Malware Analysis Report

2025-08-10 22:11

Sample ID 231011-r7ysksec2w
Target Invoice#23615B001.rar
SHA256 7ed03b1ce56f8d2da0fcff50652b3f118513bdac2f8b81381db7c62fdaafad33
Tags
formbook sn26 rat spyware stealer trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

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

7ed03b1ce56f8d2da0fcff50652b3f118513bdac2f8b81381db7c62fdaafad33

Threat Level: Known bad

The file Invoice#23615B001.rar was found to be: Known bad.

Malicious Activity Summary

formbook sn26 rat spyware stealer trojan

Formbook

Formbook payload

Deletes itself

Suspicious use of SetThreadContext

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious use of UnmapMainImage

Suspicious behavior: GetForegroundWindowSpam

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2023-10-11 14:50

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-10-11 14:50

Reported

2023-10-12 04:38

Platform

win7-20230831-en

Max time kernel

150s

Max time network

167s

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
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 2260 set thread context of 2752 N/A C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe
PID 2752 set thread context of 1208 N/A C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe C:\Windows\Explorer.EXE
PID 2752 set thread context of 1208 N/A C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe C:\Windows\Explorer.EXE
PID 2536 set thread context of 1208 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\Explorer.EXE

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\Invoice#23615B001.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\cmd.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2260 wrote to memory of 2752 N/A C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe
PID 2260 wrote to memory of 2752 N/A C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe
PID 2260 wrote to memory of 2752 N/A C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe
PID 2260 wrote to memory of 2752 N/A C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe
PID 2260 wrote to memory of 2752 N/A C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe
PID 2260 wrote to memory of 2752 N/A C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe
PID 2260 wrote to memory of 2752 N/A C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe
PID 2752 wrote to memory of 2536 N/A C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe C:\Windows\SysWOW64\cmd.exe
PID 2752 wrote to memory of 2536 N/A C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe C:\Windows\SysWOW64\cmd.exe
PID 2752 wrote to memory of 2536 N/A C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe C:\Windows\SysWOW64\cmd.exe
PID 2752 wrote to memory of 2536 N/A C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe C:\Windows\SysWOW64\cmd.exe
PID 2536 wrote to memory of 2668 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\cmd.exe
PID 2536 wrote to memory of 2668 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\cmd.exe
PID 2536 wrote to memory of 2668 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\cmd.exe
PID 2536 wrote to memory of 2668 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\cmd.exe

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe

"C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe"

C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe

"{path}"

C:\Windows\SysWOW64\cmd.exe

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

C:\Windows\SysWOW64\cmd.exe

/c del "C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 www.hawskio26.click udp
US 172.96.186.176:80 www.hawskio26.click tcp
US 8.8.8.8:53 www.rdparadise.com udp
US 104.18.36.102:80 www.rdparadise.com tcp
US 8.8.8.8:53 www.thewhiteorchidspa.com udp
US 34.149.87.45:80 www.thewhiteorchidspa.com tcp
US 8.8.8.8:53 www.rhinosecurellc.net udp

Files

memory/2260-0-0x0000000073F20000-0x000000007460E000-memory.dmp

memory/2260-1-0x0000000000BE0000-0x0000000000C86000-memory.dmp

memory/2260-2-0x00000000020C0000-0x0000000002100000-memory.dmp

memory/2260-3-0x0000000000390000-0x000000000039C000-memory.dmp

memory/2260-4-0x0000000073F20000-0x000000007460E000-memory.dmp

memory/2260-5-0x00000000020C0000-0x0000000002100000-memory.dmp

memory/2260-6-0x0000000005DC0000-0x0000000005E5A000-memory.dmp

memory/2260-7-0x0000000004350000-0x0000000004398000-memory.dmp

memory/2752-8-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2752-9-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2752-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2752-12-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2260-13-0x0000000073F20000-0x000000007460E000-memory.dmp

memory/2752-14-0x0000000000870000-0x0000000000B73000-memory.dmp

memory/2752-16-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2752-17-0x0000000000300000-0x0000000000315000-memory.dmp

memory/1208-18-0x0000000008C00000-0x0000000008DAC000-memory.dmp

memory/2752-20-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2752-21-0x0000000000360000-0x0000000000375000-memory.dmp

memory/1208-22-0x0000000006090000-0x00000000061D4000-memory.dmp

memory/1208-23-0x000007FEF5350000-0x000007FEF5493000-memory.dmp

memory/1208-24-0x000007FF65EC0000-0x000007FF65ECA000-memory.dmp

memory/2536-25-0x0000000049F00000-0x0000000049F4C000-memory.dmp

memory/2536-26-0x0000000049F00000-0x0000000049F4C000-memory.dmp

memory/2536-27-0x00000000000C0000-0x00000000000EF000-memory.dmp

memory/2536-28-0x0000000001F80000-0x0000000002283000-memory.dmp

memory/2536-29-0x00000000000C0000-0x00000000000EF000-memory.dmp

memory/2536-30-0x0000000001DF0000-0x0000000001E84000-memory.dmp

memory/1208-31-0x0000000009780000-0x00000000098FB000-memory.dmp

memory/1208-33-0x0000000009780000-0x00000000098FB000-memory.dmp

memory/1208-34-0x0000000009780000-0x00000000098FB000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-10-11 14:50

Reported

2023-10-12 04:38

Platform

win10v2004-20230915-en

Max time kernel

151s

Max time network

157s

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
N/A N/A N/A N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 4956 set thread context of 1660 N/A C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe
PID 1660 set thread context of 3180 N/A C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe C:\Windows\Explorer.EXE
PID 1660 set thread context of 3180 N/A C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe C:\Windows\Explorer.EXE
PID 4140 set thread context of 3180 N/A C:\Windows\SysWOW64\mstsc.exe C:\Windows\Explorer.EXE

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.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\Invoice#23615B001.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\mstsc.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 4956 wrote to memory of 1660 N/A C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe
PID 4956 wrote to memory of 1660 N/A C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe
PID 4956 wrote to memory of 1660 N/A C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe
PID 4956 wrote to memory of 1660 N/A C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe
PID 4956 wrote to memory of 1660 N/A C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe
PID 4956 wrote to memory of 1660 N/A C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe
PID 3180 wrote to memory of 4140 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\mstsc.exe
PID 3180 wrote to memory of 4140 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\mstsc.exe
PID 3180 wrote to memory of 4140 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\mstsc.exe
PID 4140 wrote to memory of 3620 N/A C:\Windows\SysWOW64\mstsc.exe C:\Windows\SysWOW64\cmd.exe
PID 4140 wrote to memory of 3620 N/A C:\Windows\SysWOW64\mstsc.exe C:\Windows\SysWOW64\cmd.exe
PID 4140 wrote to memory of 3620 N/A C:\Windows\SysWOW64\mstsc.exe C:\Windows\SysWOW64\cmd.exe

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe

"C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe"

C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe

"{path}"

C:\Windows\SysWOW64\mstsc.exe

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

C:\Windows\SysWOW64\cmd.exe

/c del "C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe"

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 69.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 146.78.124.51.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 29.81.57.23.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 59.128.231.4.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 254.105.26.67.in-addr.arpa udp
US 8.8.8.8:53 2.136.104.51.in-addr.arpa udp
US 8.8.8.8:53 www.msjbaddf.cfd udp
US 107.148.147.43:80 www.msjbaddf.cfd tcp
US 8.8.8.8:53 43.147.148.107.in-addr.arpa udp
US 8.8.8.8:53 www.linkboladewahub.xyz udp
DE 91.195.241.232:80 www.linkboladewahub.xyz tcp
US 8.8.8.8:53 232.241.195.91.in-addr.arpa udp
US 8.8.8.8:53 www.miamiwinetour.com udp
US 8.8.8.8:53 4.173.189.20.in-addr.arpa udp

Files

memory/4956-0-0x00000000747A0000-0x0000000074F50000-memory.dmp

memory/4956-1-0x0000000000FF0000-0x0000000001096000-memory.dmp

memory/4956-2-0x0000000005A20000-0x0000000005ABC000-memory.dmp

memory/4956-3-0x00000000060A0000-0x0000000006644000-memory.dmp

memory/4956-4-0x0000000005B90000-0x0000000005C22000-memory.dmp

memory/4956-5-0x0000000005D10000-0x0000000005D20000-memory.dmp

memory/4956-6-0x0000000005AF0000-0x0000000005AFA000-memory.dmp

memory/4956-7-0x0000000005C30000-0x0000000005C86000-memory.dmp

memory/4956-8-0x0000000006650000-0x00000000069A4000-memory.dmp

memory/4956-9-0x0000000008BC0000-0x0000000008BCC000-memory.dmp

memory/4956-10-0x00000000747A0000-0x0000000074F50000-memory.dmp

memory/4956-11-0x0000000005D10000-0x0000000005D20000-memory.dmp

memory/4956-12-0x00000000073A0000-0x000000000743A000-memory.dmp

memory/4956-13-0x0000000008C60000-0x0000000008CA8000-memory.dmp

memory/1660-14-0x0000000000400000-0x000000000042F000-memory.dmp

memory/4956-16-0x00000000747A0000-0x0000000074F50000-memory.dmp

memory/1660-17-0x00000000013E0000-0x000000000172A000-memory.dmp

memory/1660-19-0x0000000000400000-0x000000000042F000-memory.dmp

memory/1660-20-0x0000000000EE0000-0x0000000000EF5000-memory.dmp

memory/3180-21-0x0000000008D90000-0x0000000008F36000-memory.dmp

memory/1660-23-0x0000000000400000-0x000000000042F000-memory.dmp

memory/1660-24-0x0000000000F60000-0x0000000000F75000-memory.dmp

memory/3180-25-0x0000000009320000-0x0000000009445000-memory.dmp

memory/4140-26-0x0000000000410000-0x000000000054A000-memory.dmp

memory/3180-28-0x0000000008D90000-0x0000000008F36000-memory.dmp

memory/4140-29-0x0000000000410000-0x000000000054A000-memory.dmp

memory/4140-30-0x0000000000550000-0x000000000057F000-memory.dmp

memory/4140-31-0x0000000002520000-0x000000000286A000-memory.dmp

memory/4140-32-0x0000000000550000-0x000000000057F000-memory.dmp

memory/3180-33-0x0000000009320000-0x0000000009445000-memory.dmp

memory/4140-35-0x00000000023C0000-0x0000000002454000-memory.dmp

memory/3180-36-0x0000000009110000-0x000000000921B000-memory.dmp

memory/3180-37-0x0000000009110000-0x000000000921B000-memory.dmp