Malware Analysis Report

2025-01-19 07:22

Sample ID 231031-1s6pbagd87
Target NEAS.74f0bdb3e02972bc39ef7b2899c19550_JC.exe
SHA256 da8ad29f0274e7a7e3c3369d5be1e05b784d8e755b47bd542f1e3a3952d91a73
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

da8ad29f0274e7a7e3c3369d5be1e05b784d8e755b47bd542f1e3a3952d91a73

Threat Level: Known bad

The file NEAS.74f0bdb3e02972bc39ef7b2899c19550_JC.exe 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

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of FindShellTrayWindow

Suspicious behavior: EnumeratesProcesses

Suspicious use of SendNotifyMessage

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-10-31 21:55

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

2023-10-31 21:55

Reported

2023-10-31 21:58

Platform

win7-20231020-en

Max time kernel

151s

Max time network

153s

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-1-5-21-1154728922-3261336865-3456416385-1000\Software\Microsoft\Windows\CurrentVersion\Run\BB6E62B9 = "C:\\Users\\Admin\\AppData\\Roaming\\BB6E62B9\\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 behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A 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 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\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\NEAS.74f0bdb3e02972bc39ef7b2899c19550_JC.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.74f0bdb3e02972bc39ef7b2899c19550_JC.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/2208-0-0x0000000000400000-0x000000000041D000-memory.dmp

memory/2208-1-0x0000000000020000-0x0000000000021000-memory.dmp

memory/2208-3-0x0000000001DB0000-0x00000000027B0000-memory.dmp

memory/1268-2-0x00000000029B0000-0x00000000029B6000-memory.dmp

memory/2876-7-0x0000000076EAF000-0x0000000076EB1000-memory.dmp

memory/1268-9-0x00000000029B0000-0x00000000029B6000-memory.dmp

memory/1268-10-0x0000000076D01000-0x0000000076D02000-memory.dmp

memory/2876-8-0x0000000076EB0000-0x0000000076EB1000-memory.dmp

memory/2876-6-0x0000000076EAF000-0x0000000076EB0000-memory.dmp

memory/2876-5-0x0000000000090000-0x0000000000096000-memory.dmp

memory/2876-11-0x0000000000C60000-0x0000000000C76000-memory.dmp

memory/1268-4-0x00000000029B0000-0x00000000029B6000-memory.dmp

memory/2208-12-0x0000000000400000-0x000000000041D000-memory.dmp

memory/2208-13-0x0000000001DB0000-0x00000000027B0000-memory.dmp

memory/1268-14-0x0000000076E90000-0x0000000076E91000-memory.dmp

memory/2876-16-0x0000000000090000-0x0000000000096000-memory.dmp

memory/2876-17-0x00000000001C0000-0x00000000001C1000-memory.dmp

memory/1116-21-0x0000000000250000-0x0000000000256000-memory.dmp

memory/1116-22-0x0000000076D01000-0x0000000076D02000-memory.dmp

memory/2876-24-0x0000000000090000-0x0000000000096000-memory.dmp

memory/1172-26-0x00000000019C0000-0x00000000019C6000-memory.dmp

memory/1268-27-0x0000000002630000-0x0000000002636000-memory.dmp

memory/1268-28-0x0000000002630000-0x0000000002636000-memory.dmp

memory/2876-32-0x00000000001D0000-0x00000000001D1000-memory.dmp

memory/1268-33-0x0000000076E70000-0x0000000076E71000-memory.dmp

memory/1268-34-0x000007FEF5350000-0x000007FEF5493000-memory.dmp

memory/1268-35-0x000007FE806E0000-0x000007FE806EA000-memory.dmp

memory/1268-36-0x000007FEF5350000-0x000007FEF5493000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-10-31 21:55

Reported

2023-10-31 21:58

Platform

win10v2004-20231025-en

Max time kernel

7s

Max time network

10s

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-1-5-21-177160434-2093019976-369403398-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\782E447E = "C:\\Users\\Admin\\AppData\\Roaming\\782E447E\\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\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Windows\system32\svchost.exe

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

C:\Windows\system32\sihost.exe

sihost.exe

C:\Users\Admin\AppData\Local\Temp\NEAS.74f0bdb3e02972bc39ef7b2899c19550_JC.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.74f0bdb3e02972bc39ef7b2899c19550_JC.exe"

C:\Windows\SysWOW64\winver.exe

winver

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 72.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 163.252.72.23.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 198.158.197.23.in-addr.arpa udp

Files

memory/4452-0-0x0000000000400000-0x000000000041D000-memory.dmp

memory/4452-1-0x00000000005C0000-0x00000000005C1000-memory.dmp

memory/3228-2-0x0000000001480000-0x0000000001486000-memory.dmp

memory/3228-3-0x0000000001480000-0x0000000001486000-memory.dmp

memory/4452-4-0x0000000002250000-0x0000000002C50000-memory.dmp

memory/4796-5-0x0000000077772000-0x0000000077773000-memory.dmp

memory/4796-7-0x0000000000930000-0x0000000000936000-memory.dmp

memory/3228-6-0x00007FFE514CD000-0x00007FFE514CE000-memory.dmp

memory/4452-8-0x0000000000400000-0x000000000041D000-memory.dmp

memory/4452-9-0x0000000002250000-0x0000000002C50000-memory.dmp

memory/2440-13-0x0000000000560000-0x0000000000566000-memory.dmp

memory/2404-15-0x00000000005F0000-0x00000000005F6000-memory.dmp

memory/3228-16-0x0000000003380000-0x0000000003386000-memory.dmp

memory/2440-19-0x0000000000560000-0x0000000000566000-memory.dmp

memory/2740-17-0x0000000000B80000-0x0000000000B86000-memory.dmp

memory/3404-18-0x00000000006F0000-0x00000000006F6000-memory.dmp