Malware Analysis Report

2025-01-19 07:38

Sample ID 241104-zf45aaxdjp
Target 25f34f74a00d833bf765b510c45dd73381b7479ac7db09565312ec833c1c7328
SHA256 25f34f74a00d833bf765b510c45dd73381b7479ac7db09565312ec833c1c7328
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

25f34f74a00d833bf765b510c45dd73381b7479ac7db09565312ec833c1c7328

Threat Level: Known bad

The file 25f34f74a00d833bf765b510c45dd73381b7479ac7db09565312ec833c1c7328 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

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Suspicious behavior: EnumeratesProcesses

Modifies data under HKEY_USERS

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

Suspicious use of UnmapMainImage

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-04 20:40

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-04 20:40

Reported

2024-11-04 20:43

Platform

win7-20241010-en

Max time kernel

149s

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\8AC53550 = "C:\\Users\\Admin\\AppData\\Roaming\\8AC53550\\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\25f34f74a00d833bf765b510c45dd73381b7479ac7db09565312ec833c1c7328.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

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 2472 wrote to memory of 2684 N/A C:\Users\Admin\AppData\Local\Temp\25f34f74a00d833bf765b510c45dd73381b7479ac7db09565312ec833c1c7328.exe C:\Windows\SysWOW64\winver.exe
PID 2472 wrote to memory of 2684 N/A C:\Users\Admin\AppData\Local\Temp\25f34f74a00d833bf765b510c45dd73381b7479ac7db09565312ec833c1c7328.exe C:\Windows\SysWOW64\winver.exe
PID 2472 wrote to memory of 2684 N/A C:\Users\Admin\AppData\Local\Temp\25f34f74a00d833bf765b510c45dd73381b7479ac7db09565312ec833c1c7328.exe C:\Windows\SysWOW64\winver.exe
PID 2472 wrote to memory of 2684 N/A C:\Users\Admin\AppData\Local\Temp\25f34f74a00d833bf765b510c45dd73381b7479ac7db09565312ec833c1c7328.exe C:\Windows\SysWOW64\winver.exe
PID 2472 wrote to memory of 2684 N/A C:\Users\Admin\AppData\Local\Temp\25f34f74a00d833bf765b510c45dd73381b7479ac7db09565312ec833c1c7328.exe C:\Windows\SysWOW64\winver.exe
PID 2684 wrote to memory of 1204 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\Explorer.EXE
PID 2684 wrote to memory of 1096 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\system32\taskhost.exe
PID 2684 wrote to memory of 1164 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\system32\Dwm.exe
PID 2684 wrote to memory of 1204 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\Explorer.EXE
PID 2684 wrote to memory of 1508 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\system32\DllHost.exe
PID 2684 wrote to memory of 2472 N/A C:\Windows\SysWOW64\winver.exe C:\Users\Admin\AppData\Local\Temp\25f34f74a00d833bf765b510c45dd73381b7479ac7db09565312ec833c1c7328.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\25f34f74a00d833bf765b510c45dd73381b7479ac7db09565312ec833c1c7328.exe

"C:\Users\Admin\AppData\Local\Temp\25f34f74a00d833bf765b510c45dd73381b7479ac7db09565312ec833c1c7328.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/2684-4-0x0000000000090000-0x0000000000096000-memory.dmp

memory/1204-6-0x0000000002220000-0x0000000002226000-memory.dmp

memory/1204-3-0x0000000002220000-0x0000000002226000-memory.dmp

memory/1204-1-0x0000000002220000-0x0000000002226000-memory.dmp

memory/2472-24-0x0000000000400000-0x000000000043C000-memory.dmp

memory/2684-25-0x0000000000230000-0x0000000000236000-memory.dmp

memory/1508-19-0x0000000001F60000-0x0000000001F66000-memory.dmp

memory/1204-16-0x0000000002230000-0x0000000002236000-memory.dmp

memory/1164-13-0x0000000000120000-0x0000000000126000-memory.dmp

memory/1096-10-0x0000000001B40000-0x0000000001B46000-memory.dmp

memory/1508-27-0x0000000001F60000-0x0000000001F66000-memory.dmp

memory/1096-26-0x0000000001B40000-0x0000000001B46000-memory.dmp

memory/1164-28-0x0000000000120000-0x0000000000126000-memory.dmp

memory/1204-29-0x0000000002230000-0x0000000002236000-memory.dmp

memory/2684-31-0x0000000000230000-0x0000000000236000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-04 20:40

Reported

2024-11-04 20:43

Platform

win10v2004-20241007-en

Max time kernel

146s

Max time network

130s

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:\Users\Admin\AppData\Local\Temp\25f34f74a00d833bf765b510c45dd73381b7479ac7db09565312ec833c1c7328.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\25f34f74a00d833bf765b510c45dd73381b7479ac7db09565312ec833c1c7328.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\25f34f74a00d833bf765b510c45dd73381b7479ac7db09565312ec833c1c7328.exe

"C:\Users\Admin\AppData\Local\Temp\25f34f74a00d833bf765b510c45dd73381b7479ac7db09565312ec833c1c7328.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 360 -p 1616 -ip 1616

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1616 -s 300

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4128 -ip 4128

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4128 -s 972

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 178.11.19.2.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 58.99.105.20.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.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 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 100.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.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 81.160.77.104.in-addr.arpa udp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp

Files

memory/4128-1-0x0000000004600000-0x0000000004C58000-memory.dmp

memory/4128-2-0x0000000003DB0000-0x0000000003DB1000-memory.dmp

memory/3392-4-0x0000000001470000-0x0000000001476000-memory.dmp

memory/3392-5-0x0000000001470000-0x0000000001476000-memory.dmp

memory/4128-6-0x0000000000400000-0x000000000043C000-memory.dmp

memory/3392-10-0x0000000003410000-0x0000000003416000-memory.dmp

memory/4128-9-0x0000000005710000-0x0000000006110000-memory.dmp

memory/2316-12-0x0000000000890000-0x0000000000896000-memory.dmp

memory/4128-14-0x0000000005710000-0x0000000006110000-memory.dmp

memory/4128-17-0x0000000004600000-0x0000000004C58000-memory.dmp

memory/2316-18-0x0000000000890000-0x0000000000896000-memory.dmp