Malware Analysis Report

2025-01-19 07:41

Sample ID 241111-yfjynsvdll
Target 1064d20fc54b536bb7315852177bd379b284e9ab5865ddb7f8305b9fe8f7f116
SHA256 1064d20fc54b536bb7315852177bd379b284e9ab5865ddb7f8305b9fe8f7f116
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

1064d20fc54b536bb7315852177bd379b284e9ab5865ddb7f8305b9fe8f7f116

Threat Level: Known bad

The file 1064d20fc54b536bb7315852177bd379b284e9ab5865ddb7f8305b9fe8f7f116 was found to be: Known bad.

Malicious Activity Summary

tinba banker discovery persistence trojan

Tinba / TinyBanker

Tinba family

Adds Run key to start application

Program crash

Unsigned PE

System Location Discovery: System Language Discovery

Modifies registry class

Suspicious behavior: EnumeratesProcesses

Suspicious use of FindShellTrayWindow

Suspicious use of AdjustPrivilegeToken

Suspicious use of UnmapMainImage

Suspicious use of SendNotifyMessage

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-11 19:43

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-11 19:43

Reported

2024-11-11 19:46

Platform

win7-20240903-en

Max time kernel

149s

Max time network

149s

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-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\9EB7A620 = "C:\\Users\\Admin\\AppData\\Roaming\\9EB7A620\\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\1064d20fc54b536bb7315852177bd379b284e9ab5865ddb7f8305b9fe8f7f116.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
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A

Suspicious use of SendNotifyMessage

Description Indicator Process Target
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.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\1064d20fc54b536bb7315852177bd379b284e9ab5865ddb7f8305b9fe8f7f116.exe

"C:\Users\Admin\AppData\Local\Temp\1064d20fc54b536bb7315852177bd379b284e9ab5865ddb7f8305b9fe8f7f116.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/2448-0-0x0000000000020000-0x0000000000021000-memory.dmp

memory/1208-3-0x0000000002560000-0x0000000002566000-memory.dmp

memory/1208-2-0x0000000002560000-0x0000000002566000-memory.dmp

memory/1208-1-0x0000000002560000-0x0000000002566000-memory.dmp

memory/2448-4-0x0000000001D40000-0x0000000002740000-memory.dmp

memory/2320-10-0x0000000077220000-0x00000000773C9000-memory.dmp

memory/1208-9-0x0000000077271000-0x0000000077272000-memory.dmp

memory/2320-8-0x000000007741F000-0x0000000077421000-memory.dmp

memory/2320-7-0x000000007741F000-0x0000000077420000-memory.dmp

memory/2320-6-0x0000000077420000-0x0000000077421000-memory.dmp

memory/2320-5-0x00000000000B0000-0x00000000000B6000-memory.dmp

memory/2448-11-0x0000000000400000-0x0000000000412000-memory.dmp

memory/2448-12-0x0000000001D40000-0x0000000002740000-memory.dmp

memory/1208-22-0x0000000002510000-0x0000000002516000-memory.dmp

memory/1172-20-0x0000000000130000-0x0000000000136000-memory.dmp

memory/1096-29-0x0000000077271000-0x0000000077272000-memory.dmp

memory/1172-28-0x0000000000130000-0x0000000000136000-memory.dmp

memory/1172-27-0x0000000077271000-0x0000000077272000-memory.dmp

memory/1096-33-0x0000000000350000-0x0000000000356000-memory.dmp

memory/1424-35-0x0000000077271000-0x0000000077272000-memory.dmp

memory/1424-34-0x0000000077271000-0x0000000077272000-memory.dmp

memory/1096-26-0x0000000077271000-0x0000000077272000-memory.dmp

memory/1096-25-0x0000000077271000-0x0000000077272000-memory.dmp

memory/2320-24-0x00000000000B0000-0x00000000000B6000-memory.dmp

memory/1096-23-0x0000000077271000-0x0000000077272000-memory.dmp

memory/1208-37-0x0000000002510000-0x0000000002516000-memory.dmp

memory/1424-39-0x0000000001ED0000-0x0000000001ED6000-memory.dmp

memory/1424-40-0x0000000077271000-0x0000000077272000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-11 19:43

Reported

2024-11-11 19:46

Platform

win10v2004-20241007-en

Max time kernel

134s

Max time network

150s

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-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\BBEEF847 = "C:\\Users\\Admin\\AppData\\Roaming\\BBEEF847\\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\1064d20fc54b536bb7315852177bd379b284e9ab5865ddb7f8305b9fe8f7f116.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\1064d20fc54b536bb7315852177bd379b284e9ab5865ddb7f8305b9fe8f7f116.exe

"C:\Users\Admin\AppData\Local\Temp\1064d20fc54b536bb7315852177bd379b284e9ab5865ddb7f8305b9fe8f7f116.exe"

C:\Windows\SysWOW64\winver.exe

winver

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4336 -ip 4336

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4336 -s 352

Network

Country Destination Domain Proto
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 14.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 53.210.109.20.in-addr.arpa udp
US 8.8.8.8:53 241.42.69.40.in-addr.arpa udp
US 8.8.8.8:53 75.117.19.2.in-addr.arpa udp
US 8.8.8.8:53 68.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp

Files

memory/3556-0-0x00000000005C0000-0x00000000005C1000-memory.dmp

memory/3532-1-0x0000000001300000-0x0000000001306000-memory.dmp

memory/3532-2-0x0000000001300000-0x0000000001306000-memory.dmp

memory/3556-3-0x00000000022F0000-0x0000000002CF0000-memory.dmp

memory/3532-5-0x00007FF89200D000-0x00007FF89200E000-memory.dmp

memory/4336-4-0x0000000077202000-0x0000000077203000-memory.dmp

memory/4336-6-0x00007FF891F70000-0x00007FF892165000-memory.dmp

memory/3532-7-0x00007FF8921A0000-0x00007FF8921A1000-memory.dmp

memory/3556-9-0x00000000022F0000-0x0000000002CF0000-memory.dmp

memory/3556-8-0x0000000000400000-0x0000000000412000-memory.dmp

memory/3532-10-0x00007FF892180000-0x00007FF892181000-memory.dmp

memory/4336-12-0x0000000001120000-0x0000000001126000-memory.dmp

memory/2688-14-0x0000000000640000-0x0000000000646000-memory.dmp

memory/4336-15-0x0000000001120000-0x0000000001126000-memory.dmp