Malware Analysis Report

2025-01-19 07:37

Sample ID 231104-r78b1sdh36
Target NEAS.75cc6d4852ba42a112cb80fd74297350.exe
SHA256 dbf3991cf9f511aa4abb9f37ae4031548b03a0a1cfba24126b0484f5a0395f3d
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

dbf3991cf9f511aa4abb9f37ae4031548b03a0a1cfba24126b0484f5a0395f3d

Threat Level: Known bad

The file NEAS.75cc6d4852ba42a112cb80fd74297350.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 FindShellTrayWindow

Suspicious use of SendNotifyMessage

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: GetForegroundWindowSpam

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-11-04 14:51

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-11-04 14:51

Reported

2023-11-04 14:53

Platform

win7-20231023-en

Max time kernel

150s

Max time network

152s

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-1-5-21-3618187007-3650799920-3290345941-1000\Software\Microsoft\Windows\CurrentVersion\Run\D91E2CB0 = "C:\\Users\\Admin\\AppData\\Roaming\\D91E2CB0\\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.75cc6d4852ba42a112cb80fd74297350.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.75cc6d4852ba42a112cb80fd74297350.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/1708-0-0x0000000000020000-0x0000000000021000-memory.dmp

memory/2972-4-0x0000000000100000-0x0000000000106000-memory.dmp

memory/1204-3-0x0000000001DA0000-0x0000000001DA6000-memory.dmp

memory/1708-2-0x0000000001E30000-0x0000000002830000-memory.dmp

memory/1204-1-0x0000000001DA0000-0x0000000001DA6000-memory.dmp

memory/1204-5-0x0000000001DA0000-0x0000000001DA6000-memory.dmp

memory/2972-6-0x000000007701F000-0x0000000077021000-memory.dmp

memory/2972-8-0x000000007701F000-0x0000000077020000-memory.dmp

memory/2972-7-0x0000000077020000-0x0000000077021000-memory.dmp

memory/1204-9-0x0000000076E71000-0x0000000076E72000-memory.dmp

memory/2972-10-0x0000000000F20000-0x0000000000F36000-memory.dmp

memory/1708-11-0x0000000000400000-0x0000000000417000-memory.dmp

memory/1708-12-0x0000000001E30000-0x0000000002830000-memory.dmp

memory/2972-14-0x0000000000100000-0x0000000000106000-memory.dmp

memory/2972-15-0x00000000001C0000-0x00000000001C1000-memory.dmp

memory/1100-22-0x0000000000390000-0x0000000000396000-memory.dmp

memory/1172-21-0x00000000001A0000-0x00000000001A6000-memory.dmp

memory/1100-23-0x0000000076E71000-0x0000000076E72000-memory.dmp

memory/1204-27-0x0000000077000000-0x0000000077001000-memory.dmp

memory/1204-26-0x0000000001D80000-0x0000000001D86000-memory.dmp

memory/1172-25-0x0000000076E71000-0x0000000076E72000-memory.dmp

memory/1172-28-0x00000000001A0000-0x00000000001A6000-memory.dmp

memory/1204-29-0x0000000001D80000-0x0000000001D86000-memory.dmp

memory/2972-33-0x00000000001D0000-0x00000000001D1000-memory.dmp

memory/1204-34-0x0000000076FE0000-0x0000000076FE1000-memory.dmp

memory/1204-35-0x000007FEF64F0000-0x000007FEF6633000-memory.dmp

memory/1204-36-0x000007FF00560000-0x000007FF0056A000-memory.dmp

memory/1204-37-0x000007FEF64F0000-0x000007FEF6633000-memory.dmp

memory/1204-38-0x000007FF00560000-0x000007FF0056A000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-11-04 14:51

Reported

2023-11-04 14:53

Platform

win10v2004-20231025-en

Max time kernel

7s

Max time network

11s

Command Line

sihost.exe

Signatures

Tinba / TinyBanker

trojan banker tinba

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-177160434-2093019976-369403398-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\A3C6AAE7 = "C:\\Users\\Admin\\AppData\\Roaming\\A3C6AAE7\\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\sihost.exe

sihost.exe

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:\Users\Admin\AppData\Local\Temp\NEAS.75cc6d4852ba42a112cb80fd74297350.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.75cc6d4852ba42a112cb80fd74297350.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 20.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 126.179.238.8.in-addr.arpa udp
US 8.8.8.8:53 59.128.231.4.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 58.99.105.20.in-addr.arpa udp

Files

memory/4504-0-0x0000000002160000-0x0000000002161000-memory.dmp

memory/3292-1-0x0000000001200000-0x0000000001206000-memory.dmp

memory/3292-2-0x0000000001200000-0x0000000001206000-memory.dmp

memory/4504-3-0x0000000002330000-0x0000000002D30000-memory.dmp

memory/1904-4-0x00000000774B2000-0x00000000774B3000-memory.dmp

memory/3292-5-0x00007FF984DED000-0x00007FF984DEE000-memory.dmp

memory/1904-6-0x0000000000960000-0x0000000000966000-memory.dmp

memory/4504-7-0x0000000000400000-0x0000000000417000-memory.dmp

memory/4504-8-0x0000000002330000-0x0000000002D30000-memory.dmp

memory/2880-12-0x0000000000600000-0x0000000000606000-memory.dmp

memory/2776-14-0x00000000002E0000-0x00000000002E6000-memory.dmp

memory/2928-13-0x0000000000510000-0x0000000000516000-memory.dmp

memory/2880-16-0x0000000000600000-0x0000000000606000-memory.dmp

memory/3292-15-0x0000000001240000-0x0000000001246000-memory.dmp

memory/3660-20-0x0000000000F20000-0x0000000000F26000-memory.dmp