Malware Analysis Report

2025-01-19 07:40

Sample ID 241116-vpxdkstqdl
Target cff378b9e74d6be946cdbd7aeca4528bc8775521e3cad6575bd02f886d1beb89N.exe
SHA256 cff378b9e74d6be946cdbd7aeca4528bc8775521e3cad6575bd02f886d1beb89
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

cff378b9e74d6be946cdbd7aeca4528bc8775521e3cad6575bd02f886d1beb89

Threat Level: Known bad

The file cff378b9e74d6be946cdbd7aeca4528bc8775521e3cad6575bd02f886d1beb89N.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

Program crash

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of UnmapMainImage

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-16 17:10

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

2024-11-16 17:10

Reported

2024-11-16 17:12

Platform

win7-20240903-en

Max time kernel

118s

Max time network

119s

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-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\713894D0 = "C:\\Users\\Admin\\AppData\\Roaming\\713894D0\\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\cff378b9e74d6be946cdbd7aeca4528bc8775521e3cad6575bd02f886d1beb89N.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\cff378b9e74d6be946cdbd7aeca4528bc8775521e3cad6575bd02f886d1beb89N.exe

"C:\Users\Admin\AppData\Local\Temp\cff378b9e74d6be946cdbd7aeca4528bc8775521e3cad6575bd02f886d1beb89N.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/1968-0-0x0000000000400000-0x000000000041E000-memory.dmp

memory/1968-1-0x0000000000020000-0x0000000000021000-memory.dmp

memory/1140-3-0x00000000025D0000-0x00000000025D6000-memory.dmp

memory/1140-4-0x00000000025D0000-0x00000000025D6000-memory.dmp

memory/1140-2-0x00000000025D0000-0x00000000025D6000-memory.dmp

memory/1968-5-0x0000000001D90000-0x0000000002790000-memory.dmp

memory/2336-6-0x00000000001B0000-0x00000000001B6000-memory.dmp

memory/2336-7-0x0000000077C10000-0x0000000077C11000-memory.dmp

memory/2336-9-0x0000000077C0F000-0x0000000077C11000-memory.dmp

memory/2336-8-0x0000000077C0F000-0x0000000077C10000-memory.dmp

memory/1140-10-0x0000000077A61000-0x0000000077A62000-memory.dmp

memory/2336-11-0x0000000077A10000-0x0000000077BB9000-memory.dmp

memory/1968-12-0x0000000000400000-0x000000000041E000-memory.dmp

memory/1968-13-0x0000000001D90000-0x0000000002790000-memory.dmp

memory/1140-22-0x00000000025B0000-0x00000000025B6000-memory.dmp

memory/760-25-0x0000000001F50000-0x0000000001F56000-memory.dmp

memory/1092-20-0x0000000000230000-0x0000000000236000-memory.dmp

memory/760-33-0x0000000001F50000-0x0000000001F56000-memory.dmp

memory/760-34-0x0000000077A61000-0x0000000077A62000-memory.dmp

memory/1140-32-0x00000000025B0000-0x00000000025B6000-memory.dmp

memory/1060-31-0x0000000077A61000-0x0000000077A62000-memory.dmp

memory/2336-30-0x00000000001B0000-0x00000000001B6000-memory.dmp

memory/1060-29-0x0000000001F10000-0x0000000001F16000-memory.dmp

memory/1060-28-0x0000000077A61000-0x0000000077A62000-memory.dmp

memory/1092-27-0x0000000077A61000-0x0000000077A62000-memory.dmp

memory/1092-26-0x0000000000230000-0x0000000000236000-memory.dmp

memory/1060-38-0x0000000001F10000-0x0000000001F16000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-16 17:10

Reported

2024-11-16 17:12

Platform

win10v2004-20241007-en

Max time kernel

118s

Max time network

95s

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-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\C59BED8D = "C:\\Users\\Admin\\AppData\\Roaming\\C59BED8D\\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\cff378b9e74d6be946cdbd7aeca4528bc8775521e3cad6575bd02f886d1beb89N.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

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\cff378b9e74d6be946cdbd7aeca4528bc8775521e3cad6575bd02f886d1beb89N.exe

"C:\Users\Admin\AppData\Local\Temp\cff378b9e74d6be946cdbd7aeca4528bc8775521e3cad6575bd02f886d1beb89N.exe"

C:\Windows\SysWOW64\winver.exe

winver

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 2768 -ip 2768

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2768 -s 308

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 182.129.81.91.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 212.20.149.52.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 22.49.80.91.in-addr.arpa udp
US 8.8.8.8:53 86.49.80.91.in-addr.arpa udp

Files

memory/964-0-0x0000000000400000-0x000000000041E000-memory.dmp

memory/964-1-0x00000000004A0000-0x00000000004A1000-memory.dmp

memory/964-2-0x0000000002300000-0x0000000002D00000-memory.dmp

memory/3436-4-0x00000000025B0000-0x00000000025B6000-memory.dmp

memory/3436-3-0x00000000025B0000-0x00000000025B6000-memory.dmp

memory/3436-7-0x00007FF94DA8D000-0x00007FF94DA8E000-memory.dmp

memory/2768-6-0x00000000778F2000-0x00000000778F3000-memory.dmp

memory/2768-5-0x0000000002490000-0x0000000002496000-memory.dmp

memory/3436-8-0x00007FF94DC20000-0x00007FF94DC21000-memory.dmp

memory/964-10-0x0000000000400000-0x000000000041E000-memory.dmp

memory/964-11-0x0000000002300000-0x0000000002D00000-memory.dmp

memory/2684-15-0x00000000000A0000-0x00000000000A6000-memory.dmp

memory/2768-16-0x0000000002490000-0x0000000002496000-memory.dmp

memory/2684-18-0x00000000000A0000-0x00000000000A6000-memory.dmp