Malware Analysis Report

2024-09-09 17:07

Sample ID 240715-ebecvawfrn
Target 76348c2e3ef9c4db5e2cf947d18337a0N.exe
SHA256 02395a423722e1d4e9d30c0003b004dee46b7572e9972211571835531a4fa212
Tags
upx 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

02395a423722e1d4e9d30c0003b004dee46b7572e9972211571835531a4fa212

Threat Level: Known bad

The file 76348c2e3ef9c4db5e2cf947d18337a0N.exe was found to be: Known bad.

Malicious Activity Summary

upx tinba banker persistence trojan

Tinba / TinyBanker

UPX packed file

Adds Run key to start application

Program crash

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious use of UnmapMainImage

MITRE ATT&CK Matrix V13

Analysis: static1

Detonation Overview

Reported

2024-07-15 03:45

Signatures

UPX packed file

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

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-15 03:45

Reported

2024-07-15 03:47

Platform

win7-20240705-en

Max time kernel

118s

Max time network

118s

Command Line

"taskhost.exe"

Signatures

Tinba / TinyBanker

trojan banker tinba

UPX packed file

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000\Software\Microsoft\Windows\CurrentVersion\Run\FCA41C74 = "C:\\Users\\Admin\\AppData\\Roaming\\FCA41C74\\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

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\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\76348c2e3ef9c4db5e2cf947d18337a0N.exe

"C:\Users\Admin\AppData\Local\Temp\76348c2e3ef9c4db5e2cf947d18337a0N.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/884-0-0x0000000000400000-0x000000000041D000-memory.dmp

memory/884-1-0x0000000000020000-0x0000000000021000-memory.dmp

memory/1176-4-0x0000000002600000-0x0000000002606000-memory.dmp

memory/1176-3-0x0000000002600000-0x0000000002606000-memory.dmp

memory/1176-2-0x0000000002600000-0x0000000002606000-memory.dmp

memory/884-5-0x0000000001E30000-0x0000000002830000-memory.dmp

memory/2112-11-0x00000000770A0000-0x0000000077249000-memory.dmp

memory/1176-10-0x00000000770F1000-0x00000000770F2000-memory.dmp

memory/2112-9-0x000000007729F000-0x00000000772A1000-memory.dmp

memory/2112-8-0x000000007729F000-0x00000000772A0000-memory.dmp

memory/2112-7-0x00000000772A0000-0x00000000772A1000-memory.dmp

memory/2112-6-0x0000000000160000-0x0000000000166000-memory.dmp

memory/884-12-0x0000000000400000-0x000000000041D000-memory.dmp

memory/884-13-0x0000000001E30000-0x0000000002830000-memory.dmp

memory/1152-20-0x0000000000130000-0x0000000000136000-memory.dmp

memory/1176-23-0x0000000002050000-0x0000000002056000-memory.dmp

memory/1560-25-0x0000000001DB0000-0x0000000001DB6000-memory.dmp

memory/1076-27-0x00000000770F1000-0x00000000770F2000-memory.dmp

memory/1076-26-0x0000000000220000-0x0000000000226000-memory.dmp

memory/1152-28-0x0000000000130000-0x0000000000136000-memory.dmp

memory/1176-29-0x0000000002050000-0x0000000002056000-memory.dmp

memory/1560-30-0x0000000001DB0000-0x0000000001DB6000-memory.dmp

memory/1560-31-0x00000000770F1000-0x00000000770F2000-memory.dmp

memory/2112-36-0x0000000000160000-0x0000000000166000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-15 03:45

Reported

2024-07-15 03:47

Platform

win10v2004-20240709-en

Max time kernel

118s

Max time network

94s

Command Line

sihost.exe

Signatures

Tinba / TinyBanker

trojan banker tinba

UPX packed file

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-464762018-485119342-1613148473-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\52F23512 = "C:\\Users\\Admin\\AppData\\Roaming\\52F23512\\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

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\76348c2e3ef9c4db5e2cf947d18337a0N.exe

"C:\Users\Admin\AppData\Local\Temp\76348c2e3ef9c4db5e2cf947d18337a0N.exe"

C:\Windows\SysWOW64\winver.exe

winver

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4480 -ip 4480

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4480 -s 352

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 138.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp

Files

memory/2908-0-0x0000000000400000-0x000000000041D000-memory.dmp

memory/2908-1-0x00000000006C0000-0x00000000006C1000-memory.dmp

memory/3452-3-0x0000000000D60000-0x0000000000D66000-memory.dmp

memory/3452-2-0x0000000000D60000-0x0000000000D66000-memory.dmp

memory/2908-4-0x0000000002340000-0x0000000002D40000-memory.dmp

memory/3452-7-0x00007FFBC9C4C000-0x00007FFBC9C4D000-memory.dmp

memory/3452-6-0x00007FFBC9C4D000-0x00007FFBC9C4E000-memory.dmp

memory/4480-5-0x0000000077712000-0x0000000077713000-memory.dmp

memory/4480-8-0x00007FFBC9BB0000-0x00007FFBC9DA5000-memory.dmp

memory/2908-9-0x0000000000400000-0x000000000041D000-memory.dmp

memory/2908-10-0x0000000002340000-0x0000000002D40000-memory.dmp

memory/4480-12-0x0000000000EE0000-0x0000000000EE6000-memory.dmp

memory/3016-14-0x00000000005D0000-0x00000000005D6000-memory.dmp

memory/4480-15-0x0000000000EE0000-0x0000000000EE6000-memory.dmp

memory/3452-17-0x00007FFBC9DE0000-0x00007FFBC9DE1000-memory.dmp