Malware Analysis Report

2025-01-19 07:30

Sample ID 231028-ylrkpsfa61
Target NEAS.39320d58fc8d98a54fc6b5472a587440.exe
SHA256 f80075d8bf83331c84a6a47c8ac9418f5d80d5e683ed704b0e9dc2f6c4325723
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

f80075d8bf83331c84a6a47c8ac9418f5d80d5e683ed704b0e9dc2f6c4325723

Threat Level: Known bad

The file NEAS.39320d58fc8d98a54fc6b5472a587440.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 UnmapMainImage

Suspicious use of WriteProcessMemory

Suspicious use of SendNotifyMessage

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-10-28 19:52

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-10-28 19:52

Reported

2023-10-28 20:04

Platform

win7-20231020-en

Max time kernel

150s

Max time network

154s

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-1-5-21-1154728922-3261336865-3456416385-1000\Software\Microsoft\Windows\CurrentVersion\Run\150F0D9A = "C:\\Users\\Admin\\AppData\\Roaming\\150F0D9A\\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

Suspicious use of UnmapMainImage

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

Processes

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:\Users\Admin\AppData\Local\Temp\NEAS.39320d58fc8d98a54fc6b5472a587440.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.39320d58fc8d98a54fc6b5472a587440.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/2184-0-0x0000000000020000-0x0000000000021000-memory.dmp

memory/2184-2-0x0000000001D00000-0x0000000002700000-memory.dmp

memory/1200-3-0x0000000001D50000-0x0000000001D56000-memory.dmp

memory/1808-4-0x00000000000D0000-0x00000000000D6000-memory.dmp

memory/1200-1-0x0000000001D50000-0x0000000001D56000-memory.dmp

memory/1200-6-0x0000000001D50000-0x0000000001D56000-memory.dmp

memory/1808-8-0x00000000776F0000-0x00000000776F1000-memory.dmp

memory/1808-7-0x00000000776EF000-0x00000000776F1000-memory.dmp

memory/1808-5-0x00000000776EF000-0x00000000776F0000-memory.dmp

memory/1200-9-0x0000000077541000-0x0000000077542000-memory.dmp

memory/1808-10-0x0000000000F50000-0x0000000000F66000-memory.dmp

memory/2184-11-0x0000000000400000-0x0000000000417000-memory.dmp

memory/2184-12-0x0000000001D00000-0x0000000002700000-memory.dmp

memory/1808-14-0x00000000000D0000-0x00000000000D6000-memory.dmp

memory/1808-15-0x00000000001D0000-0x00000000001D1000-memory.dmp

memory/1200-16-0x00000000776D0000-0x00000000776D1000-memory.dmp

memory/1152-20-0x00000000001A0000-0x00000000001A6000-memory.dmp

memory/1200-22-0x0000000002B20000-0x0000000002B26000-memory.dmp

memory/1104-24-0x0000000077541000-0x0000000077542000-memory.dmp

memory/1104-23-0x0000000001D60000-0x0000000001D66000-memory.dmp

memory/1152-25-0x00000000001A0000-0x00000000001A6000-memory.dmp

memory/1200-26-0x0000000002B20000-0x0000000002B26000-memory.dmp

memory/1808-27-0x00000000000D0000-0x00000000000D6000-memory.dmp

memory/1808-31-0x00000000001E0000-0x00000000001E1000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-10-28 19:52

Reported

2023-10-28 20:05

Platform

win10v2004-20231023-en

Max time kernel

7s

Max time network

14s

Command Line

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

Signatures

Tinba / TinyBanker

trojan banker tinba

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2231940048-779848787-2990559741-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\2D8BBD13 = "C:\\Users\\Admin\\AppData\\Roaming\\2D8BBD13\\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\svchost.exe

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

C:\Windows\system32\sihost.exe

sihost.exe

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\NEAS.39320d58fc8d98a54fc6b5472a587440.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.39320d58fc8d98a54fc6b5472a587440.exe"

C:\Windows\SysWOW64\winver.exe

winver

Network

Country Destination Domain Proto
US 8.8.8.8:53 138.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp

Files

memory/4700-0-0x00000000005C0000-0x00000000005C1000-memory.dmp

memory/3316-1-0x0000000000B00000-0x0000000000B06000-memory.dmp

memory/3316-2-0x0000000000B00000-0x0000000000B06000-memory.dmp

memory/4700-3-0x00000000021D0000-0x0000000002BD0000-memory.dmp

memory/3020-4-0x0000000077632000-0x0000000077633000-memory.dmp

memory/3316-5-0x00007FF890FCD000-0x00007FF890FCE000-memory.dmp

memory/3020-6-0x0000000001350000-0x0000000001356000-memory.dmp

memory/4700-7-0x0000000000400000-0x0000000000417000-memory.dmp

memory/4700-8-0x00000000021D0000-0x0000000002BD0000-memory.dmp

memory/2360-12-0x00000000000B0000-0x00000000000B6000-memory.dmp

memory/3316-16-0x0000000000B40000-0x0000000000B46000-memory.dmp

memory/2468-14-0x00000000007D0000-0x00000000007D6000-memory.dmp

memory/3316-18-0x0000000000B40000-0x0000000000B46000-memory.dmp

memory/3520-17-0x0000000000440000-0x0000000000446000-memory.dmp