted

2024-07-21 13:45

Reported

2024-07-21 13:48

Platform

win7-20240708-en

Max time kernel

117s

Max time network

119s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\madbasic_.dll,#1

Signatures

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2856 wrote to memory of 2752 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2856 wrote to memory of 2752 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2856 wrote to memory of 2752 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2856 wrote to memory of 2752 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2856 wrote to memory of 2752 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2856 wrote to memory of 2752 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2856 wrote to memory of 2752 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\madbasic_.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\madbasic_.dll,#1

Network

N/A

Files

memory/2752-0-0x0000000057000000-0x000000005703F000-memory.dmp

memory/2752-1-0x0000000050000000-0x0000000050116000-memory.dmp

memory/2752-2-0x0000000050120000-0x000000005030D000-memory.dmp

Analysis: behavioral6

Detonation Overview

Submitted

2024-07-21 13:45

Reported

2024-07-21 13:48

Platform

win10v2004-20240709-en

Max time kernel

148s

Max time network

152s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\madbasic_.dll,#1

Signatures

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4532 wrote to memory of 2668 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4532 wrote to memory of 2668 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4532 wrote to memory of 2668 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\madbasic_.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\madbasic_.dll,#1

Network

Country Destination Domain Proto
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 64.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 31.243.111.52.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 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 208.143.182.52.in-addr.arpa udp

Files

memory/2668-1-0x0000000050000000-0x0000000050116000-memory.dmp

memory/2668-2-0x0000000050120000-0x000000005030D000-memory.dmp

memory/2668-0-0x0000000057000000-0x000000005703F000-memory.dmp

Analysis: behavioral7

Detonation Overview

Submitted

2024-07-21 13:45

Reported

2024-07-21 13:48

Platform

win7-20240705-en

Max time kernel

122s

Max time network

123s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\maddisAsm_.dll,#1

Signatures

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2772 wrote to memory of 2784 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2772 wrote to memory of 2784 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2772 wrote to memory of 2784 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2772 wrote to memory of 2784 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2772 wrote to memory of 2784 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2772 wrote to memory of 2784 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2772 wrote to memory of 2784 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\maddisAsm_.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\maddisAsm_.dll,#1

Network

N/A

Files

memory/2784-0-0x0000000057800000-0x0000000057812000-memory.dmp

memory/2784-2-0x0000000057000000-0x000000005703F000-memory.dmp

memory/2784-1-0x0000000050000000-0x0000000050116000-memory.dmp

memory/2784-3-0x0000000050120000-0x000000005030D000-memory.dmp

Analysis: behavioral17

Detonation Overview

Submitted

2024-07-21 13:45

Reported

2024-07-21 13:48

Platform

win7-20240704-en

Max time kernel

140s

Max time network

124s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\vclx120.dll,#1

Signatures

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\vclx120.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\vclx120.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2196 -s 268

Network

N/A

Files

memory/2196-0-0x0000000050310000-0x0000000050349000-memory.dmp

memory/2196-2-0x0000000050120000-0x000000005030D000-memory.dmp

memory/2196-1-0x0000000050000000-0x0000000050116000-memory.dmp