Malware Analysis Report

2025-08-05 12:54

Sample ID 230803-s8kg1sfb9v
Target 3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe
SHA256 3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009
Tags
snakekeylogger keylogger spyware stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009

Threat Level: Known bad

The file 3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe was found to be: Known bad.

Malicious Activity Summary

snakekeylogger keylogger spyware stealer

Snake Keylogger payload

Snake Keylogger

Reads user/profile data of web browsers

Drops startup file

Reads data files stored by FTP clients

Reads user/profile data of local email clients

Looks up external IP address via web service

Suspicious use of SetThreadContext

Unsigned PE

Program crash

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-08-03 15:47

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2023-08-03 15:47

Reported

2023-08-03 15:50

Platform

win10v2004-20230703-en

Max time kernel

123s

Max time network

135s

Command Line

"C:\Users\Admin\AppData\Local\Temp\3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe"

Signatures

Snake Keylogger

stealer keylogger snakekeylogger

Snake Keylogger payload

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

Drops startup file

Description Indicator Process Target
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe N/A
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe N/A

Reads data files stored by FTP clients

spyware stealer

Reads user/profile data of local email clients

spyware stealer

Reads user/profile data of web browsers

spyware stealer

Looks up external IP address via web service

Description Indicator Process Target
N/A checkip.dyndns.org N/A N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3384 wrote to memory of 5012 N/A C:\Users\Admin\AppData\Local\Temp\3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
PID 3384 wrote to memory of 5012 N/A C:\Users\Admin\AppData\Local\Temp\3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
PID 3384 wrote to memory of 5012 N/A C:\Users\Admin\AppData\Local\Temp\3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
PID 3384 wrote to memory of 4212 N/A C:\Users\Admin\AppData\Local\Temp\3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe C:\Users\Admin\AppData\Local\Temp\3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe
PID 3384 wrote to memory of 4212 N/A C:\Users\Admin\AppData\Local\Temp\3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe C:\Users\Admin\AppData\Local\Temp\3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe
PID 3384 wrote to memory of 4212 N/A C:\Users\Admin\AppData\Local\Temp\3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe C:\Users\Admin\AppData\Local\Temp\3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe
PID 3384 wrote to memory of 4212 N/A C:\Users\Admin\AppData\Local\Temp\3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe C:\Users\Admin\AppData\Local\Temp\3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe
PID 3384 wrote to memory of 4212 N/A C:\Users\Admin\AppData\Local\Temp\3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe C:\Users\Admin\AppData\Local\Temp\3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe
PID 3384 wrote to memory of 4212 N/A C:\Users\Admin\AppData\Local\Temp\3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe C:\Users\Admin\AppData\Local\Temp\3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe
PID 3384 wrote to memory of 4212 N/A C:\Users\Admin\AppData\Local\Temp\3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe C:\Users\Admin\AppData\Local\Temp\3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe
PID 3384 wrote to memory of 4212 N/A C:\Users\Admin\AppData\Local\Temp\3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe C:\Users\Admin\AppData\Local\Temp\3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe

Processes

C:\Users\Admin\AppData\Local\Temp\3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe

"C:\Users\Admin\AppData\Local\Temp\3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe"

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe

"Powershell.exe" -ExecutionPolicy Bypass -command Copy-Item 'C:\Users\Admin\AppData\Local\Temp\3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\.exe'

C:\Users\Admin\AppData\Local\Temp\3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe

"C:\Users\Admin\AppData\Local\Temp\3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 59.128.231.4.in-addr.arpa udp
US 8.8.8.8:53 73.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 146.78.124.51.in-addr.arpa udp
US 8.8.8.8:53 checkip.dyndns.org udp
JP 132.226.8.169:80 checkip.dyndns.org tcp
US 8.8.8.8:53 169.8.226.132.in-addr.arpa udp
US 8.8.8.8:53 160.252.72.23.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 161.252.72.23.in-addr.arpa udp
US 8.8.8.8:53 1.208.79.178.in-addr.arpa udp
US 8.8.8.8:53 203.151.224.20.in-addr.arpa udp
US 8.8.8.8:53 123.10.44.20.in-addr.arpa udp

Files

memory/3384-133-0x0000000074550000-0x0000000074D00000-memory.dmp

memory/3384-134-0x0000000000130000-0x00000000001C4000-memory.dmp

memory/3384-135-0x00000000051F0000-0x0000000005794000-memory.dmp

memory/3384-136-0x0000000004C40000-0x0000000004CD2000-memory.dmp

memory/3384-137-0x0000000004D80000-0x0000000004E1C000-memory.dmp

memory/3384-138-0x0000000004EA0000-0x0000000004EB0000-memory.dmp

memory/5012-139-0x0000000004750000-0x0000000004786000-memory.dmp

memory/5012-140-0x0000000074550000-0x0000000074D00000-memory.dmp

memory/5012-141-0x00000000048B0000-0x00000000048C0000-memory.dmp

memory/5012-142-0x00000000048B0000-0x00000000048C0000-memory.dmp

memory/5012-143-0x0000000004EF0000-0x0000000005518000-memory.dmp

memory/5012-144-0x0000000004E60000-0x0000000004E82000-memory.dmp

memory/5012-145-0x0000000005690000-0x00000000056F6000-memory.dmp

memory/5012-147-0x0000000005700000-0x0000000005766000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_k01ho5zj.jfo.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/4212-152-0x0000000000400000-0x0000000000424000-memory.dmp

memory/4212-158-0x0000000074550000-0x0000000074D00000-memory.dmp

memory/3384-159-0x0000000074550000-0x0000000074D00000-memory.dmp

memory/4212-160-0x0000000005450000-0x0000000005460000-memory.dmp

memory/5012-161-0x0000000005CD0000-0x0000000005CEE000-memory.dmp

memory/5012-162-0x0000000006F30000-0x0000000006FC6000-memory.dmp

memory/5012-163-0x0000000006220000-0x000000000623A000-memory.dmp

memory/5012-164-0x00000000062A0000-0x00000000062C2000-memory.dmp

memory/5012-168-0x0000000074550000-0x0000000074D00000-memory.dmp

memory/4212-169-0x0000000006410000-0x00000000065D2000-memory.dmp

memory/4212-170-0x00000000063A0000-0x00000000063AA000-memory.dmp

memory/4212-171-0x0000000074550000-0x0000000074D00000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2023-08-03 15:47

Reported

2023-08-03 15:50

Platform

win7-20230712-en

Max time kernel

119s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe"

Signatures

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2652 wrote to memory of 2556 N/A C:\Users\Admin\AppData\Local\Temp\3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
PID 2652 wrote to memory of 2556 N/A C:\Users\Admin\AppData\Local\Temp\3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
PID 2652 wrote to memory of 2556 N/A C:\Users\Admin\AppData\Local\Temp\3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
PID 2652 wrote to memory of 2556 N/A C:\Users\Admin\AppData\Local\Temp\3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
PID 2652 wrote to memory of 308 N/A C:\Users\Admin\AppData\Local\Temp\3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe C:\Users\Admin\AppData\Local\Temp\3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe
PID 2652 wrote to memory of 308 N/A C:\Users\Admin\AppData\Local\Temp\3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe C:\Users\Admin\AppData\Local\Temp\3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe
PID 2652 wrote to memory of 308 N/A C:\Users\Admin\AppData\Local\Temp\3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe C:\Users\Admin\AppData\Local\Temp\3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe
PID 2652 wrote to memory of 308 N/A C:\Users\Admin\AppData\Local\Temp\3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe C:\Users\Admin\AppData\Local\Temp\3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe
PID 2652 wrote to memory of 2804 N/A C:\Users\Admin\AppData\Local\Temp\3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe C:\Windows\SysWOW64\WerFault.exe
PID 2652 wrote to memory of 2804 N/A C:\Users\Admin\AppData\Local\Temp\3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe C:\Windows\SysWOW64\WerFault.exe
PID 2652 wrote to memory of 2804 N/A C:\Users\Admin\AppData\Local\Temp\3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe C:\Windows\SysWOW64\WerFault.exe
PID 2652 wrote to memory of 2804 N/A C:\Users\Admin\AppData\Local\Temp\3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe C:\Windows\SysWOW64\WerFault.exe

Processes

C:\Users\Admin\AppData\Local\Temp\3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe

"C:\Users\Admin\AppData\Local\Temp\3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe"

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe

"Powershell.exe" -ExecutionPolicy Bypass -command Copy-Item 'C:\Users\Admin\AppData\Local\Temp\3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\.exe'

C:\Users\Admin\AppData\Local\Temp\3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe

"C:\Users\Admin\AppData\Local\Temp\3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2652 -s 624

Network

N/A

Files

memory/2652-53-0x00000000009E0000-0x0000000000A74000-memory.dmp

memory/2652-54-0x0000000073F40000-0x000000007462E000-memory.dmp

memory/2652-55-0x00000000004D0000-0x000000000050E000-memory.dmp

memory/2652-56-0x00000000007D0000-0x0000000000810000-memory.dmp

memory/2556-59-0x000000006F870000-0x000000006FE1B000-memory.dmp

memory/2556-60-0x000000006F870000-0x000000006FE1B000-memory.dmp

memory/2652-61-0x0000000000320000-0x000000000032A000-memory.dmp

memory/2556-62-0x00000000022D0000-0x0000000002310000-memory.dmp

memory/2556-64-0x000000006F870000-0x000000006FE1B000-memory.dmp

memory/2652-65-0x0000000073F40000-0x000000007462E000-memory.dmp