Malware Analysis Report

2025-01-19 07:30

Sample ID 231028-ynwx7sac26
Target NEAS.792b557188f4c723cbc9333066fb3000.exe
SHA256 a134058e4b8a9c17d3b92b680894f5128a3fb3e05fb2e5e2474e81fa82e44e49
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

a134058e4b8a9c17d3b92b680894f5128a3fb3e05fb2e5e2474e81fa82e44e49

Threat Level: Known bad

The file NEAS.792b557188f4c723cbc9333066fb3000.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: EnumeratesProcesses

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-10-28 19:56

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 19:56

Reported

2023-10-28 21:31

Platform

win7-20231020-en

Max time kernel

150s

Max time network

152s

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-1-5-21-2084844033-2744876406-2053742436-1000\Software\Microsoft\Windows\CurrentVersion\Run\9D7A8D75 = "C:\\Users\\Admin\\AppData\\Roaming\\9D7A8D75\\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

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.792b557188f4c723cbc9333066fb3000.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.792b557188f4c723cbc9333066fb3000.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
US 8.8.8.8:53 cmnsgscccrej.pw udp
US 216.218.185.162:80 cmnsgscccrej.pw tcp
US 8.8.8.8:53 evbsdqvgmpph.pw udp
US 216.218.185.162:80 evbsdqvgmpph.pw tcp

Files

memory/2924-0-0x0000000000400000-0x000000000041D000-memory.dmp

memory/2924-1-0x0000000000020000-0x0000000000021000-memory.dmp

memory/2924-3-0x0000000001BB0000-0x00000000025B0000-memory.dmp

memory/1260-2-0x0000000002B30000-0x0000000002B36000-memory.dmp

memory/2768-4-0x00000000000D0000-0x00000000000D6000-memory.dmp

memory/2768-6-0x000000007715F000-0x0000000077160000-memory.dmp

memory/2768-9-0x0000000077160000-0x0000000077161000-memory.dmp

memory/2768-8-0x000000007715F000-0x0000000077161000-memory.dmp

memory/1260-7-0x0000000002B30000-0x0000000002B36000-memory.dmp

memory/1260-10-0x0000000076FB1000-0x0000000076FB2000-memory.dmp

memory/2768-11-0x0000000000460000-0x0000000000476000-memory.dmp

memory/2924-12-0x0000000000400000-0x000000000041D000-memory.dmp

memory/2924-13-0x0000000001BB0000-0x00000000025B0000-memory.dmp

memory/2768-14-0x00000000000D0000-0x00000000000D6000-memory.dmp

memory/2768-17-0x00000000001C0000-0x00000000001C1000-memory.dmp

memory/1260-18-0x0000000077140000-0x0000000077141000-memory.dmp

memory/1124-23-0x0000000000190000-0x0000000000196000-memory.dmp

memory/1124-24-0x0000000076FB1000-0x0000000076FB2000-memory.dmp

memory/1216-26-0x00000000001A0000-0x00000000001A6000-memory.dmp

memory/1260-28-0x0000000002B50000-0x0000000002B56000-memory.dmp

memory/1216-29-0x00000000001A0000-0x00000000001A6000-memory.dmp

memory/1260-30-0x0000000002B50000-0x0000000002B56000-memory.dmp

memory/2768-34-0x00000000001D0000-0x00000000001D1000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-10-28 19:56

Reported

2023-10-28 21:31

Platform

win10v2004-20231020-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-1-5-21-1873812795-1433807462-1429862679-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\FA3A4C35 = "C:\\Users\\Admin\\AppData\\Roaming\\FA3A4C35\\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 UnistackSvcGroup -s CDPUserSvc

C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe

"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca

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\taskhostw.exe

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

C:\Users\Admin\AppData\Local\Temp\NEAS.792b557188f4c723cbc9333066fb3000.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.792b557188f4c723cbc9333066fb3000.exe"

C:\Windows\SysWOW64\winver.exe

winver

Network

Country Destination Domain Proto
US 8.8.8.8:53 59.128.231.4.in-addr.arpa udp
US 8.8.8.8:53 126.23.238.8.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 64.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp

Files

memory/1076-0-0x0000000000400000-0x000000000041D000-memory.dmp

memory/1076-1-0x0000000002160000-0x0000000002161000-memory.dmp

memory/3220-2-0x0000000002CC0000-0x0000000002CC6000-memory.dmp

memory/3220-3-0x0000000002CC0000-0x0000000002CC6000-memory.dmp

memory/1076-4-0x00000000021A0000-0x0000000002BA0000-memory.dmp

memory/724-6-0x0000000077342000-0x0000000077343000-memory.dmp

memory/724-5-0x0000000002D20000-0x0000000002D26000-memory.dmp

memory/724-8-0x00000000001B0000-0x00000000001C2000-memory.dmp

memory/3220-7-0x00007FFD37CED000-0x00007FFD37CEE000-memory.dmp

memory/1076-9-0x0000000000400000-0x000000000041D000-memory.dmp

memory/1076-10-0x00000000021A0000-0x0000000002BA0000-memory.dmp

memory/3220-11-0x00007FFD37E80000-0x00007FFD37E81000-memory.dmp

memory/2396-15-0x0000000000260000-0x0000000000266000-memory.dmp

memory/2380-17-0x0000000000F80000-0x0000000000F86000-memory.dmp

memory/3220-18-0x0000000000F20000-0x0000000000F26000-memory.dmp

memory/3708-22-0x0000000000AB0000-0x0000000000AB6000-memory.dmp

memory/2516-19-0x0000000000160000-0x0000000000166000-memory.dmp

memory/2516-16-0x0000000000160000-0x0000000000166000-memory.dmp

memory/2396-21-0x0000000000260000-0x0000000000266000-memory.dmp

memory/3472-20-0x0000000000A20000-0x0000000000A26000-memory.dmp