Malware Analysis Report

2024-10-19 13:24

Sample ID 240817-fm95bs1fpm
Target d72ef93b3140a70c670259d6caf438c0N.exe
SHA256 3b01742f0cef4ceac72788cf4023be4dee735619898b5d407cd91c8eddc4e625
Tags
tinba banker discovery 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

3b01742f0cef4ceac72788cf4023be4dee735619898b5d407cd91c8eddc4e625

Threat Level: Known bad

The file d72ef93b3140a70c670259d6caf438c0N.exe was found to be: Known bad.

Malicious Activity Summary

tinba banker discovery persistence trojan

Tinba / TinyBanker

Adds Run key to start application

Unsigned PE

System Location Discovery: System Language Discovery

Program crash

Suspicious behavior: EnumeratesProcesses

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious use of UnmapMainImage

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-17 05:00

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-17 05:00

Reported

2024-08-17 05:02

Platform

win7-20240708-en

Max time kernel

118s

Max time network

119s

Command Line

"taskhost.exe"

Signatures

Tinba / TinyBanker

trojan banker tinba

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2958949473-3205530200-1453100116-1000\Software\Microsoft\Windows\CurrentVersion\Run\44BED0F3 = "C:\\Users\\Admin\\AppData\\Roaming\\44BED0F3\\bin.exe" C:\Windows\SysWOW64\winver.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\d72ef93b3140a70c670259d6caf438c0N.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 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

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\winver.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:\Windows\system32\DllHost.exe

C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}

C:\Users\Admin\AppData\Local\Temp\d72ef93b3140a70c670259d6caf438c0N.exe

"C:\Users\Admin\AppData\Local\Temp\d72ef93b3140a70c670259d6caf438c0N.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/2692-0-0x0000000000020000-0x0000000000021000-memory.dmp

memory/1228-3-0x00000000021A0000-0x00000000021A6000-memory.dmp

memory/1228-2-0x00000000021A0000-0x00000000021A6000-memory.dmp

memory/1228-1-0x00000000021A0000-0x00000000021A6000-memory.dmp

memory/2692-4-0x0000000001D90000-0x0000000002790000-memory.dmp

memory/1780-5-0x00000000000F0000-0x00000000000F6000-memory.dmp

memory/1780-10-0x0000000077CA0000-0x0000000077E49000-memory.dmp

memory/1228-9-0x0000000077CF1000-0x0000000077CF2000-memory.dmp

memory/1780-8-0x0000000077E9F000-0x0000000077EA1000-memory.dmp

memory/1780-7-0x0000000077E9F000-0x0000000077EA0000-memory.dmp

memory/1780-6-0x0000000077EA0000-0x0000000077EA1000-memory.dmp

memory/2692-11-0x0000000000400000-0x000000000041A000-memory.dmp

memory/2692-12-0x0000000001D90000-0x0000000002790000-memory.dmp

memory/1228-21-0x0000000002150000-0x0000000002156000-memory.dmp

memory/1188-19-0x0000000000140000-0x0000000000146000-memory.dmp

memory/1116-25-0x0000000077CF1000-0x0000000077CF2000-memory.dmp

memory/1780-31-0x00000000000F0000-0x00000000000F6000-memory.dmp

memory/1188-30-0x0000000077CF1000-0x0000000077CF2000-memory.dmp

memory/1188-29-0x0000000000140000-0x0000000000146000-memory.dmp

memory/1684-28-0x0000000077CF1000-0x0000000077CF2000-memory.dmp

memory/1684-27-0x0000000001D90000-0x0000000001D96000-memory.dmp

memory/1228-26-0x0000000002150000-0x0000000002156000-memory.dmp

memory/1116-24-0x0000000001F50000-0x0000000001F56000-memory.dmp

memory/1684-23-0x0000000001D90000-0x0000000001D96000-memory.dmp

memory/1188-32-0x0000000000140000-0x0000000000146000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-17 05:00

Reported

2024-08-17 05:02

Platform

win10v2004-20240802-en

Max time kernel

118s

Max time network

111s

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-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\2229021F = "C:\\Users\\Admin\\AppData\\Roaming\\2229021F\\bin.exe" C:\Windows\SysWOW64\winver.exe N/A

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\winver.exe

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\d72ef93b3140a70c670259d6caf438c0N.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 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 AdjustPrivilegeToken

Description Indicator Process Target
Token: SeShutdownPrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeCreatePagefilePrivilege 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\system32\sihost.exe

sihost.exe

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\d72ef93b3140a70c670259d6caf438c0N.exe

"C:\Users\Admin\AppData\Local\Temp\d72ef93b3140a70c670259d6caf438c0N.exe"

C:\Windows\SysWOW64\winver.exe

winver

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3228 -ip 3228

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3228 -s 356

Network

Country Destination Domain Proto
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 136.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 192.142.123.92.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 22.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp

Files

memory/2436-0-0x0000000000570000-0x0000000000571000-memory.dmp

memory/3412-2-0x0000000000680000-0x0000000000686000-memory.dmp

memory/3412-1-0x0000000000680000-0x0000000000686000-memory.dmp

memory/2436-3-0x0000000002250000-0x0000000002C50000-memory.dmp

memory/3412-5-0x00007FFBA628D000-0x00007FFBA628E000-memory.dmp

memory/3228-4-0x0000000077BE2000-0x0000000077BE3000-memory.dmp

memory/3228-6-0x00007FFBA61F0000-0x00007FFBA63E5000-memory.dmp

memory/3412-7-0x00007FFBA6420000-0x00007FFBA6421000-memory.dmp

memory/2436-8-0x0000000000400000-0x000000000041A000-memory.dmp

memory/2436-9-0x0000000002250000-0x0000000002C50000-memory.dmp

memory/3228-11-0x0000000001360000-0x0000000001366000-memory.dmp

memory/2980-13-0x0000000000120000-0x0000000000126000-memory.dmp

memory/3228-14-0x0000000001360000-0x0000000001366000-memory.dmp

memory/2980-15-0x0000000000120000-0x0000000000126000-memory.dmp

memory/2980-16-0x00007FFBA6410000-0x00007FFBA6411000-memory.dmp