Malware Analysis Report

2025-01-19 07:40

Sample ID 241112-kdx6maxnfx
Target f3034fbd7ea204a9caa2c7311c61fb488d48ff232bd2fa0d207cd82d94851a49.exe
SHA256 f3034fbd7ea204a9caa2c7311c61fb488d48ff232bd2fa0d207cd82d94851a49
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

f3034fbd7ea204a9caa2c7311c61fb488d48ff232bd2fa0d207cd82d94851a49

Threat Level: Known bad

The file f3034fbd7ea204a9caa2c7311c61fb488d48ff232bd2fa0d207cd82d94851a49.exe was found to be: Known bad.

Malicious Activity Summary

tinba banker discovery persistence trojan

Tinba family

Tinba / TinyBanker

Adds Run key to start application

Unsigned PE

System Location Discovery: System Language Discovery

Program crash

Suspicious use of FindShellTrayWindow

Suspicious use of AdjustPrivilegeToken

Suspicious use of UnmapMainImage

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Modifies registry class

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-12 08:29

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-12 08:29

Reported

2024-11-12 08:31

Platform

win7-20241010-en

Max time kernel

119s

Max time network

122s

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-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\3F589044 = "C:\\Users\\Admin\\AppData\\Roaming\\3F589044\\bin.exe" C:\Windows\SysWOW64\winver.exe 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\f3034fbd7ea204a9caa2c7311c61fb488d48ff232bd2fa0d207cd82d94851a49.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\f3034fbd7ea204a9caa2c7311c61fb488d48ff232bd2fa0d207cd82d94851a49.exe

"C:\Users\Admin\AppData\Local\Temp\f3034fbd7ea204a9caa2c7311c61fb488d48ff232bd2fa0d207cd82d94851a49.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/2500-0-0x0000000000020000-0x0000000000021000-memory.dmp

memory/1204-1-0x0000000002930000-0x0000000002936000-memory.dmp

memory/1204-2-0x0000000002930000-0x0000000002936000-memory.dmp

memory/1204-3-0x0000000002930000-0x0000000002936000-memory.dmp

memory/1204-9-0x00000000773D1000-0x00000000773D2000-memory.dmp

memory/2824-10-0x0000000077380000-0x0000000077529000-memory.dmp

memory/2824-8-0x000000007757F000-0x0000000077581000-memory.dmp

memory/2824-7-0x000000007757F000-0x0000000077580000-memory.dmp

memory/2824-6-0x0000000077580000-0x0000000077581000-memory.dmp

memory/2824-5-0x0000000000090000-0x0000000000096000-memory.dmp

memory/2500-4-0x0000000001C70000-0x0000000002670000-memory.dmp

memory/2500-11-0x0000000000400000-0x0000000000417000-memory.dmp

memory/2500-12-0x0000000001C70000-0x0000000002670000-memory.dmp

memory/1104-25-0x00000000773D1000-0x00000000773D2000-memory.dmp

memory/1104-24-0x0000000000310000-0x0000000000316000-memory.dmp

memory/1628-23-0x00000000022A0000-0x00000000022A6000-memory.dmp

memory/1204-21-0x00000000021F0000-0x00000000021F6000-memory.dmp

memory/1168-19-0x0000000000120000-0x0000000000126000-memory.dmp

memory/1204-26-0x00000000021F0000-0x00000000021F6000-memory.dmp

memory/1628-27-0x00000000022A0000-0x00000000022A6000-memory.dmp

memory/1628-28-0x00000000773D1000-0x00000000773D2000-memory.dmp

memory/1168-29-0x0000000000120000-0x0000000000126000-memory.dmp

memory/2824-30-0x0000000000090000-0x0000000000096000-memory.dmp

memory/2824-35-0x0000000000690000-0x0000000000691000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-12 08:29

Reported

2024-11-12 08:31

Platform

win10v2004-20241007-en

Max time kernel

118s

Max time network

94s

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-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\17271596 = "C:\\Users\\Admin\\AppData\\Roaming\\17271596\\bin.exe" C:\Windows\SysWOW64\winver.exe 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\f3034fbd7ea204a9caa2c7311c61fb488d48ff232bd2fa0d207cd82d94851a49.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\winver.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ C:\Windows\Explorer.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
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
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
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:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.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\f3034fbd7ea204a9caa2c7311c61fb488d48ff232bd2fa0d207cd82d94851a49.exe

"C:\Users\Admin\AppData\Local\Temp\f3034fbd7ea204a9caa2c7311c61fb488d48ff232bd2fa0d207cd82d94851a49.exe"

C:\Windows\SysWOW64\winver.exe

winver

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2708 -ip 2708

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2708 -s 352

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 71.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 197.87.175.4.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp

Files

memory/4788-0-0x00000000005C0000-0x00000000005C1000-memory.dmp

memory/3524-1-0x0000000000A40000-0x0000000000A46000-memory.dmp

memory/3524-2-0x0000000000A40000-0x0000000000A46000-memory.dmp

memory/4788-3-0x0000000002360000-0x0000000002D60000-memory.dmp

memory/2708-5-0x0000000077E32000-0x0000000077E33000-memory.dmp

memory/3524-6-0x00007FFF7802D000-0x00007FFF7802E000-memory.dmp

memory/2708-4-0x0000000002BC0000-0x0000000002BC6000-memory.dmp

memory/2708-7-0x00007FFF77F90000-0x00007FFF78185000-memory.dmp

memory/3524-8-0x00007FFF781C0000-0x00007FFF781C1000-memory.dmp

memory/4788-10-0x0000000002360000-0x0000000002D60000-memory.dmp

memory/4788-9-0x0000000000400000-0x0000000000417000-memory.dmp

memory/3524-11-0x00007FFF781A0000-0x00007FFF781A1000-memory.dmp

memory/2884-15-0x0000000000130000-0x0000000000136000-memory.dmp

memory/2708-16-0x0000000002BC0000-0x0000000002BC6000-memory.dmp