Malware Analysis Report

2025-01-19 07:40

Sample ID 241120-3xeshawbra
Target 6c77e2c6eeb5850600a6405cd7425859ededc399b7cf24bd61645b623f745a36.exe
SHA256 6c77e2c6eeb5850600a6405cd7425859ededc399b7cf24bd61645b623f745a36
Tags
upx 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

6c77e2c6eeb5850600a6405cd7425859ededc399b7cf24bd61645b623f745a36

Threat Level: Known bad

The file 6c77e2c6eeb5850600a6405cd7425859ededc399b7cf24bd61645b623f745a36.exe was found to be: Known bad.

Malicious Activity Summary

upx tinba banker discovery persistence trojan

Tinba / TinyBanker

Tinba family

Adds Run key to start application

UPX packed file

Unsigned PE

System Location Discovery: System Language Discovery

Program crash

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-20 23:53

Signatures

UPX packed file

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

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-20 23:53

Reported

2024-11-20 23:55

Platform

win7-20241023-en

Max time kernel

119s

Max time network

120s

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-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows\CurrentVersion\Run\59B1818E = "C:\\Users\\Admin\\AppData\\Roaming\\59B1818E\\bin.exe" C:\Windows\SysWOW64\winver.exe N/A

UPX packed file

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

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\6c77e2c6eeb5850600a6405cd7425859ededc399b7cf24bd61645b623f745a36.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

Suspicious use of FindShellTrayWindow

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

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\6c77e2c6eeb5850600a6405cd7425859ededc399b7cf24bd61645b623f745a36.exe

"C:\Users\Admin\AppData\Local\Temp\6c77e2c6eeb5850600a6405cd7425859ededc399b7cf24bd61645b623f745a36.exe"

C:\Windows\SysWOW64\winver.exe

winver

Network

Country Destination Domain Proto
US 8.8.8.8:53 spaines.pw udp
US 216.218.185.162:80 spaines.pw tcp

Files

memory/2244-0-0x0000000000400000-0x0000000000428000-memory.dmp

memory/2244-1-0x0000000000020000-0x0000000000021000-memory.dmp

memory/1200-3-0x0000000002F00000-0x0000000002F06000-memory.dmp

memory/1200-2-0x0000000002F00000-0x0000000002F06000-memory.dmp

memory/2244-5-0x0000000001C20000-0x0000000002620000-memory.dmp

memory/1200-4-0x0000000002F00000-0x0000000002F06000-memory.dmp

memory/2948-11-0x0000000076D80000-0x0000000076F29000-memory.dmp

memory/1200-10-0x0000000076DD1000-0x0000000076DD2000-memory.dmp

memory/2948-9-0x0000000076F7F000-0x0000000076F81000-memory.dmp

memory/2948-8-0x0000000076F7F000-0x0000000076F80000-memory.dmp

memory/2948-7-0x0000000076F80000-0x0000000076F81000-memory.dmp

memory/2948-6-0x00000000000F0000-0x00000000000F6000-memory.dmp

memory/2244-12-0x0000000000400000-0x0000000000428000-memory.dmp

memory/2244-13-0x0000000001C20000-0x0000000002620000-memory.dmp

memory/1168-19-0x0000000001DA0000-0x0000000001DA6000-memory.dmp

memory/2948-26-0x00000000000F0000-0x00000000000F6000-memory.dmp

memory/1116-25-0x0000000076DD1000-0x0000000076DD2000-memory.dmp

memory/1200-28-0x0000000002180000-0x0000000002186000-memory.dmp

memory/1716-30-0x00000000023C0000-0x00000000023C6000-memory.dmp

memory/1716-29-0x0000000076DD1000-0x0000000076DD2000-memory.dmp

memory/1168-27-0x0000000001DA0000-0x0000000001DA6000-memory.dmp

memory/1116-24-0x00000000001D0000-0x00000000001D6000-memory.dmp

memory/1716-23-0x00000000023C0000-0x00000000023C6000-memory.dmp

memory/1200-21-0x0000000002180000-0x0000000002186000-memory.dmp

memory/2948-35-0x0000000000180000-0x0000000000181000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-20 23:53

Reported

2024-11-20 23:55

Platform

win10v2004-20241007-en

Max time kernel

102s

Max time network

99s

Command Line

sihost.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-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\EFDB43DC = "C:\\Users\\Admin\\AppData\\Roaming\\EFDB43DC\\bin.exe" C:\Windows\SysWOW64\winver.exe N/A

UPX packed file

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

Program crash

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

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\6c77e2c6eeb5850600a6405cd7425859ededc399b7cf24bd61645b623f745a36.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

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

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\winver.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\6c77e2c6eeb5850600a6405cd7425859ededc399b7cf24bd61645b623f745a36.exe

"C:\Users\Admin\AppData\Local\Temp\6c77e2c6eeb5850600a6405cd7425859ededc399b7cf24bd61645b623f745a36.exe"

C:\Windows\SysWOW64\winver.exe

winver

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4500 -ip 4500

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4500 -s 352

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 4.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 22.236.111.52.in-addr.arpa udp

Files

memory/3304-0-0x0000000000400000-0x0000000000428000-memory.dmp

memory/3304-1-0x0000000002030000-0x0000000002031000-memory.dmp

memory/3380-3-0x00000000006E0000-0x00000000006E6000-memory.dmp

memory/3380-2-0x00000000006E0000-0x00000000006E6000-memory.dmp

memory/3304-4-0x0000000002150000-0x0000000002B50000-memory.dmp

memory/3380-6-0x00007FFEDFB0D000-0x00007FFEDFB0E000-memory.dmp

memory/4500-5-0x0000000077EB2000-0x0000000077EB3000-memory.dmp

memory/4500-7-0x00007FFEDFA70000-0x00007FFEDFC65000-memory.dmp

memory/3304-8-0x0000000000400000-0x0000000000428000-memory.dmp

memory/4500-10-0x0000000000F30000-0x0000000000F36000-memory.dmp

memory/2556-12-0x0000000000C90000-0x0000000000C96000-memory.dmp

memory/4500-13-0x0000000000F30000-0x0000000000F36000-memory.dmp

memory/2556-14-0x0000000000C90000-0x0000000000C96000-memory.dmp