Malware Analysis Report

2024-09-09 17:08

Sample ID 240705-dqwp1a1fmj
Target d203b81427d1209b41674f0ec62508fa72bae4ddbea362cebf8da1fd3c5e92f5
SHA256 d203b81427d1209b41674f0ec62508fa72bae4ddbea362cebf8da1fd3c5e92f5
Tags
tinba banker persistence trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

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

d203b81427d1209b41674f0ec62508fa72bae4ddbea362cebf8da1fd3c5e92f5

Threat Level: Known bad

The file d203b81427d1209b41674f0ec62508fa72bae4ddbea362cebf8da1fd3c5e92f5 was found to be: Known bad.

Malicious Activity Summary

tinba banker persistence trojan

Tinba / TinyBanker

Adds Run key to start application

Unsigned PE

Program crash

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

MITRE ATT&CK Matrix V13

Analysis: static1

Detonation Overview

Reported

2024-07-05 03:13

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-05 03:13

Reported

2024-07-05 06:35

Platform

win7-20240419-en

Max time kernel

149s

Max time network

149s

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-1-5-21-481678230-3773327859-3495911762-1000\Software\Microsoft\Windows\CurrentVersion\Run\B80ECE86 = "C:\\Users\\Admin\\AppData\\Roaming\\B80ECE86\\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 use of FindShellTrayWindow

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

Processes

C:\Windows\system32\Dwm.exe

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

C:\Windows\system32\taskhost.exe

"taskhost.exe"

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\d203b81427d1209b41674f0ec62508fa72bae4ddbea362cebf8da1fd3c5e92f5.exe

"C:\Users\Admin\AppData\Local\Temp\d203b81427d1209b41674f0ec62508fa72bae4ddbea362cebf8da1fd3c5e92f5.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/2128-0-0x0000000000020000-0x0000000000021000-memory.dmp

memory/1120-3-0x00000000030F0000-0x00000000030F6000-memory.dmp

memory/1120-2-0x00000000030F0000-0x00000000030F6000-memory.dmp

memory/1120-1-0x00000000030F0000-0x00000000030F6000-memory.dmp

memory/2128-4-0x0000000001D70000-0x0000000002770000-memory.dmp

memory/2064-10-0x00000000776C0000-0x0000000077869000-memory.dmp

memory/1120-9-0x0000000077711000-0x0000000077712000-memory.dmp

memory/2064-8-0x00000000778BF000-0x00000000778C1000-memory.dmp

memory/2064-7-0x00000000778BF000-0x00000000778C0000-memory.dmp

memory/2064-6-0x00000000778C0000-0x00000000778C1000-memory.dmp

memory/2064-5-0x0000000000130000-0x0000000000136000-memory.dmp

memory/2128-11-0x0000000000400000-0x000000000041A000-memory.dmp

memory/2128-12-0x0000000001D70000-0x0000000002770000-memory.dmp

memory/1120-21-0x00000000021D0000-0x00000000021D6000-memory.dmp

memory/1064-19-0x0000000000210000-0x0000000000216000-memory.dmp

memory/1040-22-0x0000000001EB0000-0x0000000001EB6000-memory.dmp

memory/1064-25-0x0000000000210000-0x0000000000216000-memory.dmp

memory/1120-24-0x00000000021D0000-0x00000000021D6000-memory.dmp

memory/1040-23-0x0000000077711000-0x0000000077712000-memory.dmp

memory/2064-29-0x0000000000130000-0x0000000000136000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-05 03:13

Reported

2024-07-05 06:35

Platform

win10v2004-20240704-en

Max time kernel

148s

Max time network

152s

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-1-5-21-2494989678-839960665-2515455429-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\6E7746CB = "C:\\Users\\Admin\\AppData\\Roaming\\6E7746CB\\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

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

Processes

C:\Windows\system32\sihost.exe

sihost.exe

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\d203b81427d1209b41674f0ec62508fa72bae4ddbea362cebf8da1fd3c5e92f5.exe

"C:\Users\Admin\AppData\Local\Temp\d203b81427d1209b41674f0ec62508fa72bae4ddbea362cebf8da1fd3c5e92f5.exe"

C:\Windows\SysWOW64\winver.exe

winver

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3296 -ip 3296

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3296 -s 352

Network

Country Destination Domain Proto
US 8.8.8.8:53 73.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 9.173.189.20.in-addr.arpa udp

Files

memory/3316-0-0x0000000000500000-0x0000000000501000-memory.dmp

memory/3520-1-0x00000000010D0000-0x00000000010D6000-memory.dmp

memory/3520-2-0x00000000010D0000-0x00000000010D6000-memory.dmp

memory/3316-3-0x00000000022B0000-0x0000000002CB0000-memory.dmp

memory/3520-5-0x00007FFAB7DED000-0x00007FFAB7DEE000-memory.dmp

memory/3296-4-0x0000000077E42000-0x0000000077E43000-memory.dmp

memory/3296-6-0x00007FFAB7D50000-0x00007FFAB7F45000-memory.dmp

memory/3316-7-0x0000000000400000-0x000000000041A000-memory.dmp

memory/3316-8-0x00000000022B0000-0x0000000002CB0000-memory.dmp

memory/3296-10-0x0000000000830000-0x0000000000836000-memory.dmp

memory/2460-12-0x00000000002C0000-0x00000000002C6000-memory.dmp

memory/3296-13-0x0000000000830000-0x0000000000836000-memory.dmp