Malware Analysis Report

2025-01-19 07:41

Sample ID 241112-xbj77s1rcl
Target 722b6f56bbcc029044466532a683c0889f53b6c97792eda10c9e2c2581786416.exe
SHA256 722b6f56bbcc029044466532a683c0889f53b6c97792eda10c9e2c2581786416
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

722b6f56bbcc029044466532a683c0889f53b6c97792eda10c9e2c2581786416

Threat Level: Known bad

The file 722b6f56bbcc029044466532a683c0889f53b6c97792eda10c9e2c2581786416.exe was found to be: Known bad.

Malicious Activity Summary

tinba banker discovery persistence trojan

Tinba family

Tinba / TinyBanker

Adds Run key to start application

Enumerates physical storage devices

Unsigned PE

System Location Discovery: System Language Discovery

Program crash

Modifies data under HKEY_USERS

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Suspicious use of FindShellTrayWindow

Suspicious use of UnmapMainImage

Suspicious use of SendNotifyMessage

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-12 18:40

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-12 18:40

Reported

2024-11-12 18:42

Platform

win7-20240903-en

Max time kernel

120s

Max time network

118s

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-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\5C7282FA = "C:\\Users\\Admin\\AppData\\Roaming\\5C7282FA\\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\722b6f56bbcc029044466532a683c0889f53b6c97792eda10c9e2c2581786416.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

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\722b6f56bbcc029044466532a683c0889f53b6c97792eda10c9e2c2581786416.exe

"C:\Users\Admin\AppData\Local\Temp\722b6f56bbcc029044466532a683c0889f53b6c97792eda10c9e2c2581786416.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/1200-6-0x00000000024A0000-0x00000000024A6000-memory.dmp

memory/2832-4-0x0000000000120000-0x0000000000126000-memory.dmp

memory/1200-3-0x00000000024A0000-0x00000000024A6000-memory.dmp

memory/1200-1-0x00000000024A0000-0x00000000024A6000-memory.dmp

memory/2252-8-0x0000000000400000-0x000000000043F000-memory.dmp

memory/2832-23-0x0000000000220000-0x0000000000226000-memory.dmp

memory/636-20-0x0000000001E70000-0x0000000001E76000-memory.dmp

memory/1200-17-0x00000000024B0000-0x00000000024B6000-memory.dmp

memory/1168-14-0x00000000001B0000-0x00000000001B6000-memory.dmp

memory/1104-11-0x0000000000300000-0x0000000000306000-memory.dmp

memory/636-27-0x0000000001E70000-0x0000000001E76000-memory.dmp

memory/1168-26-0x00000000001B0000-0x00000000001B6000-memory.dmp

memory/1200-25-0x00000000024B0000-0x00000000024B6000-memory.dmp

memory/1104-24-0x0000000000300000-0x0000000000306000-memory.dmp

memory/2832-29-0x0000000000220000-0x0000000000226000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-12 18:40

Reported

2024-11-12 18:42

Platform

win10v2004-20241007-en

Max time kernel

118s

Max time network

96s

Command Line

C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc

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:\Users\Admin\AppData\Local\Temp\722b6f56bbcc029044466532a683c0889f53b6c97792eda10c9e2c2581786416.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\winver.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\722b6f56bbcc029044466532a683c0889f53b6c97792eda10c9e2c2581786416.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\svchost.exe

C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\722b6f56bbcc029044466532a683c0889f53b6c97792eda10c9e2c2581786416.exe

"C:\Users\Admin\AppData\Local\Temp\722b6f56bbcc029044466532a683c0889f53b6c97792eda10c9e2c2581786416.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 424 -p 1388 -ip 1388

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1388 -s 300

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3196 -ip 3196

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3196 -s 980

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 74.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 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 28.117.19.2.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp

Files

memory/3196-1-0x0000000004600000-0x0000000004C58000-memory.dmp

memory/3196-2-0x00000000044F0000-0x00000000044F1000-memory.dmp

memory/3196-3-0x0000000004600000-0x0000000004C58000-memory.dmp

memory/3196-4-0x00000000044F0000-0x00000000044F1000-memory.dmp

memory/3196-5-0x00000000044F0000-0x00000000044F1000-memory.dmp

memory/3196-6-0x00000000044F0000-0x00000000044F1000-memory.dmp

memory/3196-7-0x00000000044F0000-0x00000000044F1000-memory.dmp

memory/3460-9-0x0000000001200000-0x0000000001206000-memory.dmp

memory/3460-10-0x0000000001200000-0x0000000001206000-memory.dmp

memory/3196-11-0x0000000000400000-0x000000000043F000-memory.dmp

memory/3460-16-0x0000000001440000-0x0000000001446000-memory.dmp

memory/3196-17-0x0000000005B10000-0x0000000006510000-memory.dmp

memory/2440-18-0x00000000001C0000-0x00000000001C6000-memory.dmp

memory/3196-20-0x0000000005B10000-0x0000000006510000-memory.dmp

memory/3196-23-0x0000000004600000-0x0000000004C58000-memory.dmp

memory/2440-24-0x00000000001C0000-0x00000000001C6000-memory.dmp