Malware Analysis Report

2025-01-19 07:39

Sample ID 241118-hp2bba1ke1
Target c3f8b49c830db63708f0340e4532c378b0085a024d1d3852b384d0def52e7988N.exe
SHA256 c3f8b49c830db63708f0340e4532c378b0085a024d1d3852b384d0def52e7988
Tags
upx tinba banker discovery 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

c3f8b49c830db63708f0340e4532c378b0085a024d1d3852b384d0def52e7988

Threat Level: Known bad

The file c3f8b49c830db63708f0340e4532c378b0085a024d1d3852b384d0def52e7988N.exe was found to be: Known bad.

Malicious Activity Summary

upx tinba banker discovery persistence trojan

Tinba / TinyBanker

Tinba family

Adds Run key to start application

UPX packed file

Program crash

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

Suspicious use of UnmapMainImage

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-18 06:55

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
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-18 06:55

Reported

2024-11-18 06:57

Platform

win7-20240903-en

Max time kernel

119s

Max time network

119s

Command Line

"taskhost.exe"

Signatures

Tinba / TinyBanker

trojan banker tinba

Tinba family

tinba

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\5948315A = "C:\\Users\\Admin\\AppData\\Roaming\\5948315A\\bin.exe" C:\Windows\SysWOW64\winver.exe N/A

UPX packed file

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

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\c3f8b49c830db63708f0340e4532c378b0085a024d1d3852b384d0def52e7988N.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 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

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\winver.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:\Windows\system32\DllHost.exe

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

C:\Users\Admin\AppData\Local\Temp\c3f8b49c830db63708f0340e4532c378b0085a024d1d3852b384d0def52e7988N.exe

"C:\Users\Admin\AppData\Local\Temp\c3f8b49c830db63708f0340e4532c378b0085a024d1d3852b384d0def52e7988N.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/2856-0-0x0000000000400000-0x000000000041D000-memory.dmp

memory/1212-3-0x0000000002ED0000-0x0000000002ED6000-memory.dmp

memory/1212-2-0x0000000002ED0000-0x0000000002ED6000-memory.dmp

memory/2856-1-0x0000000000020000-0x0000000000021000-memory.dmp

memory/1212-4-0x0000000002ED0000-0x0000000002ED6000-memory.dmp

memory/2856-5-0x0000000001C70000-0x0000000002670000-memory.dmp

memory/1212-10-0x0000000076E41000-0x0000000076E42000-memory.dmp

memory/2628-9-0x0000000076FEF000-0x0000000076FF1000-memory.dmp

memory/2628-8-0x0000000076FEF000-0x0000000076FF0000-memory.dmp

memory/2628-7-0x0000000076FF0000-0x0000000076FF1000-memory.dmp

memory/2628-6-0x00000000000F0000-0x00000000000F6000-memory.dmp

memory/2628-11-0x0000000076DF0000-0x0000000076F99000-memory.dmp

memory/2856-12-0x0000000000400000-0x000000000041D000-memory.dmp

memory/2856-13-0x0000000001C70000-0x0000000002670000-memory.dmp

memory/1212-21-0x0000000002050000-0x0000000002056000-memory.dmp

memory/2628-28-0x00000000000F0000-0x00000000000F6000-memory.dmp

memory/1116-27-0x0000000076E41000-0x0000000076E42000-memory.dmp

memory/1116-26-0x0000000000320000-0x0000000000326000-memory.dmp

memory/1592-25-0x0000000076E41000-0x0000000076E42000-memory.dmp

memory/1592-24-0x0000000001C10000-0x0000000001C16000-memory.dmp

memory/1592-23-0x0000000001C10000-0x0000000001C16000-memory.dmp

memory/1164-19-0x0000000002110000-0x0000000002116000-memory.dmp

memory/1212-30-0x0000000002050000-0x0000000002056000-memory.dmp

memory/1164-29-0x0000000002110000-0x0000000002116000-memory.dmp

memory/2628-35-0x0000000000370000-0x0000000000371000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-18 06:55

Reported

2024-11-18 07:01

Platform

win10v2004-20241007-en

Max time kernel

118s

Max time network

101s

Command Line

sihost.exe

Signatures

Tinba / TinyBanker

trojan banker tinba

Tinba family

tinba

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\D793E835 = "C:\\Users\\Admin\\AppData\\Roaming\\D793E835\\bin.exe" C:\Windows\SysWOW64\winver.exe N/A

UPX packed file

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

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\winver.exe

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\c3f8b49c830db63708f0340e4532c378b0085a024d1d3852b384d0def52e7988N.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 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 AdjustPrivilegeToken

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

Suspicious use of UnmapMainImage

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

Processes

C:\Windows\system32\sihost.exe

sihost.exe

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\c3f8b49c830db63708f0340e4532c378b0085a024d1d3852b384d0def52e7988N.exe

"C:\Users\Admin\AppData\Local\Temp\c3f8b49c830db63708f0340e4532c378b0085a024d1d3852b384d0def52e7988N.exe"

C:\Windows\SysWOW64\winver.exe

winver

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3368 -ip 3368

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3368 -s 352

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 76.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 197.87.175.4.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp

Files

memory/4928-0-0x0000000000400000-0x000000000041D000-memory.dmp

memory/4928-1-0x00000000005A0000-0x00000000005A1000-memory.dmp

memory/3416-3-0x00000000010B0000-0x00000000010B6000-memory.dmp

memory/3416-2-0x00000000010B0000-0x00000000010B6000-memory.dmp

memory/4928-4-0x0000000002250000-0x0000000002C50000-memory.dmp

memory/3416-6-0x00007FFC2D92D000-0x00007FFC2D92E000-memory.dmp

memory/3368-5-0x00000000778C2000-0x00000000778C3000-memory.dmp

memory/3368-7-0x00007FFC2D890000-0x00007FFC2DA85000-memory.dmp

memory/4928-9-0x0000000000400000-0x000000000041D000-memory.dmp

memory/4928-10-0x0000000002250000-0x0000000002C50000-memory.dmp

memory/3416-11-0x00007FFC2DAC0000-0x00007FFC2DAC1000-memory.dmp

memory/3368-13-0x0000000000AA0000-0x0000000000AA6000-memory.dmp

memory/2808-15-0x0000000000C40000-0x0000000000C46000-memory.dmp

memory/3368-16-0x0000000000AA0000-0x0000000000AA6000-memory.dmp