Malware Analysis Report

2025-01-19 07:41

Sample ID 241102-zstt3swajp
Target 03f03a4cb613667f7bf34ef004fe1b4fe9b76d7abfd168dc7e6964dc2a059e17N
SHA256 03f03a4cb613667f7bf34ef004fe1b4fe9b76d7abfd168dc7e6964dc2a059e17
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: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

03f03a4cb613667f7bf34ef004fe1b4fe9b76d7abfd168dc7e6964dc2a059e17

Threat Level: Known bad

The file 03f03a4cb613667f7bf34ef004fe1b4fe9b76d7abfd168dc7e6964dc2a059e17N 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

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of UnmapMainImage

Suspicious use of WriteProcessMemory

Modifies registry class

Suspicious behavior: EnumeratesProcesses

Suspicious use of FindShellTrayWindow

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-02 20:59

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-02 20:59

Reported

2024-11-02 21:01

Platform

win10v2004-20241007-en

Max time kernel

118s

Max time network

107s

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-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\34F613AA = "C:\\Users\\Admin\\AppData\\Roaming\\34F613AA\\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:\Users\Admin\AppData\Local\Temp\03f03a4cb613667f7bf34ef004fe1b4fe9b76d7abfd168dc7e6964dc2a059e17N.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
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\03f03a4cb613667f7bf34ef004fe1b4fe9b76d7abfd168dc7e6964dc2a059e17N.exe

"C:\Users\Admin\AppData\Local\Temp\03f03a4cb613667f7bf34ef004fe1b4fe9b76d7abfd168dc7e6964dc2a059e17N.exe"

C:\Windows\SysWOW64\winver.exe

winver

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 332 -ip 332

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 332 -s 352

Network

Country Destination Domain Proto
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 66.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 17.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 212.20.149.52.in-addr.arpa udp
US 8.8.8.8:53 241.42.69.40.in-addr.arpa udp
US 8.8.8.8:53 101.11.19.2.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 73.208.201.84.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.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 8.8.8.8:53 10.28.171.150.in-addr.arpa udp

Files

memory/2736-0-0x00000000004F0000-0x00000000004F1000-memory.dmp

memory/3544-1-0x0000000001150000-0x0000000001156000-memory.dmp

memory/3544-2-0x0000000001150000-0x0000000001156000-memory.dmp

memory/2736-3-0x0000000002260000-0x0000000002C60000-memory.dmp

memory/332-4-0x0000000077E92000-0x0000000077E93000-memory.dmp

memory/3544-5-0x00007FFA7C66D000-0x00007FFA7C66E000-memory.dmp

memory/332-6-0x00007FFA7C5D0000-0x00007FFA7C7C5000-memory.dmp

memory/2736-7-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2736-8-0x0000000002260000-0x0000000002C60000-memory.dmp

memory/3544-9-0x00007FFA7C800000-0x00007FFA7C801000-memory.dmp

memory/3544-10-0x00007FFA7C7E0000-0x00007FFA7C7E1000-memory.dmp

memory/332-12-0x0000000000FF0000-0x0000000000FF6000-memory.dmp

memory/2540-14-0x0000000000E40000-0x0000000000E46000-memory.dmp

memory/332-15-0x0000000000FF0000-0x0000000000FF6000-memory.dmp

memory/2540-17-0x00007FFA7C7F0000-0x00007FFA7C7F1000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-02 20:59

Reported

2024-11-02 21:01

Platform

win7-20240903-en

Max time kernel

119s

Max time network

123s

Command Line

"C:\Windows\system32\Dwm.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-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Run\9857208D = "C:\\Users\\Admin\\AppData\\Roaming\\9857208D\\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:\Windows\SysWOW64\winver.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\03f03a4cb613667f7bf34ef004fe1b4fe9b76d7abfd168dc7e6964dc2a059e17N.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

Processes

C:\Windows\system32\Dwm.exe

"C:\Windows\system32\Dwm.exe"

C:\Windows\system32\taskhost.exe

"taskhost.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\03f03a4cb613667f7bf34ef004fe1b4fe9b76d7abfd168dc7e6964dc2a059e17N.exe

"C:\Users\Admin\AppData\Local\Temp\03f03a4cb613667f7bf34ef004fe1b4fe9b76d7abfd168dc7e6964dc2a059e17N.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/1756-0-0x0000000000020000-0x0000000000021000-memory.dmp

memory/1148-3-0x0000000002FC0000-0x0000000002FC6000-memory.dmp

memory/1148-2-0x0000000002FC0000-0x0000000002FC6000-memory.dmp

memory/1148-1-0x0000000002FC0000-0x0000000002FC6000-memory.dmp

memory/1756-4-0x0000000001E50000-0x0000000002850000-memory.dmp

memory/2052-5-0x00000000001B0000-0x00000000001B6000-memory.dmp

memory/2052-10-0x0000000076E70000-0x0000000077019000-memory.dmp

memory/1148-9-0x0000000076EC1000-0x0000000076EC2000-memory.dmp

memory/2052-8-0x000000007706F000-0x0000000077071000-memory.dmp

memory/2052-7-0x000000007706F000-0x0000000077070000-memory.dmp

memory/2052-6-0x0000000077070000-0x0000000077071000-memory.dmp

memory/1756-11-0x0000000000400000-0x0000000000414000-memory.dmp

memory/1756-12-0x0000000001E50000-0x0000000002850000-memory.dmp

memory/1072-20-0x0000000001F90000-0x0000000001F96000-memory.dmp

memory/2052-25-0x00000000001B0000-0x00000000001B6000-memory.dmp

memory/1072-29-0x0000000001F90000-0x0000000001F96000-memory.dmp

memory/1956-32-0x0000000001ED0000-0x0000000001ED6000-memory.dmp

memory/1956-31-0x0000000076EC1000-0x0000000076EC2000-memory.dmp

memory/1148-30-0x0000000002E80000-0x0000000002E86000-memory.dmp

memory/1052-24-0x0000000076EC1000-0x0000000076EC2000-memory.dmp

memory/1052-23-0x00000000001B0000-0x00000000001B6000-memory.dmp

memory/1148-22-0x0000000002E80000-0x0000000002E86000-memory.dmp

memory/2052-37-0x0000000000200000-0x0000000000201000-memory.dmp