Malware Analysis Report

2025-01-19 07:41

Sample ID 241103-2ymdaswhqh
Target 8c0491a22b36bb9ee24fe3e23e33b28322ce739cd6e5cee096966f9b170b64dbN
SHA256 8c0491a22b36bb9ee24fe3e23e33b28322ce739cd6e5cee096966f9b170b64db
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

8c0491a22b36bb9ee24fe3e23e33b28322ce739cd6e5cee096966f9b170b64db

Threat Level: Known bad

The file 8c0491a22b36bb9ee24fe3e23e33b28322ce739cd6e5cee096966f9b170b64dbN was found to be: Known bad.

Malicious Activity Summary

tinba banker discovery persistence trojan

Tinba family

Tinba / TinyBanker

Adds Run key to start application

Program crash

System Location Discovery: System Language Discovery

Unsigned PE

Modifies registry class

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Suspicious behavior: EnumeratesProcesses

Suspicious use of UnmapMainImage

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-03 22:59

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-03 22:59

Reported

2024-11-03 23:01

Platform

win10v2004-20241007-en

Max time kernel

118s

Max time network

109s

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-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\BDA4AC66 = "C:\\Users\\Admin\\AppData\\Roaming\\BDA4AC66\\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\8c0491a22b36bb9ee24fe3e23e33b28322ce739cd6e5cee096966f9b170b64dbN.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

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\8c0491a22b36bb9ee24fe3e23e33b28322ce739cd6e5cee096966f9b170b64dbN.exe

"C:\Users\Admin\AppData\Local\Temp\8c0491a22b36bb9ee24fe3e23e33b28322ce739cd6e5cee096966f9b170b64dbN.exe"

C:\Windows\SysWOW64\winver.exe

winver

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 188 -p 3928 -ip 3928

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3928 -s 352

Network

Country Destination Domain Proto
US 8.8.8.8:53 13.86.106.20.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 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 197.87.175.4.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 142.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 90.160.77.104.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.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 150.171.28.10:443 tse1.mm.bing.net tcp

Files

memory/1012-0-0x0000000000400000-0x000000000041C000-memory.dmp

memory/1012-1-0x0000000002160000-0x0000000002161000-memory.dmp

memory/3464-3-0x0000000000C70000-0x0000000000C76000-memory.dmp

memory/3464-2-0x0000000000C70000-0x0000000000C76000-memory.dmp

memory/3464-6-0x00007FFE0D5ED000-0x00007FFE0D5EE000-memory.dmp

memory/3928-5-0x00000000777B2000-0x00000000777B3000-memory.dmp

memory/1012-4-0x00000000022B0000-0x0000000002CB0000-memory.dmp

memory/3928-7-0x00007FFE0D550000-0x00007FFE0D745000-memory.dmp

memory/3464-8-0x00007FFE0D780000-0x00007FFE0D781000-memory.dmp

memory/1012-10-0x0000000000400000-0x000000000041C000-memory.dmp

memory/1012-11-0x00000000022B0000-0x0000000002CB0000-memory.dmp

memory/3464-12-0x00007FFE0D760000-0x00007FFE0D761000-memory.dmp

memory/3928-14-0x0000000000CA0000-0x0000000000CA6000-memory.dmp

memory/2616-16-0x0000000000380000-0x0000000000386000-memory.dmp

memory/3928-17-0x0000000000CA0000-0x0000000000CA6000-memory.dmp

memory/2616-19-0x00007FFE0D770000-0x00007FFE0D771000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-03 22:59

Reported

2024-11-03 23:01

Platform

win7-20240903-en

Max time kernel

118s

Max time network

120s

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\2C89F562 = "C:\\Users\\Admin\\AppData\\Roaming\\2C89F562\\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\8c0491a22b36bb9ee24fe3e23e33b28322ce739cd6e5cee096966f9b170b64dbN.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
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A

Suspicious use of SendNotifyMessage

Description Indicator Process Target
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.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\8c0491a22b36bb9ee24fe3e23e33b28322ce739cd6e5cee096966f9b170b64dbN.exe

"C:\Users\Admin\AppData\Local\Temp\8c0491a22b36bb9ee24fe3e23e33b28322ce739cd6e5cee096966f9b170b64dbN.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/3056-0-0x0000000000400000-0x000000000041C000-memory.dmp

memory/3056-1-0x0000000000020000-0x0000000000021000-memory.dmp

memory/1200-2-0x00000000025E0000-0x00000000025E6000-memory.dmp

memory/1200-3-0x00000000025E0000-0x00000000025E6000-memory.dmp

memory/1200-4-0x00000000025E0000-0x00000000025E6000-memory.dmp

memory/1200-10-0x0000000077591000-0x0000000077592000-memory.dmp

memory/772-11-0x0000000077540000-0x00000000776E9000-memory.dmp

memory/772-9-0x000000007773F000-0x0000000077741000-memory.dmp

memory/772-8-0x000000007773F000-0x0000000077740000-memory.dmp

memory/772-7-0x0000000077740000-0x0000000077741000-memory.dmp

memory/772-6-0x0000000000160000-0x0000000000166000-memory.dmp

memory/3056-5-0x0000000001CF0000-0x00000000026F0000-memory.dmp

memory/3056-12-0x0000000000400000-0x000000000041C000-memory.dmp

memory/3056-13-0x0000000001CF0000-0x00000000026F0000-memory.dmp

memory/1440-23-0x0000000001FB0000-0x0000000001FB6000-memory.dmp

memory/1160-30-0x0000000077591000-0x0000000077592000-memory.dmp

memory/1160-29-0x0000000001EB0000-0x0000000001EB6000-memory.dmp

memory/1440-28-0x0000000077591000-0x0000000077592000-memory.dmp

memory/1440-27-0x0000000001FB0000-0x0000000001FB6000-memory.dmp

memory/1200-26-0x0000000002580000-0x0000000002586000-memory.dmp

memory/1112-25-0x0000000077591000-0x0000000077592000-memory.dmp

memory/1112-24-0x0000000001F10000-0x0000000001F16000-memory.dmp

memory/1200-21-0x0000000002580000-0x0000000002586000-memory.dmp

memory/1160-19-0x0000000001EB0000-0x0000000001EB6000-memory.dmp

memory/772-31-0x0000000000160000-0x0000000000166000-memory.dmp

memory/1160-35-0x0000000001EB0000-0x0000000001EB6000-memory.dmp