Malware Analysis Report

2024-09-09 17:06

Sample ID 240705-ez8llavdpc
Target ed31986b30950e268f3407f65a15f1bcc2f6c84a6ed0aaf07bba0f43b03bbf85
SHA256 ed31986b30950e268f3407f65a15f1bcc2f6c84a6ed0aaf07bba0f43b03bbf85
Tags
tinba banker persistence trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

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

ed31986b30950e268f3407f65a15f1bcc2f6c84a6ed0aaf07bba0f43b03bbf85

Threat Level: Known bad

The file ed31986b30950e268f3407f65a15f1bcc2f6c84a6ed0aaf07bba0f43b03bbf85 was found to be: Known bad.

Malicious Activity Summary

tinba banker persistence trojan

Tinba / TinyBanker

Adds Run key to start application

Program crash

Unsigned PE

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of FindShellTrayWindow

Modifies data under HKEY_USERS

Suspicious use of SendNotifyMessage

MITRE ATT&CK Matrix V13

Analysis: static1

Detonation Overview

Reported

2024-07-05 04:23

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-05 04:23

Reported

2024-07-05 07:44

Platform

win7-20240221-en

Max time kernel

149s

Max time network

148s

Command Line

"C:\Windows\system32\Dwm.exe"

Signatures

Tinba / TinyBanker

trojan banker tinba

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows\CurrentVersion\Run\EEBAB769 = "C:\\Users\\Admin\\AppData\\Roaming\\EEBAB769\\bin.exe" C:\Windows\SysWOW64\winver.exe N/A

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

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

Suspicious use of FindShellTrayWindow

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

Processes

C:\Windows\system32\Dwm.exe

"C:\Windows\system32\Dwm.exe"

C:\Windows\system32\taskhost.exe

"taskhost.exe"

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\ed31986b30950e268f3407f65a15f1bcc2f6c84a6ed0aaf07bba0f43b03bbf85.exe

"C:\Users\Admin\AppData\Local\Temp\ed31986b30950e268f3407f65a15f1bcc2f6c84a6ed0aaf07bba0f43b03bbf85.exe"

C:\Windows\SysWOW64\winver.exe

winver

Network

Country Destination Domain Proto
US 8.8.8.8:53 elitiorecfreetoo.cc udp
US 216.218.185.162:80 elitiorecfreetoo.cc tcp

Files

memory/1160-1-0x00000000029F0000-0x00000000029F6000-memory.dmp

memory/1160-3-0x00000000029F0000-0x00000000029F6000-memory.dmp

memory/1160-6-0x00000000029F0000-0x00000000029F6000-memory.dmp

memory/2708-4-0x0000000000160000-0x0000000000166000-memory.dmp

memory/2292-8-0x0000000000400000-0x000000000043C000-memory.dmp

memory/1092-14-0x0000000000210000-0x0000000000216000-memory.dmp

memory/2708-20-0x0000000000290000-0x0000000000296000-memory.dmp

memory/1160-17-0x0000000002A40000-0x0000000002A46000-memory.dmp

memory/1076-11-0x0000000000130000-0x0000000000136000-memory.dmp

memory/1076-23-0x0000000000130000-0x0000000000136000-memory.dmp

memory/1092-21-0x0000000000210000-0x0000000000216000-memory.dmp

memory/1160-22-0x0000000002A40000-0x0000000002A46000-memory.dmp

memory/2708-25-0x0000000000290000-0x0000000000296000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-05 04:23

Reported

2024-07-05 07:43

Platform

win10v2004-20240508-en

Max time kernel

130s

Max time network

50s

Command Line

sihost.exe

Signatures

Enumerates physical storage devices

Modifies data under HKEY_USERS

Description Indicator Process Target
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@%SystemRoot%\system32\hnetcfgclient.dll,-201 = "HNetCfg Client" C:\Windows\System32\svchost.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeShutdownPrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeShutdownPrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\Explorer.EXE N/A

Suspicious use of SendNotifyMessage

Description Indicator Process Target
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A

Processes

C:\Windows\system32\sihost.exe

sihost.exe

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\ed31986b30950e268f3407f65a15f1bcc2f6c84a6ed0aaf07bba0f43b03bbf85.exe

"C:\Users\Admin\AppData\Local\Temp\ed31986b30950e268f3407f65a15f1bcc2f6c84a6ed0aaf07bba0f43b03bbf85.exe"

C:\Windows\System32\svchost.exe

C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman

C:\Windows\SysWOW64\winver.exe

winver

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2036 -ip 2036

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2036 -s 300

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 620 -ip 620

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 620 -s 812

Network

Files

memory/620-1-0x0000000004600000-0x0000000004C58000-memory.dmp

memory/620-2-0x0000000003D10000-0x0000000003D11000-memory.dmp

memory/3436-4-0x00000000010D0000-0x00000000010D6000-memory.dmp

memory/3436-5-0x00000000010D0000-0x00000000010D6000-memory.dmp

memory/620-6-0x0000000000400000-0x000000000043C000-memory.dmp

memory/3436-10-0x0000000002B30000-0x0000000002B36000-memory.dmp

memory/620-9-0x0000000005810000-0x0000000006210000-memory.dmp

memory/2880-12-0x00000000000B0000-0x00000000000B6000-memory.dmp

memory/620-13-0x0000000005810000-0x0000000006210000-memory.dmp

memory/620-17-0x0000000004600000-0x0000000004C58000-memory.dmp

memory/2880-18-0x00000000000B0000-0x00000000000B6000-memory.dmp