Malware Analysis Report

2025-01-19 07:23

Sample ID 231220-pzg4raeea3
Target b43aac7739ee859b9564fafb87371eaa
SHA256 ac96f1c6b055b998b761e7ccc4060e325d4b18c8b9c035f832ea36064e581f63
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

ac96f1c6b055b998b761e7ccc4060e325d4b18c8b9c035f832ea36064e581f63

Threat Level: Known bad

The file b43aac7739ee859b9564fafb87371eaa 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 WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of FindShellTrayWindow

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-20 12:45

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

2023-12-20 12:45

Reported

2023-12-21 00:09

Platform

win7-20231215-en

Max time kernel

152s

Max time network

177s

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-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\FF04C29D = "C:\\Users\\Admin\\AppData\\Roaming\\FF04C29D\\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 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:\Users\Admin\AppData\Local\Temp\b43aac7739ee859b9564fafb87371eaa.exe

"C:\Users\Admin\AppData\Local\Temp\b43aac7739ee859b9564fafb87371eaa.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/2080-0-0x0000000000400000-0x0000000000428000-memory.dmp

memory/2080-1-0x0000000000020000-0x0000000000021000-memory.dmp

memory/2080-3-0x0000000001C90000-0x0000000002690000-memory.dmp

memory/1320-2-0x0000000002730000-0x0000000002736000-memory.dmp

memory/2716-4-0x0000000000090000-0x0000000000096000-memory.dmp

memory/1320-7-0x0000000002730000-0x0000000002736000-memory.dmp

memory/1320-10-0x0000000077841000-0x0000000077842000-memory.dmp

memory/2716-9-0x00000000779F0000-0x00000000779F1000-memory.dmp

memory/2716-8-0x00000000779EF000-0x00000000779F1000-memory.dmp

memory/2716-6-0x00000000779EF000-0x00000000779F0000-memory.dmp

memory/2716-11-0x00000000003A0000-0x00000000003B6000-memory.dmp

memory/2080-12-0x0000000000400000-0x0000000000428000-memory.dmp

memory/2080-13-0x0000000001C90000-0x0000000002690000-memory.dmp

memory/2716-16-0x0000000000180000-0x0000000000181000-memory.dmp

memory/2716-15-0x0000000000090000-0x0000000000096000-memory.dmp

memory/1268-21-0x0000000000120000-0x0000000000126000-memory.dmp

memory/1320-27-0x0000000002710000-0x0000000002716000-memory.dmp

memory/1268-26-0x0000000000120000-0x0000000000126000-memory.dmp

memory/1164-25-0x0000000077841000-0x0000000077842000-memory.dmp

memory/1164-24-0x0000000001BC0000-0x0000000001BC6000-memory.dmp

memory/1320-23-0x0000000002710000-0x0000000002716000-memory.dmp

memory/2716-31-0x0000000000190000-0x0000000000191000-memory.dmp

memory/2716-32-0x0000000000090000-0x0000000000096000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-20 12:45

Reported

2023-12-21 00:09

Platform

win10v2004-20231215-en

Max time kernel

24s

Max time network

34s

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-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\63A77750 = "C:\\Users\\Admin\\AppData\\Roaming\\63A77750\\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:\Users\Admin\AppData\Local\Temp\b43aac7739ee859b9564fafb87371eaa.exe

"C:\Users\Admin\AppData\Local\Temp\b43aac7739ee859b9564fafb87371eaa.exe"

C:\Windows\SysWOW64\winver.exe

winver

Network

Country Destination Domain Proto
NL 52.142.223.178:80 tcp
US 8.8.8.8:53 2.181.190.20.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp

Files

memory/2944-0-0x0000000000400000-0x0000000000428000-memory.dmp

memory/2944-1-0x00000000005D0000-0x00000000005D1000-memory.dmp

memory/2944-2-0x0000000002260000-0x0000000002C60000-memory.dmp

memory/3560-5-0x0000000000B60000-0x0000000000B66000-memory.dmp

memory/2396-4-0x0000000002990000-0x0000000002996000-memory.dmp

memory/3560-7-0x00007FFA3AC2D000-0x00007FFA3AC2E000-memory.dmp

memory/2396-6-0x0000000077B02000-0x0000000077B03000-memory.dmp

memory/3560-3-0x0000000000B60000-0x0000000000B66000-memory.dmp

memory/2944-8-0x0000000000400000-0x0000000000428000-memory.dmp

memory/2944-9-0x0000000002260000-0x0000000002C60000-memory.dmp

memory/2396-11-0x0000000002990000-0x0000000002996000-memory.dmp

memory/2692-13-0x0000000000E20000-0x0000000000E26000-memory.dmp

memory/2684-15-0x0000000000190000-0x0000000000196000-memory.dmp

memory/2692-17-0x0000000000E20000-0x0000000000E26000-memory.dmp

memory/3560-16-0x00000000008D0000-0x00000000008D6000-memory.dmp

memory/2848-14-0x0000000000710000-0x0000000000716000-memory.dmp