Malware Analysis Report

2025-01-18 12:40

Sample ID 240402-mmn1esfb6t
Target 8e0cab6e15c8ecf53d170b396a5cdb6db74f1a8cc5bfd408ef5d480f25fa358c.zip
SHA256 2ead5f2ff5b6b59a17d8dab22e8d9fb267c7b9e56685aa2a43845b1e0e5257a1
Tags
formbook ns03 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

2ead5f2ff5b6b59a17d8dab22e8d9fb267c7b9e56685aa2a43845b1e0e5257a1

Threat Level: Known bad

The file 8e0cab6e15c8ecf53d170b396a5cdb6db74f1a8cc5bfd408ef5d480f25fa358c.zip was found to be: Known bad.

Malicious Activity Summary

formbook ns03 rat spyware stealer trojan

Formbook

Formbook payload

Blocklisted process makes network request

Deletes itself

Suspicious use of SetThreadContext

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious use of UnmapMainImage

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-04-02 10:35

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-02 10:35

Reported

2024-04-02 10:37

Platform

win7-20240221-en

Max time kernel

150s

Max time network

128s

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

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 1924 set thread context of 2536 N/A C:\Users\Admin\AppData\Local\Temp\bnY2j1hTDlb4vxF.exe C:\Users\Admin\AppData\Local\Temp\bnY2j1hTDlb4vxF.exe
PID 2536 set thread context of 1228 N/A C:\Users\Admin\AppData\Local\Temp\bnY2j1hTDlb4vxF.exe C:\Windows\Explorer.EXE
PID 2112 set thread context of 1228 N/A C:\Windows\SysWOW64\cmstp.exe C:\Windows\Explorer.EXE

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\bnY2j1hTDlb4vxF.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\cmstp.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1924 wrote to memory of 2536 N/A C:\Users\Admin\AppData\Local\Temp\bnY2j1hTDlb4vxF.exe C:\Users\Admin\AppData\Local\Temp\bnY2j1hTDlb4vxF.exe
PID 1924 wrote to memory of 2536 N/A C:\Users\Admin\AppData\Local\Temp\bnY2j1hTDlb4vxF.exe C:\Users\Admin\AppData\Local\Temp\bnY2j1hTDlb4vxF.exe
PID 1924 wrote to memory of 2536 N/A C:\Users\Admin\AppData\Local\Temp\bnY2j1hTDlb4vxF.exe C:\Users\Admin\AppData\Local\Temp\bnY2j1hTDlb4vxF.exe
PID 1924 wrote to memory of 2536 N/A C:\Users\Admin\AppData\Local\Temp\bnY2j1hTDlb4vxF.exe C:\Users\Admin\AppData\Local\Temp\bnY2j1hTDlb4vxF.exe
PID 1924 wrote to memory of 2536 N/A C:\Users\Admin\AppData\Local\Temp\bnY2j1hTDlb4vxF.exe C:\Users\Admin\AppData\Local\Temp\bnY2j1hTDlb4vxF.exe
PID 1924 wrote to memory of 2536 N/A C:\Users\Admin\AppData\Local\Temp\bnY2j1hTDlb4vxF.exe C:\Users\Admin\AppData\Local\Temp\bnY2j1hTDlb4vxF.exe
PID 1924 wrote to memory of 2536 N/A C:\Users\Admin\AppData\Local\Temp\bnY2j1hTDlb4vxF.exe C:\Users\Admin\AppData\Local\Temp\bnY2j1hTDlb4vxF.exe
PID 1228 wrote to memory of 2112 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\cmstp.exe
PID 1228 wrote to memory of 2112 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\cmstp.exe
PID 1228 wrote to memory of 2112 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\cmstp.exe
PID 1228 wrote to memory of 2112 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\cmstp.exe
PID 1228 wrote to memory of 2112 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\cmstp.exe
PID 1228 wrote to memory of 2112 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\cmstp.exe
PID 1228 wrote to memory of 2112 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\cmstp.exe
PID 2112 wrote to memory of 2472 N/A C:\Windows\SysWOW64\cmstp.exe C:\Windows\SysWOW64\cmd.exe
PID 2112 wrote to memory of 2472 N/A C:\Windows\SysWOW64\cmstp.exe C:\Windows\SysWOW64\cmd.exe
PID 2112 wrote to memory of 2472 N/A C:\Windows\SysWOW64\cmstp.exe C:\Windows\SysWOW64\cmd.exe
PID 2112 wrote to memory of 2472 N/A C:\Windows\SysWOW64\cmstp.exe C:\Windows\SysWOW64\cmd.exe

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\bnY2j1hTDlb4vxF.exe

"C:\Users\Admin\AppData\Local\Temp\bnY2j1hTDlb4vxF.exe"

C:\Users\Admin\AppData\Local\Temp\bnY2j1hTDlb4vxF.exe

"C:\Users\Admin\AppData\Local\Temp\bnY2j1hTDlb4vxF.exe"

C:\Windows\SysWOW64\cmstp.exe

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

C:\Windows\SysWOW64\cmd.exe

/c del "C:\Users\Admin\AppData\Local\Temp\bnY2j1hTDlb4vxF.exe"

Network

N/A

Files

memory/1924-0-0x0000000000D60000-0x0000000000DFC000-memory.dmp

memory/1924-1-0x0000000073F40000-0x000000007462E000-memory.dmp

memory/1924-2-0x0000000004780000-0x00000000047C0000-memory.dmp

memory/1924-3-0x00000000003A0000-0x00000000003B4000-memory.dmp

memory/1924-5-0x0000000000460000-0x000000000046C000-memory.dmp

memory/1924-4-0x0000000000450000-0x000000000045A000-memory.dmp

memory/1924-6-0x00000000051B0000-0x0000000005226000-memory.dmp

memory/2536-7-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2536-11-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2536-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/1924-12-0x0000000073F40000-0x000000007462E000-memory.dmp

memory/2536-8-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2536-13-0x00000000009E0000-0x0000000000CE3000-memory.dmp

memory/2536-16-0x00000000001B0000-0x00000000001C4000-memory.dmp

memory/1228-18-0x0000000006C40000-0x0000000006D41000-memory.dmp

memory/1228-17-0x0000000003DC0000-0x0000000003FC0000-memory.dmp

memory/2536-15-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2112-19-0x0000000000150000-0x0000000000168000-memory.dmp

memory/2112-20-0x0000000000150000-0x0000000000168000-memory.dmp

memory/2112-21-0x00000000000D0000-0x00000000000FF000-memory.dmp

memory/2112-22-0x0000000001F20000-0x0000000002223000-memory.dmp

memory/2112-23-0x00000000000D0000-0x00000000000FF000-memory.dmp

memory/2112-24-0x0000000001D60000-0x0000000001DF3000-memory.dmp

memory/1228-27-0x0000000006C40000-0x0000000006D41000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-02 10:35

Reported

2024-04-02 10:37

Platform

win10v2004-20240226-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
N/A N/A N/A N/A

Blocklisted process makes network request

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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 4296 set thread context of 4640 N/A C:\Users\Admin\AppData\Local\Temp\bnY2j1hTDlb4vxF.exe C:\Users\Admin\AppData\Local\Temp\bnY2j1hTDlb4vxF.exe
PID 4640 set thread context of 3444 N/A C:\Users\Admin\AppData\Local\Temp\bnY2j1hTDlb4vxF.exe C:\Windows\Explorer.EXE
PID 2308 set thread context of 3444 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\Explorer.EXE

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\bnY2j1hTDlb4vxF.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\bnY2j1hTDlb4vxF.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\bnY2j1hTDlb4vxF.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\bnY2j1hTDlb4vxF.exe N/A
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\bnY2j1hTDlb4vxF.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\cmd.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\bnY2j1hTDlb4vxF.exe

"C:\Users\Admin\AppData\Local\Temp\bnY2j1hTDlb4vxF.exe"

C:\Users\Admin\AppData\Local\Temp\bnY2j1hTDlb4vxF.exe

"C:\Users\Admin\AppData\Local\Temp\bnY2j1hTDlb4vxF.exe"

C:\Windows\SysWOW64\cmd.exe

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

C:\Windows\SysWOW64\cmd.exe

/c del "C:\Users\Admin\AppData\Local\Temp\bnY2j1hTDlb4vxF.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 74.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 79.121.231.20.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 24.66.18.2.in-addr.arpa udp
US 8.8.8.8:53 www.elizabethsbookshelf.com udp
US 8.8.8.8:53 218.110.86.104.in-addr.arpa udp
US 8.8.8.8:53 www.rctjuc.shop udp
HK 16.163.104.80:80 www.rctjuc.shop tcp
US 8.8.8.8:53 www.rctjuc.shop udp
HK 16.163.104.80:80 www.rctjuc.shop tcp
US 8.8.8.8:53 www.grupooceanique.com udp
US 8.8.8.8:53 202.110.86.104.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 www.signature-perfect.com udp
HK 154.209.167.59:80 www.signature-perfect.com tcp
US 8.8.8.8:53 59.167.209.154.in-addr.arpa udp
US 8.8.8.8:53 www.mahbubamaahi.com udp
US 144.208.70.108:80 www.mahbubamaahi.com tcp
US 8.8.8.8:53 108.70.208.144.in-addr.arpa udp
US 8.8.8.8:53 www.dipity.tech udp
US 162.255.119.199:80 www.dipity.tech tcp
US 8.8.8.8:53 199.119.255.162.in-addr.arpa udp

Files

memory/4296-2-0x0000000005430000-0x00000000059D4000-memory.dmp

memory/4296-3-0x0000000004F20000-0x0000000004FB2000-memory.dmp

memory/4296-1-0x0000000074E30000-0x00000000755E0000-memory.dmp

memory/4296-4-0x0000000004E20000-0x0000000004E30000-memory.dmp

memory/4296-0-0x0000000000430000-0x00000000004CC000-memory.dmp

memory/4296-5-0x0000000004EC0000-0x0000000004ECA000-memory.dmp

memory/4296-6-0x00000000053E0000-0x00000000053F4000-memory.dmp

memory/4296-8-0x0000000005410000-0x000000000541C000-memory.dmp

memory/4296-7-0x0000000005400000-0x000000000540A000-memory.dmp

memory/4296-9-0x0000000006170000-0x00000000061E6000-memory.dmp

memory/4296-10-0x0000000008B20000-0x0000000008BBC000-memory.dmp

memory/4640-11-0x0000000000400000-0x000000000042F000-memory.dmp

memory/4296-13-0x0000000074E30000-0x00000000755E0000-memory.dmp

memory/4640-14-0x00000000010F0000-0x000000000143A000-memory.dmp

memory/4640-16-0x0000000000400000-0x000000000042F000-memory.dmp

memory/4640-17-0x0000000000C20000-0x0000000000C34000-memory.dmp

memory/3444-18-0x0000000008880000-0x0000000008940000-memory.dmp

memory/2308-19-0x0000000000DE0000-0x0000000000E3A000-memory.dmp

memory/2308-21-0x0000000000DE0000-0x0000000000E3A000-memory.dmp

memory/2308-22-0x0000000000980000-0x00000000009AF000-memory.dmp

memory/2308-23-0x00000000011A0000-0x00000000014EA000-memory.dmp

memory/2308-24-0x0000000000980000-0x00000000009AF000-memory.dmp

memory/2308-26-0x0000000001040000-0x00000000010D3000-memory.dmp

memory/3444-27-0x0000000008880000-0x0000000008940000-memory.dmp

memory/3444-28-0x0000000008670000-0x0000000008790000-memory.dmp

memory/3444-30-0x0000000008670000-0x0000000008790000-memory.dmp

memory/3444-33-0x0000000008670000-0x0000000008790000-memory.dmp