Malware Analysis Report

2024-10-23 22:12

Sample ID 240718-wfp4kszbqp
Target 81e716048fef66f3f6ccdebc7df3867ebb4ab9cda48578702345203ba2a6d74d.exe
SHA256 81e716048fef66f3f6ccdebc7df3867ebb4ab9cda48578702345203ba2a6d74d
Tags
formbook rn94 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

81e716048fef66f3f6ccdebc7df3867ebb4ab9cda48578702345203ba2a6d74d

Threat Level: Known bad

The file 81e716048fef66f3f6ccdebc7df3867ebb4ab9cda48578702345203ba2a6d74d.exe was found to be: Known bad.

Malicious Activity Summary

formbook rn94 rat spyware stealer trojan

Formbook

Formbook payload

Suspicious use of SetThreadContext

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-07-18 17:52

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-18 17:52

Reported

2024-07-18 17:54

Platform

win7-20240704-en

Max time kernel

119s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\81e716048fef66f3f6ccdebc7df3867ebb4ab9cda48578702345203ba2a6d74d.exe"

Signatures

Formbook

trojan spyware stealer formbook

Formbook payload

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

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\81e716048fef66f3f6ccdebc7df3867ebb4ab9cda48578702345203ba2a6d74d.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2716 wrote to memory of 1696 N/A C:\Users\Admin\AppData\Local\Temp\81e716048fef66f3f6ccdebc7df3867ebb4ab9cda48578702345203ba2a6d74d.exe C:\Users\Admin\AppData\Local\Temp\81e716048fef66f3f6ccdebc7df3867ebb4ab9cda48578702345203ba2a6d74d.exe
PID 2716 wrote to memory of 1696 N/A C:\Users\Admin\AppData\Local\Temp\81e716048fef66f3f6ccdebc7df3867ebb4ab9cda48578702345203ba2a6d74d.exe C:\Users\Admin\AppData\Local\Temp\81e716048fef66f3f6ccdebc7df3867ebb4ab9cda48578702345203ba2a6d74d.exe
PID 2716 wrote to memory of 1696 N/A C:\Users\Admin\AppData\Local\Temp\81e716048fef66f3f6ccdebc7df3867ebb4ab9cda48578702345203ba2a6d74d.exe C:\Users\Admin\AppData\Local\Temp\81e716048fef66f3f6ccdebc7df3867ebb4ab9cda48578702345203ba2a6d74d.exe
PID 2716 wrote to memory of 1696 N/A C:\Users\Admin\AppData\Local\Temp\81e716048fef66f3f6ccdebc7df3867ebb4ab9cda48578702345203ba2a6d74d.exe C:\Users\Admin\AppData\Local\Temp\81e716048fef66f3f6ccdebc7df3867ebb4ab9cda48578702345203ba2a6d74d.exe
PID 2716 wrote to memory of 1696 N/A C:\Users\Admin\AppData\Local\Temp\81e716048fef66f3f6ccdebc7df3867ebb4ab9cda48578702345203ba2a6d74d.exe C:\Users\Admin\AppData\Local\Temp\81e716048fef66f3f6ccdebc7df3867ebb4ab9cda48578702345203ba2a6d74d.exe
PID 2716 wrote to memory of 1696 N/A C:\Users\Admin\AppData\Local\Temp\81e716048fef66f3f6ccdebc7df3867ebb4ab9cda48578702345203ba2a6d74d.exe C:\Users\Admin\AppData\Local\Temp\81e716048fef66f3f6ccdebc7df3867ebb4ab9cda48578702345203ba2a6d74d.exe
PID 2716 wrote to memory of 1696 N/A C:\Users\Admin\AppData\Local\Temp\81e716048fef66f3f6ccdebc7df3867ebb4ab9cda48578702345203ba2a6d74d.exe C:\Users\Admin\AppData\Local\Temp\81e716048fef66f3f6ccdebc7df3867ebb4ab9cda48578702345203ba2a6d74d.exe

Processes

C:\Users\Admin\AppData\Local\Temp\81e716048fef66f3f6ccdebc7df3867ebb4ab9cda48578702345203ba2a6d74d.exe

"C:\Users\Admin\AppData\Local\Temp\81e716048fef66f3f6ccdebc7df3867ebb4ab9cda48578702345203ba2a6d74d.exe"

C:\Users\Admin\AppData\Local\Temp\81e716048fef66f3f6ccdebc7df3867ebb4ab9cda48578702345203ba2a6d74d.exe

"C:\Users\Admin\AppData\Local\Temp\81e716048fef66f3f6ccdebc7df3867ebb4ab9cda48578702345203ba2a6d74d.exe"

Network

N/A

Files

memory/2716-0-0x000000007441E000-0x000000007441F000-memory.dmp

memory/2716-1-0x0000000001200000-0x00000000012A2000-memory.dmp

memory/2716-2-0x0000000074410000-0x0000000074AFE000-memory.dmp

memory/2716-3-0x0000000000660000-0x000000000067A000-memory.dmp

memory/2716-4-0x0000000000610000-0x000000000061E000-memory.dmp

memory/2716-5-0x0000000000EA0000-0x0000000000F16000-memory.dmp

memory/1696-6-0x0000000000400000-0x000000000042F000-memory.dmp

memory/1696-12-0x0000000000400000-0x000000000042F000-memory.dmp

memory/1696-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/1696-8-0x0000000000400000-0x000000000042F000-memory.dmp

memory/1696-14-0x0000000000950000-0x0000000000C53000-memory.dmp

memory/2716-13-0x0000000074410000-0x0000000074AFE000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-18 17:52

Reported

2024-07-18 17:54

Platform

win10v2004-20240709-en

Max time kernel

140s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\81e716048fef66f3f6ccdebc7df3867ebb4ab9cda48578702345203ba2a6d74d.exe"

Signatures

Formbook

trojan spyware stealer formbook

Formbook payload

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 5000 wrote to memory of 4388 N/A C:\Users\Admin\AppData\Local\Temp\81e716048fef66f3f6ccdebc7df3867ebb4ab9cda48578702345203ba2a6d74d.exe C:\Users\Admin\AppData\Local\Temp\81e716048fef66f3f6ccdebc7df3867ebb4ab9cda48578702345203ba2a6d74d.exe
PID 5000 wrote to memory of 4388 N/A C:\Users\Admin\AppData\Local\Temp\81e716048fef66f3f6ccdebc7df3867ebb4ab9cda48578702345203ba2a6d74d.exe C:\Users\Admin\AppData\Local\Temp\81e716048fef66f3f6ccdebc7df3867ebb4ab9cda48578702345203ba2a6d74d.exe
PID 5000 wrote to memory of 4388 N/A C:\Users\Admin\AppData\Local\Temp\81e716048fef66f3f6ccdebc7df3867ebb4ab9cda48578702345203ba2a6d74d.exe C:\Users\Admin\AppData\Local\Temp\81e716048fef66f3f6ccdebc7df3867ebb4ab9cda48578702345203ba2a6d74d.exe
PID 5000 wrote to memory of 4388 N/A C:\Users\Admin\AppData\Local\Temp\81e716048fef66f3f6ccdebc7df3867ebb4ab9cda48578702345203ba2a6d74d.exe C:\Users\Admin\AppData\Local\Temp\81e716048fef66f3f6ccdebc7df3867ebb4ab9cda48578702345203ba2a6d74d.exe
PID 5000 wrote to memory of 4388 N/A C:\Users\Admin\AppData\Local\Temp\81e716048fef66f3f6ccdebc7df3867ebb4ab9cda48578702345203ba2a6d74d.exe C:\Users\Admin\AppData\Local\Temp\81e716048fef66f3f6ccdebc7df3867ebb4ab9cda48578702345203ba2a6d74d.exe
PID 5000 wrote to memory of 4388 N/A C:\Users\Admin\AppData\Local\Temp\81e716048fef66f3f6ccdebc7df3867ebb4ab9cda48578702345203ba2a6d74d.exe C:\Users\Admin\AppData\Local\Temp\81e716048fef66f3f6ccdebc7df3867ebb4ab9cda48578702345203ba2a6d74d.exe

Processes

C:\Users\Admin\AppData\Local\Temp\81e716048fef66f3f6ccdebc7df3867ebb4ab9cda48578702345203ba2a6d74d.exe

"C:\Users\Admin\AppData\Local\Temp\81e716048fef66f3f6ccdebc7df3867ebb4ab9cda48578702345203ba2a6d74d.exe"

C:\Users\Admin\AppData\Local\Temp\81e716048fef66f3f6ccdebc7df3867ebb4ab9cda48578702345203ba2a6d74d.exe

"C:\Users\Admin\AppData\Local\Temp\81e716048fef66f3f6ccdebc7df3867ebb4ab9cda48578702345203ba2a6d74d.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 0.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 25.140.123.92.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 192.142.123.92.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.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

Files

memory/5000-0-0x000000007524E000-0x000000007524F000-memory.dmp

memory/5000-1-0x00000000006C0000-0x0000000000762000-memory.dmp

memory/5000-2-0x0000000005600000-0x0000000005BA4000-memory.dmp

memory/5000-3-0x0000000005050000-0x00000000050E2000-memory.dmp

memory/5000-4-0x0000000005020000-0x000000000502A000-memory.dmp

memory/5000-5-0x0000000075240000-0x00000000759F0000-memory.dmp

memory/5000-6-0x0000000006990000-0x00000000069AA000-memory.dmp

memory/5000-7-0x00000000061B0000-0x00000000061BE000-memory.dmp

memory/5000-8-0x0000000006220000-0x0000000006296000-memory.dmp

memory/5000-9-0x0000000008D20000-0x0000000008DBC000-memory.dmp

memory/4388-10-0x0000000000400000-0x000000000042F000-memory.dmp

memory/5000-12-0x0000000075240000-0x00000000759F0000-memory.dmp

memory/4388-13-0x0000000001120000-0x000000000146A000-memory.dmp