Malware Analysis Report

2025-01-19 07:30

Sample ID 231022-v4yvysba4s
Target NEAS.f6a0638945b214750870e072ce6b29c0.exe
SHA256 1b1c332286047fc0a65ec8d590a7adb8f352d12f40fb4b92cc05ae7231947999
Tags
tinba banker persistence trojan upx
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

1b1c332286047fc0a65ec8d590a7adb8f352d12f40fb4b92cc05ae7231947999

Threat Level: Known bad

The file NEAS.f6a0638945b214750870e072ce6b29c0.exe was found to be: Known bad.

Malicious Activity Summary

tinba banker persistence trojan upx

Tinba / TinyBanker

UPX packed file

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

2023-10-22 17:33

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

2023-10-22 17:33

Reported

2023-10-23 00:51

Platform

win7-20231020-en

Max time kernel

151s

Max time network

153s

Command Line

C:\Windows\Explorer.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-1-5-21-274829-3448035668-3231875956-1000\Software\Microsoft\Windows\CurrentVersion\Run\839E5621 = "C:\\Users\\Admin\\AppData\\Roaming\\839E5621\\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.f6a0638945b214750870e072ce6b29c0.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.f6a0638945b214750870e072ce6b29c0.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/2092-0-0x0000000000400000-0x000000000041D000-memory.dmp

memory/2092-1-0x0000000000020000-0x0000000000021000-memory.dmp

memory/2092-3-0x0000000001CF0000-0x00000000026F0000-memory.dmp

memory/1292-2-0x0000000002AF0000-0x0000000002AF6000-memory.dmp

memory/3004-4-0x0000000000100000-0x0000000000106000-memory.dmp

memory/3004-9-0x00000000771BF000-0x00000000771C1000-memory.dmp

memory/1292-11-0x0000000077011000-0x0000000077012000-memory.dmp

memory/3004-10-0x00000000771C0000-0x00000000771C1000-memory.dmp

memory/3004-8-0x00000000771BF000-0x00000000771C0000-memory.dmp

memory/3004-7-0x00000000003B0000-0x00000000003C6000-memory.dmp

memory/1292-6-0x0000000002AF0000-0x0000000002AF6000-memory.dmp

memory/2092-12-0x0000000000400000-0x000000000041D000-memory.dmp

memory/2092-13-0x0000000001CF0000-0x00000000026F0000-memory.dmp

memory/1292-14-0x00000000771A0000-0x00000000771A1000-memory.dmp

memory/3004-16-0x0000000000100000-0x0000000000106000-memory.dmp

memory/3004-17-0x0000000000180000-0x0000000000181000-memory.dmp

memory/1188-23-0x00000000001A0000-0x00000000001A6000-memory.dmp

memory/1292-25-0x00000000039D0000-0x00000000039D6000-memory.dmp

memory/1188-26-0x00000000001A0000-0x00000000001A6000-memory.dmp

memory/1188-27-0x0000000077011000-0x0000000077012000-memory.dmp

memory/1124-28-0x00000000002D0000-0x00000000002D6000-memory.dmp

memory/1292-29-0x00000000039D0000-0x00000000039D6000-memory.dmp

memory/3004-33-0x0000000000190000-0x0000000000191000-memory.dmp

memory/1292-34-0x0000000077190000-0x0000000077191000-memory.dmp

memory/1292-36-0x000007FEF9E00000-0x000007FEF9E0A000-memory.dmp

memory/1292-35-0x000007FEF55D0000-0x000007FEF5713000-memory.dmp

memory/1292-37-0x000007FEF55D0000-0x000007FEF5713000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-10-22 17:33

Reported

2023-10-23 00:52

Platform

win10v2004-20231020-en

Max time kernel

7s

Max time network

10s

Command Line

C:\Windows\Explorer.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-1-5-21-3811856890-180006922-3689258494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\90BCFC53 = "C:\\Users\\Admin\\AppData\\Roaming\\90BCFC53\\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.f6a0638945b214750870e072ce6b29c0.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.f6a0638945b214750870e072ce6b29c0.exe"

C:\Windows\SysWOW64\winver.exe

winver

Network

Country Destination Domain Proto
US 8.8.8.8:53 74.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 254.178.238.8.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.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

Files

memory/4980-0-0x0000000000400000-0x000000000041D000-memory.dmp

memory/4980-1-0x0000000002160000-0x0000000002161000-memory.dmp

memory/3124-2-0x0000000001490000-0x0000000001496000-memory.dmp

memory/3124-3-0x0000000001490000-0x0000000001496000-memory.dmp

memory/4980-4-0x0000000002210000-0x0000000002C10000-memory.dmp

memory/3124-5-0x00007FF91E80D000-0x00007FF91E80E000-memory.dmp

memory/1120-6-0x0000000077812000-0x0000000077813000-memory.dmp

memory/1120-7-0x0000000002710000-0x0000000002716000-memory.dmp

memory/4980-8-0x0000000000400000-0x000000000041D000-memory.dmp

memory/4980-9-0x0000000002210000-0x0000000002C10000-memory.dmp

memory/3124-10-0x00007FF91E9A0000-0x00007FF91E9A1000-memory.dmp

memory/2332-14-0x00000000001C0000-0x00000000001C6000-memory.dmp

memory/2324-16-0x0000000000B00000-0x0000000000B06000-memory.dmp

memory/2552-15-0x0000000000B20000-0x0000000000B26000-memory.dmp

memory/3124-20-0x0000000001430000-0x0000000001436000-memory.dmp

memory/2332-18-0x00000000001C0000-0x00000000001C6000-memory.dmp