Malware Analysis Report

2025-01-19 07:41

Sample ID 241105-ytdzksybqj
Target 179d7c2a83202cfb86a49b15cf693c7d803afe9582907932d4ee8138558bf984
SHA256 179d7c2a83202cfb86a49b15cf693c7d803afe9582907932d4ee8138558bf984
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

179d7c2a83202cfb86a49b15cf693c7d803afe9582907932d4ee8138558bf984

Threat Level: Known bad

The file 179d7c2a83202cfb86a49b15cf693c7d803afe9582907932d4ee8138558bf984 was found to be: Known bad.

Malicious Activity Summary

tinba banker discovery persistence trojan

Tinba / TinyBanker

Tinba family

Adds Run key to start application

System Location Discovery: System Language Discovery

Unsigned PE

Program crash

Suspicious use of FindShellTrayWindow

Modifies registry class

Suspicious use of UnmapMainImage

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-05 20:04

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-05 20:04

Reported

2024-11-05 20:06

Platform

win7-20240708-en

Max time kernel

148s

Max time network

150s

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\656A9C1E = "C:\\Users\\Admin\\AppData\\Roaming\\656A9C1E\\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\179d7c2a83202cfb86a49b15cf693c7d803afe9582907932d4ee8138558bf984.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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 388 wrote to memory of 2624 N/A C:\Users\Admin\AppData\Local\Temp\179d7c2a83202cfb86a49b15cf693c7d803afe9582907932d4ee8138558bf984.exe C:\Windows\SysWOW64\winver.exe
PID 388 wrote to memory of 2624 N/A C:\Users\Admin\AppData\Local\Temp\179d7c2a83202cfb86a49b15cf693c7d803afe9582907932d4ee8138558bf984.exe C:\Windows\SysWOW64\winver.exe
PID 388 wrote to memory of 2624 N/A C:\Users\Admin\AppData\Local\Temp\179d7c2a83202cfb86a49b15cf693c7d803afe9582907932d4ee8138558bf984.exe C:\Windows\SysWOW64\winver.exe
PID 388 wrote to memory of 2624 N/A C:\Users\Admin\AppData\Local\Temp\179d7c2a83202cfb86a49b15cf693c7d803afe9582907932d4ee8138558bf984.exe C:\Windows\SysWOW64\winver.exe
PID 388 wrote to memory of 2624 N/A C:\Users\Admin\AppData\Local\Temp\179d7c2a83202cfb86a49b15cf693c7d803afe9582907932d4ee8138558bf984.exe C:\Windows\SysWOW64\winver.exe
PID 2624 wrote to memory of 1192 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\Explorer.EXE
PID 2624 wrote to memory of 1120 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\system32\taskhost.exe
PID 2624 wrote to memory of 1164 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\system32\Dwm.exe
PID 2624 wrote to memory of 1192 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\Explorer.EXE
PID 2624 wrote to memory of 1632 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\system32\DllHost.exe
PID 2624 wrote to memory of 388 N/A C:\Windows\SysWOW64\winver.exe C:\Users\Admin\AppData\Local\Temp\179d7c2a83202cfb86a49b15cf693c7d803afe9582907932d4ee8138558bf984.exe

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\179d7c2a83202cfb86a49b15cf693c7d803afe9582907932d4ee8138558bf984.exe

"C:\Users\Admin\AppData\Local\Temp\179d7c2a83202cfb86a49b15cf693c7d803afe9582907932d4ee8138558bf984.exe"

C:\Windows\SysWOW64\winver.exe

winver

Network

Country Destination Domain Proto
US 8.8.8.8:53 www.google.com udp
US 8.8.8.8:53 insamertojertoq.cc udp
US 8.8.8.8:53 yxjsibeugmmj.com udp
US 216.218.185.162:80 yxjsibeugmmj.com tcp

Files

memory/388-0-0x00000000001D0000-0x00000000001D2000-memory.dmp

memory/2624-3-0x0000000000160000-0x0000000000166000-memory.dmp

memory/1192-5-0x0000000002F40000-0x0000000002F46000-memory.dmp

memory/1192-2-0x0000000002F40000-0x0000000002F46000-memory.dmp

memory/1192-1-0x0000000002F40000-0x0000000002F46000-memory.dmp

memory/388-6-0x00000000025C0000-0x0000000002FC0000-memory.dmp

memory/2624-13-0x0000000076D30000-0x0000000076ED9000-memory.dmp

memory/1192-12-0x0000000076D81000-0x0000000076D82000-memory.dmp

memory/2624-11-0x00000000001A0000-0x00000000001A1000-memory.dmp

memory/2624-10-0x0000000076F2F000-0x0000000076F31000-memory.dmp

memory/2624-9-0x0000000076F2F000-0x0000000076F30000-memory.dmp

memory/2624-8-0x0000000076F30000-0x0000000076F31000-memory.dmp

memory/2624-7-0x0000000000160000-0x0000000000166000-memory.dmp

memory/388-14-0x0000000000400000-0x000000000041D000-memory.dmp

memory/1632-23-0x0000000001F20000-0x0000000001F26000-memory.dmp

memory/1192-21-0x0000000002F50000-0x0000000002F56000-memory.dmp

memory/1120-26-0x0000000076D81000-0x0000000076D82000-memory.dmp

memory/1120-25-0x00000000002D0000-0x00000000002D6000-memory.dmp

memory/1164-27-0x0000000001F80000-0x0000000001F86000-memory.dmp

memory/1192-28-0x0000000002F50000-0x0000000002F56000-memory.dmp

memory/1632-30-0x0000000076D81000-0x0000000076D82000-memory.dmp

memory/1632-29-0x0000000001F20000-0x0000000001F26000-memory.dmp

memory/1164-18-0x0000000001F80000-0x0000000001F86000-memory.dmp

memory/1120-16-0x00000000002D0000-0x00000000002D6000-memory.dmp

memory/388-31-0x00000000025C0000-0x0000000002FC0000-memory.dmp

memory/2624-32-0x0000000000160000-0x0000000000166000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-05 20:04

Reported

2024-11-05 20:06

Platform

win10v2004-20241007-en

Max time kernel

149s

Max time network

152s

Command Line

sihost.exe

Signatures

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\179d7c2a83202cfb86a49b15cf693c7d803afe9582907932d4ee8138558bf984.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\winver.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ C:\Windows\Explorer.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
Token: SeShutdownPrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\Explorer.EXE N/A
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
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.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\179d7c2a83202cfb86a49b15cf693c7d803afe9582907932d4ee8138558bf984.exe

"C:\Users\Admin\AppData\Local\Temp\179d7c2a83202cfb86a49b15cf693c7d803afe9582907932d4ee8138558bf984.exe"

C:\Windows\SysWOW64\winver.exe

winver

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 1668 -ip 1668

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1668 -s 640

Network

Country Destination Domain Proto
US 8.8.8.8:53 www.google.com udp
US 8.8.8.8:53 insamertojertoq.cc udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 69.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.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 8.8.8.8:53 107.12.20.2.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 10.28.171.150.in-addr.arpa udp
US 8.8.8.8:53 120.150.79.40.in-addr.arpa udp

Files

memory/3356-0-0x00000000005D0000-0x00000000005D2000-memory.dmp

memory/1668-2-0x0000000000CC0000-0x0000000000CC6000-memory.dmp

memory/3448-1-0x00000000027E0000-0x00000000027E6000-memory.dmp

memory/3448-4-0x00000000027E0000-0x00000000027E6000-memory.dmp

memory/1668-6-0x0000000000CC0000-0x0000000000CC6000-memory.dmp

memory/3448-8-0x00007FFBDBAAD000-0x00007FFBDBAAE000-memory.dmp

memory/1668-7-0x0000000077C22000-0x0000000077C23000-memory.dmp

memory/3356-5-0x0000000002390000-0x0000000002D90000-memory.dmp

memory/1668-9-0x00007FFBDBA10000-0x00007FFBDBC05000-memory.dmp

memory/3448-11-0x00007FFBDBC40000-0x00007FFBDBC41000-memory.dmp

memory/3356-10-0x0000000000400000-0x000000000041D000-memory.dmp

memory/3016-12-0x0000000000F70000-0x0000000000F76000-memory.dmp

memory/3016-13-0x0000000000F70000-0x0000000000F76000-memory.dmp

memory/3448-14-0x00007FFBDBC20000-0x00007FFBDBC21000-memory.dmp

memory/1668-15-0x0000000000CC0000-0x0000000000CC6000-memory.dmp

memory/3016-17-0x00007FFBDBC30000-0x00007FFBDBC31000-memory.dmp

memory/3356-18-0x0000000002390000-0x0000000002D90000-memory.dmp