Malware Analysis Report

2024-10-19 09:28

Sample ID 240711-w5f7za1enc
Target Akb38lKYd6rDV8l.exe
SHA256 9022ec12d1c63779111d34993afd7aa58f7a7ed7087271c52f2300dee80c7f89
Tags
formbook dy13 rat spyware stealer trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

9022ec12d1c63779111d34993afd7aa58f7a7ed7087271c52f2300dee80c7f89

Threat Level: Known bad

The file Akb38lKYd6rDV8l.exe was found to be: Known bad.

Malicious Activity Summary

formbook dy13 rat spyware stealer trojan

Formbook

Formbook payload

Deletes itself

Suspicious use of SetThreadContext

Unsigned PE

Suspicious use of FindShellTrayWindow

Suspicious behavior: MapViewOfSection

Modifies registry class

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Gathers network information

Suspicious use of WriteProcessMemory

Suspicious use of UnmapMainImage

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-07-11 18:30

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-11 18:30

Reported

2024-07-11 18:32

Platform

win10v2004-20240709-en

Max time kernel

149s

Max time network

149s

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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 4684 set thread context of 408 N/A C:\Users\Admin\AppData\Local\Temp\Akb38lKYd6rDV8l.exe C:\Users\Admin\AppData\Local\Temp\Akb38lKYd6rDV8l.exe
PID 408 set thread context of 3532 N/A C:\Users\Admin\AppData\Local\Temp\Akb38lKYd6rDV8l.exe C:\Windows\Explorer.EXE
PID 984 set thread context of 3532 N/A C:\Windows\SysWOW64\NETSTAT.EXE C:\Windows\Explorer.EXE

Gathers network information

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

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ C:\Windows\Explorer.EXE N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Akb38lKYd6rDV8l.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Akb38lKYd6rDV8l.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Akb38lKYd6rDV8l.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Akb38lKYd6rDV8l.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Akb38lKYd6rDV8l.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Akb38lKYd6rDV8l.exe N/A
N/A N/A C:\Windows\SysWOW64\NETSTAT.EXE N/A
N/A N/A C:\Windows\SysWOW64\NETSTAT.EXE N/A
N/A N/A C:\Windows\SysWOW64\NETSTAT.EXE N/A
N/A N/A C:\Windows\SysWOW64\NETSTAT.EXE N/A
N/A N/A C:\Windows\SysWOW64\NETSTAT.EXE N/A
N/A N/A C:\Windows\SysWOW64\NETSTAT.EXE N/A
N/A N/A C:\Windows\SysWOW64\NETSTAT.EXE N/A
N/A N/A C:\Windows\SysWOW64\NETSTAT.EXE N/A
N/A N/A C:\Windows\SysWOW64\NETSTAT.EXE N/A
N/A N/A C:\Windows\SysWOW64\NETSTAT.EXE N/A
N/A N/A C:\Windows\SysWOW64\NETSTAT.EXE N/A
N/A N/A C:\Windows\SysWOW64\NETSTAT.EXE N/A
N/A N/A C:\Windows\SysWOW64\NETSTAT.EXE N/A
N/A N/A C:\Windows\SysWOW64\NETSTAT.EXE N/A
N/A N/A C:\Windows\SysWOW64\NETSTAT.EXE N/A
N/A N/A C:\Windows\SysWOW64\NETSTAT.EXE N/A
N/A N/A C:\Windows\SysWOW64\NETSTAT.EXE N/A
N/A N/A C:\Windows\SysWOW64\NETSTAT.EXE N/A
N/A N/A C:\Windows\SysWOW64\NETSTAT.EXE N/A
N/A N/A C:\Windows\SysWOW64\NETSTAT.EXE N/A
N/A N/A C:\Windows\SysWOW64\NETSTAT.EXE N/A
N/A N/A C:\Windows\SysWOW64\NETSTAT.EXE N/A
N/A N/A C:\Windows\SysWOW64\NETSTAT.EXE N/A
N/A N/A C:\Windows\SysWOW64\NETSTAT.EXE N/A
N/A N/A C:\Windows\SysWOW64\NETSTAT.EXE N/A
N/A N/A C:\Windows\SysWOW64\NETSTAT.EXE N/A
N/A N/A C:\Windows\SysWOW64\NETSTAT.EXE N/A
N/A N/A C:\Windows\SysWOW64\NETSTAT.EXE N/A
N/A N/A C:\Windows\SysWOW64\NETSTAT.EXE N/A
N/A N/A C:\Windows\SysWOW64\NETSTAT.EXE N/A
N/A N/A C:\Windows\SysWOW64\NETSTAT.EXE N/A
N/A N/A C:\Windows\SysWOW64\NETSTAT.EXE N/A
N/A N/A C:\Windows\SysWOW64\NETSTAT.EXE N/A
N/A N/A C:\Windows\SysWOW64\NETSTAT.EXE N/A
N/A N/A C:\Windows\SysWOW64\NETSTAT.EXE N/A
N/A N/A C:\Windows\SysWOW64\NETSTAT.EXE N/A
N/A N/A C:\Windows\SysWOW64\NETSTAT.EXE N/A
N/A N/A C:\Windows\SysWOW64\NETSTAT.EXE N/A
N/A N/A C:\Windows\SysWOW64\NETSTAT.EXE N/A
N/A N/A C:\Windows\SysWOW64\NETSTAT.EXE N/A
N/A N/A C:\Windows\SysWOW64\NETSTAT.EXE N/A
N/A N/A C:\Windows\SysWOW64\NETSTAT.EXE N/A
N/A N/A C:\Windows\SysWOW64\NETSTAT.EXE N/A
N/A N/A C:\Windows\SysWOW64\NETSTAT.EXE N/A
N/A N/A C:\Windows\SysWOW64\NETSTAT.EXE N/A
N/A N/A C:\Windows\SysWOW64\NETSTAT.EXE N/A
N/A N/A C:\Windows\SysWOW64\NETSTAT.EXE N/A
N/A N/A C:\Windows\SysWOW64\NETSTAT.EXE N/A
N/A N/A C:\Windows\SysWOW64\NETSTAT.EXE N/A
N/A N/A C:\Windows\SysWOW64\NETSTAT.EXE N/A
N/A N/A C:\Windows\SysWOW64\NETSTAT.EXE N/A
N/A N/A C:\Windows\SysWOW64\NETSTAT.EXE N/A
N/A N/A C:\Windows\SysWOW64\NETSTAT.EXE N/A
N/A N/A C:\Windows\SysWOW64\NETSTAT.EXE N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Akb38lKYd6rDV8l.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Akb38lKYd6rDV8l.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\NETSTAT.EXE N/A
Token: SeShutdownPrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeShutdownPrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\Explorer.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 UnmapMainImage

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4684 wrote to memory of 3872 N/A C:\Users\Admin\AppData\Local\Temp\Akb38lKYd6rDV8l.exe C:\Users\Admin\AppData\Local\Temp\Akb38lKYd6rDV8l.exe
PID 4684 wrote to memory of 3872 N/A C:\Users\Admin\AppData\Local\Temp\Akb38lKYd6rDV8l.exe C:\Users\Admin\AppData\Local\Temp\Akb38lKYd6rDV8l.exe
PID 4684 wrote to memory of 3872 N/A C:\Users\Admin\AppData\Local\Temp\Akb38lKYd6rDV8l.exe C:\Users\Admin\AppData\Local\Temp\Akb38lKYd6rDV8l.exe
PID 4684 wrote to memory of 408 N/A C:\Users\Admin\AppData\Local\Temp\Akb38lKYd6rDV8l.exe C:\Users\Admin\AppData\Local\Temp\Akb38lKYd6rDV8l.exe
PID 4684 wrote to memory of 408 N/A C:\Users\Admin\AppData\Local\Temp\Akb38lKYd6rDV8l.exe C:\Users\Admin\AppData\Local\Temp\Akb38lKYd6rDV8l.exe
PID 4684 wrote to memory of 408 N/A C:\Users\Admin\AppData\Local\Temp\Akb38lKYd6rDV8l.exe C:\Users\Admin\AppData\Local\Temp\Akb38lKYd6rDV8l.exe
PID 4684 wrote to memory of 408 N/A C:\Users\Admin\AppData\Local\Temp\Akb38lKYd6rDV8l.exe C:\Users\Admin\AppData\Local\Temp\Akb38lKYd6rDV8l.exe
PID 4684 wrote to memory of 408 N/A C:\Users\Admin\AppData\Local\Temp\Akb38lKYd6rDV8l.exe C:\Users\Admin\AppData\Local\Temp\Akb38lKYd6rDV8l.exe
PID 4684 wrote to memory of 408 N/A C:\Users\Admin\AppData\Local\Temp\Akb38lKYd6rDV8l.exe C:\Users\Admin\AppData\Local\Temp\Akb38lKYd6rDV8l.exe
PID 3532 wrote to memory of 984 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\NETSTAT.EXE
PID 3532 wrote to memory of 984 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\NETSTAT.EXE
PID 3532 wrote to memory of 984 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\NETSTAT.EXE
PID 984 wrote to memory of 3320 N/A C:\Windows\SysWOW64\NETSTAT.EXE C:\Windows\SysWOW64\cmd.exe
PID 984 wrote to memory of 3320 N/A C:\Windows\SysWOW64\NETSTAT.EXE C:\Windows\SysWOW64\cmd.exe
PID 984 wrote to memory of 3320 N/A C:\Windows\SysWOW64\NETSTAT.EXE C:\Windows\SysWOW64\cmd.exe

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\Akb38lKYd6rDV8l.exe

"C:\Users\Admin\AppData\Local\Temp\Akb38lKYd6rDV8l.exe"

C:\Users\Admin\AppData\Local\Temp\Akb38lKYd6rDV8l.exe

"C:\Users\Admin\AppData\Local\Temp\Akb38lKYd6rDV8l.exe"

C:\Users\Admin\AppData\Local\Temp\Akb38lKYd6rDV8l.exe

"C:\Users\Admin\AppData\Local\Temp\Akb38lKYd6rDV8l.exe"

C:\Windows\SysWOW64\NETSTAT.EXE

"C:\Windows\SysWOW64\NETSTAT.EXE"

C:\Windows\SysWOW64\cmd.exe

/c del "C:\Users\Admin\AppData\Local\Temp\Akb38lKYd6rDV8l.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 136.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 www.kgfna.biz udp
HK 103.39.108.85:80 www.kgfna.biz tcp
US 8.8.8.8:53 85.108.39.103.in-addr.arpa udp
US 8.8.8.8:53 240.143.123.92.in-addr.arpa udp
US 8.8.8.8:53 www.camperelektrikde.shop udp
US 104.21.20.93:80 www.camperelektrikde.shop tcp
US 8.8.8.8:53 93.20.21.104.in-addr.arpa udp
US 8.8.8.8:53 www.bt365033.com udp
US 172.67.149.147:80 www.bt365033.com tcp
US 8.8.8.8:53 147.149.67.172.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 www.883106.photos udp
HK 147.92.43.172:80 www.883106.photos tcp
US 8.8.8.8:53 172.43.92.147.in-addr.arpa udp
US 8.8.8.8:53 www.fin4d-sl.com udp
US 172.67.170.85:80 www.fin4d-sl.com tcp
US 8.8.8.8:53 85.170.67.172.in-addr.arpa udp
US 8.8.8.8:53 www.3dsciagames.com udp
US 103.224.212.210:80 www.3dsciagames.com tcp
US 8.8.8.8:53 210.212.224.103.in-addr.arpa udp

Files

memory/4684-0-0x0000000074FBE000-0x0000000074FBF000-memory.dmp

memory/4684-1-0x0000000000720000-0x00000000007E4000-memory.dmp

memory/4684-2-0x0000000005710000-0x0000000005CB4000-memory.dmp

memory/4684-3-0x0000000005200000-0x0000000005292000-memory.dmp

memory/4684-4-0x00000000052A0000-0x00000000052AA000-memory.dmp

memory/4684-5-0x0000000074FB0000-0x0000000075760000-memory.dmp

memory/4684-6-0x0000000005370000-0x0000000005382000-memory.dmp

memory/4684-7-0x00000000055D0000-0x00000000055D8000-memory.dmp

memory/4684-8-0x00000000055E0000-0x00000000055EE000-memory.dmp

memory/4684-9-0x00000000063C0000-0x0000000006436000-memory.dmp

memory/4684-10-0x0000000006680000-0x000000000671C000-memory.dmp

memory/408-11-0x0000000000400000-0x000000000042F000-memory.dmp

memory/4684-13-0x0000000074FB0000-0x0000000075760000-memory.dmp

memory/408-14-0x00000000011A0000-0x00000000014EA000-memory.dmp

memory/408-17-0x0000000000D10000-0x0000000000D25000-memory.dmp

memory/3532-18-0x0000000004AF0000-0x0000000004BA8000-memory.dmp

memory/408-16-0x0000000000400000-0x000000000042F000-memory.dmp

memory/984-19-0x0000000000440000-0x000000000044B000-memory.dmp

memory/984-20-0x0000000000440000-0x000000000044B000-memory.dmp

memory/984-21-0x0000000000CD0000-0x0000000000CFF000-memory.dmp

memory/3532-23-0x0000000004AF0000-0x0000000004BA8000-memory.dmp

memory/3532-25-0x0000000008820000-0x000000000898E000-memory.dmp

memory/3532-27-0x0000000008820000-0x000000000898E000-memory.dmp

memory/3532-30-0x0000000008820000-0x000000000898E000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-11 18:30

Reported

2024-07-11 18:32

Platform

win7-20240705-en

Max time kernel

148s

Max time network

121s

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

Deletes itself

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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2768 set thread context of 2440 N/A C:\Users\Admin\AppData\Local\Temp\Akb38lKYd6rDV8l.exe C:\Users\Admin\AppData\Local\Temp\Akb38lKYd6rDV8l.exe
PID 2440 set thread context of 1216 N/A C:\Users\Admin\AppData\Local\Temp\Akb38lKYd6rDV8l.exe C:\Windows\Explorer.EXE
PID 2696 set thread context of 1216 N/A C:\Windows\SysWOW64\help.exe C:\Windows\Explorer.EXE

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Akb38lKYd6rDV8l.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\help.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2768 wrote to memory of 2440 N/A C:\Users\Admin\AppData\Local\Temp\Akb38lKYd6rDV8l.exe C:\Users\Admin\AppData\Local\Temp\Akb38lKYd6rDV8l.exe
PID 2768 wrote to memory of 2440 N/A C:\Users\Admin\AppData\Local\Temp\Akb38lKYd6rDV8l.exe C:\Users\Admin\AppData\Local\Temp\Akb38lKYd6rDV8l.exe
PID 2768 wrote to memory of 2440 N/A C:\Users\Admin\AppData\Local\Temp\Akb38lKYd6rDV8l.exe C:\Users\Admin\AppData\Local\Temp\Akb38lKYd6rDV8l.exe
PID 2768 wrote to memory of 2440 N/A C:\Users\Admin\AppData\Local\Temp\Akb38lKYd6rDV8l.exe C:\Users\Admin\AppData\Local\Temp\Akb38lKYd6rDV8l.exe
PID 2768 wrote to memory of 2440 N/A C:\Users\Admin\AppData\Local\Temp\Akb38lKYd6rDV8l.exe C:\Users\Admin\AppData\Local\Temp\Akb38lKYd6rDV8l.exe
PID 2768 wrote to memory of 2440 N/A C:\Users\Admin\AppData\Local\Temp\Akb38lKYd6rDV8l.exe C:\Users\Admin\AppData\Local\Temp\Akb38lKYd6rDV8l.exe
PID 2768 wrote to memory of 2440 N/A C:\Users\Admin\AppData\Local\Temp\Akb38lKYd6rDV8l.exe C:\Users\Admin\AppData\Local\Temp\Akb38lKYd6rDV8l.exe
PID 1216 wrote to memory of 2696 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\help.exe
PID 1216 wrote to memory of 2696 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\help.exe
PID 1216 wrote to memory of 2696 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\help.exe
PID 1216 wrote to memory of 2696 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\help.exe
PID 2696 wrote to memory of 2628 N/A C:\Windows\SysWOW64\help.exe C:\Windows\SysWOW64\cmd.exe
PID 2696 wrote to memory of 2628 N/A C:\Windows\SysWOW64\help.exe C:\Windows\SysWOW64\cmd.exe
PID 2696 wrote to memory of 2628 N/A C:\Windows\SysWOW64\help.exe C:\Windows\SysWOW64\cmd.exe
PID 2696 wrote to memory of 2628 N/A C:\Windows\SysWOW64\help.exe C:\Windows\SysWOW64\cmd.exe

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\Akb38lKYd6rDV8l.exe

"C:\Users\Admin\AppData\Local\Temp\Akb38lKYd6rDV8l.exe"

C:\Users\Admin\AppData\Local\Temp\Akb38lKYd6rDV8l.exe

"C:\Users\Admin\AppData\Local\Temp\Akb38lKYd6rDV8l.exe"

C:\Windows\SysWOW64\help.exe

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

C:\Windows\SysWOW64\cmd.exe

/c del "C:\Users\Admin\AppData\Local\Temp\Akb38lKYd6rDV8l.exe"

Network

N/A

Files

memory/2768-0-0x0000000074E4E000-0x0000000074E4F000-memory.dmp

memory/2768-1-0x0000000000990000-0x0000000000A54000-memory.dmp

memory/2768-2-0x0000000074E40000-0x000000007552E000-memory.dmp

memory/2768-3-0x0000000000430000-0x0000000000442000-memory.dmp

memory/2768-4-0x0000000000910000-0x0000000000918000-memory.dmp

memory/2768-5-0x0000000000920000-0x000000000092E000-memory.dmp

memory/2768-6-0x0000000004B10000-0x0000000004B86000-memory.dmp

memory/2440-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2440-11-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2440-7-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2440-8-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2768-12-0x0000000074E40000-0x000000007552E000-memory.dmp

memory/2440-13-0x0000000000A60000-0x0000000000D63000-memory.dmp

memory/2440-16-0x0000000000180000-0x0000000000195000-memory.dmp

memory/2440-15-0x0000000000400000-0x000000000042F000-memory.dmp

memory/1216-17-0x00000000047A0000-0x0000000004892000-memory.dmp

memory/2696-18-0x0000000000CA0000-0x0000000000CA6000-memory.dmp

memory/2696-20-0x0000000000CA0000-0x0000000000CA6000-memory.dmp

memory/2696-21-0x0000000000080000-0x00000000000AF000-memory.dmp

memory/1216-24-0x00000000047A0000-0x0000000004892000-memory.dmp