Malware Analysis Report

2025-01-19 07:39

Sample ID 241102-zw37xswark
Target 03f03a4cb613667f7bf34ef004fe1b4fe9b76d7abfd168dc7e6964dc2a059e17N
SHA256 03f03a4cb613667f7bf34ef004fe1b4fe9b76d7abfd168dc7e6964dc2a059e17
Tags
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

03f03a4cb613667f7bf34ef004fe1b4fe9b76d7abfd168dc7e6964dc2a059e17

Threat Level: Known bad

The file 03f03a4cb613667f7bf34ef004fe1b4fe9b76d7abfd168dc7e6964dc2a059e17N was found to be: Known bad.

Malicious Activity Summary

tinba banker discovery persistence trojan

Tinba family

Tinba / TinyBanker

Adds Run key to start application

Unsigned PE

System Location Discovery: System Language Discovery

Program crash

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious use of UnmapMainImage

Suspicious use of FindShellTrayWindow

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-02 21:04

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-02 21:04

Reported

2024-11-02 21:07

Platform

win7-20240708-en

Max time kernel

149s

Max time network

148s

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-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\6EC0855A = "C:\\Users\\Admin\\AppData\\Roaming\\6EC0855A\\bin.exe" C:\Windows\SysWOW64\winver.exe 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\03f03a4cb613667f7bf34ef004fe1b4fe9b76d7abfd168dc7e6964dc2a059e17N.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
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe 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\03f03a4cb613667f7bf34ef004fe1b4fe9b76d7abfd168dc7e6964dc2a059e17N.exe

"C:\Users\Admin\AppData\Local\Temp\03f03a4cb613667f7bf34ef004fe1b4fe9b76d7abfd168dc7e6964dc2a059e17N.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/2272-0-0x0000000000020000-0x0000000000021000-memory.dmp

memory/1204-1-0x0000000002DC0000-0x0000000002DC6000-memory.dmp

memory/1204-3-0x0000000002DC0000-0x0000000002DC6000-memory.dmp

memory/1204-2-0x0000000002DC0000-0x0000000002DC6000-memory.dmp

memory/2272-4-0x0000000001E80000-0x0000000002880000-memory.dmp

memory/2664-6-0x0000000077200000-0x0000000077201000-memory.dmp

memory/2664-5-0x00000000000B0000-0x00000000000B6000-memory.dmp

memory/2664-7-0x00000000771FF000-0x0000000077200000-memory.dmp

memory/2664-8-0x00000000771FF000-0x0000000077201000-memory.dmp

memory/1204-9-0x0000000077051000-0x0000000077052000-memory.dmp

memory/2664-10-0x0000000077000000-0x00000000771A9000-memory.dmp

memory/2272-11-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2272-12-0x0000000001E80000-0x0000000002880000-memory.dmp

memory/1108-25-0x0000000000210000-0x0000000000216000-memory.dmp

memory/1520-30-0x0000000001E10000-0x0000000001E16000-memory.dmp

memory/1520-29-0x0000000077051000-0x0000000077052000-memory.dmp

memory/1204-28-0x0000000002CF0000-0x0000000002CF6000-memory.dmp

memory/1172-27-0x00000000001C0000-0x00000000001C6000-memory.dmp

memory/1108-26-0x0000000077051000-0x0000000077052000-memory.dmp

memory/1520-24-0x0000000001E10000-0x0000000001E16000-memory.dmp

memory/1204-21-0x0000000002CF0000-0x0000000002CF6000-memory.dmp

memory/1172-19-0x00000000001C0000-0x00000000001C6000-memory.dmp

memory/2664-31-0x00000000000B0000-0x00000000000B6000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-02 21:04

Reported

2024-11-02 21:08

Platform

win10v2004-20241007-en

Max time kernel

149s

Max time network

153s

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-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\6CB2C11C = "C:\\Users\\Admin\\AppData\\Roaming\\6CB2C11C\\bin.exe" C:\Windows\SysWOW64\winver.exe 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:\Windows\SysWOW64\winver.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\03f03a4cb613667f7bf34ef004fe1b4fe9b76d7abfd168dc7e6964dc2a059e17N.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\03f03a4cb613667f7bf34ef004fe1b4fe9b76d7abfd168dc7e6964dc2a059e17N.exe

"C:\Users\Admin\AppData\Local\Temp\03f03a4cb613667f7bf34ef004fe1b4fe9b76d7abfd168dc7e6964dc2a059e17N.exe"

C:\Windows\SysWOW64\winver.exe

winver

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 848 -ip 848

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 848 -s 352

Network

Country Destination Domain Proto
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 17.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 75.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 31.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 28.73.42.20.in-addr.arpa udp

Files

memory/1120-0-0x0000000000570000-0x0000000000571000-memory.dmp

memory/3488-2-0x0000000001290000-0x0000000001296000-memory.dmp

memory/3488-1-0x0000000001290000-0x0000000001296000-memory.dmp

memory/1120-3-0x0000000002420000-0x0000000002E20000-memory.dmp

memory/3488-5-0x00007FFDF0E4D000-0x00007FFDF0E4E000-memory.dmp

memory/848-4-0x0000000076FB2000-0x0000000076FB3000-memory.dmp

memory/848-6-0x00007FFDF0DB0000-0x00007FFDF0FA5000-memory.dmp

memory/3488-7-0x00007FFDF0FE0000-0x00007FFDF0FE1000-memory.dmp

memory/1120-8-0x0000000000400000-0x0000000000414000-memory.dmp

memory/1120-9-0x0000000002420000-0x0000000002E20000-memory.dmp

memory/848-11-0x0000000002D80000-0x0000000002D86000-memory.dmp

memory/2652-13-0x0000000000E60000-0x0000000000E66000-memory.dmp

memory/848-14-0x0000000002D80000-0x0000000002D86000-memory.dmp

memory/2652-16-0x00007FFDF0FD0000-0x00007FFDF0FD1000-memory.dmp