Malware Analysis Report

2024-09-09 17:00

Sample ID 240621-3rd9sazepl
Target 85a0e75ad50613ddd9394f5c45886e211d0cd01ef604a433407c34d5bc5b8be0
SHA256 85a0e75ad50613ddd9394f5c45886e211d0cd01ef604a433407c34d5bc5b8be0
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

85a0e75ad50613ddd9394f5c45886e211d0cd01ef604a433407c34d5bc5b8be0

Threat Level: Known bad

The file 85a0e75ad50613ddd9394f5c45886e211d0cd01ef604a433407c34d5bc5b8be0 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

Enumerates physical storage devices

Suspicious use of FindShellTrayWindow

Suspicious use of AdjustPrivilegeToken

Suspicious use of SendNotifyMessage

Modifies data under HKEY_USERS

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK Matrix V13

Analysis: static1

Detonation Overview

Reported

2024-06-21 23:44

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-21 23:44

Reported

2024-06-21 23:47

Platform

win7-20240508-en

Max time kernel

148s

Max time network

150s

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-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Windows\CurrentVersion\Run\FA01134F = "C:\\Users\\Admin\\AppData\\Roaming\\FA01134F\\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

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:\Users\Admin\AppData\Local\Temp\85a0e75ad50613ddd9394f5c45886e211d0cd01ef604a433407c34d5bc5b8be0.exe

"C:\Users\Admin\AppData\Local\Temp\85a0e75ad50613ddd9394f5c45886e211d0cd01ef604a433407c34d5bc5b8be0.exe"

C:\Windows\SysWOW64\winver.exe

winver

Network

Country Destination Domain Proto
US 8.8.8.8:53 elitiorecfreetoo.cc udp
US 8.8.8.8:53 elitiorecfreetoo.cc udp
US 8.8.8.8:53 elitiorecfreetoo.cc udp
US 8.8.8.8:53 elitiorecfreetoo.cc udp
US 8.8.8.8:53 elitiorecfreetoo.cc udp
US 8.8.8.8:53 elitiorecfreetoo.cc udp
US 8.8.8.8:53 elitiorecfreetoo.cc udp
US 8.8.8.8:53 elitiorecfreetoo.cc udp
US 8.8.8.8:53 elitiorecfreetoo.cc udp
US 8.8.8.8:53 elitiorecfreetoo.cc udp

Files

memory/1200-3-0x00000000025E0000-0x00000000025E6000-memory.dmp

memory/1200-1-0x00000000025E0000-0x00000000025E6000-memory.dmp

memory/1200-6-0x00000000025E0000-0x00000000025E6000-memory.dmp

memory/2816-4-0x0000000000160000-0x0000000000166000-memory.dmp

memory/2816-20-0x0000000000210000-0x0000000000216000-memory.dmp

memory/1200-15-0x0000000002E30000-0x0000000002E36000-memory.dmp

memory/1172-12-0x00000000001B0000-0x00000000001B6000-memory.dmp

memory/1108-9-0x00000000020F0000-0x00000000020F6000-memory.dmp

memory/2416-22-0x0000000000400000-0x000000000043C000-memory.dmp

memory/1172-25-0x00000000001B0000-0x00000000001B6000-memory.dmp

memory/1200-24-0x0000000002E30000-0x0000000002E36000-memory.dmp

memory/1108-23-0x00000000020F0000-0x00000000020F6000-memory.dmp

memory/2816-27-0x0000000000210000-0x0000000000216000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-21 23:44

Reported

2024-06-21 23:47

Platform

win10v2004-20240508-en

Max time kernel

145s

Max time network

52s

Command Line

sihost.exe

Signatures

Enumerates physical storage devices

Modifies data under HKEY_USERS

Description Indicator Process Target
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@%SystemRoot%\system32\hnetcfgclient.dll,-201 = "HNetCfg Client" C:\Windows\System32\svchost.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
Token: SeShutdownPrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeCreatePagefilePrivilege 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
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\85a0e75ad50613ddd9394f5c45886e211d0cd01ef604a433407c34d5bc5b8be0.exe

"C:\Users\Admin\AppData\Local\Temp\85a0e75ad50613ddd9394f5c45886e211d0cd01ef604a433407c34d5bc5b8be0.exe"

C:\Windows\System32\svchost.exe

C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman

C:\Windows\SysWOW64\winver.exe

winver

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 1484 -ip 1484

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1484 -s 300

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 4432 -ip 4432

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4432 -s 928

Network

Files

memory/4432-1-0x0000000004660000-0x0000000004CB8000-memory.dmp

memory/4432-2-0x0000000003DD0000-0x0000000003DD1000-memory.dmp

memory/3508-4-0x0000000000770000-0x0000000000776000-memory.dmp

memory/3508-5-0x0000000000770000-0x0000000000776000-memory.dmp

memory/4432-6-0x0000000000400000-0x000000000043C000-memory.dmp

memory/3508-10-0x0000000002610000-0x0000000002616000-memory.dmp

memory/4432-9-0x0000000005B70000-0x0000000006570000-memory.dmp

memory/2696-12-0x0000000000900000-0x0000000000906000-memory.dmp

memory/4432-13-0x0000000005B70000-0x0000000006570000-memory.dmp

memory/4432-17-0x0000000004660000-0x0000000004CB8000-memory.dmp

memory/2696-18-0x0000000000900000-0x0000000000906000-memory.dmp