Malware Analysis Report

2025-01-19 07:31

Sample ID 231016-wzef7add5w
Target NEAS.5419f5b3d979348fc46eb5ab2f481fa0.exe
SHA256 9fa38e28d723a422103dcf6c4855c1585c2c9ca2ae10abb37c2e04943627d527
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

9fa38e28d723a422103dcf6c4855c1585c2c9ca2ae10abb37c2e04943627d527

Threat Level: Known bad

The file NEAS.5419f5b3d979348fc46eb5ab2f481fa0.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 use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of FindShellTrayWindow

Suspicious use of UnmapMainImage

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-10-16 18:21

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-10-16 18:21

Reported

2023-10-16 21:05

Platform

win7-20230831-en

Max time kernel

150s

Max time network

176s

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-1-5-21-3849525425-30183055-657688904-1000\Software\Microsoft\Windows\CurrentVersion\Run\804EEF16 = "C:\\Users\\Admin\\AppData\\Roaming\\804EEF16\\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

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\Dwm.exe

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

C:\Users\Admin\AppData\Local\Temp\NEAS.5419f5b3d979348fc46eb5ab2f481fa0.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.5419f5b3d979348fc46eb5ab2f481fa0.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/2700-0-0x0000000000020000-0x0000000000021000-memory.dmp

memory/2700-1-0x0000000001C70000-0x0000000002670000-memory.dmp

memory/1644-5-0x0000000000090000-0x0000000000096000-memory.dmp

memory/1216-4-0x0000000002A80000-0x0000000002A86000-memory.dmp

memory/1644-3-0x00000000002B0000-0x00000000002C6000-memory.dmp

memory/1216-2-0x0000000002A80000-0x0000000002A86000-memory.dmp

memory/1644-7-0x00000000777DF000-0x00000000777E0000-memory.dmp

memory/1216-6-0x0000000002A80000-0x0000000002A86000-memory.dmp

memory/1644-8-0x00000000777DF000-0x00000000777E1000-memory.dmp

memory/1644-9-0x00000000777E0000-0x00000000777E1000-memory.dmp

memory/1216-10-0x0000000077631000-0x0000000077632000-memory.dmp

memory/2700-11-0x0000000000400000-0x0000000000417000-memory.dmp

memory/2700-12-0x0000000001C70000-0x0000000002670000-memory.dmp

memory/1216-13-0x00000000777C0000-0x00000000777C1000-memory.dmp

memory/1644-16-0x0000000000180000-0x0000000000181000-memory.dmp

memory/1644-15-0x0000000000090000-0x0000000000096000-memory.dmp

memory/1108-20-0x0000000000320000-0x0000000000326000-memory.dmp

memory/1108-22-0x0000000077631000-0x0000000077632000-memory.dmp

memory/1176-21-0x00000000001B0000-0x00000000001B6000-memory.dmp

memory/1216-25-0x0000000002A90000-0x0000000002A96000-memory.dmp

memory/1176-24-0x00000000001B0000-0x00000000001B6000-memory.dmp

memory/1216-26-0x0000000002A90000-0x0000000002A96000-memory.dmp

memory/1644-30-0x0000000000190000-0x0000000000191000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-10-16 18:21

Reported

2023-10-16 21:05

Platform

win10v2004-20230915-en

Max time kernel

9s

Max time network

46s

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-1-5-21-3027552071-446050021-1254071215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\C829CD41 = "C:\\Users\\Admin\\AppData\\Roaming\\C829CD41\\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\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.5419f5b3d979348fc46eb5ab2f481fa0.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.5419f5b3d979348fc46eb5ab2f481fa0.exe"

C:\Windows\SysWOW64\winver.exe

winver

Network

Country Destination Domain Proto
US 8.8.8.8:53 2.136.104.51.in-addr.arpa udp
US 8.8.8.8:53 8.3.197.209.in-addr.arpa udp
US 8.8.8.8:53 138.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 108.211.229.192.in-addr.arpa udp

Files

memory/4128-0-0x0000000002020000-0x0000000002021000-memory.dmp

memory/772-1-0x0000000000F00000-0x0000000000F06000-memory.dmp

memory/4128-3-0x0000000002050000-0x0000000002A50000-memory.dmp

memory/772-2-0x0000000000F00000-0x0000000000F06000-memory.dmp

memory/4856-4-0x0000000000500000-0x0000000000506000-memory.dmp

memory/4856-5-0x0000000077B32000-0x0000000077B33000-memory.dmp

memory/772-6-0x00007FFE6426D000-0x00007FFE6426E000-memory.dmp

memory/4856-7-0x0000000000050000-0x0000000000062000-memory.dmp

memory/4128-8-0x0000000000400000-0x0000000000417000-memory.dmp

memory/4128-9-0x0000000002050000-0x0000000002A50000-memory.dmp

memory/2628-15-0x0000000000FD0000-0x0000000000FD6000-memory.dmp

memory/2448-16-0x00000000002E0000-0x00000000002E6000-memory.dmp

memory/3304-18-0x0000000000490000-0x0000000000496000-memory.dmp

memory/772-17-0x00000000031D0000-0x00000000031D6000-memory.dmp

memory/2440-14-0x00000000003E0000-0x00000000003E6000-memory.dmp

memory/772-19-0x00000000031D0000-0x00000000031D6000-memory.dmp

memory/3524-20-0x0000000000C10000-0x0000000000C16000-memory.dmp