Malware Analysis Report

2025-01-18 12:24

Sample ID 240829-kvjdssvfpr
Target 2.exe
SHA256 5a0cf9e038ccec4e878a683c917c93d28a9aa301d478711b01c199e9fb14aa30
Tags
discovery formbook rn94 rat spyware stealer 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

5a0cf9e038ccec4e878a683c917c93d28a9aa301d478711b01c199e9fb14aa30

Threat Level: Known bad

The file 2.exe was found to be: Known bad.

Malicious Activity Summary

discovery formbook rn94 rat spyware stealer trojan

Suspicious use of NtCreateUserProcessOtherParentProcess

Formbook

Formbook payload

Suspicious use of SetThreadContext

System Location Discovery: System Language Discovery

Program crash

Unsigned PE

Suspicious use of UnmapMainImage

Enumerates system info in registry

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Modifies registry class

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-29 08:55

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-29 08:55

Reported

2024-08-29 08:59

Platform

win7-20240729-en

Max time kernel

16s

Max time network

16s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2.exe"

Signatures

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Users\Admin\AppData\Local\Temp\2.exe

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\2.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\2.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\2.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1316 wrote to memory of 5868 N/A C:\Users\Admin\AppData\Local\Temp\2.exe C:\Windows\SysWOW64\WerFault.exe
PID 1316 wrote to memory of 5868 N/A C:\Users\Admin\AppData\Local\Temp\2.exe C:\Windows\SysWOW64\WerFault.exe
PID 1316 wrote to memory of 5868 N/A C:\Users\Admin\AppData\Local\Temp\2.exe C:\Windows\SysWOW64\WerFault.exe
PID 1316 wrote to memory of 5868 N/A C:\Users\Admin\AppData\Local\Temp\2.exe C:\Windows\SysWOW64\WerFault.exe

Processes

C:\Users\Admin\AppData\Local\Temp\2.exe

"C:\Users\Admin\AppData\Local\Temp\2.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1316 -s 1216

Network

Country Destination Domain Proto
NL 91.92.254.178:80 91.92.254.178 tcp

Files

memory/1316-0-0x000000007474E000-0x000000007474F000-memory.dmp

memory/1316-1-0x0000000001110000-0x000000000111E000-memory.dmp

memory/1316-2-0x0000000074740000-0x0000000074E2E000-memory.dmp

memory/1316-3-0x0000000006390000-0x000000000648E000-memory.dmp

memory/1316-5-0x0000000006390000-0x0000000006488000-memory.dmp

memory/1316-4-0x0000000006390000-0x0000000006488000-memory.dmp

memory/1316-21-0x0000000006390000-0x0000000006488000-memory.dmp

memory/1316-11-0x0000000006390000-0x0000000006488000-memory.dmp

memory/1316-7-0x0000000006390000-0x0000000006488000-memory.dmp

memory/1316-39-0x0000000006390000-0x0000000006488000-memory.dmp

memory/1316-9-0x0000000006390000-0x0000000006488000-memory.dmp

memory/1316-14-0x0000000006390000-0x0000000006488000-memory.dmp

memory/1316-15-0x0000000006390000-0x0000000006488000-memory.dmp

memory/1316-17-0x0000000006390000-0x0000000006488000-memory.dmp

memory/1316-23-0x0000000006390000-0x0000000006488000-memory.dmp

memory/1316-27-0x0000000006390000-0x0000000006488000-memory.dmp

memory/1316-29-0x0000000006390000-0x0000000006488000-memory.dmp

memory/1316-31-0x0000000006390000-0x0000000006488000-memory.dmp

memory/1316-59-0x0000000006390000-0x0000000006488000-memory.dmp

memory/1316-57-0x0000000006390000-0x0000000006488000-memory.dmp

memory/1316-55-0x0000000006390000-0x0000000006488000-memory.dmp

memory/1316-53-0x0000000006390000-0x0000000006488000-memory.dmp

memory/1316-51-0x0000000006390000-0x0000000006488000-memory.dmp

memory/1316-49-0x0000000006390000-0x0000000006488000-memory.dmp

memory/1316-47-0x0000000006390000-0x0000000006488000-memory.dmp

memory/1316-45-0x0000000006390000-0x0000000006488000-memory.dmp

memory/1316-43-0x0000000006390000-0x0000000006488000-memory.dmp

memory/1316-41-0x0000000006390000-0x0000000006488000-memory.dmp

memory/1316-37-0x0000000006390000-0x0000000006488000-memory.dmp

memory/1316-35-0x0000000006390000-0x0000000006488000-memory.dmp

memory/1316-33-0x0000000006390000-0x0000000006488000-memory.dmp

memory/1316-25-0x0000000006390000-0x0000000006488000-memory.dmp

memory/1316-19-0x0000000006390000-0x0000000006488000-memory.dmp

memory/1316-61-0x0000000006390000-0x0000000006488000-memory.dmp

memory/1316-67-0x0000000006390000-0x0000000006488000-memory.dmp

memory/1316-65-0x0000000006390000-0x0000000006488000-memory.dmp

memory/1316-63-0x0000000006390000-0x0000000006488000-memory.dmp

memory/1316-1078-0x0000000074740000-0x0000000074E2E000-memory.dmp

memory/1316-1079-0x0000000005CD0000-0x0000000005D48000-memory.dmp

memory/1316-1080-0x0000000004B60000-0x0000000004BAC000-memory.dmp

memory/1316-1081-0x0000000004C70000-0x0000000004CC4000-memory.dmp

memory/1316-1082-0x000000007474E000-0x000000007474F000-memory.dmp

memory/1316-1083-0x0000000074740000-0x0000000074E2E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-29 08:55

Reported

2024-08-29 08:59

Platform

win10v2004-20240802-en

Max time kernel

146s

Max time network

144s

Command Line

C:\Windows\Explorer.EXE

Signatures

Formbook

trojan spyware stealer formbook

Suspicious use of NtCreateUserProcessOtherParentProcess

Description Indicator Process Target
PID 3652 created 3420 N/A C:\Users\Admin\AppData\Local\Temp\2.exe C:\Windows\Explorer.EXE

Formbook payload

rat
Description Indicator Process Target
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 3652 set thread context of 1152 N/A C:\Users\Admin\AppData\Local\Temp\2.exe C:\Users\Admin\AppData\Local\Temp\2.exe
PID 1152 set thread context of 3420 N/A C:\Users\Admin\AppData\Local\Temp\2.exe C:\Windows\Explorer.EXE
PID 2952 set thread context of 3420 N/A C:\Windows\SysWOW64\chkdsk.exe C:\Windows\Explorer.EXE

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\2.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\chkdsk.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\cmd.exe N/A

Enumerates system info in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier C:\Windows\SysWOW64\chkdsk.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\ C:\Windows\Explorer.EXE N/A
Key created \REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\ C:\Windows\Explorer.EXE N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\2.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\2.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\2.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\2.exe N/A
N/A N/A C:\Windows\SysWOW64\chkdsk.exe N/A
N/A N/A C:\Windows\SysWOW64\chkdsk.exe N/A
N/A N/A C:\Windows\SysWOW64\chkdsk.exe N/A
N/A N/A C:\Windows\SysWOW64\chkdsk.exe N/A
N/A N/A C:\Windows\SysWOW64\chkdsk.exe N/A
N/A N/A C:\Windows\SysWOW64\chkdsk.exe N/A
N/A N/A C:\Windows\SysWOW64\chkdsk.exe N/A
N/A N/A C:\Windows\SysWOW64\chkdsk.exe N/A
N/A N/A C:\Windows\SysWOW64\chkdsk.exe N/A
N/A N/A C:\Windows\SysWOW64\chkdsk.exe N/A
N/A N/A C:\Windows\SysWOW64\chkdsk.exe N/A
N/A N/A C:\Windows\SysWOW64\chkdsk.exe N/A
N/A N/A C:\Windows\SysWOW64\chkdsk.exe N/A
N/A N/A C:\Windows\SysWOW64\chkdsk.exe N/A
N/A N/A C:\Windows\SysWOW64\chkdsk.exe N/A
N/A N/A C:\Windows\SysWOW64\chkdsk.exe N/A
N/A N/A C:\Windows\SysWOW64\chkdsk.exe N/A
N/A N/A C:\Windows\SysWOW64\chkdsk.exe N/A
N/A N/A C:\Windows\SysWOW64\chkdsk.exe N/A
N/A N/A C:\Windows\SysWOW64\chkdsk.exe N/A
N/A N/A C:\Windows\SysWOW64\chkdsk.exe N/A
N/A N/A C:\Windows\SysWOW64\chkdsk.exe N/A
N/A N/A C:\Windows\SysWOW64\chkdsk.exe N/A
N/A N/A C:\Windows\SysWOW64\chkdsk.exe N/A
N/A N/A C:\Windows\SysWOW64\chkdsk.exe N/A
N/A N/A C:\Windows\SysWOW64\chkdsk.exe N/A
N/A N/A C:\Windows\SysWOW64\chkdsk.exe N/A
N/A N/A C:\Windows\SysWOW64\chkdsk.exe N/A
N/A N/A C:\Windows\SysWOW64\chkdsk.exe N/A
N/A N/A C:\Windows\SysWOW64\chkdsk.exe N/A
N/A N/A C:\Windows\SysWOW64\chkdsk.exe N/A
N/A N/A C:\Windows\SysWOW64\chkdsk.exe N/A
N/A N/A C:\Windows\SysWOW64\chkdsk.exe N/A
N/A N/A C:\Windows\SysWOW64\chkdsk.exe N/A
N/A N/A C:\Windows\SysWOW64\chkdsk.exe N/A
N/A N/A C:\Windows\SysWOW64\chkdsk.exe N/A
N/A N/A C:\Windows\SysWOW64\chkdsk.exe N/A
N/A N/A C:\Windows\SysWOW64\chkdsk.exe N/A
N/A N/A C:\Windows\SysWOW64\chkdsk.exe N/A
N/A N/A C:\Windows\SysWOW64\chkdsk.exe N/A
N/A N/A C:\Windows\SysWOW64\chkdsk.exe N/A
N/A N/A C:\Windows\SysWOW64\chkdsk.exe N/A
N/A N/A C:\Windows\SysWOW64\chkdsk.exe N/A
N/A N/A C:\Windows\SysWOW64\chkdsk.exe N/A
N/A N/A C:\Windows\SysWOW64\chkdsk.exe N/A
N/A N/A C:\Windows\SysWOW64\chkdsk.exe N/A
N/A N/A C:\Windows\SysWOW64\chkdsk.exe N/A
N/A N/A C:\Windows\SysWOW64\chkdsk.exe N/A
N/A N/A C:\Windows\SysWOW64\chkdsk.exe N/A
N/A N/A C:\Windows\SysWOW64\chkdsk.exe N/A
N/A N/A C:\Windows\SysWOW64\chkdsk.exe N/A
N/A N/A C:\Windows\SysWOW64\chkdsk.exe N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\2.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\2.exe N/A
N/A N/A C:\Windows\SysWOW64\chkdsk.exe N/A
N/A N/A C:\Windows\SysWOW64\chkdsk.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\2.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\2.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\2.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\chkdsk.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 UnmapMainImage

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

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\2.exe

"C:\Users\Admin\AppData\Local\Temp\2.exe"

C:\Users\Admin\AppData\Local\Temp\2.exe

"C:\Users\Admin\AppData\Local\Temp\2.exe"

C:\Windows\SysWOW64\chkdsk.exe

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

C:\Windows\SysWOW64\cmd.exe

/c del "C:\Users\Admin\AppData\Local\Temp\2.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
NL 91.92.254.178:80 91.92.254.178 tcp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 74.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 8.8.8.8:53 178.254.92.91.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 65.139.73.23.in-addr.arpa udp
US 8.8.8.8:53 www.beauty.university udp
NL 35.214.167.24:80 www.beauty.university tcp
US 8.8.8.8:53 24.167.214.35.in-addr.arpa udp
US 8.8.8.8:53 www.moviemax.live udp
US 162.213.255.58:80 www.moviemax.live tcp
US 8.8.8.8:53 58.255.213.162.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 www.hello4d.dev udp
US 172.67.171.217:80 www.hello4d.dev tcp
US 8.8.8.8:53 217.171.67.172.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 23.236.111.52.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 www.umoe53fxc1bsujv.buzz udp
US 8.8.8.8:53 www.cognigrid.com udp
DE 3.64.163.50:80 www.cognigrid.com tcp
US 8.8.8.8:53 50.163.64.3.in-addr.arpa udp

Files

memory/3652-0-0x000000007446E000-0x000000007446F000-memory.dmp

memory/3652-1-0x0000000000B10000-0x0000000000B1E000-memory.dmp

memory/3652-2-0x0000000074460000-0x0000000074C10000-memory.dmp

memory/3652-3-0x00000000065C0000-0x00000000066BE000-memory.dmp

memory/3652-11-0x00000000065C0000-0x00000000066B8000-memory.dmp

memory/3652-17-0x00000000065C0000-0x00000000066B8000-memory.dmp

memory/3652-61-0x00000000065C0000-0x00000000066B8000-memory.dmp

memory/3652-67-0x00000000065C0000-0x00000000066B8000-memory.dmp

memory/3652-65-0x00000000065C0000-0x00000000066B8000-memory.dmp

memory/3652-63-0x00000000065C0000-0x00000000066B8000-memory.dmp

memory/3652-59-0x00000000065C0000-0x00000000066B8000-memory.dmp

memory/3652-57-0x00000000065C0000-0x00000000066B8000-memory.dmp

memory/3652-55-0x00000000065C0000-0x00000000066B8000-memory.dmp

memory/3652-53-0x00000000065C0000-0x00000000066B8000-memory.dmp

memory/3652-51-0x00000000065C0000-0x00000000066B8000-memory.dmp

memory/3652-49-0x00000000065C0000-0x00000000066B8000-memory.dmp

memory/3652-47-0x00000000065C0000-0x00000000066B8000-memory.dmp

memory/3652-43-0x00000000065C0000-0x00000000066B8000-memory.dmp

memory/3652-41-0x00000000065C0000-0x00000000066B8000-memory.dmp

memory/3652-45-0x00000000065C0000-0x00000000066B8000-memory.dmp

memory/3652-39-0x00000000065C0000-0x00000000066B8000-memory.dmp

memory/3652-37-0x00000000065C0000-0x00000000066B8000-memory.dmp

memory/3652-35-0x00000000065C0000-0x00000000066B8000-memory.dmp

memory/3652-33-0x00000000065C0000-0x00000000066B8000-memory.dmp

memory/3652-31-0x00000000065C0000-0x00000000066B8000-memory.dmp

memory/3652-29-0x00000000065C0000-0x00000000066B8000-memory.dmp

memory/3652-25-0x00000000065C0000-0x00000000066B8000-memory.dmp

memory/3652-23-0x00000000065C0000-0x00000000066B8000-memory.dmp

memory/3652-21-0x00000000065C0000-0x00000000066B8000-memory.dmp

memory/3652-19-0x00000000065C0000-0x00000000066B8000-memory.dmp

memory/3652-15-0x00000000065C0000-0x00000000066B8000-memory.dmp

memory/3652-13-0x00000000065C0000-0x00000000066B8000-memory.dmp

memory/3652-9-0x00000000065C0000-0x00000000066B8000-memory.dmp

memory/3652-7-0x00000000065C0000-0x00000000066B8000-memory.dmp

memory/3652-5-0x00000000065C0000-0x00000000066B8000-memory.dmp

memory/3652-27-0x00000000065C0000-0x00000000066B8000-memory.dmp

memory/3652-4-0x00000000065C0000-0x00000000066B8000-memory.dmp

memory/3652-898-0x000000007446E000-0x000000007446F000-memory.dmp

memory/3652-1079-0x0000000074460000-0x0000000074C10000-memory.dmp

memory/3652-1080-0x0000000074460000-0x0000000074C10000-memory.dmp

memory/3652-1081-0x0000000006800000-0x0000000006878000-memory.dmp

memory/3652-1082-0x0000000006880000-0x00000000068CC000-memory.dmp

memory/3652-1083-0x00000000071B0000-0x0000000007754000-memory.dmp

memory/3652-1084-0x0000000006AA0000-0x0000000006AF4000-memory.dmp

memory/3652-1088-0x0000000074460000-0x0000000074C10000-memory.dmp

memory/3652-1089-0x0000000074460000-0x0000000074C10000-memory.dmp

memory/3652-1090-0x0000000074460000-0x0000000074C10000-memory.dmp

memory/1152-1092-0x0000000000400000-0x000000000042F000-memory.dmp

memory/3652-1095-0x0000000074460000-0x0000000074C10000-memory.dmp

memory/1152-1093-0x00000000015C0000-0x000000000190A000-memory.dmp

memory/1152-1097-0x00000000014A0000-0x00000000014B5000-memory.dmp

memory/3420-1098-0x0000000008970000-0x0000000008AAE000-memory.dmp

memory/1152-1096-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2952-1101-0x0000000000B60000-0x0000000000B6A000-memory.dmp

memory/3420-1103-0x0000000008970000-0x0000000008AAE000-memory.dmp

memory/3420-1106-0x0000000008AB0000-0x0000000008BE9000-memory.dmp

memory/3420-1109-0x0000000008AB0000-0x0000000008BE9000-memory.dmp