Malware Analysis Report

2025-01-19 07:39

Sample ID 241121-b5qfesslel
Target 4d1d6edfd498bc0395e536a89156a6a635e2854cf1d385d7d188680371fc9c60.exe
SHA256 4d1d6edfd498bc0395e536a89156a6a635e2854cf1d385d7d188680371fc9c60
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

4d1d6edfd498bc0395e536a89156a6a635e2854cf1d385d7d188680371fc9c60

Threat Level: Known bad

The file 4d1d6edfd498bc0395e536a89156a6a635e2854cf1d385d7d188680371fc9c60.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

Program crash

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of FindShellTrayWindow

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-21 01:43

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-21 01:43

Reported

2024-11-21 01:45

Platform

win7-20240903-en

Max time kernel

118s

Max time network

119s

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\750280D5 = "C:\\Users\\Admin\\AppData\\Roaming\\750280D5\\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\4d1d6edfd498bc0395e536a89156a6a635e2854cf1d385d7d188680371fc9c60.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\4d1d6edfd498bc0395e536a89156a6a635e2854cf1d385d7d188680371fc9c60.exe

"C:\Users\Admin\AppData\Local\Temp\4d1d6edfd498bc0395e536a89156a6a635e2854cf1d385d7d188680371fc9c60.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/2644-0-0x0000000000020000-0x0000000000021000-memory.dmp

memory/1160-2-0x0000000002ED0000-0x0000000002ED6000-memory.dmp

memory/1160-3-0x0000000002ED0000-0x0000000002ED6000-memory.dmp

memory/1160-1-0x0000000002ED0000-0x0000000002ED6000-memory.dmp

memory/1160-9-0x0000000077781000-0x0000000077782000-memory.dmp

memory/2784-10-0x0000000077730000-0x00000000778D9000-memory.dmp

memory/2784-8-0x000000007792F000-0x0000000077931000-memory.dmp

memory/2784-7-0x000000007792F000-0x0000000077930000-memory.dmp

memory/2784-6-0x0000000077930000-0x0000000077931000-memory.dmp

memory/2784-5-0x00000000000F0000-0x00000000000F6000-memory.dmp

memory/2644-4-0x0000000001BB0000-0x00000000025B0000-memory.dmp

memory/2644-11-0x0000000000400000-0x0000000000417000-memory.dmp

memory/2644-12-0x0000000001BB0000-0x00000000025B0000-memory.dmp

memory/1032-27-0x0000000077781000-0x0000000077782000-memory.dmp

memory/1096-29-0x0000000001EA0000-0x0000000001EA6000-memory.dmp

memory/1096-28-0x0000000077781000-0x0000000077782000-memory.dmp

memory/1032-26-0x00000000001E0000-0x00000000001E6000-memory.dmp

memory/1032-25-0x0000000077781000-0x0000000077782000-memory.dmp

memory/1032-24-0x0000000077781000-0x0000000077782000-memory.dmp

memory/1508-23-0x0000000001CF0000-0x0000000001CF6000-memory.dmp

memory/1160-21-0x0000000002A80000-0x0000000002A86000-memory.dmp

memory/1096-19-0x0000000001EA0000-0x0000000001EA6000-memory.dmp

memory/1508-30-0x0000000077781000-0x0000000077782000-memory.dmp

memory/1160-31-0x0000000002A80000-0x0000000002A86000-memory.dmp

memory/2784-32-0x00000000000F0000-0x00000000000F6000-memory.dmp

memory/1508-33-0x0000000001CF0000-0x0000000001CF6000-memory.dmp

memory/2784-38-0x0000000000270000-0x0000000000271000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-21 01:43

Reported

2024-11-21 01:45

Platform

win10v2004-20241007-en

Max time kernel

119s

Max time network

94s

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\1E858A3E = "C:\\Users\\Admin\\AppData\\Roaming\\1E858A3E\\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:\Windows\SysWOW64\winver.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\4d1d6edfd498bc0395e536a89156a6a635e2854cf1d385d7d188680371fc9c60.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\4d1d6edfd498bc0395e536a89156a6a635e2854cf1d385d7d188680371fc9c60.exe

"C:\Users\Admin\AppData\Local\Temp\4d1d6edfd498bc0395e536a89156a6a635e2854cf1d385d7d188680371fc9c60.exe"

C:\Windows\SysWOW64\winver.exe

winver

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 176 -p 644 -ip 644

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 644 -s 352

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 23.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 53.210.109.20.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp

Files

memory/3876-0-0x0000000002160000-0x0000000002161000-memory.dmp

memory/3520-2-0x0000000001100000-0x0000000001106000-memory.dmp

memory/3520-1-0x0000000001100000-0x0000000001106000-memory.dmp

memory/3876-3-0x0000000002330000-0x0000000002D30000-memory.dmp

memory/3520-5-0x00007FFDAB9CD000-0x00007FFDAB9CE000-memory.dmp

memory/644-4-0x00000000774D2000-0x00000000774D3000-memory.dmp

memory/644-6-0x00007FFDAB930000-0x00007FFDABB25000-memory.dmp

memory/3876-7-0x0000000000400000-0x0000000000417000-memory.dmp

memory/3876-8-0x0000000002330000-0x0000000002D30000-memory.dmp

memory/644-10-0x0000000001310000-0x0000000001316000-memory.dmp

memory/2596-12-0x0000000000140000-0x0000000000146000-memory.dmp

memory/644-13-0x0000000001310000-0x0000000001316000-memory.dmp