Malware Analysis Report

2025-01-19 07:40

Sample ID 241117-wdz6rsvjb1
Target 7709f1048342d8c231c0d91bc007f13af3b76b9f411470b72cc4639deb33e553.exe
SHA256 7709f1048342d8c231c0d91bc007f13af3b76b9f411470b72cc4639deb33e553
Tags
tinba banker discovery persistence trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

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

7709f1048342d8c231c0d91bc007f13af3b76b9f411470b72cc4639deb33e553

Threat Level: Known bad

The file 7709f1048342d8c231c0d91bc007f13af3b76b9f411470b72cc4639deb33e553.exe was found to be: Known bad.

Malicious Activity Summary

tinba banker discovery persistence trojan

Tinba / TinyBanker

Tinba family

Adds Run key to start application

System Location Discovery: System Language Discovery

Enumerates physical storage devices

Unsigned PE

Program crash

Suspicious behavior: EnumeratesProcesses

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

Modifies data under HKEY_USERS

Suspicious use of AdjustPrivilegeToken

Suspicious use of UnmapMainImage

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-17 17:49

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-17 17:49

Reported

2024-11-17 17:51

Platform

win7-20240903-en

Max time kernel

149s

Max time network

151s

Command Line

"taskhost.exe"

Signatures

Tinba / TinyBanker

trojan banker tinba

Tinba family

tinba

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\68D6B8B5 = "C:\\Users\\Admin\\AppData\\Roaming\\68D6B8B5\\bin.exe" C:\Windows\SysWOW64\winver.exe N/A

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\7709f1048342d8c231c0d91bc007f13af3b76b9f411470b72cc4639deb33e553.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\winver.exe N/A

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1688 wrote to memory of 2804 N/A C:\Users\Admin\AppData\Local\Temp\7709f1048342d8c231c0d91bc007f13af3b76b9f411470b72cc4639deb33e553.exe C:\Windows\SysWOW64\winver.exe
PID 1688 wrote to memory of 2804 N/A C:\Users\Admin\AppData\Local\Temp\7709f1048342d8c231c0d91bc007f13af3b76b9f411470b72cc4639deb33e553.exe C:\Windows\SysWOW64\winver.exe
PID 1688 wrote to memory of 2804 N/A C:\Users\Admin\AppData\Local\Temp\7709f1048342d8c231c0d91bc007f13af3b76b9f411470b72cc4639deb33e553.exe C:\Windows\SysWOW64\winver.exe
PID 1688 wrote to memory of 2804 N/A C:\Users\Admin\AppData\Local\Temp\7709f1048342d8c231c0d91bc007f13af3b76b9f411470b72cc4639deb33e553.exe C:\Windows\SysWOW64\winver.exe
PID 1688 wrote to memory of 2804 N/A C:\Users\Admin\AppData\Local\Temp\7709f1048342d8c231c0d91bc007f13af3b76b9f411470b72cc4639deb33e553.exe C:\Windows\SysWOW64\winver.exe
PID 2804 wrote to memory of 1212 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\Explorer.EXE
PID 2804 wrote to memory of 1108 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\system32\taskhost.exe
PID 2804 wrote to memory of 1164 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\system32\Dwm.exe
PID 2804 wrote to memory of 1212 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\Explorer.EXE
PID 2804 wrote to memory of 1448 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\system32\DllHost.exe
PID 2804 wrote to memory of 1688 N/A C:\Windows\SysWOW64\winver.exe C:\Users\Admin\AppData\Local\Temp\7709f1048342d8c231c0d91bc007f13af3b76b9f411470b72cc4639deb33e553.exe

Processes

C:\Windows\system32\taskhost.exe

"taskhost.exe"

C:\Windows\system32\Dwm.exe

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

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Windows\system32\DllHost.exe

C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}

C:\Users\Admin\AppData\Local\Temp\7709f1048342d8c231c0d91bc007f13af3b76b9f411470b72cc4639deb33e553.exe

"C:\Users\Admin\AppData\Local\Temp\7709f1048342d8c231c0d91bc007f13af3b76b9f411470b72cc4639deb33e553.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/1212-1-0x0000000002B50000-0x0000000002B56000-memory.dmp

memory/2804-4-0x00000000000B0000-0x00000000000B6000-memory.dmp

memory/1212-3-0x0000000002B50000-0x0000000002B56000-memory.dmp

memory/1212-6-0x0000000002B50000-0x0000000002B56000-memory.dmp

memory/2804-23-0x0000000000290000-0x0000000000296000-memory.dmp

memory/1448-18-0x0000000001CF0000-0x0000000001CF6000-memory.dmp

memory/1212-15-0x0000000002DE0000-0x0000000002DE6000-memory.dmp

memory/1164-12-0x0000000001DA0000-0x0000000001DA6000-memory.dmp

memory/1108-9-0x0000000001FF0000-0x0000000001FF6000-memory.dmp

memory/1688-25-0x0000000000400000-0x000000000043C000-memory.dmp

memory/1212-27-0x0000000002DE0000-0x0000000002DE6000-memory.dmp

memory/1108-28-0x0000000001FF0000-0x0000000001FF6000-memory.dmp

memory/1448-26-0x0000000001CF0000-0x0000000001CF6000-memory.dmp

memory/1164-29-0x0000000001DA0000-0x0000000001DA6000-memory.dmp

memory/2804-31-0x0000000000290000-0x0000000000296000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-17 17:49

Reported

2024-11-17 17:51

Platform

win10v2004-20241007-en

Max time kernel

134s

Max time network

140s

Command Line

sihost.exe

Signatures

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\7709f1048342d8c231c0d91bc007f13af3b76b9f411470b72cc4639deb33e553.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\winver.exe N/A

Modifies data under HKEY_USERS

Description Indicator Process Target
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\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 FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\7709f1048342d8c231c0d91bc007f13af3b76b9f411470b72cc4639deb33e553.exe N/A

Suspicious use of UnmapMainImage

Description Indicator Process Target
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\7709f1048342d8c231c0d91bc007f13af3b76b9f411470b72cc4639deb33e553.exe

"C:\Users\Admin\AppData\Local\Temp\7709f1048342d8c231c0d91bc007f13af3b76b9f411470b72cc4639deb33e553.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 3492 -ip 3492

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3492 -s 300

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 316 -ip 316

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 316 -s 956

Network

Country Destination Domain Proto
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 136.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 53.210.109.20.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp

Files

memory/316-1-0x00000000046F0000-0x0000000004D48000-memory.dmp

memory/316-2-0x00000000044E0000-0x00000000044E1000-memory.dmp

memory/316-3-0x00000000044E0000-0x00000000044E1000-memory.dmp

memory/316-4-0x00000000044E0000-0x00000000044E1000-memory.dmp

memory/3376-6-0x0000000000B30000-0x0000000000B36000-memory.dmp

memory/3376-7-0x0000000000B30000-0x0000000000B36000-memory.dmp

memory/316-8-0x0000000000400000-0x000000000043C000-memory.dmp

memory/3376-12-0x0000000000B40000-0x0000000000B46000-memory.dmp

memory/316-13-0x0000000005B00000-0x0000000006500000-memory.dmp

memory/2704-14-0x0000000000C40000-0x0000000000C46000-memory.dmp

memory/316-16-0x0000000005B00000-0x0000000006500000-memory.dmp

memory/316-19-0x00000000046F0000-0x0000000004D48000-memory.dmp

memory/2704-20-0x0000000000C40000-0x0000000000C46000-memory.dmp