Malware Analysis Report

2025-01-19 07:30

Sample ID 231031-kvfynsef84
Target NEAS.78c6e04d35cf296d569133f4ab0369b0.exe
SHA256 806bfe2269333045a12a58d4a142c7e5faf414a1c44485993276c0877c957c1e
Tags
upx 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

806bfe2269333045a12a58d4a142c7e5faf414a1c44485993276c0877c957c1e

Threat Level: Known bad

The file NEAS.78c6e04d35cf296d569133f4ab0369b0.exe was found to be: Known bad.

Malicious Activity Summary

upx tinba banker persistence trojan

Tinba / TinyBanker

UPX packed file

Adds Run key to start application

Unsigned PE

Suspicious use of SendNotifyMessage

Suspicious use of FindShellTrayWindow

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-10-31 08:55

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

2023-10-31 08:55

Reported

2023-10-31 10:49

Platform

win7-20231020-en

Max time kernel

150s

Max time network

151s

Command Line

"taskhost.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-1-5-21-1154728922-3261336865-3456416385-1000\Software\Microsoft\Windows\CurrentVersion\Run\6894564E = "C:\\Users\\Admin\\AppData\\Roaming\\6894564E\\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.78c6e04d35cf296d569133f4ab0369b0.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.78c6e04d35cf296d569133f4ab0369b0.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
US 8.8.8.8:53 uyhgqunqkxnx.pw udp
NL 192.42.116.41:80 uyhgqunqkxnx.pw tcp
US 8.8.8.8:53 vcklmnnejwxx.pw udp
US 216.218.185.162:80 vcklmnnejwxx.pw tcp

Files

memory/1896-0-0x0000000000400000-0x000000000041E000-memory.dmp

memory/1896-1-0x0000000000020000-0x0000000000021000-memory.dmp

memory/1272-3-0x00000000029C0000-0x00000000029C6000-memory.dmp

memory/1896-4-0x0000000001C40000-0x0000000002640000-memory.dmp

memory/1272-2-0x00000000029C0000-0x00000000029C6000-memory.dmp

memory/1892-7-0x0000000077D80000-0x0000000077D81000-memory.dmp

memory/1272-10-0x0000000077BD1000-0x0000000077BD2000-memory.dmp

memory/1892-9-0x0000000077D7F000-0x0000000077D81000-memory.dmp

memory/1892-8-0x0000000077D7F000-0x0000000077D80000-memory.dmp

memory/1892-6-0x0000000000090000-0x0000000000096000-memory.dmp

memory/1272-5-0x00000000029C0000-0x00000000029C6000-memory.dmp

memory/1892-11-0x00000000005B0000-0x00000000005C6000-memory.dmp

memory/1896-12-0x0000000000400000-0x000000000041E000-memory.dmp

memory/1896-13-0x0000000001C40000-0x0000000002640000-memory.dmp

memory/1892-16-0x00000000000D0000-0x00000000000D1000-memory.dmp

memory/1192-20-0x0000000001AA0000-0x0000000001AA6000-memory.dmp

memory/1192-25-0x0000000001AA0000-0x0000000001AA6000-memory.dmp

memory/1892-26-0x0000000000090000-0x0000000000096000-memory.dmp

memory/1136-24-0x0000000077BD1000-0x0000000077BD2000-memory.dmp

memory/1136-23-0x0000000000410000-0x0000000000416000-memory.dmp

memory/1272-22-0x0000000002A20000-0x0000000002A26000-memory.dmp

memory/1272-27-0x0000000002A20000-0x0000000002A26000-memory.dmp

memory/1892-31-0x0000000000190000-0x0000000000191000-memory.dmp

memory/1272-32-0x0000000077D60000-0x0000000077D61000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-10-31 08:55

Reported

2023-10-31 10:49

Platform

win10v2004-20231020-en

Max time kernel

8s

Max time network

12s

Command Line

C:\Windows\Explorer.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-1-5-21-3350690463-3549324357-1323838019-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\E1EF544B = "C:\\Users\\Admin\\AppData\\Roaming\\E1EF544B\\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\taskhostw.exe

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

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.78c6e04d35cf296d569133f4ab0369b0.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.78c6e04d35cf296d569133f4ab0369b0.exe"

C:\Windows\SysWOW64\winver.exe

winver

Network

Country Destination Domain Proto
US 8.8.8.8:53 74.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 2.136.104.51.in-addr.arpa udp
US 8.8.8.8:53 126.22.238.8.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 39.142.81.104.in-addr.arpa udp

Files

memory/4972-0-0x0000000000400000-0x000000000041E000-memory.dmp

memory/4972-1-0x0000000002160000-0x0000000002161000-memory.dmp

memory/4972-2-0x00000000022A0000-0x0000000002CA0000-memory.dmp

memory/3252-3-0x0000000001500000-0x0000000001506000-memory.dmp

memory/3848-4-0x0000000002A20000-0x0000000002A26000-memory.dmp

memory/3252-5-0x0000000001500000-0x0000000001506000-memory.dmp

memory/3848-6-0x0000000077A52000-0x0000000077A53000-memory.dmp

memory/3252-7-0x00007FFC245ED000-0x00007FFC245EE000-memory.dmp

memory/4972-8-0x0000000000400000-0x000000000041E000-memory.dmp

memory/4972-9-0x00000000022A0000-0x0000000002CA0000-memory.dmp

memory/3848-11-0x0000000002A20000-0x0000000002A26000-memory.dmp

memory/2440-13-0x00000000006B0000-0x00000000006B6000-memory.dmp

memory/2432-14-0x00000000009B0000-0x00000000009B6000-memory.dmp

memory/2540-15-0x00000000007F0000-0x00000000007F6000-memory.dmp

memory/3252-19-0x00000000014E0000-0x00000000014E6000-memory.dmp

memory/2440-17-0x00000000006B0000-0x00000000006B6000-memory.dmp

memory/3436-18-0x0000000000DD0000-0x0000000000DD6000-memory.dmp

memory/3252-16-0x00000000014E0000-0x00000000014E6000-memory.dmp

memory/2540-21-0x00000000007F0000-0x00000000007F6000-memory.dmp