Malware Analysis Report

2025-01-19 07:24

Sample ID 231219-t4njjshee7
Target 5f35d9bc911080ac06dfbaaf230d6e23
SHA256 5ae703ba6e753e0e435ccd23f856865418e06904ca172301e16952721ab4e597
Tags
tinba banker persistence trojan upx
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

5ae703ba6e753e0e435ccd23f856865418e06904ca172301e16952721ab4e597

Threat Level: Known bad

The file 5f35d9bc911080ac06dfbaaf230d6e23 was found to be: Known bad.

Malicious Activity Summary

tinba banker persistence trojan upx

Tinba / TinyBanker

UPX packed file

Adds Run key to start application

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-19 16:36

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
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-19 16:36

Reported

2023-12-19 19:56

Platform

win7-20231129-en

Max time kernel

149s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\5f35d9bc911080ac06dfbaaf230d6e23.exe"

Signatures

Tinba / TinyBanker

trojan banker tinba

UPX packed file

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\318A1780 = "C:\\Users\\Admin\\AppData\\Roaming\\318A1780\\bin.exe" 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
N/A N/A C:\Windows\SysWOW64\winver.exe 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
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A

Suspicious use of SendNotifyMessage

Description Indicator Process Target
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A

Processes

C:\Users\Admin\AppData\Local\Temp\5f35d9bc911080ac06dfbaaf230d6e23.exe

"C:\Users\Admin\AppData\Local\Temp\5f35d9bc911080ac06dfbaaf230d6e23.exe"

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Windows\system32\Dwm.exe

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

C:\Windows\system32\taskhost.exe

"taskhost.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/2024-0-0x0000000000400000-0x0000000000417000-memory.dmp

memory/2024-1-0x0000000000020000-0x0000000000021000-memory.dmp

memory/2024-3-0x0000000001E30000-0x0000000002830000-memory.dmp

memory/2428-4-0x0000000000140000-0x0000000000146000-memory.dmp

memory/1204-2-0x0000000002D90000-0x0000000002D96000-memory.dmp

memory/1204-6-0x0000000002D90000-0x0000000002D96000-memory.dmp

memory/1204-11-0x0000000077431000-0x0000000077432000-memory.dmp

memory/2428-10-0x00000000775E0000-0x00000000775E1000-memory.dmp

memory/2428-9-0x00000000775DF000-0x00000000775E1000-memory.dmp

memory/2428-8-0x00000000775DF000-0x00000000775E0000-memory.dmp

memory/2428-7-0x0000000000050000-0x0000000000066000-memory.dmp

memory/2024-12-0x0000000000400000-0x0000000000417000-memory.dmp

memory/2024-13-0x0000000001E30000-0x0000000002830000-memory.dmp

memory/2428-15-0x0000000000140000-0x0000000000146000-memory.dmp

memory/2428-16-0x0000000000180000-0x0000000000181000-memory.dmp

memory/1176-22-0x0000000001E20000-0x0000000001E26000-memory.dmp

memory/1204-24-0x0000000002B40000-0x0000000002B46000-memory.dmp

memory/1176-27-0x0000000001E20000-0x0000000001E26000-memory.dmp

memory/1116-26-0x0000000077431000-0x0000000077432000-memory.dmp

memory/1116-25-0x0000000001F90000-0x0000000001F96000-memory.dmp

memory/1204-28-0x0000000002B40000-0x0000000002B46000-memory.dmp

memory/2428-32-0x0000000000140000-0x0000000000146000-memory.dmp

memory/2428-33-0x00000000001D0000-0x00000000001D1000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-19 16:36

Reported

2023-12-19 19:56

Platform

win10v2004-20231215-en

Max time kernel

7s

Max time network

11s

Command Line

sihost.exe

Signatures

Tinba / TinyBanker

trojan banker tinba

UPX packed file

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\1575A7F7 = "C:\\Users\\Admin\\AppData\\Roaming\\1575A7F7\\bin.exe" 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 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\system32\svchost.exe

C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Windows\system32\taskhostw.exe

taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}

C:\Windows\system32\svchost.exe

C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc

C:\Users\Admin\AppData\Local\Temp\5f35d9bc911080ac06dfbaaf230d6e23.exe

"C:\Users\Admin\AppData\Local\Temp\5f35d9bc911080ac06dfbaaf230d6e23.exe"

C:\Windows\SysWOW64\winver.exe

winver

Network

Country Destination Domain Proto
US 138.91.171.81:80 tcp
US 8.8.8.8:53 148.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 62.179.17.96.in-addr.arpa udp

Files

memory/2668-0-0x0000000000400000-0x0000000000417000-memory.dmp

memory/2668-1-0x00000000004A0000-0x00000000004A1000-memory.dmp

memory/3320-2-0x0000000001020000-0x0000000001026000-memory.dmp

memory/3320-3-0x0000000001020000-0x0000000001026000-memory.dmp

memory/2668-4-0x0000000002230000-0x0000000002C30000-memory.dmp

memory/3320-6-0x00007FFB1836D000-0x00007FFB1836E000-memory.dmp

memory/4552-5-0x0000000076F52000-0x0000000076F53000-memory.dmp

memory/4552-7-0x0000000001320000-0x0000000001326000-memory.dmp

memory/2668-8-0x0000000000400000-0x0000000000417000-memory.dmp

memory/2668-9-0x0000000002230000-0x0000000002C30000-memory.dmp

memory/2404-13-0x0000000000480000-0x0000000000486000-memory.dmp

memory/2488-14-0x0000000000060000-0x0000000000066000-memory.dmp

memory/2388-16-0x0000000000100000-0x0000000000106000-memory.dmp

memory/3528-18-0x00000000000B0000-0x00000000000B6000-memory.dmp

memory/2404-17-0x0000000000480000-0x0000000000486000-memory.dmp