Malware Analysis Report

2025-01-19 07:23

Sample ID 231220-r8jp2sgbbq
Target cdcbf0754d9be239e47304fc78284e33
SHA256 d9072f776e0bb06b1039e89981c0e6e1938d5fedd9ed90cb3885c5195f86b636
Tags
tinba banker 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

d9072f776e0bb06b1039e89981c0e6e1938d5fedd9ed90cb3885c5195f86b636

Threat Level: Known bad

The file cdcbf0754d9be239e47304fc78284e33 was found to be: Known bad.

Malicious Activity Summary

tinba banker persistence trojan

Tinba / TinyBanker

Adds Run key to start application

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-20 14:51

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-20 14:51

Reported

2023-12-20 20:36

Platform

win7-20231215-en

Max time kernel

151s

Max time network

150s

Command Line

C:\Windows\Explorer.EXE

Signatures

Tinba / TinyBanker

trojan banker tinba

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\061C4895 = "C:\\Users\\Admin\\AppData\\Roaming\\061C4895\\bin.exe" 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
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe 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\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Windows\system32\Dwm.exe

"C:\Windows\system32\Dwm.exe"

C:\Windows\system32\taskhost.exe

"taskhost.exe"

C:\Users\Admin\AppData\Local\Temp\cdcbf0754d9be239e47304fc78284e33.exe

"C:\Users\Admin\AppData\Local\Temp\cdcbf0754d9be239e47304fc78284e33.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/2408-0-0x0000000000020000-0x0000000000021000-memory.dmp

memory/2408-1-0x0000000001E90000-0x0000000002890000-memory.dmp

memory/1360-3-0x00000000025E0000-0x00000000025E6000-memory.dmp

memory/1360-4-0x00000000025E0000-0x00000000025E6000-memory.dmp

memory/1360-2-0x00000000025E0000-0x00000000025E6000-memory.dmp

memory/2940-9-0x0000000077E3F000-0x0000000077E41000-memory.dmp

memory/2940-8-0x0000000077E3F000-0x0000000077E40000-memory.dmp

memory/2940-7-0x0000000077E40000-0x0000000077E41000-memory.dmp

memory/2940-6-0x0000000000300000-0x0000000000306000-memory.dmp

memory/1360-10-0x0000000077C91000-0x0000000077C92000-memory.dmp

memory/2940-5-0x0000000000870000-0x0000000000886000-memory.dmp

memory/2408-11-0x0000000000400000-0x000000000041A000-memory.dmp

memory/2408-12-0x0000000001E90000-0x0000000002890000-memory.dmp

memory/2940-15-0x0000000000340000-0x0000000000341000-memory.dmp

memory/1320-21-0x0000000000120000-0x0000000000126000-memory.dmp

memory/1360-27-0x0000000002590000-0x0000000002596000-memory.dmp

memory/1320-26-0x0000000000120000-0x0000000000126000-memory.dmp

memory/1216-25-0x0000000077C91000-0x0000000077C92000-memory.dmp

memory/1216-24-0x0000000001D20000-0x0000000001D26000-memory.dmp

memory/1360-23-0x0000000002590000-0x0000000002596000-memory.dmp

memory/2940-31-0x0000000000350000-0x0000000000351000-memory.dmp

memory/2940-32-0x0000000000300000-0x0000000000306000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-20 14:51

Reported

2023-12-20 20:36

Platform

win10v2004-20231215-en

Max time kernel

9s

Max time network

14s

Command Line

C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc

Signatures

Tinba / TinyBanker

trojan banker tinba

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\D4E2D7E5 = "C:\\Users\\Admin\\AppData\\Roaming\\D4E2D7E5\\bin.exe" 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 FindShellTrayWindow

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

Processes

C:\Windows\system32\svchost.exe

C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Windows\system32\sihost.exe

sihost.exe

C:\Users\Admin\AppData\Local\Temp\cdcbf0754d9be239e47304fc78284e33.exe

"C:\Users\Admin\AppData\Local\Temp\cdcbf0754d9be239e47304fc78284e33.exe"

C:\Windows\SysWOW64\winver.exe

winver

Network

Country Destination Domain Proto
US 138.91.171.81:80 tcp
US 8.8.8.8:53 149.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 210.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp

Files

memory/2644-0-0x0000000000500000-0x0000000000501000-memory.dmp

memory/2644-2-0x00000000020A0000-0x0000000002AA0000-memory.dmp

memory/3512-3-0x00000000012D0000-0x00000000012D6000-memory.dmp

memory/3512-6-0x00007FFBBA3ED000-0x00007FFBBA3EE000-memory.dmp

memory/3756-7-0x0000000000B10000-0x0000000000B22000-memory.dmp

memory/3756-5-0x0000000077A22000-0x0000000077A23000-memory.dmp

memory/3756-4-0x00000000008F0000-0x00000000008F6000-memory.dmp

memory/3512-1-0x00000000012D0000-0x00000000012D6000-memory.dmp

memory/2644-8-0x0000000000400000-0x000000000041A000-memory.dmp

memory/2644-9-0x00000000020A0000-0x0000000002AA0000-memory.dmp

memory/2584-13-0x00000000004B0000-0x00000000004B6000-memory.dmp

memory/2796-14-0x0000000000780000-0x0000000000786000-memory.dmp

memory/2536-16-0x00000000007F0000-0x00000000007F6000-memory.dmp

memory/3512-15-0x0000000001350000-0x0000000001356000-memory.dmp