Malware Analysis Report

2024-10-23 22:14

Sample ID 240717-vjvykatbrg
Target MalwareBazaar.2
SHA256 2a346621e42f809c9cbfaf01bd2baa682838165f5e24c7c945f855671fc457e4
Tags
formbook v15n 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

2a346621e42f809c9cbfaf01bd2baa682838165f5e24c7c945f855671fc457e4

Threat Level: Known bad

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

Malicious Activity Summary

formbook v15n rat spyware stealer trojan

Formbook

Formbook payload

Deletes itself

Suspicious use of SetThreadContext

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious behavior: MapViewOfSection

Gathers network information

Modifies registry class

Suspicious use of FindShellTrayWindow

Suspicious use of UnmapMainImage

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-07-17 17:01

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-17 17:01

Reported

2024-07-17 17:04

Platform

win7-20240704-en

Max time kernel

147s

Max time network

119s

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 2696 set thread context of 2832 N/A C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe
PID 2832 set thread context of 1180 N/A C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe C:\Windows\Explorer.EXE
PID 2752 set thread context of 1180 N/A C:\Windows\SysWOW64\explorer.exe C:\Windows\Explorer.EXE

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2696 wrote to memory of 2832 N/A C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe
PID 2696 wrote to memory of 2832 N/A C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe
PID 2696 wrote to memory of 2832 N/A C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe
PID 2696 wrote to memory of 2832 N/A C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe
PID 2696 wrote to memory of 2832 N/A C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe
PID 2696 wrote to memory of 2832 N/A C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe
PID 2696 wrote to memory of 2832 N/A C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe
PID 1180 wrote to memory of 2752 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\explorer.exe
PID 1180 wrote to memory of 2752 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\explorer.exe
PID 1180 wrote to memory of 2752 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\explorer.exe
PID 1180 wrote to memory of 2752 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\explorer.exe
PID 2752 wrote to memory of 2608 N/A C:\Windows\SysWOW64\explorer.exe C:\Windows\SysWOW64\cmd.exe
PID 2752 wrote to memory of 2608 N/A C:\Windows\SysWOW64\explorer.exe C:\Windows\SysWOW64\cmd.exe
PID 2752 wrote to memory of 2608 N/A C:\Windows\SysWOW64\explorer.exe C:\Windows\SysWOW64\cmd.exe
PID 2752 wrote to memory of 2608 N/A C:\Windows\SysWOW64\explorer.exe C:\Windows\SysWOW64\cmd.exe

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

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

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

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

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

C:\Windows\SysWOW64\explorer.exe

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

C:\Windows\SysWOW64\cmd.exe

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

Network

N/A

Files

memory/2696-0-0x0000000074B6E000-0x0000000074B6F000-memory.dmp

memory/2696-1-0x0000000000E40000-0x0000000000EEE000-memory.dmp

memory/2696-2-0x0000000074B60000-0x000000007524E000-memory.dmp

memory/2696-3-0x00000000004A0000-0x00000000004BA000-memory.dmp

memory/2696-4-0x0000000000530000-0x000000000053E000-memory.dmp

memory/2696-5-0x0000000004330000-0x00000000043A6000-memory.dmp

memory/2832-8-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2832-7-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2832-6-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2832-11-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2696-12-0x0000000074B60000-0x000000007524E000-memory.dmp

memory/2832-13-0x0000000000850000-0x0000000000B53000-memory.dmp

memory/2832-16-0x00000000001C0000-0x00000000001D5000-memory.dmp

memory/2832-15-0x0000000000400000-0x000000000042F000-memory.dmp

memory/1180-17-0x0000000003CB0000-0x0000000003D6E000-memory.dmp

memory/2752-18-0x0000000000BF0000-0x0000000000E71000-memory.dmp

memory/2752-19-0x0000000000BF0000-0x0000000000E71000-memory.dmp

memory/2752-20-0x0000000000080000-0x00000000000AF000-memory.dmp

memory/1180-23-0x0000000003CB0000-0x0000000003D6E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-17 17:01

Reported

2024-07-17 17:04

Platform

win10v2004-20240709-en

Max time kernel

149s

Max time network

154s

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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 5024 set thread context of 1256 N/A C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe
PID 1256 set thread context of 3412 N/A C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe C:\Windows\Explorer.EXE
PID 1256 set thread context of 3412 N/A C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe C:\Windows\Explorer.EXE
PID 4392 set thread context of 3412 N/A C:\Windows\SysWOW64\ipconfig.exe C:\Windows\Explorer.EXE

Gathers network information

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

Suspicious use of AdjustPrivilegeToken

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

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

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

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

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

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

C:\Windows\SysWOW64\ipconfig.exe

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

C:\Windows\SysWOW64\cmd.exe

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 75.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 147.142.123.92.in-addr.arpa udp
US 8.8.8.8:53 www.rotaryclubofmukono.com udp
US 173.236.253.21:80 www.rotaryclubofmukono.com tcp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 www.rotaryclubofmukono.com udp
US 173.236.253.21:80 www.rotaryclubofmukono.com tcp
US 8.8.8.8:53 www.rxforgive.com udp
US 3.33.130.190:80 www.rxforgive.com tcp
US 8.8.8.8:53 190.130.33.3.in-addr.arpa udp
US 8.8.8.8:53 www.wuhey.shop udp
US 8.8.8.8:53 19.229.111.52.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 10.27.171.150.in-addr.arpa udp
US 8.8.8.8:53 www.visualvarta.com udp
IN 89.117.188.72:80 www.visualvarta.com tcp
US 8.8.8.8:53 www.visualvarta.com udp
IN 89.117.188.72:80 www.visualvarta.com tcp
US 8.8.8.8:53 www.nijssenadventures.com udp
US 8.8.8.8:53 215.143.182.52.in-addr.arpa udp

Files

memory/5024-0-0x000000007440E000-0x000000007440F000-memory.dmp

memory/5024-1-0x0000000000030000-0x00000000000DE000-memory.dmp

memory/5024-2-0x0000000005060000-0x0000000005604000-memory.dmp

memory/5024-3-0x0000000004B50000-0x0000000004BE2000-memory.dmp

memory/5024-4-0x0000000004AE0000-0x0000000004AEA000-memory.dmp

memory/5024-5-0x0000000074400000-0x0000000074BB0000-memory.dmp

memory/5024-6-0x0000000004D60000-0x0000000004D7A000-memory.dmp

memory/5024-7-0x0000000005030000-0x000000000503E000-memory.dmp

memory/5024-8-0x0000000005D10000-0x0000000005D86000-memory.dmp

memory/5024-9-0x00000000084D0000-0x000000000856C000-memory.dmp

memory/1256-10-0x0000000000400000-0x000000000042F000-memory.dmp

memory/5024-12-0x0000000074400000-0x0000000074BB0000-memory.dmp

memory/1256-13-0x0000000001AC0000-0x0000000001E0A000-memory.dmp

memory/1256-15-0x0000000000400000-0x000000000042F000-memory.dmp

memory/1256-16-0x00000000019C0000-0x00000000019D5000-memory.dmp

memory/3412-17-0x0000000008620000-0x0000000008780000-memory.dmp

memory/1256-19-0x0000000000400000-0x000000000042F000-memory.dmp

memory/1256-20-0x0000000003730000-0x0000000003745000-memory.dmp

memory/3412-21-0x0000000002AC0000-0x0000000002B77000-memory.dmp

memory/4392-22-0x0000000000D80000-0x0000000000D8B000-memory.dmp

memory/4392-23-0x0000000000D80000-0x0000000000D8B000-memory.dmp

memory/4392-24-0x0000000001260000-0x000000000128F000-memory.dmp

memory/3412-26-0x0000000008620000-0x0000000008780000-memory.dmp

memory/3412-28-0x0000000007240000-0x00000000072F9000-memory.dmp

memory/3412-27-0x0000000002AC0000-0x0000000002B77000-memory.dmp

memory/3412-29-0x0000000007240000-0x00000000072F9000-memory.dmp

memory/3412-33-0x0000000007240000-0x00000000072F9000-memory.dmp