Malware Analysis Report

2025-01-19 07:37

Sample ID 231219-mvlv2afcbm
Target 0c44befefdfe25a3de871868ee65f222
SHA256 0ee4ba90492e5446d3edac5b42d950d18fde062770d014be7bf11ce762e7cd61
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

0ee4ba90492e5446d3edac5b42d950d18fde062770d014be7bf11ce762e7cd61

Threat Level: Known bad

The file 0c44befefdfe25a3de871868ee65f222 was found to be: Known bad.

Malicious Activity Summary

tinba banker persistence trojan

Tinba / TinyBanker

Adds Run key to start application

Unsigned PE

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-19 10:47

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-19 10:47

Reported

2023-12-19 13:16

Platform

win7-20231215-en

Max time kernel

148s

Max time network

150s

Command Line

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

Signatures

Tinba / TinyBanker

trojan banker tinba

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\40122587 = "C:\\Users\\Admin\\AppData\\Roaming\\40122587\\bin.exe" C:\Windows\SysWOW64\winver.exe N/A

Enumerates physical storage devices

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 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\Dwm.exe

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

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Windows\system32\taskhost.exe

"taskhost.exe"

C:\Users\Admin\AppData\Local\Temp\0c44befefdfe25a3de871868ee65f222.exe

"C:\Users\Admin\AppData\Local\Temp\0c44befefdfe25a3de871868ee65f222.exe"

C:\Windows\SysWOW64\winver.exe

winver

Network

Country Destination Domain Proto
US 8.8.8.8:53 www.google.com udp
US 8.8.8.8:53 ynefefyopqvu.com udp
US 216.218.185.162:80 ynefefyopqvu.com tcp

Files

memory/1684-0-0x00000000025C0000-0x0000000002740000-memory.dmp

memory/1684-1-0x0000000001FA0000-0x0000000001FA1000-memory.dmp

memory/1684-2-0x00000000025C0000-0x0000000002740000-memory.dmp

memory/1244-4-0x0000000002B90000-0x0000000002B97000-memory.dmp

memory/1244-6-0x0000000002B90000-0x0000000002B97000-memory.dmp

memory/2248-8-0x0000000000090000-0x0000000000097000-memory.dmp

memory/1244-9-0x0000000002B90000-0x0000000002B97000-memory.dmp

memory/2248-13-0x000000007772F000-0x0000000077731000-memory.dmp

memory/2248-10-0x0000000077730000-0x0000000077731000-memory.dmp

memory/2248-16-0x00000000000D0000-0x00000000000D1000-memory.dmp

memory/2248-15-0x0000000000520000-0x0000000000536000-memory.dmp

memory/1244-14-0x0000000077581000-0x0000000077582000-memory.dmp

memory/2248-12-0x000000007772F000-0x0000000077730000-memory.dmp

memory/2248-11-0x0000000000090000-0x0000000000097000-memory.dmp

memory/1684-5-0x0000000002CF0000-0x00000000036F0000-memory.dmp

memory/2248-17-0x0000000000190000-0x0000000000191000-memory.dmp

memory/1684-19-0x0000000000400000-0x000000000043F000-memory.dmp

memory/1684-20-0x0000000002CF0000-0x00000000036F0000-memory.dmp

memory/1188-25-0x0000000000130000-0x0000000000137000-memory.dmp

memory/1124-22-0x0000000001C00000-0x0000000001C07000-memory.dmp

memory/1244-28-0x0000000002BA0000-0x0000000002BA7000-memory.dmp

memory/1124-29-0x0000000001C00000-0x0000000001C07000-memory.dmp

memory/1188-31-0x0000000000130000-0x0000000000137000-memory.dmp

memory/1124-30-0x0000000077581000-0x0000000077582000-memory.dmp

memory/1244-32-0x0000000002BA0000-0x0000000002BA7000-memory.dmp

memory/2248-37-0x0000000000090000-0x0000000000097000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-19 10:47

Reported

2023-12-19 13:14

Platform

win10v2004-20231215-en

Max time kernel

6s

Max time network

10s

Command Line

C:\Windows\Explorer.EXE

Signatures

Enumerates physical storage devices

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:\Users\Admin\AppData\Local\Temp\0c44befefdfe25a3de871868ee65f222.exe

"C:\Users\Admin\AppData\Local\Temp\0c44befefdfe25a3de871868ee65f222.exe"

C:\Windows\SysWOW64\winver.exe

winver

Network

Country Destination Domain Proto
US 138.91.171.81:80 tcp
US 8.8.8.8:53 20.177.190.20.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 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 www.google.com udp
US 8.8.8.8:53 ynefefyopqvu.com udp
US 8.8.8.8:53 58.99.105.20.in-addr.arpa udp
US 216.218.185.162:80 ynefefyopqvu.com tcp

Files

memory/4080-1-0x0000000002270000-0x0000000002271000-memory.dmp

memory/4080-0-0x00000000028A0000-0x0000000002A20000-memory.dmp

memory/4080-2-0x00000000028A0000-0x0000000002A20000-memory.dmp

memory/3316-4-0x0000000001170000-0x0000000001177000-memory.dmp

memory/4080-7-0x0000000003390000-0x0000000003D90000-memory.dmp

memory/3316-6-0x0000000001170000-0x0000000001177000-memory.dmp

memory/3204-9-0x0000000077852000-0x0000000077853000-memory.dmp

memory/3204-8-0x0000000002AE0000-0x0000000002AE7000-memory.dmp

memory/3204-5-0x0000000002AE0000-0x0000000002AE7000-memory.dmp

memory/3316-10-0x00007FFBDBE2D000-0x00007FFBDBE2E000-memory.dmp

memory/3204-11-0x0000000002AE0000-0x0000000002AE7000-memory.dmp

memory/3316-12-0x00007FFBDBFC0000-0x00007FFBDBFC1000-memory.dmp

memory/4080-14-0x0000000000400000-0x000000000043F000-memory.dmp

memory/4080-15-0x0000000003390000-0x0000000003D90000-memory.dmp

memory/2404-16-0x0000000000DA0000-0x0000000000DA7000-memory.dmp

memory/2432-17-0x00000000008E0000-0x00000000008E7000-memory.dmp

memory/2432-21-0x00000000008E0000-0x00000000008E7000-memory.dmp

memory/3316-20-0x0000000001180000-0x0000000001187000-memory.dmp

memory/2404-19-0x0000000000DA0000-0x0000000000DA7000-memory.dmp

memory/2500-18-0x0000000000B20000-0x0000000000B27000-memory.dmp

memory/3316-23-0x0000000001180000-0x0000000001187000-memory.dmp

memory/3500-22-0x0000000000300000-0x0000000000307000-memory.dmp

memory/3736-24-0x0000000000AF0000-0x0000000000AF7000-memory.dmp