Malware Analysis Report

2025-01-19 07:13

Sample ID 231219-v5czwagfa9
Target 6b56a7883ca51b5a8f72d68beecfb904
SHA256 4817886dbbb01617d2268b7d72f1c392e074e12cfb017b0997d1e11b3e8471ac
Tags
upx 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

4817886dbbb01617d2268b7d72f1c392e074e12cfb017b0997d1e11b3e8471ac

Threat Level: Known bad

The file 6b56a7883ca51b5a8f72d68beecfb904 was found to be: Known bad.

Malicious Activity Summary

upx tinba banker persistence trojan

Tinba / TinyBanker

UPX packed file

Adds Run key to start application

Unsigned PE

Program crash

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious use of UnmapMainImage

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-19 17:33

Signatures

UPX packed file

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

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-19 17:33

Reported

2023-12-19 22:48

Platform

win7-20231215-en

Max time kernel

151s

Max time network

169s

Command Line

"C:\Users\Admin\AppData\Local\Temp\6b56a7883ca51b5a8f72d68beecfb904.exe"

Signatures

Tinba / TinyBanker

trojan banker tinba

UPX packed file

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000\Software\Microsoft\Windows\CurrentVersion\Run\95C4848D = "C:\\Users\\Admin\\AppData\\Roaming\\95C4848D\\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:\Users\Admin\AppData\Local\Temp\6b56a7883ca51b5a8f72d68beecfb904.exe

"C:\Users\Admin\AppData\Local\Temp\6b56a7883ca51b5a8f72d68beecfb904.exe"

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:\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/2068-0-0x0000000000400000-0x000000000041A000-memory.dmp

memory/2068-1-0x0000000000020000-0x0000000000021000-memory.dmp

memory/2068-3-0x0000000002020000-0x0000000002A20000-memory.dmp

memory/1256-4-0x0000000002C50000-0x0000000002C56000-memory.dmp

memory/2436-5-0x0000000000100000-0x0000000000106000-memory.dmp

memory/1256-2-0x0000000002C50000-0x0000000002C56000-memory.dmp

memory/1256-10-0x0000000077911000-0x0000000077912000-memory.dmp

memory/2436-9-0x0000000077AC0000-0x0000000077AC1000-memory.dmp

memory/2436-7-0x0000000077ABF000-0x0000000077AC0000-memory.dmp

memory/2436-8-0x0000000077ABF000-0x0000000077AC1000-memory.dmp

memory/2436-11-0x0000000000910000-0x0000000000926000-memory.dmp

memory/1256-6-0x0000000002C50000-0x0000000002C56000-memory.dmp

memory/2068-12-0x0000000000400000-0x000000000041A000-memory.dmp

memory/2068-13-0x0000000002020000-0x0000000002A20000-memory.dmp

memory/2436-15-0x0000000000100000-0x0000000000106000-memory.dmp

memory/2436-16-0x0000000000140000-0x0000000000141000-memory.dmp

memory/1200-21-0x0000000000120000-0x0000000000126000-memory.dmp

memory/1128-25-0x0000000077911000-0x0000000077912000-memory.dmp

memory/1128-24-0x0000000000250000-0x0000000000256000-memory.dmp

memory/1256-27-0x0000000002AA0000-0x0000000002AA6000-memory.dmp

memory/1200-26-0x0000000000120000-0x0000000000126000-memory.dmp

memory/1256-23-0x0000000002AA0000-0x0000000002AA6000-memory.dmp

memory/2436-31-0x00000000001A0000-0x00000000001A1000-memory.dmp

memory/2436-32-0x0000000000100000-0x0000000000106000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-19 17:33

Reported

2023-12-19 22:48

Platform

win10v2004-20231215-en

Max time kernel

149s

Max time network

150s

Command Line

C:\Windows\Explorer.EXE

Signatures

Tinba / TinyBanker

trojan banker tinba

UPX packed file

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\99B4DA20 = "C:\\Users\\Admin\\AppData\\Roaming\\99B4DA20\\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

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\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Windows\system32\sihost.exe

sihost.exe

C:\Users\Admin\AppData\Local\Temp\6b56a7883ca51b5a8f72d68beecfb904.exe

"C:\Users\Admin\AppData\Local\Temp\6b56a7883ca51b5a8f72d68beecfb904.exe"

C:\Windows\SysWOW64\winver.exe

winver

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 2004 -ip 2004

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2004 -s 352

Network

Country Destination Domain Proto
GB 23.44.234.16:80 tcp
US 8.8.8.8:53 85.177.190.20.in-addr.arpa udp
US 138.91.171.81:80 tcp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 177.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 178.223.142.52.in-addr.arpa udp
US 8.8.8.8:53 180.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp

Files

memory/4048-0-0x0000000000400000-0x000000000041A000-memory.dmp

memory/4048-1-0x00000000006C0000-0x00000000006C1000-memory.dmp

memory/4048-2-0x00000000026A0000-0x00000000030A0000-memory.dmp

memory/3536-3-0x0000000003010000-0x0000000003016000-memory.dmp

memory/2004-5-0x0000000001290000-0x0000000001296000-memory.dmp

memory/2004-6-0x0000000077542000-0x0000000077543000-memory.dmp

memory/3536-4-0x0000000003010000-0x0000000003016000-memory.dmp

memory/3536-7-0x00007FF96382D000-0x00007FF96382E000-memory.dmp

memory/3536-8-0x00007FF9639C0000-0x00007FF9639C1000-memory.dmp

memory/4048-9-0x0000000000400000-0x000000000041A000-memory.dmp

memory/4048-10-0x00000000026A0000-0x00000000030A0000-memory.dmp

memory/2592-14-0x0000000000660000-0x0000000000666000-memory.dmp

memory/2004-15-0x0000000001290000-0x0000000001296000-memory.dmp