Malware Analysis Report

2025-08-05 16:20

Sample ID 231023-waka5sde37
Target NEAS.a00ea565f9db4d7b4eeef36c77c6635a84ef610ad73890a2b0bd9852ff6d73f7exe_JC.exe
SHA256 a00ea565f9db4d7b4eeef36c77c6635a84ef610ad73890a2b0bd9852ff6d73f7
Tags
formbook k0p2 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

a00ea565f9db4d7b4eeef36c77c6635a84ef610ad73890a2b0bd9852ff6d73f7

Threat Level: Known bad

The file NEAS.a00ea565f9db4d7b4eeef36c77c6635a84ef610ad73890a2b0bd9852ff6d73f7exe_JC.exe was found to be: Known bad.

Malicious Activity Summary

formbook k0p2 rat spyware stealer trojan

Formbook

Formbook payload

Suspicious use of SetThreadContext

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2023-10-23 17:43

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-10-23 17:43

Reported

2023-10-23 17:53

Platform

win7-20231020-en

Max time kernel

121s

Max time network

127s

Command Line

"C:\Users\Admin\AppData\Local\Temp\NEAS.a00ea565f9db4d7b4eeef36c77c6635a84ef610ad73890a2b0bd9852ff6d73f7exe_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.a00ea565f9db4d7b4eeef36c77c6635a84ef610ad73890a2b0bd9852ff6d73f7exe_JC.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2088 wrote to memory of 2672 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.a00ea565f9db4d7b4eeef36c77c6635a84ef610ad73890a2b0bd9852ff6d73f7exe_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.a00ea565f9db4d7b4eeef36c77c6635a84ef610ad73890a2b0bd9852ff6d73f7exe_JC.exe
PID 2088 wrote to memory of 2672 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.a00ea565f9db4d7b4eeef36c77c6635a84ef610ad73890a2b0bd9852ff6d73f7exe_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.a00ea565f9db4d7b4eeef36c77c6635a84ef610ad73890a2b0bd9852ff6d73f7exe_JC.exe
PID 2088 wrote to memory of 2672 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.a00ea565f9db4d7b4eeef36c77c6635a84ef610ad73890a2b0bd9852ff6d73f7exe_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.a00ea565f9db4d7b4eeef36c77c6635a84ef610ad73890a2b0bd9852ff6d73f7exe_JC.exe
PID 2088 wrote to memory of 2672 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.a00ea565f9db4d7b4eeef36c77c6635a84ef610ad73890a2b0bd9852ff6d73f7exe_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.a00ea565f9db4d7b4eeef36c77c6635a84ef610ad73890a2b0bd9852ff6d73f7exe_JC.exe
PID 2088 wrote to memory of 2672 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.a00ea565f9db4d7b4eeef36c77c6635a84ef610ad73890a2b0bd9852ff6d73f7exe_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.a00ea565f9db4d7b4eeef36c77c6635a84ef610ad73890a2b0bd9852ff6d73f7exe_JC.exe
PID 2088 wrote to memory of 2672 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.a00ea565f9db4d7b4eeef36c77c6635a84ef610ad73890a2b0bd9852ff6d73f7exe_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.a00ea565f9db4d7b4eeef36c77c6635a84ef610ad73890a2b0bd9852ff6d73f7exe_JC.exe
PID 2088 wrote to memory of 2672 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.a00ea565f9db4d7b4eeef36c77c6635a84ef610ad73890a2b0bd9852ff6d73f7exe_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.a00ea565f9db4d7b4eeef36c77c6635a84ef610ad73890a2b0bd9852ff6d73f7exe_JC.exe

Processes

C:\Users\Admin\AppData\Local\Temp\NEAS.a00ea565f9db4d7b4eeef36c77c6635a84ef610ad73890a2b0bd9852ff6d73f7exe_JC.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.a00ea565f9db4d7b4eeef36c77c6635a84ef610ad73890a2b0bd9852ff6d73f7exe_JC.exe"

C:\Users\Admin\AppData\Local\Temp\NEAS.a00ea565f9db4d7b4eeef36c77c6635a84ef610ad73890a2b0bd9852ff6d73f7exe_JC.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.a00ea565f9db4d7b4eeef36c77c6635a84ef610ad73890a2b0bd9852ff6d73f7exe_JC.exe"

Network

N/A

Files

memory/2088-0-0x00000000012F0000-0x0000000001394000-memory.dmp

memory/2088-1-0x0000000074A50000-0x000000007513E000-memory.dmp

memory/2088-2-0x0000000000470000-0x00000000004B0000-memory.dmp

memory/2088-3-0x0000000000370000-0x0000000000388000-memory.dmp

memory/2088-4-0x0000000074A50000-0x000000007513E000-memory.dmp

memory/2088-5-0x0000000000470000-0x00000000004B0000-memory.dmp

memory/2088-6-0x0000000000350000-0x0000000000360000-memory.dmp

memory/2088-7-0x0000000007C10000-0x0000000007C7E000-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/2088-13-0x0000000074A50000-0x000000007513E000-memory.dmp

memory/2672-14-0x0000000000A20000-0x0000000000D23000-memory.dmp

memory/2672-15-0x0000000000A20000-0x0000000000D23000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-10-23 17:43

Reported

2023-10-23 17:52

Platform

win10v2004-20231020-en

Max time kernel

142s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\NEAS.a00ea565f9db4d7b4eeef36c77c6635a84ef610ad73890a2b0bd9852ff6d73f7exe_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 WriteProcessMemory

Description Indicator Process Target
PID 2276 wrote to memory of 4984 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.a00ea565f9db4d7b4eeef36c77c6635a84ef610ad73890a2b0bd9852ff6d73f7exe_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.a00ea565f9db4d7b4eeef36c77c6635a84ef610ad73890a2b0bd9852ff6d73f7exe_JC.exe
PID 2276 wrote to memory of 4984 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.a00ea565f9db4d7b4eeef36c77c6635a84ef610ad73890a2b0bd9852ff6d73f7exe_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.a00ea565f9db4d7b4eeef36c77c6635a84ef610ad73890a2b0bd9852ff6d73f7exe_JC.exe
PID 2276 wrote to memory of 4984 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.a00ea565f9db4d7b4eeef36c77c6635a84ef610ad73890a2b0bd9852ff6d73f7exe_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.a00ea565f9db4d7b4eeef36c77c6635a84ef610ad73890a2b0bd9852ff6d73f7exe_JC.exe
PID 2276 wrote to memory of 4984 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.a00ea565f9db4d7b4eeef36c77c6635a84ef610ad73890a2b0bd9852ff6d73f7exe_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.a00ea565f9db4d7b4eeef36c77c6635a84ef610ad73890a2b0bd9852ff6d73f7exe_JC.exe
PID 2276 wrote to memory of 4984 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.a00ea565f9db4d7b4eeef36c77c6635a84ef610ad73890a2b0bd9852ff6d73f7exe_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.a00ea565f9db4d7b4eeef36c77c6635a84ef610ad73890a2b0bd9852ff6d73f7exe_JC.exe
PID 2276 wrote to memory of 4984 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.a00ea565f9db4d7b4eeef36c77c6635a84ef610ad73890a2b0bd9852ff6d73f7exe_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.a00ea565f9db4d7b4eeef36c77c6635a84ef610ad73890a2b0bd9852ff6d73f7exe_JC.exe

Processes

C:\Users\Admin\AppData\Local\Temp\NEAS.a00ea565f9db4d7b4eeef36c77c6635a84ef610ad73890a2b0bd9852ff6d73f7exe_JC.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.a00ea565f9db4d7b4eeef36c77c6635a84ef610ad73890a2b0bd9852ff6d73f7exe_JC.exe"

C:\Users\Admin\AppData\Local\Temp\NEAS.a00ea565f9db4d7b4eeef36c77c6635a84ef610ad73890a2b0bd9852ff6d73f7exe_JC.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.a00ea565f9db4d7b4eeef36c77c6635a84ef610ad73890a2b0bd9852ff6d73f7exe_JC.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 68.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 29.81.57.23.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.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 21.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 170.117.168.52.in-addr.arpa udp

Files

memory/2276-0-0x00000000748C0000-0x0000000075070000-memory.dmp

memory/2276-1-0x00000000008F0000-0x0000000000994000-memory.dmp

memory/2276-2-0x0000000005960000-0x0000000005F04000-memory.dmp

memory/2276-3-0x00000000053B0000-0x0000000005442000-memory.dmp

memory/2276-4-0x00000000055B0000-0x00000000055C0000-memory.dmp

memory/2276-5-0x0000000005380000-0x000000000538A000-memory.dmp

memory/2276-6-0x00000000058A0000-0x00000000058B8000-memory.dmp

memory/2276-7-0x00000000748C0000-0x0000000075070000-memory.dmp

memory/2276-8-0x00000000055B0000-0x00000000055C0000-memory.dmp

memory/2276-9-0x0000000005780000-0x0000000005790000-memory.dmp

memory/2276-10-0x0000000007E30000-0x0000000007E9E000-memory.dmp

memory/2276-11-0x000000000A570000-0x000000000A60C000-memory.dmp

memory/4984-12-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2276-14-0x00000000748C0000-0x0000000075070000-memory.dmp

memory/4984-15-0x0000000000E60000-0x00000000011AA000-memory.dmp