Malware Analysis Report

2024-11-13 18:48

Sample ID 240725-j2qwsazgld
Target MalwareBazaar.7
SHA256 1bfbe3e1ad1988b74e65a9675a05c796d71fa728440afbcccc7afd12c92104ef
Tags
remcos remotehost discovery evasion persistence rat trojan
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

1bfbe3e1ad1988b74e65a9675a05c796d71fa728440afbcccc7afd12c92104ef

Threat Level: Known bad

The file MalwareBazaar.7 was found to be: Known bad.

Malicious Activity Summary

remcos remotehost discovery evasion persistence rat trojan

UAC bypass

Remcos

Executes dropped EXE

Loads dropped DLL

Checks computer location settings

Checks whether UAC is enabled

Adds Run key to start application

AutoIT Executable

Suspicious use of NtCreateThreadExHideFromDebugger

Unsigned PE

System Location Discovery: System Language Discovery

Enumerates physical storage devices

Modifies registry class

System policy modification

Suspicious use of WriteProcessMemory

Opens file in notepad (likely ransom note)

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-07-25 08:10

Signatures

AutoIT Executable

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

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-25 08:10

Reported

2024-07-25 08:12

Platform

win7-20240708-en

Max time kernel

149s

Max time network

149s

Command Line

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

Signatures

Remcos

rat remcos

UAC bypass

evasion trojan
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0" C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Windows\CurrentVersion\Run\*madrePuta = "rundll32.exe C:\\Users\\Admin\\Documents\\ChromeUpdater.dll,EntryPoint" C:\Windows\SysWOW64\reg.exe N/A

Checks whether UAC is enabled

evasion trojan
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe N/A

AutoIT Executable

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

Suspicious use of NtCreateThreadExHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\START.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:\Windows\SysWOW64\cmd.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\reg.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Roaming\START.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\RarSFX0\oks.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\NOTEPAD.EXE N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Roaming\START.EXE N/A

Opens file in notepad (likely ransom note)

ransomware
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\NOTEPAD.EXE N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2380 wrote to memory of 2388 N/A C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe C:\Users\Admin\AppData\Local\Temp\651\651.exe
PID 2380 wrote to memory of 2388 N/A C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe C:\Users\Admin\AppData\Local\Temp\651\651.exe
PID 2380 wrote to memory of 2388 N/A C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe C:\Users\Admin\AppData\Local\Temp\651\651.exe
PID 2380 wrote to memory of 2388 N/A C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe C:\Users\Admin\AppData\Local\Temp\651\651.exe
PID 2388 wrote to memory of 2720 N/A C:\Users\Admin\AppData\Local\Temp\651\651.exe C:\Users\Admin\AppData\Local\Temp\RarSFX0\oks.exe
PID 2388 wrote to memory of 2720 N/A C:\Users\Admin\AppData\Local\Temp\651\651.exe C:\Users\Admin\AppData\Local\Temp\RarSFX0\oks.exe
PID 2388 wrote to memory of 2720 N/A C:\Users\Admin\AppData\Local\Temp\651\651.exe C:\Users\Admin\AppData\Local\Temp\RarSFX0\oks.exe
PID 2388 wrote to memory of 2720 N/A C:\Users\Admin\AppData\Local\Temp\651\651.exe C:\Users\Admin\AppData\Local\Temp\RarSFX0\oks.exe
PID 2720 wrote to memory of 2072 N/A C:\Users\Admin\AppData\Local\Temp\RarSFX0\oks.exe C:\Windows\SysWOW64\NOTEPAD.EXE
PID 2720 wrote to memory of 2072 N/A C:\Users\Admin\AppData\Local\Temp\RarSFX0\oks.exe C:\Windows\SysWOW64\NOTEPAD.EXE
PID 2720 wrote to memory of 2072 N/A C:\Users\Admin\AppData\Local\Temp\RarSFX0\oks.exe C:\Windows\SysWOW64\NOTEPAD.EXE
PID 2720 wrote to memory of 2072 N/A C:\Users\Admin\AppData\Local\Temp\RarSFX0\oks.exe C:\Windows\SysWOW64\NOTEPAD.EXE
PID 2720 wrote to memory of 1324 N/A C:\Users\Admin\AppData\Local\Temp\RarSFX0\oks.exe C:\Users\Admin\AppData\Roaming\START.EXE
PID 2720 wrote to memory of 1324 N/A C:\Users\Admin\AppData\Local\Temp\RarSFX0\oks.exe C:\Users\Admin\AppData\Roaming\START.EXE
PID 2720 wrote to memory of 1324 N/A C:\Users\Admin\AppData\Local\Temp\RarSFX0\oks.exe C:\Users\Admin\AppData\Roaming\START.EXE
PID 2720 wrote to memory of 1324 N/A C:\Users\Admin\AppData\Local\Temp\RarSFX0\oks.exe C:\Users\Admin\AppData\Roaming\START.EXE
PID 1324 wrote to memory of 2256 N/A C:\Users\Admin\AppData\Roaming\START.EXE C:\Users\Admin\AppData\Roaming\START.EXE
PID 1324 wrote to memory of 2256 N/A C:\Users\Admin\AppData\Roaming\START.EXE C:\Users\Admin\AppData\Roaming\START.EXE
PID 1324 wrote to memory of 2256 N/A C:\Users\Admin\AppData\Roaming\START.EXE C:\Users\Admin\AppData\Roaming\START.EXE
PID 1324 wrote to memory of 2256 N/A C:\Users\Admin\AppData\Roaming\START.EXE C:\Users\Admin\AppData\Roaming\START.EXE
PID 1324 wrote to memory of 2256 N/A C:\Users\Admin\AppData\Roaming\START.EXE C:\Users\Admin\AppData\Roaming\START.EXE
PID 1324 wrote to memory of 2256 N/A C:\Users\Admin\AppData\Roaming\START.EXE C:\Users\Admin\AppData\Roaming\START.EXE
PID 1324 wrote to memory of 2256 N/A C:\Users\Admin\AppData\Roaming\START.EXE C:\Users\Admin\AppData\Roaming\START.EXE
PID 1324 wrote to memory of 1964 N/A C:\Users\Admin\AppData\Roaming\START.EXE C:\Windows\SysWOW64\cmd.exe
PID 1324 wrote to memory of 1964 N/A C:\Users\Admin\AppData\Roaming\START.EXE C:\Windows\SysWOW64\cmd.exe
PID 1324 wrote to memory of 1964 N/A C:\Users\Admin\AppData\Roaming\START.EXE C:\Windows\SysWOW64\cmd.exe
PID 1324 wrote to memory of 1964 N/A C:\Users\Admin\AppData\Roaming\START.EXE C:\Windows\SysWOW64\cmd.exe
PID 1964 wrote to memory of 2776 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\reg.exe
PID 1964 wrote to memory of 2776 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\reg.exe
PID 1964 wrote to memory of 2776 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\reg.exe
PID 1964 wrote to memory of 2776 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\reg.exe
PID 2388 wrote to memory of 1788 N/A C:\Users\Admin\AppData\Local\Temp\651\651.exe C:\Windows\system32\WerFault.exe
PID 2388 wrote to memory of 1788 N/A C:\Users\Admin\AppData\Local\Temp\651\651.exe C:\Windows\system32\WerFault.exe
PID 2388 wrote to memory of 1788 N/A C:\Users\Admin\AppData\Local\Temp\651\651.exe C:\Windows\system32\WerFault.exe

System policy modification

evasion
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0" C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" 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\651\651.exe

"C:\Users\Admin\AppData\Local\Temp\651\651.exe"

C:\Users\Admin\AppData\Local\Temp\RarSFX0\oks.exe

"C:\Users\Admin\AppData\Local\Temp\RarSFX0\oks.exe"

C:\Windows\SysWOW64\NOTEPAD.EXE

"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\1040.INF

C:\Users\Admin\AppData\Roaming\START.EXE

"C:\Users\Admin\AppData\Roaming\START.EXE"

C:\Users\Admin\AppData\Roaming\START.EXE

"C:\Users\Admin\AppData\Roaming\START.EXE"

C:\Windows\SysWOW64\cmd.exe

cmd.exe /C reg add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "*madrePuta" /t REG_SZ /d "rundll32.exe C:\Users\Admin\Documents\ChromeUpdater.dll",EntryPoint /f & exit

C:\Windows\SysWOW64\reg.exe

reg add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "*madrePuta" /t REG_SZ /d "rundll32.exe C:\Users\Admin\Documents\ChromeUpdater.dll",EntryPoint /f

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -u -p 2388 -s 164

Network

Country Destination Domain Proto
NL 5.253.86.233:2404 tcp
NL 5.253.86.233:2404 tcp
NL 5.253.86.233:2404 tcp
NL 5.253.86.233:2404 tcp
NL 5.253.86.233:2404 tcp
NL 5.253.86.233:2404 tcp
NL 5.253.86.233:2404 tcp
NL 5.253.86.233:2404 tcp
NL 5.253.86.233:2404 tcp
NL 5.253.86.233:2404 tcp
NL 5.253.86.233:2404 tcp
NL 5.253.86.233:2404 tcp
NL 5.253.86.233:2404 tcp
NL 5.253.86.233:2404 tcp
NL 5.253.86.233:2404 tcp
NL 5.253.86.233:2404 tcp
NL 5.253.86.233:2404 tcp
NL 5.253.86.233:2404 tcp
NL 5.253.86.233:2404 tcp
NL 5.253.86.233:2404 tcp
NL 5.253.86.233:2404 tcp
NL 5.253.86.233:2404 tcp
NL 5.253.86.233:2404 tcp
NL 5.253.86.233:2404 tcp
NL 5.253.86.233:2404 tcp
NL 5.253.86.233:2404 tcp
NL 5.253.86.233:2404 tcp
NL 5.253.86.233:2404 tcp
NL 5.253.86.233:2404 tcp
NL 5.253.86.233:2404 tcp
NL 5.253.86.233:2404 tcp
NL 5.253.86.233:2404 tcp
NL 5.253.86.233:2404 tcp
NL 5.253.86.233:2404 tcp
NL 5.253.86.233:2404 tcp
NL 5.253.86.233:2404 tcp
NL 5.253.86.233:2404 tcp
NL 5.253.86.233:2404 tcp

Files

\Users\Admin\AppData\Local\Temp\651\651.exe

MD5 186b6bf2fd5d1f3608f8c568a33aba2b
SHA1 03ac334f463e4125f0498cbe3a017c4e0dc9eec3
SHA256 82155ffb1e678544d90c4d3e7973029fa44936edc52e41bd99f22a51846e7755
SHA512 1bede595abf9ba44b0160f07a5a5b4de26b4dce9b5590c45af071d3d11565a92781356d12e127f732d1814f3b64feb8fc8e9e5d7366eee954cd450a919e9e9d3

memory/2380-18-0x0000000000C40000-0x0000000001BAA000-memory.dmp

memory/2388-23-0x0000000003210000-0x0000000003220000-memory.dmp

memory/2380-34-0x0000000000C40000-0x0000000001BAA000-memory.dmp

\Users\Admin\AppData\Roaming\START.EXE

MD5 8fefb5372a86943f8468f348df360a3e
SHA1 df18d766996b41e5fd678cdbb319b97fd1ca58b4
SHA256 a75db91dc62805ba25ce77ada06a10c6e202e698141f0673936342b3956ad734
SHA512 e9747d64401828db590093550f05c7014ae417025959925d29983fbd8b219cb733febb83926fcd90f07213fb2e69d582f3837e5321e809c08760710e950510cf

memory/1324-47-0x0000000010000000-0x00000000102D7000-memory.dmp

\Users\Admin\AppData\Roaming\BORLNDMM.DLL

MD5 0a59ba1ec5a791c0891678f3ac02852a
SHA1 fa03a911a3bd61ecd1b0ddd002ba12b629481eab
SHA256 334965e87da4a0cc19e62a7a773fdc7a23013162196e242690377ecb315549c0
SHA512 c8d366c32dd54ea7abe37332fa00dba3e94851ffedc295b828717e66e4cf0a2e012cf17a72c4a2d66d56cd2d0e0a3efc47fef36f4232a95a2095986fc40ba6f2

memory/1324-56-0x0000000010000000-0x00000000102D7000-memory.dmp

memory/2256-54-0x00000000003E0000-0x00000000003E1000-memory.dmp

memory/2256-52-0x00000000003E0000-0x00000000003E1000-memory.dmp

memory/2256-51-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2256-49-0x0000000000350000-0x00000000003D2000-memory.dmp

memory/2256-57-0x0000000000350000-0x00000000003D2000-memory.dmp

memory/2256-59-0x0000000000350000-0x00000000003D2000-memory.dmp

memory/2256-58-0x0000000000350000-0x00000000003D2000-memory.dmp

memory/2256-61-0x0000000000350000-0x00000000003D2000-memory.dmp

memory/1324-62-0x0000000000010000-0x00000000001A0000-memory.dmp

memory/2256-63-0x0000000000350000-0x00000000003D2000-memory.dmp

memory/2256-64-0x0000000000350000-0x00000000003D2000-memory.dmp

memory/2256-65-0x0000000000350000-0x00000000003D2000-memory.dmp

memory/2256-66-0x0000000000350000-0x00000000003D2000-memory.dmp

memory/2256-67-0x0000000000350000-0x00000000003D2000-memory.dmp

memory/2256-72-0x0000000000350000-0x00000000003D2000-memory.dmp

memory/2256-74-0x0000000000350000-0x00000000003D2000-memory.dmp

memory/2256-75-0x0000000000350000-0x00000000003D2000-memory.dmp

memory/2256-76-0x0000000000350000-0x00000000003D2000-memory.dmp

memory/2256-77-0x0000000000350000-0x00000000003D2000-memory.dmp

memory/2256-78-0x0000000000350000-0x00000000003D2000-memory.dmp

memory/2256-79-0x0000000000350000-0x00000000003D2000-memory.dmp

memory/2256-80-0x0000000000350000-0x00000000003D2000-memory.dmp

memory/2256-81-0x0000000000350000-0x00000000003D2000-memory.dmp

memory/2256-82-0x0000000000350000-0x00000000003D2000-memory.dmp

memory/2256-83-0x0000000000350000-0x00000000003D2000-memory.dmp

memory/2256-84-0x0000000000350000-0x00000000003D2000-memory.dmp

memory/2256-85-0x0000000000350000-0x00000000003D2000-memory.dmp

memory/2256-86-0x0000000000350000-0x00000000003D2000-memory.dmp

memory/2256-87-0x0000000000350000-0x00000000003D2000-memory.dmp

memory/2256-88-0x0000000000350000-0x00000000003D2000-memory.dmp

memory/2256-89-0x0000000000350000-0x00000000003D2000-memory.dmp

memory/2256-90-0x0000000000350000-0x00000000003D2000-memory.dmp

memory/2256-91-0x0000000000350000-0x00000000003D2000-memory.dmp

memory/2256-92-0x0000000000350000-0x00000000003D2000-memory.dmp

memory/2256-93-0x0000000000350000-0x00000000003D2000-memory.dmp

memory/2256-94-0x0000000000350000-0x00000000003D2000-memory.dmp

memory/2256-95-0x0000000000350000-0x00000000003D2000-memory.dmp

memory/2256-96-0x0000000000350000-0x00000000003D2000-memory.dmp

memory/2256-97-0x0000000000350000-0x00000000003D2000-memory.dmp

memory/2256-98-0x0000000000350000-0x00000000003D2000-memory.dmp

memory/2256-99-0x0000000000350000-0x00000000003D2000-memory.dmp

memory/2256-100-0x0000000000350000-0x00000000003D2000-memory.dmp

memory/2256-101-0x0000000000350000-0x00000000003D2000-memory.dmp

memory/2256-102-0x0000000000350000-0x00000000003D2000-memory.dmp

memory/2256-103-0x0000000000350000-0x00000000003D2000-memory.dmp

memory/2256-104-0x0000000000350000-0x00000000003D2000-memory.dmp

memory/2256-105-0x0000000000350000-0x00000000003D2000-memory.dmp

memory/2256-106-0x0000000000350000-0x00000000003D2000-memory.dmp

memory/2256-107-0x0000000000350000-0x00000000003D2000-memory.dmp

memory/2256-108-0x0000000000350000-0x00000000003D2000-memory.dmp

memory/2256-109-0x0000000000350000-0x00000000003D2000-memory.dmp

memory/2256-110-0x0000000000350000-0x00000000003D2000-memory.dmp

memory/2256-111-0x0000000000350000-0x00000000003D2000-memory.dmp

memory/2256-112-0x0000000000350000-0x00000000003D2000-memory.dmp

memory/2256-113-0x0000000000350000-0x00000000003D2000-memory.dmp

memory/2256-114-0x0000000000350000-0x00000000003D2000-memory.dmp

memory/2256-115-0x0000000000350000-0x00000000003D2000-memory.dmp

memory/2256-116-0x0000000000350000-0x00000000003D2000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-25 08:10

Reported

2024-07-25 08:12

Platform

win10v2004-20240709-en

Max time kernel

149s

Max time network

151s

Command Line

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

Signatures

Remcos

rat remcos

UAC bypass

evasion trojan
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0" C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3419463127-3903270268-2580331543-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\RarSFX0\oks.exe N/A
Key value queried \REGISTRY\USER\S-1-5-21-3419463127-3903270268-2580331543-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe N/A
Key value queried \REGISTRY\USER\S-1-5-21-3419463127-3903270268-2580331543-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\651\651.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\START.EXE N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3419463127-3903270268-2580331543-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\*madrePuta = "rundll32.exe C:\\Users\\Admin\\Documents\\ChromeUpdater.dll,EntryPoint" C:\Windows\SysWOW64\reg.exe N/A

Checks whether UAC is enabled

evasion trojan
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe N/A

Suspicious use of NtCreateThreadExHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\START.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\MalwareBazaar.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\RarSFX0\oks.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\NOTEPAD.EXE N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Roaming\START.EXE N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Roaming\START.EXE N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\cmd.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\reg.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-3419463127-3903270268-2580331543-1000_Classes\Local Settings C:\Users\Admin\AppData\Local\Temp\RarSFX0\oks.exe N/A

Opens file in notepad (likely ransom note)

ransomware
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\NOTEPAD.EXE N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3324 wrote to memory of 2332 N/A C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe C:\Users\Admin\AppData\Local\Temp\651\651.exe
PID 3324 wrote to memory of 2332 N/A C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe C:\Users\Admin\AppData\Local\Temp\651\651.exe
PID 2332 wrote to memory of 3076 N/A C:\Users\Admin\AppData\Local\Temp\651\651.exe C:\Users\Admin\AppData\Local\Temp\RarSFX0\oks.exe
PID 2332 wrote to memory of 3076 N/A C:\Users\Admin\AppData\Local\Temp\651\651.exe C:\Users\Admin\AppData\Local\Temp\RarSFX0\oks.exe
PID 2332 wrote to memory of 3076 N/A C:\Users\Admin\AppData\Local\Temp\651\651.exe C:\Users\Admin\AppData\Local\Temp\RarSFX0\oks.exe
PID 3076 wrote to memory of 3996 N/A C:\Users\Admin\AppData\Local\Temp\RarSFX0\oks.exe C:\Windows\SysWOW64\NOTEPAD.EXE
PID 3076 wrote to memory of 3996 N/A C:\Users\Admin\AppData\Local\Temp\RarSFX0\oks.exe C:\Windows\SysWOW64\NOTEPAD.EXE
PID 3076 wrote to memory of 3996 N/A C:\Users\Admin\AppData\Local\Temp\RarSFX0\oks.exe C:\Windows\SysWOW64\NOTEPAD.EXE
PID 3076 wrote to memory of 432 N/A C:\Users\Admin\AppData\Local\Temp\RarSFX0\oks.exe C:\Users\Admin\AppData\Roaming\START.EXE
PID 3076 wrote to memory of 432 N/A C:\Users\Admin\AppData\Local\Temp\RarSFX0\oks.exe C:\Users\Admin\AppData\Roaming\START.EXE
PID 3076 wrote to memory of 432 N/A C:\Users\Admin\AppData\Local\Temp\RarSFX0\oks.exe C:\Users\Admin\AppData\Roaming\START.EXE
PID 432 wrote to memory of 2420 N/A C:\Users\Admin\AppData\Roaming\START.EXE C:\Users\Admin\AppData\Roaming\START.EXE
PID 432 wrote to memory of 2420 N/A C:\Users\Admin\AppData\Roaming\START.EXE C:\Users\Admin\AppData\Roaming\START.EXE
PID 432 wrote to memory of 2420 N/A C:\Users\Admin\AppData\Roaming\START.EXE C:\Users\Admin\AppData\Roaming\START.EXE
PID 432 wrote to memory of 2420 N/A C:\Users\Admin\AppData\Roaming\START.EXE C:\Users\Admin\AppData\Roaming\START.EXE
PID 432 wrote to memory of 2420 N/A C:\Users\Admin\AppData\Roaming\START.EXE C:\Users\Admin\AppData\Roaming\START.EXE
PID 432 wrote to memory of 2420 N/A C:\Users\Admin\AppData\Roaming\START.EXE C:\Users\Admin\AppData\Roaming\START.EXE
PID 432 wrote to memory of 768 N/A C:\Users\Admin\AppData\Roaming\START.EXE C:\Windows\SysWOW64\cmd.exe
PID 432 wrote to memory of 768 N/A C:\Users\Admin\AppData\Roaming\START.EXE C:\Windows\SysWOW64\cmd.exe
PID 432 wrote to memory of 768 N/A C:\Users\Admin\AppData\Roaming\START.EXE C:\Windows\SysWOW64\cmd.exe
PID 768 wrote to memory of 4680 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\reg.exe
PID 768 wrote to memory of 4680 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\reg.exe
PID 768 wrote to memory of 4680 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\reg.exe

System policy modification

evasion
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0" C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" 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\651\651.exe

"C:\Users\Admin\AppData\Local\Temp\651\651.exe"

C:\Users\Admin\AppData\Local\Temp\RarSFX0\oks.exe

"C:\Users\Admin\AppData\Local\Temp\RarSFX0\oks.exe"

C:\Windows\SysWOW64\NOTEPAD.EXE

"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\1040.INF

C:\Users\Admin\AppData\Roaming\START.EXE

"C:\Users\Admin\AppData\Roaming\START.EXE"

C:\Users\Admin\AppData\Roaming\START.EXE

"C:\Users\Admin\AppData\Roaming\START.EXE"

C:\Windows\SysWOW64\cmd.exe

cmd.exe /C reg add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "*madrePuta" /t REG_SZ /d "rundll32.exe C:\Users\Admin\Documents\ChromeUpdater.dll",EntryPoint /f & exit

C:\Windows\SysWOW64\reg.exe

reg add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "*madrePuta" /t REG_SZ /d "rundll32.exe C:\Users\Admin\Documents\ChromeUpdater.dll",EntryPoint /f

Network

Country Destination Domain Proto
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 136.32.126.40.in-addr.arpa udp
NL 5.253.86.233:2404 tcp
NL 5.253.86.233:2404 tcp
NL 5.253.86.233:2404 tcp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
NL 5.253.86.233:2404 tcp
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
NL 5.253.86.233:2404 tcp
NL 5.253.86.233:2404 tcp
NL 5.253.86.233:2404 tcp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
NL 5.253.86.233:2404 tcp
NL 5.253.86.233:2404 tcp
NL 5.253.86.233:2404 tcp
NL 5.253.86.233:2404 tcp
NL 5.253.86.233:2404 tcp
NL 5.253.86.233:2404 tcp
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
NL 5.253.86.233:2404 tcp
NL 5.253.86.233:2404 tcp
NL 5.253.86.233:2404 tcp
NL 5.253.86.233:2404 tcp
NL 5.253.86.233:2404 tcp
NL 5.253.86.233:2404 tcp
NL 5.253.86.233:2404 tcp
NL 5.253.86.233:2404 tcp
NL 5.253.86.233:2404 tcp
NL 5.253.86.233:2404 tcp
NL 5.253.86.233:2404 tcp
NL 5.253.86.233:2404 tcp
NL 5.253.86.233:2404 tcp
NL 5.253.86.233:2404 tcp

Files

C:\Users\Admin\AppData\Local\Temp\651\651.exe

MD5 186b6bf2fd5d1f3608f8c568a33aba2b
SHA1 03ac334f463e4125f0498cbe3a017c4e0dc9eec3
SHA256 82155ffb1e678544d90c4d3e7973029fa44936edc52e41bd99f22a51846e7755
SHA512 1bede595abf9ba44b0160f07a5a5b4de26b4dce9b5590c45af071d3d11565a92781356d12e127f732d1814f3b64feb8fc8e9e5d7366eee954cd450a919e9e9d3

C:\Users\Admin\AppData\Roaming\borlndmm.dll

MD5 0a59ba1ec5a791c0891678f3ac02852a
SHA1 fa03a911a3bd61ecd1b0ddd002ba12b629481eab
SHA256 334965e87da4a0cc19e62a7a773fdc7a23013162196e242690377ecb315549c0
SHA512 c8d366c32dd54ea7abe37332fa00dba3e94851ffedc295b828717e66e4cf0a2e012cf17a72c4a2d66d56cd2d0e0a3efc47fef36f4232a95a2095986fc40ba6f2

C:\Users\Admin\AppData\Roaming\START.EXE

MD5 8fefb5372a86943f8468f348df360a3e
SHA1 df18d766996b41e5fd678cdbb319b97fd1ca58b4
SHA256 a75db91dc62805ba25ce77ada06a10c6e202e698141f0673936342b3956ad734
SHA512 e9747d64401828db590093550f05c7014ae417025959925d29983fbd8b219cb733febb83926fcd90f07213fb2e69d582f3837e5321e809c08760710e950510cf

memory/432-46-0x0000000010000000-0x00000000102D7000-memory.dmp

memory/2420-48-0x00000000005F0000-0x00000000005F1000-memory.dmp

memory/2420-55-0x0000000000560000-0x00000000005E2000-memory.dmp

memory/2420-56-0x0000000000560000-0x00000000005E2000-memory.dmp

memory/2420-54-0x0000000000560000-0x00000000005E2000-memory.dmp

memory/2420-52-0x0000000000560000-0x00000000005E2000-memory.dmp

memory/432-50-0x0000000010000000-0x00000000102D7000-memory.dmp

memory/2420-57-0x0000000000560000-0x00000000005E2000-memory.dmp

memory/432-58-0x0000000000010000-0x00000000001A0000-memory.dmp

memory/2420-59-0x0000000000560000-0x00000000005E2000-memory.dmp

memory/2420-60-0x0000000000560000-0x00000000005E2000-memory.dmp

memory/2420-61-0x0000000000560000-0x00000000005E2000-memory.dmp

memory/2420-62-0x0000000000560000-0x00000000005E2000-memory.dmp

memory/2420-63-0x0000000000560000-0x00000000005E2000-memory.dmp

memory/2420-64-0x0000000000560000-0x00000000005E2000-memory.dmp

memory/2420-65-0x0000000000560000-0x00000000005E2000-memory.dmp

memory/2420-66-0x0000000000560000-0x00000000005E2000-memory.dmp

memory/2420-67-0x0000000000560000-0x00000000005E2000-memory.dmp

memory/2420-68-0x0000000000560000-0x00000000005E2000-memory.dmp

memory/2420-69-0x0000000000560000-0x00000000005E2000-memory.dmp

memory/2420-70-0x0000000000560000-0x00000000005E2000-memory.dmp

memory/2420-71-0x0000000000560000-0x00000000005E2000-memory.dmp

memory/2420-72-0x0000000000560000-0x00000000005E2000-memory.dmp

memory/2420-73-0x0000000000560000-0x00000000005E2000-memory.dmp

memory/2420-74-0x0000000000560000-0x00000000005E2000-memory.dmp

memory/2420-75-0x0000000000560000-0x00000000005E2000-memory.dmp

memory/2420-76-0x0000000000560000-0x00000000005E2000-memory.dmp

memory/2420-77-0x0000000000560000-0x00000000005E2000-memory.dmp

memory/2420-78-0x0000000000560000-0x00000000005E2000-memory.dmp

memory/2420-79-0x0000000000560000-0x00000000005E2000-memory.dmp

memory/2420-80-0x0000000000560000-0x00000000005E2000-memory.dmp

memory/2420-81-0x0000000000560000-0x00000000005E2000-memory.dmp

memory/2420-82-0x0000000000560000-0x00000000005E2000-memory.dmp

memory/2420-83-0x0000000000560000-0x00000000005E2000-memory.dmp

memory/2420-84-0x0000000000560000-0x00000000005E2000-memory.dmp

memory/2420-85-0x0000000000560000-0x00000000005E2000-memory.dmp

memory/2420-86-0x0000000000560000-0x00000000005E2000-memory.dmp

memory/2420-87-0x0000000000560000-0x00000000005E2000-memory.dmp

memory/2420-88-0x0000000000560000-0x00000000005E2000-memory.dmp

memory/2420-89-0x0000000000560000-0x00000000005E2000-memory.dmp

memory/2420-90-0x0000000000560000-0x00000000005E2000-memory.dmp

memory/2420-91-0x0000000000560000-0x00000000005E2000-memory.dmp

memory/2420-92-0x0000000000560000-0x00000000005E2000-memory.dmp

memory/2420-93-0x0000000000560000-0x00000000005E2000-memory.dmp

memory/2420-94-0x0000000000560000-0x00000000005E2000-memory.dmp

memory/2420-95-0x0000000000560000-0x00000000005E2000-memory.dmp

memory/2420-96-0x0000000000560000-0x00000000005E2000-memory.dmp

memory/2420-97-0x0000000000560000-0x00000000005E2000-memory.dmp

memory/2420-98-0x0000000000560000-0x00000000005E2000-memory.dmp

memory/2420-99-0x0000000000560000-0x00000000005E2000-memory.dmp

memory/2420-100-0x0000000000560000-0x00000000005E2000-memory.dmp

memory/2420-101-0x0000000000560000-0x00000000005E2000-memory.dmp

memory/2420-102-0x0000000000560000-0x00000000005E2000-memory.dmp

memory/2420-103-0x0000000000560000-0x00000000005E2000-memory.dmp

memory/2420-104-0x0000000000560000-0x00000000005E2000-memory.dmp

memory/2420-105-0x0000000000560000-0x00000000005E2000-memory.dmp

memory/2420-106-0x0000000000560000-0x00000000005E2000-memory.dmp

memory/2420-107-0x0000000000560000-0x00000000005E2000-memory.dmp

memory/2420-108-0x0000000000560000-0x00000000005E2000-memory.dmp

memory/2420-109-0x0000000000560000-0x00000000005E2000-memory.dmp