Malware Analysis Report

2025-01-19 07:38

Sample ID 241105-yblxgaxhjk
Target 48defed1049429cf6c93c7d81fc80867ca8e03ec7f0efedf0360ff122064909aN
SHA256 48defed1049429cf6c93c7d81fc80867ca8e03ec7f0efedf0360ff122064909a
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

48defed1049429cf6c93c7d81fc80867ca8e03ec7f0efedf0360ff122064909a

Threat Level: Known bad

The file 48defed1049429cf6c93c7d81fc80867ca8e03ec7f0efedf0360ff122064909aN 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 FindShellTrayWindow

Suspicious use of AdjustPrivilegeToken

Suspicious use of UnmapMainImage

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-05 19:36

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-05 19:36

Reported

2024-11-05 19:38

Platform

win7-20241010-en

Max time kernel

119s

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-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Run\3A3E2558 = "C:\\Users\\Admin\\AppData\\Roaming\\3A3E2558\\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\48defed1049429cf6c93c7d81fc80867ca8e03ec7f0efedf0360ff122064909aN.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\48defed1049429cf6c93c7d81fc80867ca8e03ec7f0efedf0360ff122064909aN.exe

"C:\Users\Admin\AppData\Local\Temp\48defed1049429cf6c93c7d81fc80867ca8e03ec7f0efedf0360ff122064909aN.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/2700-0-0x0000000000400000-0x000000000041C000-memory.dmp

memory/2700-1-0x0000000000020000-0x0000000000021000-memory.dmp

memory/1192-3-0x0000000002D90000-0x0000000002D96000-memory.dmp

memory/1192-4-0x0000000002D90000-0x0000000002D96000-memory.dmp

memory/1192-2-0x0000000002D90000-0x0000000002D96000-memory.dmp

memory/2700-5-0x0000000001D80000-0x0000000002780000-memory.dmp

memory/2788-11-0x0000000077210000-0x00000000773B9000-memory.dmp

memory/1192-10-0x0000000077261000-0x0000000077262000-memory.dmp

memory/2788-9-0x000000007740F000-0x0000000077411000-memory.dmp

memory/2788-8-0x000000007740F000-0x0000000077410000-memory.dmp

memory/2788-7-0x0000000077410000-0x0000000077411000-memory.dmp

memory/2788-6-0x00000000000F0000-0x00000000000F6000-memory.dmp

memory/2700-12-0x0000000000400000-0x000000000041C000-memory.dmp

memory/2700-13-0x0000000001D80000-0x0000000002780000-memory.dmp

memory/1160-30-0x0000000001F90000-0x0000000001F96000-memory.dmp

memory/1116-29-0x0000000077261000-0x0000000077262000-memory.dmp

memory/1116-28-0x00000000003A0000-0x00000000003A6000-memory.dmp

memory/1344-27-0x0000000077261000-0x0000000077262000-memory.dmp

memory/1344-26-0x0000000001BA0000-0x0000000001BA6000-memory.dmp

memory/1192-25-0x0000000002D40000-0x0000000002D46000-memory.dmp

memory/1344-24-0x0000000001BA0000-0x0000000001BA6000-memory.dmp

memory/1192-22-0x0000000002D40000-0x0000000002D46000-memory.dmp

memory/1160-20-0x0000000001F90000-0x0000000001F96000-memory.dmp

memory/2788-31-0x00000000000F0000-0x00000000000F6000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-05 19:36

Reported

2024-11-05 19:38

Platform

win10v2004-20241007-en

Max time kernel

118s

Max time network

106s

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\9085B282 = "C:\\Users\\Admin\\AppData\\Roaming\\9085B282\\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\48defed1049429cf6c93c7d81fc80867ca8e03ec7f0efedf0360ff122064909aN.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

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\48defed1049429cf6c93c7d81fc80867ca8e03ec7f0efedf0360ff122064909aN.exe

"C:\Users\Admin\AppData\Local\Temp\48defed1049429cf6c93c7d81fc80867ca8e03ec7f0efedf0360ff122064909aN.exe"

C:\Windows\SysWOW64\winver.exe

winver

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2120 -ip 2120

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2120 -s 356

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 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 66.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 20.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 197.87.175.4.in-addr.arpa udp
US 8.8.8.8:53 241.42.69.40.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 22.236.111.52.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

Files

memory/3404-0-0x0000000000400000-0x000000000041C000-memory.dmp

memory/3404-1-0x0000000002160000-0x0000000002161000-memory.dmp

memory/3520-3-0x0000000001EE0000-0x0000000001EE6000-memory.dmp

memory/3520-2-0x0000000001EE0000-0x0000000001EE6000-memory.dmp

memory/3404-4-0x0000000002270000-0x0000000002C70000-memory.dmp

memory/3520-6-0x00007FF9BE6AD000-0x00007FF9BE6AE000-memory.dmp

memory/2120-5-0x00000000776F2000-0x00000000776F3000-memory.dmp

memory/2120-7-0x00007FF9BE610000-0x00007FF9BE805000-memory.dmp

memory/3520-8-0x00007FF9BE840000-0x00007FF9BE841000-memory.dmp

memory/3404-10-0x0000000000400000-0x000000000041C000-memory.dmp

memory/3404-11-0x0000000002270000-0x0000000002C70000-memory.dmp

memory/2120-13-0x0000000000BC0000-0x0000000000BC6000-memory.dmp

memory/2448-15-0x00000000007A0000-0x00000000007A6000-memory.dmp

memory/2120-16-0x0000000000BC0000-0x0000000000BC6000-memory.dmp

memory/2448-18-0x00007FF9BE830000-0x00007FF9BE831000-memory.dmp