Malware Analysis Report

2025-01-19 07:41

Sample ID 241103-agl8essmak
Target f73965b3f1cab08f41a1911ec410c1a0811550a039eaad62363a926ba0f5692fN
SHA256 f73965b3f1cab08f41a1911ec410c1a0811550a039eaad62363a926ba0f5692f
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

f73965b3f1cab08f41a1911ec410c1a0811550a039eaad62363a926ba0f5692f

Threat Level: Known bad

The file f73965b3f1cab08f41a1911ec410c1a0811550a039eaad62363a926ba0f5692fN 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 behavior: EnumeratesProcesses

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Suspicious use of UnmapMainImage

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-03 00:11

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-03 00:11

Reported

2024-11-03 00:13

Platform

win7-20240903-en

Max time kernel

119s

Max time network

122s

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-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Run\A3CBBB08 = "C:\\Users\\Admin\\AppData\\Roaming\\A3CBBB08\\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\f73965b3f1cab08f41a1911ec410c1a0811550a039eaad62363a926ba0f5692fN.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\f73965b3f1cab08f41a1911ec410c1a0811550a039eaad62363a926ba0f5692fN.exe

"C:\Users\Admin\AppData\Local\Temp\f73965b3f1cab08f41a1911ec410c1a0811550a039eaad62363a926ba0f5692fN.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/2672-0-0x0000000000020000-0x0000000000021000-memory.dmp

memory/1256-1-0x00000000029D0000-0x00000000029D6000-memory.dmp

memory/1256-2-0x00000000029D0000-0x00000000029D6000-memory.dmp

memory/1256-3-0x00000000029D0000-0x00000000029D6000-memory.dmp

memory/2672-4-0x0000000001D80000-0x0000000002780000-memory.dmp

memory/2684-10-0x0000000077A20000-0x0000000077BC9000-memory.dmp

memory/1256-9-0x0000000077A71000-0x0000000077A72000-memory.dmp

memory/2684-8-0x0000000077C1F000-0x0000000077C21000-memory.dmp

memory/2684-7-0x0000000077C1F000-0x0000000077C20000-memory.dmp

memory/2684-6-0x0000000077C20000-0x0000000077C21000-memory.dmp

memory/2684-5-0x0000000000130000-0x0000000000136000-memory.dmp

memory/2672-11-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2672-12-0x0000000001D80000-0x0000000002780000-memory.dmp

memory/860-26-0x0000000001E70000-0x0000000001E76000-memory.dmp

memory/1196-29-0x00000000001B0000-0x00000000001B6000-memory.dmp

memory/1120-28-0x0000000077A71000-0x0000000077A72000-memory.dmp

memory/1120-27-0x0000000001F90000-0x0000000001F96000-memory.dmp

memory/1256-23-0x0000000002070000-0x0000000002076000-memory.dmp

memory/1196-20-0x00000000001B0000-0x00000000001B6000-memory.dmp

memory/860-30-0x0000000001E70000-0x0000000001E76000-memory.dmp

memory/860-31-0x0000000077A71000-0x0000000077A72000-memory.dmp

memory/1256-32-0x0000000002070000-0x0000000002076000-memory.dmp

memory/2684-33-0x0000000000130000-0x0000000000136000-memory.dmp

memory/2684-38-0x00000000001C0000-0x00000000001C1000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-03 00:11

Reported

2024-11-03 00:13

Platform

win10v2004-20241007-en

Max time kernel

118s

Max time network

104s

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-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\F2947D4F = "C:\\Users\\Admin\\AppData\\Roaming\\F2947D4F\\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\f73965b3f1cab08f41a1911ec410c1a0811550a039eaad62363a926ba0f5692fN.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\f73965b3f1cab08f41a1911ec410c1a0811550a039eaad62363a926ba0f5692fN.exe

"C:\Users\Admin\AppData\Local\Temp\f73965b3f1cab08f41a1911ec410c1a0811550a039eaad62363a926ba0f5692fN.exe"

C:\Windows\SysWOW64\winver.exe

winver

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3716 -ip 3716

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3716 -s 352

Network

Country Destination Domain Proto
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 150.171.27.10:443 g.bing.com tcp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 14.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 212.20.149.52.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.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/3256-0-0x0000000000780000-0x0000000000781000-memory.dmp

memory/3520-2-0x0000000000CD0000-0x0000000000CD6000-memory.dmp

memory/3520-1-0x0000000000CD0000-0x0000000000CD6000-memory.dmp

memory/3520-5-0x00007FFF0EE0D000-0x00007FFF0EE0E000-memory.dmp

memory/3716-4-0x0000000076F02000-0x0000000076F03000-memory.dmp

memory/3256-3-0x0000000002220000-0x0000000002C20000-memory.dmp

memory/3716-6-0x00007FFF0ED70000-0x00007FFF0EF65000-memory.dmp

memory/3520-7-0x00007FFF0EFA0000-0x00007FFF0EFA1000-memory.dmp

memory/3256-8-0x0000000000400000-0x0000000000414000-memory.dmp

memory/3256-9-0x0000000002220000-0x0000000002C20000-memory.dmp

memory/3716-11-0x00000000004A0000-0x00000000004A6000-memory.dmp

memory/2652-13-0x0000000000F20000-0x0000000000F26000-memory.dmp

memory/3716-14-0x00000000004A0000-0x00000000004A6000-memory.dmp

memory/2652-16-0x00007FFF0EF90000-0x00007FFF0EF91000-memory.dmp