Malware Analysis Report

2024-10-19 13:24

Sample ID 240823-wynnga1elp
Target 0b225a0f98135633b1bd1306ac32cfbf31ecc12c4f79566a4acf97d63dee92e1
SHA256 0b225a0f98135633b1bd1306ac32cfbf31ecc12c4f79566a4acf97d63dee92e1
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

0b225a0f98135633b1bd1306ac32cfbf31ecc12c4f79566a4acf97d63dee92e1

Threat Level: Known bad

The file 0b225a0f98135633b1bd1306ac32cfbf31ecc12c4f79566a4acf97d63dee92e1 was found to be: Known bad.

Malicious Activity Summary

tinba banker discovery persistence trojan

Tinba / TinyBanker

Adds Run key to start application

System Location Discovery: System Language Discovery

Program crash

Unsigned PE

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Modifies data under HKEY_USERS

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious use of UnmapMainImage

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-23 18:19

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-23 18:19

Reported

2024-08-23 18:22

Platform

win7-20240708-en

Max time kernel

148s

Max time network

148s

Command Line

"taskhost.exe"

Signatures

Tinba / TinyBanker

trojan banker tinba

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000\Software\Microsoft\Windows\CurrentVersion\Run\0829A980 = "C:\\Users\\Admin\\AppData\\Roaming\\0829A980\\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\0b225a0f98135633b1bd1306ac32cfbf31ecc12c4f79566a4acf97d63dee92e1.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 2088 wrote to memory of 2272 N/A C:\Users\Admin\AppData\Local\Temp\0b225a0f98135633b1bd1306ac32cfbf31ecc12c4f79566a4acf97d63dee92e1.exe C:\Windows\SysWOW64\winver.exe
PID 2088 wrote to memory of 2272 N/A C:\Users\Admin\AppData\Local\Temp\0b225a0f98135633b1bd1306ac32cfbf31ecc12c4f79566a4acf97d63dee92e1.exe C:\Windows\SysWOW64\winver.exe
PID 2088 wrote to memory of 2272 N/A C:\Users\Admin\AppData\Local\Temp\0b225a0f98135633b1bd1306ac32cfbf31ecc12c4f79566a4acf97d63dee92e1.exe C:\Windows\SysWOW64\winver.exe
PID 2088 wrote to memory of 2272 N/A C:\Users\Admin\AppData\Local\Temp\0b225a0f98135633b1bd1306ac32cfbf31ecc12c4f79566a4acf97d63dee92e1.exe C:\Windows\SysWOW64\winver.exe
PID 2088 wrote to memory of 2272 N/A C:\Users\Admin\AppData\Local\Temp\0b225a0f98135633b1bd1306ac32cfbf31ecc12c4f79566a4acf97d63dee92e1.exe C:\Windows\SysWOW64\winver.exe
PID 2272 wrote to memory of 1220 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\Explorer.EXE
PID 2272 wrote to memory of 1108 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\system32\taskhost.exe
PID 2272 wrote to memory of 1156 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\system32\Dwm.exe
PID 2272 wrote to memory of 1220 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\Explorer.EXE
PID 2272 wrote to memory of 1668 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\system32\DllHost.exe
PID 2272 wrote to memory of 2088 N/A C:\Windows\SysWOW64\winver.exe C:\Users\Admin\AppData\Local\Temp\0b225a0f98135633b1bd1306ac32cfbf31ecc12c4f79566a4acf97d63dee92e1.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\0b225a0f98135633b1bd1306ac32cfbf31ecc12c4f79566a4acf97d63dee92e1.exe

"C:\Users\Admin\AppData\Local\Temp\0b225a0f98135633b1bd1306ac32cfbf31ecc12c4f79566a4acf97d63dee92e1.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
US 8.8.8.8:53 ljjskttqximu.com udp
US 8.8.8.8:53 ljjskttqximu.net udp
US 8.8.8.8:53 ljjskttqximu.in udp
US 216.218.185.162:80 ljjskttqximu.in tcp
US 8.8.8.8:53 ljjskttqximu.ru udp
US 162.249.66.138:80 ljjskttqximu.ru tcp
US 8.8.8.8:53 fovcpylsiqvv.com udp
US 216.218.185.162:80 fovcpylsiqvv.com tcp

Files

memory/1220-1-0x0000000002ED0000-0x0000000002ED6000-memory.dmp

memory/1220-6-0x0000000002ED0000-0x0000000002ED6000-memory.dmp

memory/2272-4-0x0000000000160000-0x0000000000166000-memory.dmp

memory/1220-3-0x0000000002ED0000-0x0000000002ED6000-memory.dmp

memory/2272-23-0x00000000003A0000-0x00000000003A6000-memory.dmp

memory/1668-18-0x0000000001DA0000-0x0000000001DA6000-memory.dmp

memory/1220-15-0x00000000030F0000-0x00000000030F6000-memory.dmp

memory/1156-12-0x00000000001B0000-0x00000000001B6000-memory.dmp

memory/1108-9-0x0000000000150000-0x0000000000156000-memory.dmp

memory/2088-25-0x0000000000400000-0x000000000043F000-memory.dmp

memory/1668-26-0x0000000001DA0000-0x0000000001DA6000-memory.dmp

memory/1108-29-0x0000000000150000-0x0000000000156000-memory.dmp

memory/1156-28-0x00000000001B0000-0x00000000001B6000-memory.dmp

memory/1220-27-0x00000000030F0000-0x00000000030F6000-memory.dmp

memory/2272-31-0x00000000003A0000-0x00000000003A6000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-23 18:19

Reported

2024-08-23 18:22

Platform

win10v2004-20240802-en

Max time kernel

148s

Max time network

149s

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\0b225a0f98135633b1bd1306ac32cfbf31ecc12c4f79566a4acf97d63dee92e1.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\0b225a0f98135633b1bd1306ac32cfbf31ecc12c4f79566a4acf97d63dee92e1.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\0b225a0f98135633b1bd1306ac32cfbf31ecc12c4f79566a4acf97d63dee92e1.exe

"C:\Users\Admin\AppData\Local\Temp\0b225a0f98135633b1bd1306ac32cfbf31ecc12c4f79566a4acf97d63dee92e1.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 5016 -ip 5016

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 5016 -s 300

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4516 -ip 4516

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4516 -s 968

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 150.171.28.10:443 g.bing.com tcp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 65.139.73.23.in-addr.arpa udp
US 8.8.8.8:53 elitiorecfreetoo.cc udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
IE 52.111.236.23:443 tcp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp

Files

memory/4516-1-0x00000000046F0000-0x0000000004D48000-memory.dmp

memory/4516-2-0x0000000003D10000-0x0000000003D11000-memory.dmp

memory/4516-3-0x00000000046F0000-0x0000000004D48000-memory.dmp

memory/4516-4-0x0000000003D10000-0x0000000003D11000-memory.dmp

memory/4516-5-0x0000000003D10000-0x0000000003D11000-memory.dmp

memory/4516-6-0x0000000003D10000-0x0000000003D11000-memory.dmp

memory/4516-7-0x0000000003D10000-0x0000000003D11000-memory.dmp

memory/3256-9-0x0000000000D70000-0x0000000000D76000-memory.dmp

memory/3256-10-0x0000000000D70000-0x0000000000D76000-memory.dmp

memory/4516-11-0x0000000000400000-0x000000000043F000-memory.dmp

memory/3256-15-0x0000000000DB0000-0x0000000000DB6000-memory.dmp

memory/4516-14-0x0000000005800000-0x0000000006200000-memory.dmp

memory/2556-18-0x0000000000F90000-0x0000000000F96000-memory.dmp

memory/4516-23-0x00000000046F0000-0x0000000004D48000-memory.dmp

memory/4516-19-0x0000000005800000-0x0000000006200000-memory.dmp

memory/2556-24-0x0000000000F90000-0x0000000000F96000-memory.dmp