Malware Analysis Report

2024-09-09 17:07

Sample ID 240718-1vw8naycmn
Target 13aab620b47d7d30919edba4d9d782c0N.exe
SHA256 4e5560369967b280f50aebbb240dbd36ed8a51d65af8e9cf3e20449b41794cc3
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

4e5560369967b280f50aebbb240dbd36ed8a51d65af8e9cf3e20449b41794cc3

Threat Level: Known bad

The file 13aab620b47d7d30919edba4d9d782c0N.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 use of AdjustPrivilegeToken

Suspicious use of UnmapMainImage

Suspicious behavior: EnumeratesProcesses

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

MITRE ATT&CK Matrix V13

Analysis: static1

Detonation Overview

Reported

2024-07-18 21:58

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

2024-07-18 21:58

Reported

2024-07-18 22:00

Platform

win7-20240704-en

Max time kernel

119s

Max time network

119s

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-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Windows\CurrentVersion\Run\296F1248 = "C:\\Users\\Admin\\AppData\\Roaming\\296F1248\\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

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\13aab620b47d7d30919edba4d9d782c0N.exe

"C:\Users\Admin\AppData\Local\Temp\13aab620b47d7d30919edba4d9d782c0N.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/1580-0-0x0000000000400000-0x000000000041D000-memory.dmp

memory/1580-1-0x0000000000020000-0x0000000000021000-memory.dmp

memory/1200-4-0x0000000002540000-0x0000000002546000-memory.dmp

memory/1200-3-0x0000000002540000-0x0000000002546000-memory.dmp

memory/1200-2-0x0000000002540000-0x0000000002546000-memory.dmp

memory/1580-5-0x0000000001CE0000-0x00000000026E0000-memory.dmp

memory/2968-11-0x0000000077820000-0x00000000779C9000-memory.dmp

memory/1200-10-0x0000000077871000-0x0000000077872000-memory.dmp

memory/2968-9-0x0000000077A1F000-0x0000000077A21000-memory.dmp

memory/2968-8-0x0000000077A1F000-0x0000000077A20000-memory.dmp

memory/2968-7-0x0000000077A20000-0x0000000077A21000-memory.dmp

memory/2968-6-0x0000000000170000-0x0000000000176000-memory.dmp

memory/1580-12-0x0000000000400000-0x000000000041D000-memory.dmp

memory/2032-24-0x0000000001C50000-0x0000000001C56000-memory.dmp

memory/1200-22-0x00000000024F0000-0x00000000024F6000-memory.dmp

memory/1136-20-0x0000000000130000-0x0000000000136000-memory.dmp

memory/1076-25-0x0000000002070000-0x0000000002076000-memory.dmp

memory/1076-26-0x0000000077871000-0x0000000077872000-memory.dmp

memory/1136-27-0x0000000000130000-0x0000000000136000-memory.dmp

memory/1200-28-0x00000000024F0000-0x00000000024F6000-memory.dmp

memory/2032-30-0x0000000077871000-0x0000000077872000-memory.dmp

memory/2032-29-0x0000000001C50000-0x0000000001C56000-memory.dmp

memory/2968-35-0x0000000000170000-0x0000000000176000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-18 21:58

Reported

2024-07-18 22:00

Platform

win10v2004-20240709-en

Max time kernel

118s

Max time network

104s

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-1-5-21-2650514177-1034912467-4025611726-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\29104D8E = "C:\\Users\\Admin\\AppData\\Roaming\\29104D8E\\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\13aab620b47d7d30919edba4d9d782c0N.exe

"C:\Users\Admin\AppData\Local\Temp\13aab620b47d7d30919edba4d9d782c0N.exe"

C:\Windows\SysWOW64\winver.exe

winver

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2680 -ip 2680

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2680 -s 356

Network

Country Destination Domain Proto
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 25.140.123.92.in-addr.arpa udp
US 8.8.8.8:53 140.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 10.28.171.150.in-addr.arpa udp

Files

memory/1004-0-0x0000000000400000-0x000000000041D000-memory.dmp

memory/1004-1-0x00000000004A0000-0x00000000004A1000-memory.dmp

memory/3532-2-0x0000000002550000-0x0000000002556000-memory.dmp

memory/3532-3-0x0000000002550000-0x0000000002556000-memory.dmp

memory/1004-4-0x0000000002330000-0x0000000002D30000-memory.dmp

memory/3532-8-0x00007FF9DD94C000-0x00007FF9DD94D000-memory.dmp

memory/3532-7-0x00007FF9DD94D000-0x00007FF9DD94E000-memory.dmp

memory/2680-6-0x0000000077012000-0x0000000077013000-memory.dmp

memory/2680-5-0x00000000029D0000-0x00000000029D6000-memory.dmp

memory/2680-9-0x00007FF9DD8B0000-0x00007FF9DDAA5000-memory.dmp

memory/1004-10-0x0000000000400000-0x000000000041D000-memory.dmp

memory/1004-11-0x0000000002330000-0x0000000002D30000-memory.dmp

memory/2644-15-0x00000000009B0000-0x00000000009B6000-memory.dmp

memory/2680-16-0x00000000029D0000-0x00000000029D6000-memory.dmp

memory/3532-18-0x00007FF9DDAE0000-0x00007FF9DDAE1000-memory.dmp

memory/2644-19-0x00007FF9DDAD0000-0x00007FF9DDAD1000-memory.dmp