Malware Analysis Report

2024-11-30 21:57

Sample ID 230208-v29vfadf27
Target 93A60B00B3933B1D036AA791E81EFE05249C5563384F2DDD04492B6BE6563583
SHA256 93a60b00b3933b1d036aa791e81efe05249c5563384f2ddd04492b6be6563583
Tags
formbook purecrypter gune downloader loader rat spyware stealer trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

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

93a60b00b3933b1d036aa791e81efe05249c5563384f2ddd04492b6be6563583

Threat Level: Known bad

The file 93A60B00B3933B1D036AA791E81EFE05249C5563384F2DDD04492B6BE6563583 was found to be: Known bad.

Malicious Activity Summary

formbook purecrypter gune downloader loader rat spyware stealer trojan

Formbook

Detect PureCrypter injector

PureCrypter

Formbook payload

Checks computer location settings

Suspicious use of SetThreadContext

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Suspicious use of FindShellTrayWindow

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: GetForegroundWindowSpam

Suspicious behavior: MapViewOfSection

Suspicious use of SendNotifyMessage

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-02-08 17:30

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2023-02-08 17:30

Reported

2023-02-08 17:33

Platform

win7-20221111-en

Max time kernel

151s

Max time network

133s

Command Line

C:\Windows\Explorer.EXE

Signatures

Detect PureCrypter injector

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

Formbook

trojan spyware stealer formbook

PureCrypter

loader downloader purecrypter

Formbook payload

rat
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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1700 set thread context of 1888 N/A C:\Users\Admin\AppData\Local\Temp\Payment-Advice.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 1888 set thread context of 1216 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe C:\Windows\Explorer.EXE
PID 1628 set thread context of 1216 N/A C:\Windows\SysWOW64\svchost.exe C:\Windows\Explorer.EXE

Enumerates physical storage devices

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Windows\Explorer.EXE N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Payment-Advice.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\svchost.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A

Suspicious use of SendNotifyMessage

Description Indicator Process Target
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1700 wrote to memory of 320 N/A C:\Users\Admin\AppData\Local\Temp\Payment-Advice.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 1700 wrote to memory of 320 N/A C:\Users\Admin\AppData\Local\Temp\Payment-Advice.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 1700 wrote to memory of 320 N/A C:\Users\Admin\AppData\Local\Temp\Payment-Advice.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 1700 wrote to memory of 320 N/A C:\Users\Admin\AppData\Local\Temp\Payment-Advice.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 1700 wrote to memory of 1888 N/A C:\Users\Admin\AppData\Local\Temp\Payment-Advice.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 1700 wrote to memory of 1888 N/A C:\Users\Admin\AppData\Local\Temp\Payment-Advice.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 1700 wrote to memory of 1888 N/A C:\Users\Admin\AppData\Local\Temp\Payment-Advice.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 1700 wrote to memory of 1888 N/A C:\Users\Admin\AppData\Local\Temp\Payment-Advice.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 1700 wrote to memory of 1888 N/A C:\Users\Admin\AppData\Local\Temp\Payment-Advice.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 1700 wrote to memory of 1888 N/A C:\Users\Admin\AppData\Local\Temp\Payment-Advice.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 1700 wrote to memory of 1888 N/A C:\Users\Admin\AppData\Local\Temp\Payment-Advice.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 1216 wrote to memory of 1628 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\svchost.exe
PID 1216 wrote to memory of 1628 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\svchost.exe
PID 1216 wrote to memory of 1628 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\svchost.exe
PID 1216 wrote to memory of 1628 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\svchost.exe
PID 1628 wrote to memory of 864 N/A C:\Windows\SysWOW64\svchost.exe C:\Windows\SysWOW64\cmd.exe
PID 1628 wrote to memory of 864 N/A C:\Windows\SysWOW64\svchost.exe C:\Windows\SysWOW64\cmd.exe
PID 1628 wrote to memory of 864 N/A C:\Windows\SysWOW64\svchost.exe C:\Windows\SysWOW64\cmd.exe
PID 1628 wrote to memory of 864 N/A C:\Windows\SysWOW64\svchost.exe C:\Windows\SysWOW64\cmd.exe

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\Payment-Advice.exe

"C:\Users\Admin\AppData\Local\Temp\Payment-Advice.exe"

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==

C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe

C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe purecrypter.exe

C:\Windows\SysWOW64\svchost.exe

"C:\Windows\SysWOW64\svchost.exe"

C:\Windows\SysWOW64\cmd.exe

/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 www.instant-ontvangst.info udp
US 67.223.117.38:80 www.instant-ontvangst.info tcp
US 8.8.8.8:53 www.tylermarkconforti.com udp
DE 3.64.163.50:80 www.tylermarkconforti.com tcp
US 8.8.8.8:53 www.instant-ontvangst.info udp
US 67.223.117.38:80 www.instant-ontvangst.info tcp
US 8.8.8.8:53 www.fp-wp.com udp
US 34.102.136.180:80 www.fp-wp.com tcp
US 8.8.8.8:53 www.mgsiren.com udp
US 34.117.168.233:80 www.mgsiren.com tcp

Files

memory/1700-54-0x0000000001260000-0x0000000001504000-memory.dmp

memory/1700-55-0x0000000004A30000-0x0000000004CB6000-memory.dmp

memory/1700-56-0x0000000076651000-0x0000000076653000-memory.dmp

memory/320-57-0x0000000000000000-mapping.dmp

memory/320-59-0x000000006FC60000-0x000000007020B000-memory.dmp

memory/320-60-0x000000006FC60000-0x000000007020B000-memory.dmp

memory/320-61-0x000000006FC60000-0x000000007020B000-memory.dmp

memory/1700-62-0x0000000004FA0000-0x0000000005002000-memory.dmp

memory/1888-63-0x0000000000400000-0x000000000042F000-memory.dmp

memory/1888-64-0x0000000000400000-0x000000000042F000-memory.dmp

memory/1888-66-0x0000000000400000-0x000000000042F000-memory.dmp

memory/1888-67-0x000000000041F0F0-mapping.dmp

memory/1888-69-0x0000000000400000-0x000000000042F000-memory.dmp

memory/1888-70-0x0000000000840000-0x0000000000B43000-memory.dmp

memory/1888-71-0x0000000000290000-0x00000000002A4000-memory.dmp

memory/1216-72-0x0000000006900000-0x0000000006A2E000-memory.dmp

memory/1628-73-0x0000000000000000-mapping.dmp

memory/1628-74-0x0000000000DF0000-0x0000000000DF8000-memory.dmp

memory/1628-75-0x0000000000080000-0x00000000000AF000-memory.dmp

memory/864-76-0x0000000000000000-mapping.dmp

memory/1628-77-0x00000000006C0000-0x00000000009C3000-memory.dmp

memory/1628-78-0x00000000004B0000-0x0000000000543000-memory.dmp

memory/1216-79-0x0000000006BF0000-0x0000000006D34000-memory.dmp

memory/1628-80-0x0000000000080000-0x00000000000AF000-memory.dmp

memory/1216-81-0x0000000006BF0000-0x0000000006D34000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-02-08 17:30

Reported

2023-02-08 17:33

Platform

win10v2004-20221111-en

Max time kernel

151s

Max time network

152s

Command Line

C:\Windows\Explorer.EXE

Signatures

Formbook

trojan spyware stealer formbook

Formbook payload

rat
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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\Payment-Advice.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1952 set thread context of 2792 N/A C:\Users\Admin\AppData\Local\Temp\Payment-Advice.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 2792 set thread context of 2532 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe C:\Windows\Explorer.EXE
PID 4688 set thread context of 2532 N/A C:\Windows\SysWOW64\msiexec.exe C:\Windows\Explorer.EXE

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe N/A
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe N/A
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe N/A
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Windows\Explorer.EXE N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Payment-Advice.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\msiexec.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1952 wrote to memory of 5080 N/A C:\Users\Admin\AppData\Local\Temp\Payment-Advice.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 1952 wrote to memory of 5080 N/A C:\Users\Admin\AppData\Local\Temp\Payment-Advice.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 1952 wrote to memory of 5080 N/A C:\Users\Admin\AppData\Local\Temp\Payment-Advice.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 1952 wrote to memory of 2792 N/A C:\Users\Admin\AppData\Local\Temp\Payment-Advice.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 1952 wrote to memory of 2792 N/A C:\Users\Admin\AppData\Local\Temp\Payment-Advice.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 1952 wrote to memory of 2792 N/A C:\Users\Admin\AppData\Local\Temp\Payment-Advice.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 1952 wrote to memory of 2792 N/A C:\Users\Admin\AppData\Local\Temp\Payment-Advice.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 1952 wrote to memory of 2792 N/A C:\Users\Admin\AppData\Local\Temp\Payment-Advice.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 1952 wrote to memory of 2792 N/A C:\Users\Admin\AppData\Local\Temp\Payment-Advice.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 2532 wrote to memory of 4688 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\msiexec.exe
PID 2532 wrote to memory of 4688 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\msiexec.exe
PID 2532 wrote to memory of 4688 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\msiexec.exe
PID 4688 wrote to memory of 3856 N/A C:\Windows\SysWOW64\msiexec.exe C:\Windows\SysWOW64\cmd.exe
PID 4688 wrote to memory of 3856 N/A C:\Windows\SysWOW64\msiexec.exe C:\Windows\SysWOW64\cmd.exe
PID 4688 wrote to memory of 3856 N/A C:\Windows\SysWOW64\msiexec.exe C:\Windows\SysWOW64\cmd.exe

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\Payment-Advice.exe

"C:\Users\Admin\AppData\Local\Temp\Payment-Advice.exe"

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==

C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe

C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe purecrypter.exe

C:\Windows\SysWOW64\msiexec.exe

"C:\Windows\SysWOW64\msiexec.exe"

C:\Windows\SysWOW64\cmd.exe

/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"

Network

Country Destination Domain Proto
IE 52.109.77.0:443 tcp
US 117.18.237.29:80 tcp
NL 104.80.225.205:443 tcp
JP 40.79.189.58:443 tcp
US 93.184.221.240:80 tcp
US 93.184.221.240:80 tcp
US 93.184.221.240:80 tcp
US 8.8.8.8:53 15.89.54.20.in-addr.arpa udp
US 8.8.8.8:53 www.premiumofadvertify.info udp
US 8.8.8.8:53 226.101.242.52.in-addr.arpa udp
US 8.8.8.8:53 www.tylermarkconforti.com udp
DE 3.64.163.50:80 www.tylermarkconforti.com tcp
US 8.8.8.8:53 6.9.0.0.0.0.0.0.0.0.0.0.0.0.0.0.3.0.0.0.3.0.4.0.0.3.0.1.3.0.6.2.ip6.arpa udp
US 8.8.8.8:53 www.u-too.solar udp
FR 213.186.33.5:80 www.u-too.solar tcp
US 8.8.8.8:53 www.291489.com udp
HK 20.2.68.8:80 www.291489.com tcp
US 8.8.8.8:53 www.philippevieux.net udp
US 104.21.25.186:80 www.philippevieux.net tcp

Files

memory/1952-132-0x0000000000BC0000-0x0000000000E64000-memory.dmp

memory/1952-133-0x0000000005AD0000-0x0000000005AF2000-memory.dmp

memory/5080-134-0x0000000000000000-mapping.dmp

memory/5080-135-0x00000000024F0000-0x0000000002526000-memory.dmp

memory/5080-136-0x0000000004DC0000-0x00000000053E8000-memory.dmp

memory/5080-137-0x0000000004D40000-0x0000000004DA6000-memory.dmp

memory/5080-138-0x00000000054A0000-0x0000000005506000-memory.dmp

memory/5080-139-0x0000000005AE0000-0x0000000005AFE000-memory.dmp

memory/5080-140-0x0000000007350000-0x00000000079CA000-memory.dmp

memory/5080-141-0x0000000005FE0000-0x0000000005FFA000-memory.dmp

memory/2792-142-0x0000000000000000-mapping.dmp

memory/2792-143-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2792-145-0x00000000017E0000-0x0000000001B2A000-memory.dmp

memory/2532-147-0x0000000008280000-0x0000000008367000-memory.dmp

memory/2792-146-0x00000000017C0000-0x00000000017D4000-memory.dmp

memory/4688-148-0x0000000000000000-mapping.dmp

memory/2792-149-0x0000000000400000-0x000000000042F000-memory.dmp

memory/4688-151-0x00000000010B0000-0x00000000010DF000-memory.dmp

memory/4688-150-0x00000000008A0000-0x00000000008B2000-memory.dmp

memory/4688-152-0x0000000003030000-0x000000000337A000-memory.dmp

memory/3856-153-0x0000000000000000-mapping.dmp

memory/4688-154-0x00000000010B0000-0x00000000010DF000-memory.dmp

memory/4688-155-0x0000000002E70000-0x0000000002F03000-memory.dmp

memory/2532-156-0x0000000008370000-0x0000000008489000-memory.dmp

memory/2532-157-0x0000000008370000-0x0000000008489000-memory.dmp