Malware Analysis Report

2025-01-19 07:24

Sample ID 231105-zsaffaed57
Target NEAS.b14829b7230de67bfa91538920308830.exe
SHA256 6113d5e0fe5e37c2f7a52e6033301fbc56f7da3ebc335068c5798feab51ccf74
Tags
tinba banker 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

6113d5e0fe5e37c2f7a52e6033301fbc56f7da3ebc335068c5798feab51ccf74

Threat Level: Known bad

The file NEAS.b14829b7230de67bfa91538920308830.exe was found to be: Known bad.

Malicious Activity Summary

tinba banker persistence trojan

Tinba / TinyBanker

Adds Run key to start application

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-11-05 20:58

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-11-05 20:58

Reported

2023-11-05 21:00

Platform

win7-20231020-en

Max time kernel

150s

Max time network

153s

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-1-5-21-1154728922-3261336865-3456416385-1000\Software\Microsoft\Windows\CurrentVersion\Run\C06B4FD3 = "C:\\Users\\Admin\\AppData\\Roaming\\C06B4FD3\\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 behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A 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 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:\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:\Users\Admin\AppData\Local\Temp\NEAS.b14829b7230de67bfa91538920308830.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.b14829b7230de67bfa91538920308830.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/2176-0-0x0000000000020000-0x0000000000021000-memory.dmp

memory/2176-2-0x0000000001C70000-0x0000000002670000-memory.dmp

memory/1232-1-0x0000000002A40000-0x0000000002A46000-memory.dmp

memory/3008-4-0x00000000000D0000-0x00000000000D6000-memory.dmp

memory/1232-3-0x0000000002A40000-0x0000000002A46000-memory.dmp

memory/3008-7-0x00000000776BF000-0x00000000776C1000-memory.dmp

memory/1232-9-0x0000000077511000-0x0000000077512000-memory.dmp

memory/3008-8-0x00000000776C0000-0x00000000776C1000-memory.dmp

memory/3008-6-0x00000000776BF000-0x00000000776C0000-memory.dmp

memory/1232-5-0x0000000002A40000-0x0000000002A46000-memory.dmp

memory/3008-10-0x00000000008B0000-0x00000000008C6000-memory.dmp

memory/2176-11-0x0000000000400000-0x0000000000417000-memory.dmp

memory/2176-12-0x0000000001C70000-0x0000000002670000-memory.dmp

memory/3008-14-0x00000000000D0000-0x00000000000D6000-memory.dmp

memory/3008-15-0x00000000001C0000-0x00000000001C1000-memory.dmp

memory/1232-16-0x00000000776A0000-0x00000000776A1000-memory.dmp

memory/1116-21-0x00000000003A0000-0x00000000003A6000-memory.dmp

memory/1164-23-0x0000000000130000-0x0000000000136000-memory.dmp

memory/1116-22-0x0000000077511000-0x0000000077512000-memory.dmp

memory/1164-25-0x0000000077511000-0x0000000077512000-memory.dmp

memory/1232-26-0x0000000002AA0000-0x0000000002AA6000-memory.dmp

memory/1232-27-0x0000000002AA0000-0x0000000002AA6000-memory.dmp

memory/1116-28-0x00000000003A0000-0x00000000003A6000-memory.dmp

memory/1164-30-0x0000000000130000-0x0000000000136000-memory.dmp

memory/3008-32-0x00000000001D0000-0x00000000001D1000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-11-05 20:58

Reported

2023-11-05 21:01

Platform

win10v2004-20231020-en

Max time kernel

7s

Max time network

16s

Command Line

C:\Windows\Explorer.EXE

Signatures

Tinba / TinyBanker

trojan banker tinba

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-1873812795-1433807462-1429862679-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\1226286B = "C:\\Users\\Admin\\AppData\\Roaming\\1226286B\\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\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Windows\system32\svchost.exe

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

C:\Windows\system32\sihost.exe

sihost.exe

C:\Users\Admin\AppData\Local\Temp\NEAS.b14829b7230de67bfa91538920308830.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.b14829b7230de67bfa91538920308830.exe"

C:\Windows\SysWOW64\winver.exe

winver

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 134.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 2.136.104.51.in-addr.arpa udp

Files

memory/2676-0-0x0000000000580000-0x0000000000581000-memory.dmp

memory/3320-1-0x00000000020A0000-0x00000000020A6000-memory.dmp

memory/3320-2-0x00000000020A0000-0x00000000020A6000-memory.dmp

memory/2676-3-0x00000000020D0000-0x0000000002AD0000-memory.dmp

memory/3280-5-0x0000000077962000-0x0000000077963000-memory.dmp

memory/3280-4-0x0000000002310000-0x0000000002316000-memory.dmp

memory/3320-6-0x00007FFD1A40D000-0x00007FFD1A40E000-memory.dmp

memory/3280-7-0x0000000000CD0000-0x0000000000CE2000-memory.dmp

memory/2676-8-0x0000000000400000-0x0000000000417000-memory.dmp

memory/2676-9-0x00000000020D0000-0x0000000002AD0000-memory.dmp

memory/3320-10-0x00007FFD1A5A0000-0x00007FFD1A5A1000-memory.dmp

memory/2660-14-0x0000000000F00000-0x0000000000F06000-memory.dmp

memory/2864-15-0x0000000000FA0000-0x0000000000FA6000-memory.dmp

memory/3320-17-0x00000000006C0000-0x00000000006C6000-memory.dmp

memory/2864-19-0x0000000000FA0000-0x0000000000FA6000-memory.dmp

memory/3472-20-0x0000000000AF0000-0x0000000000AF6000-memory.dmp