Malware Analysis Report

2025-01-19 07:30

Sample ID 231022-r19w9sbf44
Target NEAS.9be510542391dfd892992c927d2a1120_JC.exe
SHA256 581e2d741412469c87ebcfbfb60f65892fd824b95f976a9ee6a628d66e46ee59
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

581e2d741412469c87ebcfbfb60f65892fd824b95f976a9ee6a628d66e46ee59

Threat Level: Known bad

The file NEAS.9be510542391dfd892992c927d2a1120_JC.exe 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 UnmapMainImage

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of SendNotifyMessage

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-10-22 14:40

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-10-22 14:40

Reported

2023-10-22 14:43

Platform

win7-20231020-en

Max time kernel

161s

Max time network

179s

Command Line

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

Signatures

Tinba / TinyBanker

trojan banker tinba

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2084844033-2744876406-2053742436-1000\Software\Microsoft\Windows\CurrentVersion\Run\D805B97D = "C:\\Users\\Admin\\AppData\\Roaming\\D805B97D\\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

Suspicious use of UnmapMainImage

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

Processes

C:\Windows\system32\Dwm.exe

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

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Windows\system32\taskhost.exe

"taskhost.exe"

C:\Users\Admin\AppData\Local\Temp\NEAS.9be510542391dfd892992c927d2a1120_JC.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.9be510542391dfd892992c927d2a1120_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/2308-0-0x0000000000020000-0x0000000000021000-memory.dmp

memory/2308-2-0x0000000001BC0000-0x00000000025C0000-memory.dmp

memory/1204-1-0x0000000002B50000-0x0000000002B56000-memory.dmp

memory/2660-3-0x0000000000310000-0x0000000000316000-memory.dmp

memory/1204-5-0x0000000002B50000-0x0000000002B56000-memory.dmp

memory/2660-6-0x00000000003C0000-0x00000000003D6000-memory.dmp

memory/1204-10-0x0000000076FF1000-0x0000000076FF2000-memory.dmp

memory/2660-9-0x00000000771A0000-0x00000000771A1000-memory.dmp

memory/2660-8-0x000000007719F000-0x00000000771A1000-memory.dmp

memory/2660-7-0x000000007719F000-0x00000000771A0000-memory.dmp

memory/2308-11-0x0000000000400000-0x0000000000417000-memory.dmp

memory/2308-12-0x0000000001BC0000-0x00000000025C0000-memory.dmp

memory/2660-14-0x0000000000310000-0x0000000000316000-memory.dmp

memory/2660-15-0x0000000000680000-0x0000000000681000-memory.dmp

memory/1116-19-0x0000000001CC0000-0x0000000001CC6000-memory.dmp

memory/1116-21-0x0000000076FF1000-0x0000000076FF2000-memory.dmp

memory/2660-23-0x0000000000310000-0x0000000000316000-memory.dmp

memory/1172-27-0x0000000001D30000-0x0000000001D36000-memory.dmp

memory/1204-26-0x0000000002B60000-0x0000000002B66000-memory.dmp

memory/1204-28-0x0000000002B60000-0x0000000002B66000-memory.dmp

memory/1204-29-0x0000000077180000-0x0000000077181000-memory.dmp

memory/2660-33-0x0000000000690000-0x0000000000691000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-10-22 14:40

Reported

2023-10-22 14:43

Platform

win10v2004-20231020-en

Max time kernel

8s

Max time network

10s

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-1-5-21-1873812795-1433807462-1429862679-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\363EF24E = "C:\\Users\\Admin\\AppData\\Roaming\\363EF24E\\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\taskhostw.exe

taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}

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.9be510542391dfd892992c927d2a1120_JC.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.9be510542391dfd892992c927d2a1120_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 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 198.1.85.104.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp

Files

memory/3608-0-0x0000000002170000-0x0000000002171000-memory.dmp

memory/3608-1-0x0000000002190000-0x0000000002B90000-memory.dmp

memory/3356-2-0x00000000012A0000-0x00000000012A6000-memory.dmp

memory/920-3-0x00000000012E0000-0x00000000012E6000-memory.dmp

memory/3356-4-0x00000000012A0000-0x00000000012A6000-memory.dmp

memory/920-5-0x0000000077D32000-0x0000000077D33000-memory.dmp

memory/3356-6-0x00007FF97430D000-0x00007FF97430E000-memory.dmp

memory/3608-7-0x0000000000400000-0x0000000000417000-memory.dmp

memory/3608-8-0x0000000002190000-0x0000000002B90000-memory.dmp

memory/920-10-0x00000000012E0000-0x00000000012E6000-memory.dmp

memory/2480-12-0x00000000004B0000-0x00000000004B6000-memory.dmp

memory/2448-14-0x00000000006F0000-0x00000000006F6000-memory.dmp

memory/3356-15-0x0000000001240000-0x0000000001246000-memory.dmp

memory/2480-16-0x00000000004B0000-0x00000000004B6000-memory.dmp

memory/3356-18-0x0000000001240000-0x0000000001246000-memory.dmp

memory/3492-17-0x0000000000030000-0x0000000000036000-memory.dmp

memory/2660-13-0x0000000000EF0000-0x0000000000EF6000-memory.dmp