Malware Analysis Report

2025-01-19 07:29

Sample ID 231028-wn4lyaga47
Target NEAS.2bb810388c6c611155441bdaa7e64800.exe
SHA256 69f213fb24f163b9c516da07e73a730e7fa8aaf78fd047960d011d046780d7e2
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

69f213fb24f163b9c516da07e73a730e7fa8aaf78fd047960d011d046780d7e2

Threat Level: Known bad

The file NEAS.2bb810388c6c611155441bdaa7e64800.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 behavior: GetForegroundWindowSpam

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-10-28 18:04

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

2023-10-28 18:04

Reported

2023-10-28 19:40

Platform

win7-20231020-en

Max time kernel

150s

Max time network

157s

Command Line

"C:\Users\Admin\AppData\Local\Temp\NEAS.2bb810388c6c611155441bdaa7e64800.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\BB733309 = "C:\\Users\\Admin\\AppData\\Roaming\\BB733309\\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:\Users\Admin\AppData\Local\Temp\NEAS.2bb810388c6c611155441bdaa7e64800.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.2bb810388c6c611155441bdaa7e64800.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/2292-0-0x0000000000400000-0x000000000041D000-memory.dmp

memory/2292-1-0x0000000000020000-0x0000000000021000-memory.dmp

memory/2292-3-0x0000000001BB0000-0x00000000025B0000-memory.dmp

memory/1236-2-0x00000000029F0000-0x00000000029F6000-memory.dmp

memory/2412-5-0x0000000000090000-0x0000000000096000-memory.dmp

memory/1236-4-0x00000000029F0000-0x00000000029F6000-memory.dmp

memory/2412-8-0x0000000077E4F000-0x0000000077E51000-memory.dmp

memory/1236-6-0x00000000029F0000-0x00000000029F6000-memory.dmp

memory/2412-7-0x0000000077E4F000-0x0000000077E50000-memory.dmp

memory/2412-9-0x0000000077E50000-0x0000000077E51000-memory.dmp

memory/1236-10-0x0000000077CA1000-0x0000000077CA2000-memory.dmp

memory/2412-11-0x00000000002E0000-0x00000000002F6000-memory.dmp

memory/2292-12-0x0000000000400000-0x000000000041D000-memory.dmp

memory/2292-13-0x0000000001BB0000-0x00000000025B0000-memory.dmp

memory/2412-15-0x0000000000090000-0x0000000000096000-memory.dmp

memory/2412-16-0x0000000000180000-0x0000000000181000-memory.dmp

memory/1236-17-0x0000000077E30000-0x0000000077E31000-memory.dmp

memory/1112-21-0x0000000001BE0000-0x0000000001BE6000-memory.dmp

memory/1184-24-0x00000000001A0000-0x00000000001A6000-memory.dmp

memory/1112-23-0x0000000077CA1000-0x0000000077CA2000-memory.dmp

memory/1236-27-0x0000000002A00000-0x0000000002A06000-memory.dmp

memory/1184-26-0x00000000001A0000-0x00000000001A6000-memory.dmp

memory/1236-28-0x0000000002A00000-0x0000000002A06000-memory.dmp

memory/2412-32-0x0000000000190000-0x0000000000191000-memory.dmp

memory/1236-33-0x0000000077E10000-0x0000000077E11000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-10-28 18:04

Reported

2023-10-28 19:40

Platform

win10v2004-20231020-en

Max time kernel

8s

Max time network

13s

Command Line

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

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\9145AAC4 = "C:\\Users\\Admin\\AppData\\Roaming\\9145AAC4\\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\taskhostw.exe

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

C:\Windows\system32\DllHost.exe

C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}

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\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.2bb810388c6c611155441bdaa7e64800.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.2bb810388c6c611155441bdaa7e64800.exe"

C:\Windows\SysWOW64\winver.exe

winver

Network

Country Destination Domain Proto
US 8.8.8.8:53 134.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 254.21.238.8.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 208.194.73.20.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 198.1.85.104.in-addr.arpa udp

Files

memory/2684-0-0x0000000000400000-0x000000000041D000-memory.dmp

memory/2684-1-0x0000000002160000-0x0000000002161000-memory.dmp

memory/2684-2-0x0000000002320000-0x0000000002D20000-memory.dmp

memory/4452-3-0x0000000000DA0000-0x0000000000DA6000-memory.dmp

memory/3160-6-0x00007FFCF714D000-0x00007FFCF714E000-memory.dmp

memory/3160-5-0x0000000002950000-0x0000000002956000-memory.dmp

memory/4452-7-0x0000000077022000-0x0000000077023000-memory.dmp

memory/2684-8-0x0000000000400000-0x000000000041D000-memory.dmp

memory/2684-9-0x0000000002320000-0x0000000002D20000-memory.dmp

memory/3160-10-0x00007FFCF72E0000-0x00007FFCF72E1000-memory.dmp

memory/4452-12-0x0000000000DA0000-0x0000000000DA6000-memory.dmp

memory/2336-14-0x00000000001D0000-0x00000000001D6000-memory.dmp

memory/2316-16-0x0000000000770000-0x0000000000776000-memory.dmp

memory/2400-15-0x0000000000C80000-0x0000000000C86000-memory.dmp

memory/2336-17-0x00007FFCF714D000-0x00007FFCF714E000-memory.dmp

memory/2336-18-0x00000000001D0000-0x00000000001D6000-memory.dmp

memory/2400-19-0x0000000000C80000-0x0000000000C86000-memory.dmp

memory/3160-20-0x0000000002940000-0x0000000002946000-memory.dmp

memory/3472-21-0x0000000000AE0000-0x0000000000AE6000-memory.dmp

memory/3692-22-0x0000000000230000-0x0000000000236000-memory.dmp