Malware Analysis Report

2024-09-09 16:55

Sample ID 240614-x76fbaxakp
Target 1ffe67e2537a083a9bad5bc27721808f290502940e089764e09242b53bd7a525
SHA256 1ffe67e2537a083a9bad5bc27721808f290502940e089764e09242b53bd7a525
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

1ffe67e2537a083a9bad5bc27721808f290502940e089764e09242b53bd7a525

Threat Level: Known bad

The file 1ffe67e2537a083a9bad5bc27721808f290502940e089764e09242b53bd7a525 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 behavior: EnumeratesProcesses

Suspicious use of UnmapMainImage

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

Modifies registry class

Suspicious use of AdjustPrivilegeToken

Suspicious use of SendNotifyMessage

MITRE ATT&CK Matrix V13

Analysis: static1

Detonation Overview

Reported

2024-06-14 19:30

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-14 19:30

Reported

2024-06-14 19:33

Platform

win7-20240508-en

Max time kernel

149s

Max time network

149s

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-1-5-21-268080393-3149932598-1824759070-1000\Software\Microsoft\Windows\CurrentVersion\Run\B890D480 = "C:\\Users\\Admin\\AppData\\Roaming\\B890D480\\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\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\1ffe67e2537a083a9bad5bc27721808f290502940e089764e09242b53bd7a525.exe

"C:\Users\Admin\AppData\Local\Temp\1ffe67e2537a083a9bad5bc27721808f290502940e089764e09242b53bd7a525.exe"

C:\Windows\SysWOW64\winver.exe

winver

Network

Country Destination Domain Proto
US 8.8.8.8:53 spaines.pw udp
US 8.8.8.8:53 uyhgqunqkxnx.pw udp
US 8.8.8.8:53 vcklmnnejwxx.pw udp
US 8.8.8.8:53 cmnsgscccrej.pw udp
US 8.8.8.8:53 evbsdqvgmpph.pw udp
US 8.8.8.8:53 mfueeimvyrsp.pw udp
US 8.8.8.8:53 utmyhnffxpcj.pw udp
US 8.8.8.8:53 fkmmvfeonnyh.pw udp
US 8.8.8.8:53 gfnlmtcolrrb.pw udp
US 8.8.8.8:53 wwgfyvvdtmeq.pw udp

Files

memory/1976-0-0x0000000000400000-0x000000000041C000-memory.dmp

memory/1976-1-0x0000000000020000-0x0000000000021000-memory.dmp

memory/1180-3-0x0000000002510000-0x0000000002516000-memory.dmp

memory/1180-4-0x0000000002510000-0x0000000002516000-memory.dmp

memory/1180-2-0x0000000002510000-0x0000000002516000-memory.dmp

memory/1976-5-0x0000000001D40000-0x0000000002740000-memory.dmp

memory/2388-6-0x0000000000160000-0x0000000000166000-memory.dmp

memory/2388-7-0x0000000077640000-0x0000000077641000-memory.dmp

memory/2388-8-0x000000007763F000-0x0000000077640000-memory.dmp

memory/2388-9-0x000000007763F000-0x0000000077641000-memory.dmp

memory/1180-10-0x0000000077491000-0x0000000077492000-memory.dmp

memory/2388-11-0x0000000077440000-0x00000000775E9000-memory.dmp

memory/1976-12-0x0000000000400000-0x000000000041C000-memory.dmp

memory/1976-13-0x0000000001D40000-0x0000000002740000-memory.dmp

memory/1180-22-0x00000000024B0000-0x00000000024B6000-memory.dmp

memory/1088-20-0x0000000001DA0000-0x0000000001DA6000-memory.dmp

memory/1088-24-0x0000000077491000-0x0000000077492000-memory.dmp

memory/1088-23-0x0000000001DA0000-0x0000000001DA6000-memory.dmp

memory/1180-25-0x00000000024B0000-0x00000000024B6000-memory.dmp

memory/1056-26-0x0000000000160000-0x0000000000166000-memory.dmp

memory/2388-30-0x0000000000160000-0x0000000000166000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-14 19:30

Reported

2024-06-14 19:33

Platform

win10v2004-20240508-en

Max time kernel

149s

Max time network

150s

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-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\3261F16D = "C:\\Users\\Admin\\AppData\\Roaming\\3261F16D\\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

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ C:\Windows\Explorer.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
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 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
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

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

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\1ffe67e2537a083a9bad5bc27721808f290502940e089764e09242b53bd7a525.exe

"C:\Users\Admin\AppData\Local\Temp\1ffe67e2537a083a9bad5bc27721808f290502940e089764e09242b53bd7a525.exe"

C:\Windows\SysWOW64\winver.exe

winver

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1268 -ip 1268

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1268 -s 352

Network

Files

memory/4788-0-0x0000000000400000-0x000000000041C000-memory.dmp

memory/4788-1-0x0000000000640000-0x0000000000641000-memory.dmp

memory/3460-3-0x0000000000600000-0x0000000000606000-memory.dmp

memory/3460-2-0x0000000000600000-0x0000000000606000-memory.dmp

memory/4788-4-0x0000000002320000-0x0000000002D20000-memory.dmp

memory/1268-6-0x00007FFFD84D0000-0x00007FFFD86C5000-memory.dmp

memory/3460-5-0x00007FFFD856D000-0x00007FFFD856E000-memory.dmp

memory/3460-7-0x00007FFFD8700000-0x00007FFFD8701000-memory.dmp

memory/4788-8-0x0000000000400000-0x000000000041C000-memory.dmp

memory/4788-9-0x0000000002320000-0x0000000002D20000-memory.dmp

memory/3460-10-0x00007FFFD86E0000-0x00007FFFD86E1000-memory.dmp

memory/1268-12-0x0000000000E10000-0x0000000000E16000-memory.dmp

memory/2516-14-0x0000000000560000-0x0000000000566000-memory.dmp

memory/1268-15-0x0000000000E10000-0x0000000000E16000-memory.dmp