Malware Analysis Report

2025-01-19 07:38

Sample ID 241102-3mjcyayfnq
Target 01412175a3abbe01001a8fabd6699abfca4a64b87fd9a97d59ae9b1842ded20aN
SHA256 01412175a3abbe01001a8fabd6699abfca4a64b87fd9a97d59ae9b1842ded20a
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

01412175a3abbe01001a8fabd6699abfca4a64b87fd9a97d59ae9b1842ded20a

Threat Level: Known bad

The file 01412175a3abbe01001a8fabd6699abfca4a64b87fd9a97d59ae9b1842ded20aN 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

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Suspicious use of UnmapMainImage

Suspicious behavior: EnumeratesProcesses

Suspicious use of FindShellTrayWindow

Modifies data under HKEY_USERS

Suspicious use of SendNotifyMessage

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-02 23:37

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-02 23:37

Reported

2024-11-02 23:41

Platform

win7-20240903-en

Max time kernel

149s

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-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\B3429A6C = "C:\\Users\\Admin\\AppData\\Roaming\\B3429A6C\\bin.exe" C:\Windows\SysWOW64\winver.exe N/A

Enumerates physical storage devices

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\01412175a3abbe01001a8fabd6699abfca4a64b87fd9a97d59ae9b1842ded20aN.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

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2248 wrote to memory of 3044 N/A C:\Users\Admin\AppData\Local\Temp\01412175a3abbe01001a8fabd6699abfca4a64b87fd9a97d59ae9b1842ded20aN.exe C:\Windows\SysWOW64\winver.exe
PID 2248 wrote to memory of 3044 N/A C:\Users\Admin\AppData\Local\Temp\01412175a3abbe01001a8fabd6699abfca4a64b87fd9a97d59ae9b1842ded20aN.exe C:\Windows\SysWOW64\winver.exe
PID 2248 wrote to memory of 3044 N/A C:\Users\Admin\AppData\Local\Temp\01412175a3abbe01001a8fabd6699abfca4a64b87fd9a97d59ae9b1842ded20aN.exe C:\Windows\SysWOW64\winver.exe
PID 2248 wrote to memory of 3044 N/A C:\Users\Admin\AppData\Local\Temp\01412175a3abbe01001a8fabd6699abfca4a64b87fd9a97d59ae9b1842ded20aN.exe C:\Windows\SysWOW64\winver.exe
PID 2248 wrote to memory of 3044 N/A C:\Users\Admin\AppData\Local\Temp\01412175a3abbe01001a8fabd6699abfca4a64b87fd9a97d59ae9b1842ded20aN.exe C:\Windows\SysWOW64\winver.exe
PID 3044 wrote to memory of 1192 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\Explorer.EXE
PID 3044 wrote to memory of 1104 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\system32\taskhost.exe
PID 3044 wrote to memory of 1164 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\system32\Dwm.exe
PID 3044 wrote to memory of 1192 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\Explorer.EXE
PID 3044 wrote to memory of 1228 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\system32\DllHost.exe
PID 3044 wrote to memory of 2248 N/A C:\Windows\SysWOW64\winver.exe C:\Users\Admin\AppData\Local\Temp\01412175a3abbe01001a8fabd6699abfca4a64b87fd9a97d59ae9b1842ded20aN.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\01412175a3abbe01001a8fabd6699abfca4a64b87fd9a97d59ae9b1842ded20aN.exe

"C:\Users\Admin\AppData\Local\Temp\01412175a3abbe01001a8fabd6699abfca4a64b87fd9a97d59ae9b1842ded20aN.exe"

C:\Windows\SysWOW64\winver.exe

winver

Network

Country Destination Domain Proto
US 8.8.8.8:53 elitiorecfreetoo.cc udp
US 216.218.185.162:80 elitiorecfreetoo.cc tcp

Files

memory/3044-4-0x00000000000B0000-0x00000000000B6000-memory.dmp

memory/1192-3-0x0000000002540000-0x0000000002546000-memory.dmp

memory/1192-6-0x0000000002540000-0x0000000002546000-memory.dmp

memory/1192-1-0x0000000002540000-0x0000000002546000-memory.dmp

memory/1164-12-0x0000000001EA0000-0x0000000001EA6000-memory.dmp

memory/1104-9-0x00000000002E0000-0x00000000002E6000-memory.dmp

memory/3044-23-0x00000000001D0000-0x00000000001D6000-memory.dmp

memory/1228-18-0x0000000001EA0000-0x0000000001EA6000-memory.dmp

memory/1192-15-0x0000000002590000-0x0000000002596000-memory.dmp

memory/2248-25-0x0000000000400000-0x000000000043C000-memory.dmp

memory/1228-26-0x0000000001EA0000-0x0000000001EA6000-memory.dmp

memory/1104-28-0x00000000002E0000-0x00000000002E6000-memory.dmp

memory/1164-29-0x0000000001EA0000-0x0000000001EA6000-memory.dmp

memory/1192-27-0x0000000002590000-0x0000000002596000-memory.dmp

memory/3044-31-0x00000000001D0000-0x00000000001D6000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-02 23:37

Reported

2024-11-02 23:40

Platform

win10v2004-20241007-en

Max time kernel

142s

Max time network

150s

Command Line

sihost.exe

Signatures

Enumerates physical storage devices

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\01412175a3abbe01001a8fabd6699abfca4a64b87fd9a97d59ae9b1842ded20aN.exe N/A

Modifies data under HKEY_USERS

Description Indicator Process Target
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@%SystemRoot%\system32\hnetcfgclient.dll,-201 = "HNetCfg Client" C:\Windows\System32\svchost.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

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\01412175a3abbe01001a8fabd6699abfca4a64b87fd9a97d59ae9b1842ded20aN.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\01412175a3abbe01001a8fabd6699abfca4a64b87fd9a97d59ae9b1842ded20aN.exe

"C:\Users\Admin\AppData\Local\Temp\01412175a3abbe01001a8fabd6699abfca4a64b87fd9a97d59ae9b1842ded20aN.exe"

C:\Windows\System32\svchost.exe

C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman

C:\Windows\SysWOW64\winver.exe

winver

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 3488 -ip 3488

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3488 -s 300

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 1708 -ip 1708

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1708 -s 816

Network

Country Destination Domain Proto
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 64.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 241.42.69.40.in-addr.arpa udp
US 8.8.8.8:53 66.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 elitiorecfreetoo.cc udp
US 8.8.8.8:53 104.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 21.236.111.52.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 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp

Files

memory/1708-1-0x0000000004610000-0x0000000004C68000-memory.dmp

memory/1708-2-0x0000000003D90000-0x0000000003D91000-memory.dmp

memory/1708-3-0x0000000004610000-0x0000000004C68000-memory.dmp

memory/3532-5-0x0000000001300000-0x0000000001306000-memory.dmp

memory/3532-6-0x0000000001300000-0x0000000001306000-memory.dmp

memory/1708-7-0x0000000000400000-0x000000000043C000-memory.dmp

memory/3532-11-0x0000000002D80000-0x0000000002D86000-memory.dmp

memory/1708-10-0x0000000005720000-0x0000000006120000-memory.dmp

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

memory/1708-15-0x0000000005720000-0x0000000006120000-memory.dmp

memory/1708-19-0x0000000004610000-0x0000000004C68000-memory.dmp

memory/2688-20-0x0000000000640000-0x0000000000646000-memory.dmp