Malware Analysis Report

2025-01-19 07:30

Sample ID 231017-1a675ahc6z
Target NEAS.2d06609f0ab3ba8f91bdab441d4b1560_JC.exe
SHA256 ef8ae4a0a6b77fe7d95ff0289c075a93df84391348746f36a9af0fc5c5745577
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

ef8ae4a0a6b77fe7d95ff0289c075a93df84391348746f36a9af0fc5c5745577

Threat Level: Known bad

The file NEAS.2d06609f0ab3ba8f91bdab441d4b1560_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: EnumeratesProcesses

Suspicious use of FindShellTrayWindow

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of SendNotifyMessage

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-10-17 21:27

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

2023-10-17 21:27

Reported

2023-10-17 21:31

Platform

win7-20230831-en

Max time kernel

151s

Max time network

170s

Command Line

"taskhost.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-1-5-21-686452656-3203474025-4140627569-1000\Software\Microsoft\Windows\CurrentVersion\Run\F4D6ECD9 = "C:\\Users\\Admin\\AppData\\Roaming\\F4D6ECD9\\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\system32\taskhost.exe

"taskhost.exe"

C:\Windows\system32\Dwm.exe

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

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\NEAS.2d06609f0ab3ba8f91bdab441d4b1560_JC.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.2d06609f0ab3ba8f91bdab441d4b1560_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
US 8.8.8.8:53 uyhgqunqkxnx.pw udp
NL 192.42.116.41:80 uyhgqunqkxnx.pw tcp
US 8.8.8.8:53 vcklmnnejwxx.pw udp
US 216.218.185.162:80 vcklmnnejwxx.pw tcp

Files

memory/2132-0-0x0000000000400000-0x000000000041D000-memory.dmp

memory/2132-1-0x0000000000020000-0x0000000000021000-memory.dmp

memory/2132-3-0x0000000001EF0000-0x00000000028F0000-memory.dmp

memory/1272-2-0x0000000002AB0000-0x0000000002AB6000-memory.dmp

memory/1696-4-0x0000000000140000-0x0000000000146000-memory.dmp

memory/1272-6-0x0000000002AB0000-0x0000000002AB6000-memory.dmp

memory/1272-11-0x0000000076E21000-0x0000000076E22000-memory.dmp

memory/1696-10-0x0000000076FD0000-0x0000000076FD1000-memory.dmp

memory/1696-9-0x0000000076FCF000-0x0000000076FD1000-memory.dmp

memory/1696-8-0x0000000076FCF000-0x0000000076FD0000-memory.dmp

memory/1696-7-0x00000000004E0000-0x00000000004F6000-memory.dmp

memory/2132-12-0x0000000000400000-0x000000000041D000-memory.dmp

memory/2132-13-0x0000000001EF0000-0x00000000028F0000-memory.dmp

memory/1696-15-0x0000000000140000-0x0000000000146000-memory.dmp

memory/1696-16-0x0000000000190000-0x0000000000191000-memory.dmp

memory/1272-17-0x0000000076FB0000-0x0000000076FB1000-memory.dmp

memory/1108-22-0x0000000000310000-0x0000000000316000-memory.dmp

memory/1108-23-0x0000000076E21000-0x0000000076E22000-memory.dmp

memory/1696-25-0x0000000000140000-0x0000000000146000-memory.dmp

memory/1216-27-0x0000000001AC0000-0x0000000001AC6000-memory.dmp

memory/1272-28-0x0000000002AC0000-0x0000000002AC6000-memory.dmp

memory/1272-29-0x0000000002AC0000-0x0000000002AC6000-memory.dmp

memory/1696-33-0x0000000000220000-0x0000000000221000-memory.dmp

memory/1272-34-0x0000000076FA0000-0x0000000076FA1000-memory.dmp

memory/1272-35-0x000007FEF5630000-0x000007FEF5773000-memory.dmp

memory/1272-36-0x000007FF20C20000-0x000007FF20C2A000-memory.dmp

memory/1272-37-0x000007FEF5630000-0x000007FEF5773000-memory.dmp

memory/1272-38-0x000007FF20C20000-0x000007FF20C2A000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-10-17 21:27

Reported

2023-10-17 21:31

Platform

win10v2004-20230915-en

Max time kernel

20s

Max time network

25s

Command Line

sihost.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-1-5-21-3027552071-446050021-1254071215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\BADBA9B5 = "C:\\Users\\Admin\\AppData\\Roaming\\BADBA9B5\\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:\Users\Admin\AppData\Local\Temp\NEAS.2d06609f0ab3ba8f91bdab441d4b1560_JC.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.2d06609f0ab3ba8f91bdab441d4b1560_JC.exe"

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\svchost.exe

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

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 8.8.8.8:53 208.194.73.20.in-addr.arpa udp
US 8.8.8.8:53 8.3.197.209.in-addr.arpa udp
US 8.8.8.8:53 14.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 108.211.229.192.in-addr.arpa udp

Files

memory/4652-0-0x0000000000400000-0x000000000041D000-memory.dmp

memory/4652-1-0x0000000000580000-0x0000000000581000-memory.dmp

memory/3168-2-0x0000000000C30000-0x0000000000C36000-memory.dmp

memory/4652-4-0x00000000022A0000-0x0000000002CA0000-memory.dmp

memory/3168-3-0x0000000000C30000-0x0000000000C36000-memory.dmp

memory/3400-5-0x0000000077042000-0x0000000077043000-memory.dmp

memory/3168-6-0x00007FFABCF8D000-0x00007FFABCF8E000-memory.dmp

memory/3400-7-0x0000000000F90000-0x0000000000F96000-memory.dmp

memory/3168-8-0x00007FFABD120000-0x00007FFABD121000-memory.dmp

memory/4652-9-0x0000000000400000-0x000000000041D000-memory.dmp

memory/4652-10-0x00000000022A0000-0x0000000002CA0000-memory.dmp

memory/2928-15-0x0000000000C90000-0x0000000000C96000-memory.dmp

memory/2900-14-0x0000000000B70000-0x0000000000B76000-memory.dmp

memory/2928-17-0x0000000000C90000-0x0000000000C96000-memory.dmp

memory/3004-16-0x0000000000F80000-0x0000000000F86000-memory.dmp

memory/3004-19-0x0000000000F80000-0x0000000000F86000-memory.dmp

memory/3524-22-0x0000000000D30000-0x0000000000D36000-memory.dmp

memory/3168-21-0x00000000029F0000-0x00000000029F6000-memory.dmp