Malware Analysis Report

2025-01-19 07:39

Sample ID 241120-zhzycasqf1
Target 7a20772521bba0f2baf27c4e0ba99ea20f93964958ba6103f3625c5e975e250a.exe
SHA256 7a20772521bba0f2baf27c4e0ba99ea20f93964958ba6103f3625c5e975e250a
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

7a20772521bba0f2baf27c4e0ba99ea20f93964958ba6103f3625c5e975e250a

Threat Level: Known bad

The file 7a20772521bba0f2baf27c4e0ba99ea20f93964958ba6103f3625c5e975e250a.exe was found to be: Known bad.

Malicious Activity Summary

upx tinba banker discovery persistence trojan

Tinba family

Tinba / TinyBanker

Adds Run key to start application

UPX packed file

Program crash

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of FindShellTrayWindow

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-20 20:43

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

2024-11-20 20:43

Reported

2024-11-20 20:46

Platform

win7-20241010-en

Max time kernel

150s

Max time network

153s

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-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\1B927C9A = "C:\\Users\\Admin\\AppData\\Roaming\\1B927C9A\\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\7a20772521bba0f2baf27c4e0ba99ea20f93964958ba6103f3625c5e975e250a.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\7a20772521bba0f2baf27c4e0ba99ea20f93964958ba6103f3625c5e975e250a.exe

"C:\Users\Admin\AppData\Local\Temp\7a20772521bba0f2baf27c4e0ba99ea20f93964958ba6103f3625c5e975e250a.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/1820-0-0x0000000000400000-0x0000000000428000-memory.dmp

memory/1820-1-0x0000000000020000-0x0000000000021000-memory.dmp

memory/1188-4-0x0000000001D10000-0x0000000001D16000-memory.dmp

memory/1188-3-0x0000000001D10000-0x0000000001D16000-memory.dmp

memory/1188-2-0x0000000001D10000-0x0000000001D16000-memory.dmp

memory/1820-5-0x0000000001C10000-0x0000000002610000-memory.dmp

memory/2820-11-0x0000000077B10000-0x0000000077CB9000-memory.dmp

memory/1188-10-0x0000000077B61000-0x0000000077B62000-memory.dmp

memory/2820-9-0x0000000077D0F000-0x0000000077D11000-memory.dmp

memory/2820-8-0x0000000077D0F000-0x0000000077D10000-memory.dmp

memory/2820-7-0x0000000077D10000-0x0000000077D11000-memory.dmp

memory/2820-6-0x0000000000140000-0x0000000000146000-memory.dmp

memory/1820-13-0x0000000000400000-0x0000000000428000-memory.dmp

memory/1820-14-0x0000000001C10000-0x0000000002610000-memory.dmp

memory/1164-21-0x0000000000130000-0x0000000000136000-memory.dmp

memory/1112-24-0x0000000001C40000-0x0000000001C46000-memory.dmp

memory/1188-23-0x0000000001CE0000-0x0000000001CE6000-memory.dmp

memory/1644-31-0x0000000001E50000-0x0000000001E56000-memory.dmp

memory/2820-34-0x0000000000140000-0x0000000000146000-memory.dmp

memory/1644-33-0x0000000077B61000-0x0000000077B62000-memory.dmp

memory/1644-32-0x0000000001E50000-0x0000000001E56000-memory.dmp

memory/1164-28-0x0000000000130000-0x0000000000136000-memory.dmp

memory/1164-27-0x0000000077B61000-0x0000000077B62000-memory.dmp

memory/1188-26-0x0000000001CE0000-0x0000000001CE6000-memory.dmp

memory/1112-25-0x0000000077B61000-0x0000000077B62000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-20 20:43

Reported

2024-11-20 20:46

Platform

win10v2004-20241007-en

Max time kernel

146s

Max time network

141s

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-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\1753D028 = "C:\\Users\\Admin\\AppData\\Roaming\\1753D028\\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\7a20772521bba0f2baf27c4e0ba99ea20f93964958ba6103f3625c5e975e250a.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

Processes

C:\Windows\system32\sihost.exe

sihost.exe

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\7a20772521bba0f2baf27c4e0ba99ea20f93964958ba6103f3625c5e975e250a.exe

"C:\Users\Admin\AppData\Local\Temp\7a20772521bba0f2baf27c4e0ba99ea20f93964958ba6103f3625c5e975e250a.exe"

C:\Windows\SysWOW64\winver.exe

winver

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4976 -ip 4976

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4976 -s 352

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 68.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 197.87.175.4.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 121.118.77.104.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp

Files

memory/3560-0-0x0000000000400000-0x0000000000428000-memory.dmp

memory/3560-1-0x0000000000580000-0x0000000000581000-memory.dmp

memory/3512-3-0x0000000001220000-0x0000000001226000-memory.dmp

memory/3512-2-0x0000000001220000-0x0000000001226000-memory.dmp

memory/3560-4-0x00000000021F0000-0x0000000002BF0000-memory.dmp

memory/3512-6-0x00007FFD4D60D000-0x00007FFD4D60E000-memory.dmp

memory/4976-5-0x0000000077802000-0x0000000077803000-memory.dmp

memory/4976-7-0x00007FFD4D570000-0x00007FFD4D765000-memory.dmp

memory/3560-9-0x0000000000400000-0x0000000000428000-memory.dmp

memory/3560-10-0x00000000021F0000-0x0000000002BF0000-memory.dmp

memory/4976-12-0x0000000002DC0000-0x0000000002DC6000-memory.dmp

memory/2648-14-0x00000000007F0000-0x00000000007F6000-memory.dmp

memory/4976-15-0x0000000002DC0000-0x0000000002DC6000-memory.dmp