Malware Analysis Report

2025-08-05 16:22

Sample ID 231023-xjchbsef33
Target NEAS.e3bad3b72d6b9d9572d3c2df6e6e02b08366065d4dca0d65d868c4d7d9ff52c8exe_JC.exe
SHA256 e3bad3b72d6b9d9572d3c2df6e6e02b08366065d4dca0d65d868c4d7d9ff52c8
Tags
formbook ls02 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

e3bad3b72d6b9d9572d3c2df6e6e02b08366065d4dca0d65d868c4d7d9ff52c8

Threat Level: Known bad

The file NEAS.e3bad3b72d6b9d9572d3c2df6e6e02b08366065d4dca0d65d868c4d7d9ff52c8exe_JC.exe was found to be: Known bad.

Malicious Activity Summary

formbook ls02 rat spyware stealer trojan

Formbook

Formbook payload

Suspicious use of SetThreadContext

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2023-10-23 18:52

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-10-23 18:52

Reported

2023-10-23 19:00

Platform

win7-20231020-en

Max time kernel

121s

Max time network

124s

Command Line

"C:\Users\Admin\AppData\Local\Temp\NEAS.e3bad3b72d6b9d9572d3c2df6e6e02b08366065d4dca0d65d868c4d7d9ff52c8exe_JC.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\NEAS.e3bad3b72d6b9d9572d3c2df6e6e02b08366065d4dca0d65d868c4d7d9ff52c8exe_JC.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2468 wrote to memory of 2672 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.e3bad3b72d6b9d9572d3c2df6e6e02b08366065d4dca0d65d868c4d7d9ff52c8exe_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.e3bad3b72d6b9d9572d3c2df6e6e02b08366065d4dca0d65d868c4d7d9ff52c8exe_JC.exe
PID 2468 wrote to memory of 2672 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.e3bad3b72d6b9d9572d3c2df6e6e02b08366065d4dca0d65d868c4d7d9ff52c8exe_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.e3bad3b72d6b9d9572d3c2df6e6e02b08366065d4dca0d65d868c4d7d9ff52c8exe_JC.exe
PID 2468 wrote to memory of 2672 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.e3bad3b72d6b9d9572d3c2df6e6e02b08366065d4dca0d65d868c4d7d9ff52c8exe_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.e3bad3b72d6b9d9572d3c2df6e6e02b08366065d4dca0d65d868c4d7d9ff52c8exe_JC.exe
PID 2468 wrote to memory of 2672 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.e3bad3b72d6b9d9572d3c2df6e6e02b08366065d4dca0d65d868c4d7d9ff52c8exe_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.e3bad3b72d6b9d9572d3c2df6e6e02b08366065d4dca0d65d868c4d7d9ff52c8exe_JC.exe
PID 2468 wrote to memory of 2672 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.e3bad3b72d6b9d9572d3c2df6e6e02b08366065d4dca0d65d868c4d7d9ff52c8exe_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.e3bad3b72d6b9d9572d3c2df6e6e02b08366065d4dca0d65d868c4d7d9ff52c8exe_JC.exe
PID 2468 wrote to memory of 2672 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.e3bad3b72d6b9d9572d3c2df6e6e02b08366065d4dca0d65d868c4d7d9ff52c8exe_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.e3bad3b72d6b9d9572d3c2df6e6e02b08366065d4dca0d65d868c4d7d9ff52c8exe_JC.exe
PID 2468 wrote to memory of 2672 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.e3bad3b72d6b9d9572d3c2df6e6e02b08366065d4dca0d65d868c4d7d9ff52c8exe_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.e3bad3b72d6b9d9572d3c2df6e6e02b08366065d4dca0d65d868c4d7d9ff52c8exe_JC.exe

Processes

C:\Users\Admin\AppData\Local\Temp\NEAS.e3bad3b72d6b9d9572d3c2df6e6e02b08366065d4dca0d65d868c4d7d9ff52c8exe_JC.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.e3bad3b72d6b9d9572d3c2df6e6e02b08366065d4dca0d65d868c4d7d9ff52c8exe_JC.exe"

C:\Users\Admin\AppData\Local\Temp\NEAS.e3bad3b72d6b9d9572d3c2df6e6e02b08366065d4dca0d65d868c4d7d9ff52c8exe_JC.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.e3bad3b72d6b9d9572d3c2df6e6e02b08366065d4dca0d65d868c4d7d9ff52c8exe_JC.exe"

Network

N/A

Files

memory/2468-0-0x0000000000A20000-0x0000000000AB6000-memory.dmp

memory/2468-1-0x0000000073E00000-0x00000000744EE000-memory.dmp

memory/2468-2-0x0000000004C90000-0x0000000004CD0000-memory.dmp

memory/2468-3-0x0000000000420000-0x0000000000438000-memory.dmp

memory/2468-4-0x0000000073E00000-0x00000000744EE000-memory.dmp

memory/2468-5-0x0000000004C90000-0x0000000004CD0000-memory.dmp

memory/2468-6-0x0000000000300000-0x0000000000310000-memory.dmp

memory/2468-7-0x0000000004E70000-0x0000000004EDE000-memory.dmp

memory/2672-8-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2672-9-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2672-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2672-12-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2468-13-0x0000000073E00000-0x00000000744EE000-memory.dmp

memory/2672-14-0x0000000000AC0000-0x0000000000DC3000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-10-23 18:52

Reported

2023-10-23 19:03

Platform

win10v2004-20231023-en

Max time kernel

149s

Max time network

155s

Command Line

"C:\Users\Admin\AppData\Local\Temp\NEAS.e3bad3b72d6b9d9572d3c2df6e6e02b08366065d4dca0d65d868c4d7d9ff52c8exe_JC.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 AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\NEAS.e3bad3b72d6b9d9572d3c2df6e6e02b08366065d4dca0d65d868c4d7d9ff52c8exe_JC.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2036 wrote to memory of 4776 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.e3bad3b72d6b9d9572d3c2df6e6e02b08366065d4dca0d65d868c4d7d9ff52c8exe_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.e3bad3b72d6b9d9572d3c2df6e6e02b08366065d4dca0d65d868c4d7d9ff52c8exe_JC.exe
PID 2036 wrote to memory of 4776 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.e3bad3b72d6b9d9572d3c2df6e6e02b08366065d4dca0d65d868c4d7d9ff52c8exe_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.e3bad3b72d6b9d9572d3c2df6e6e02b08366065d4dca0d65d868c4d7d9ff52c8exe_JC.exe
PID 2036 wrote to memory of 4776 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.e3bad3b72d6b9d9572d3c2df6e6e02b08366065d4dca0d65d868c4d7d9ff52c8exe_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.e3bad3b72d6b9d9572d3c2df6e6e02b08366065d4dca0d65d868c4d7d9ff52c8exe_JC.exe
PID 2036 wrote to memory of 4944 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.e3bad3b72d6b9d9572d3c2df6e6e02b08366065d4dca0d65d868c4d7d9ff52c8exe_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.e3bad3b72d6b9d9572d3c2df6e6e02b08366065d4dca0d65d868c4d7d9ff52c8exe_JC.exe
PID 2036 wrote to memory of 4944 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.e3bad3b72d6b9d9572d3c2df6e6e02b08366065d4dca0d65d868c4d7d9ff52c8exe_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.e3bad3b72d6b9d9572d3c2df6e6e02b08366065d4dca0d65d868c4d7d9ff52c8exe_JC.exe
PID 2036 wrote to memory of 4944 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.e3bad3b72d6b9d9572d3c2df6e6e02b08366065d4dca0d65d868c4d7d9ff52c8exe_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.e3bad3b72d6b9d9572d3c2df6e6e02b08366065d4dca0d65d868c4d7d9ff52c8exe_JC.exe
PID 2036 wrote to memory of 4944 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.e3bad3b72d6b9d9572d3c2df6e6e02b08366065d4dca0d65d868c4d7d9ff52c8exe_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.e3bad3b72d6b9d9572d3c2df6e6e02b08366065d4dca0d65d868c4d7d9ff52c8exe_JC.exe
PID 2036 wrote to memory of 4944 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.e3bad3b72d6b9d9572d3c2df6e6e02b08366065d4dca0d65d868c4d7d9ff52c8exe_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.e3bad3b72d6b9d9572d3c2df6e6e02b08366065d4dca0d65d868c4d7d9ff52c8exe_JC.exe
PID 2036 wrote to memory of 4944 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.e3bad3b72d6b9d9572d3c2df6e6e02b08366065d4dca0d65d868c4d7d9ff52c8exe_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.e3bad3b72d6b9d9572d3c2df6e6e02b08366065d4dca0d65d868c4d7d9ff52c8exe_JC.exe

Processes

C:\Users\Admin\AppData\Local\Temp\NEAS.e3bad3b72d6b9d9572d3c2df6e6e02b08366065d4dca0d65d868c4d7d9ff52c8exe_JC.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.e3bad3b72d6b9d9572d3c2df6e6e02b08366065d4dca0d65d868c4d7d9ff52c8exe_JC.exe"

C:\Users\Admin\AppData\Local\Temp\NEAS.e3bad3b72d6b9d9572d3c2df6e6e02b08366065d4dca0d65d868c4d7d9ff52c8exe_JC.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.e3bad3b72d6b9d9572d3c2df6e6e02b08366065d4dca0d65d868c4d7d9ff52c8exe_JC.exe"

C:\Users\Admin\AppData\Local\Temp\NEAS.e3bad3b72d6b9d9572d3c2df6e6e02b08366065d4dca0d65d868c4d7d9ff52c8exe_JC.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.e3bad3b72d6b9d9572d3c2df6e6e02b08366065d4dca0d65d868c4d7d9ff52c8exe_JC.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 211.143.182.52.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 29.81.57.23.in-addr.arpa udp
US 8.8.8.8:53 68.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp

Files

memory/2036-0-0x0000000074D70000-0x0000000075520000-memory.dmp

memory/2036-1-0x0000000000230000-0x00000000002C6000-memory.dmp

memory/2036-2-0x00000000052D0000-0x0000000005874000-memory.dmp

memory/2036-3-0x0000000004D20000-0x0000000004DB2000-memory.dmp

memory/2036-4-0x0000000004EC0000-0x0000000004ED0000-memory.dmp

memory/2036-5-0x0000000004CB0000-0x0000000004CBA000-memory.dmp

memory/2036-6-0x0000000004F70000-0x000000000500C000-memory.dmp

memory/2036-7-0x0000000004F40000-0x0000000004F58000-memory.dmp

memory/2036-8-0x0000000074D70000-0x0000000075520000-memory.dmp

memory/2036-9-0x0000000004EC0000-0x0000000004ED0000-memory.dmp

memory/2036-10-0x0000000004CC0000-0x0000000004CD0000-memory.dmp

memory/2036-11-0x0000000006200000-0x000000000626E000-memory.dmp

memory/4944-12-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2036-14-0x0000000074D70000-0x0000000075520000-memory.dmp

memory/4944-15-0x00000000013E0000-0x000000000172A000-memory.dmp