Malware Analysis Report

2025-01-19 07:39

Sample ID 241120-3gt79awje1
Target b4c610f2eeb41b9f8945cf9d88da22a43c8fbcf210ea3b5bd6df3bdb581703a0.exe
SHA256 b4c610f2eeb41b9f8945cf9d88da22a43c8fbcf210ea3b5bd6df3bdb581703a0
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

b4c610f2eeb41b9f8945cf9d88da22a43c8fbcf210ea3b5bd6df3bdb581703a0

Threat Level: Known bad

The file b4c610f2eeb41b9f8945cf9d88da22a43c8fbcf210ea3b5bd6df3bdb581703a0.exe was found to be: Known bad.

Malicious Activity Summary

tinba banker discovery persistence trojan

Tinba / TinyBanker

Tinba family

Adds Run key to start application

System Location Discovery: System Language Discovery

Unsigned PE

Program crash

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-20 23:29

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-20 23:29

Reported

2024-11-20 23:31

Platform

win7-20241023-en

Max time kernel

119s

Max time network

121s

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-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows\CurrentVersion\Run\46343709 = "C:\\Users\\Admin\\AppData\\Roaming\\46343709\\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\b4c610f2eeb41b9f8945cf9d88da22a43c8fbcf210ea3b5bd6df3bdb581703a0.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

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\b4c610f2eeb41b9f8945cf9d88da22a43c8fbcf210ea3b5bd6df3bdb581703a0.exe

"C:\Users\Admin\AppData\Local\Temp\b4c610f2eeb41b9f8945cf9d88da22a43c8fbcf210ea3b5bd6df3bdb581703a0.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/1968-0-0x0000000000020000-0x0000000000021000-memory.dmp

memory/1176-3-0x00000000025F0000-0x00000000025F6000-memory.dmp

memory/1176-2-0x00000000025F0000-0x00000000025F6000-memory.dmp

memory/1176-1-0x00000000025F0000-0x00000000025F6000-memory.dmp

memory/2384-10-0x0000000077CA0000-0x0000000077E49000-memory.dmp

memory/1176-9-0x0000000077CF1000-0x0000000077CF2000-memory.dmp

memory/2384-8-0x0000000077E9F000-0x0000000077EA1000-memory.dmp

memory/2384-7-0x0000000077E9F000-0x0000000077EA0000-memory.dmp

memory/2384-6-0x0000000077EA0000-0x0000000077EA1000-memory.dmp

memory/2384-5-0x0000000000160000-0x0000000000166000-memory.dmp

memory/1968-4-0x0000000001D10000-0x0000000002710000-memory.dmp

memory/1968-11-0x0000000000400000-0x0000000000417000-memory.dmp

memory/1968-12-0x0000000001D10000-0x0000000002710000-memory.dmp

memory/2384-26-0x0000000000160000-0x0000000000166000-memory.dmp

memory/1096-25-0x0000000077CF1000-0x0000000077CF2000-memory.dmp

memory/1176-24-0x00000000025D0000-0x00000000025D6000-memory.dmp

memory/1096-22-0x0000000001EA0000-0x0000000001EA6000-memory.dmp

memory/1040-21-0x0000000077CF1000-0x0000000077CF2000-memory.dmp

memory/1040-20-0x0000000002010000-0x0000000002016000-memory.dmp

memory/1040-17-0x0000000077CF1000-0x0000000077CF2000-memory.dmp

memory/1096-30-0x0000000001EA0000-0x0000000001EA6000-memory.dmp

memory/1796-31-0x0000000077CF1000-0x0000000077CF2000-memory.dmp

memory/1176-32-0x00000000025D0000-0x00000000025D6000-memory.dmp

memory/1796-33-0x0000000001D90000-0x0000000001D96000-memory.dmp

memory/2384-38-0x00000000001F0000-0x00000000001F1000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-20 23:29

Reported

2024-11-20 23:31

Platform

win10v2004-20241007-en

Max time kernel

118s

Max time network

99s

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-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\9441A381 = "C:\\Users\\Admin\\AppData\\Roaming\\9441A381\\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\b4c610f2eeb41b9f8945cf9d88da22a43c8fbcf210ea3b5bd6df3bdb581703a0.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

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

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\winver.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\b4c610f2eeb41b9f8945cf9d88da22a43c8fbcf210ea3b5bd6df3bdb581703a0.exe

"C:\Users\Admin\AppData\Local\Temp\b4c610f2eeb41b9f8945cf9d88da22a43c8fbcf210ea3b5bd6df3bdb581703a0.exe"

C:\Windows\SysWOW64\winver.exe

winver

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4900 -ip 4900

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4900 -s 352

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 73.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp

Files

memory/2876-0-0x00000000005C0000-0x00000000005C1000-memory.dmp

memory/3428-2-0x0000000000AD0000-0x0000000000AD6000-memory.dmp

memory/3428-1-0x0000000000AD0000-0x0000000000AD6000-memory.dmp

memory/2876-3-0x0000000002310000-0x0000000002D10000-memory.dmp

memory/3428-5-0x00007FFA7C9CD000-0x00007FFA7C9CE000-memory.dmp

memory/4900-4-0x00000000777B2000-0x00000000777B3000-memory.dmp

memory/4900-6-0x00007FFA7C930000-0x00007FFA7CB25000-memory.dmp

memory/2876-7-0x0000000000400000-0x0000000000417000-memory.dmp

memory/2876-8-0x0000000002310000-0x0000000002D10000-memory.dmp

memory/4900-10-0x0000000002D60000-0x0000000002D66000-memory.dmp

memory/2620-12-0x00000000001B0000-0x00000000001B6000-memory.dmp

memory/4900-13-0x0000000002D60000-0x0000000002D66000-memory.dmp