Malware Analysis Report

2025-01-19 07:34

Sample ID 231103-rwlc4scf3v
Target NEAS.1bd67bd7b60c3b660d9a5ffafbdcd820.exe
SHA256 9c6d8d7a2ac41ebfbe58cfa2a12d6a56af2a654ec6099a8d9f91ea006dfacee0
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

9c6d8d7a2ac41ebfbe58cfa2a12d6a56af2a654ec6099a8d9f91ea006dfacee0

Threat Level: Known bad

The file NEAS.1bd67bd7b60c3b660d9a5ffafbdcd820.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 behavior: GetForegroundWindowSpam

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-11-03 14:32

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-11-03 14:32

Reported

2023-11-03 14:58

Platform

win7-20231025-en

Max time kernel

166s

Max time network

172s

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-1-5-21-1861898231-3446828954-4278112889-1000\Software\Microsoft\Windows\CurrentVersion\Run\C6110A31 = "C:\\Users\\Admin\\AppData\\Roaming\\C6110A31\\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

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.1bd67bd7b60c3b660d9a5ffafbdcd820.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.1bd67bd7b60c3b660d9a5ffafbdcd820.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/2580-0-0x0000000000020000-0x0000000000021000-memory.dmp

memory/2580-2-0x0000000001DC0000-0x00000000027C0000-memory.dmp

memory/1196-3-0x0000000002B50000-0x0000000002B56000-memory.dmp

memory/1196-1-0x0000000002B50000-0x0000000002B56000-memory.dmp

memory/1220-6-0x0000000077DBF000-0x0000000077DC0000-memory.dmp

memory/1196-5-0x0000000002B50000-0x0000000002B56000-memory.dmp

memory/1220-4-0x0000000000100000-0x0000000000106000-memory.dmp

memory/1220-7-0x0000000077DBF000-0x0000000077DC1000-memory.dmp

memory/1196-9-0x0000000077C11000-0x0000000077C12000-memory.dmp

memory/1220-8-0x0000000077DC0000-0x0000000077DC1000-memory.dmp

memory/1220-10-0x0000000000E00000-0x0000000000E16000-memory.dmp

memory/2580-11-0x0000000000400000-0x0000000000417000-memory.dmp

memory/2580-12-0x0000000001DC0000-0x00000000027C0000-memory.dmp

memory/1220-14-0x0000000000100000-0x0000000000106000-memory.dmp

memory/1220-15-0x0000000000140000-0x0000000000141000-memory.dmp

memory/1196-16-0x0000000077DA0000-0x0000000077DA1000-memory.dmp

memory/1196-17-0x0000000077D80000-0x0000000077D81000-memory.dmp

memory/1196-18-0x000007FEF61D0000-0x000007FEF6313000-memory.dmp

memory/1196-20-0x000007FF3CA00000-0x000007FF3CA0A000-memory.dmp

memory/1108-23-0x0000000000210000-0x0000000000216000-memory.dmp

memory/1108-25-0x0000000077C11000-0x0000000077C12000-memory.dmp

memory/1164-24-0x00000000019C0000-0x00000000019C6000-memory.dmp

memory/1164-27-0x00000000019C0000-0x00000000019C6000-memory.dmp

memory/1196-28-0x0000000002B10000-0x0000000002B16000-memory.dmp

memory/1196-29-0x0000000002B10000-0x0000000002B16000-memory.dmp

memory/1220-33-0x0000000000190000-0x0000000000191000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-11-03 14:32

Reported

2023-11-03 14:57

Platform

win10v2004-20231023-en

Max time kernel

33s

Max time network

39s

Command Line

C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}

Signatures

Tinba / TinyBanker

trojan banker tinba

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-984744499-3605095035-265325720-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\34BE66D2 = "C:\\Users\\Admin\\AppData\\Roaming\\34BE66D2\\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\DllHost.exe

C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}

C:\Windows\system32\svchost.exe

C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Windows\system32\taskhostw.exe

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

C:\Windows\system32\sihost.exe

sihost.exe

C:\Windows\system32\svchost.exe

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

C:\Users\Admin\AppData\Local\Temp\NEAS.1bd67bd7b60c3b660d9a5ffafbdcd820.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.1bd67bd7b60c3b660d9a5ffafbdcd820.exe"

C:\Windows\SysWOW64\winver.exe

winver

Network

Country Destination Domain Proto
US 8.8.8.8:53 75.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 59.128.231.4.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp

Files

memory/1228-0-0x0000000002160000-0x0000000002161000-memory.dmp

memory/1228-1-0x0000000002240000-0x0000000002C40000-memory.dmp

memory/1920-3-0x0000000000EC0000-0x0000000000EC6000-memory.dmp

memory/3316-2-0x0000000000830000-0x0000000000836000-memory.dmp

memory/1920-5-0x0000000077A42000-0x0000000077A43000-memory.dmp

memory/3316-6-0x00007FFC04A2D000-0x00007FFC04A2E000-memory.dmp

memory/3316-4-0x0000000000830000-0x0000000000836000-memory.dmp

memory/1228-7-0x0000000000400000-0x0000000000417000-memory.dmp

memory/1228-9-0x0000000002240000-0x0000000002C40000-memory.dmp

memory/1920-11-0x0000000000EC0000-0x0000000000EC6000-memory.dmp

memory/2772-13-0x0000000000010000-0x0000000000016000-memory.dmp

memory/2736-15-0x0000000000EC0000-0x0000000000EC6000-memory.dmp

memory/2856-14-0x00000000006C0000-0x00000000006C6000-memory.dmp

memory/2856-18-0x00000000006C0000-0x00000000006C6000-memory.dmp

memory/3316-17-0x00000000008F0000-0x00000000008F6000-memory.dmp

memory/2772-16-0x0000000000010000-0x0000000000016000-memory.dmp

memory/3316-19-0x00000000008F0000-0x00000000008F6000-memory.dmp

memory/3464-20-0x0000000000F60000-0x0000000000F66000-memory.dmp