Malware Analysis Report

2024-09-09 17:06

Sample ID 240709-mcgtcs1dnb
Target 3579ba02a5e7d9f2703c34ba84cf58f0N.exe
SHA256 14a8faa807a46ac32af76b059101c5e9fc3b026c5acd2f30faf4711fa0678574
Tags
tinba banker persistence trojan upx
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

14a8faa807a46ac32af76b059101c5e9fc3b026c5acd2f30faf4711fa0678574

Threat Level: Known bad

The file 3579ba02a5e7d9f2703c34ba84cf58f0N.exe was found to be: Known bad.

Malicious Activity Summary

tinba banker persistence trojan upx

Tinba / TinyBanker

UPX packed file

Adds Run key to start application

Program crash

Unsigned PE

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious use of UnmapMainImage

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK Matrix V13

Analysis: static1

Detonation Overview

Reported

2024-07-09 10:19

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

2024-07-09 10:19

Reported

2024-07-09 10:21

Platform

win7-20240704-en

Max time kernel

149s

Max time network

151s

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-1-5-21-3294248377-1418901787-4083263181-1000\Software\Microsoft\Windows\CurrentVersion\Run\4B5E0E90 = "C:\\Users\\Admin\\AppData\\Roaming\\4B5E0E90\\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:\Windows\system32\DllHost.exe

C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}

C:\Users\Admin\AppData\Local\Temp\3579ba02a5e7d9f2703c34ba84cf58f0N.exe

"C:\Users\Admin\AppData\Local\Temp\3579ba02a5e7d9f2703c34ba84cf58f0N.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/756-0-0x0000000000400000-0x000000000041D000-memory.dmp

memory/1192-4-0x00000000025A0000-0x00000000025A6000-memory.dmp

memory/1192-3-0x00000000025A0000-0x00000000025A6000-memory.dmp

memory/1192-2-0x00000000025A0000-0x00000000025A6000-memory.dmp

memory/756-1-0x0000000000020000-0x0000000000021000-memory.dmp

memory/756-5-0x0000000001CF0000-0x00000000026F0000-memory.dmp

memory/316-9-0x000000007754F000-0x0000000077551000-memory.dmp

memory/316-8-0x000000007754F000-0x0000000077550000-memory.dmp

memory/316-11-0x0000000077350000-0x00000000774F9000-memory.dmp

memory/1192-10-0x00000000773A1000-0x00000000773A2000-memory.dmp

memory/316-7-0x0000000077550000-0x0000000077551000-memory.dmp

memory/316-6-0x0000000000120000-0x0000000000126000-memory.dmp

memory/756-12-0x0000000000400000-0x000000000041D000-memory.dmp

memory/756-13-0x0000000001CF0000-0x00000000026F0000-memory.dmp

memory/1568-23-0x0000000001D40000-0x0000000001D46000-memory.dmp

memory/1192-21-0x0000000002550000-0x0000000002556000-memory.dmp

memory/1156-19-0x0000000000230000-0x0000000000236000-memory.dmp

memory/1108-25-0x00000000773A1000-0x00000000773A2000-memory.dmp

memory/1108-24-0x0000000000210000-0x0000000000216000-memory.dmp

memory/1156-26-0x0000000000230000-0x0000000000236000-memory.dmp

memory/1192-27-0x0000000002550000-0x0000000002556000-memory.dmp

memory/1568-29-0x00000000773A1000-0x00000000773A2000-memory.dmp

memory/1568-28-0x0000000001D40000-0x0000000001D46000-memory.dmp

memory/316-34-0x0000000000120000-0x0000000000126000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-09 10:19

Reported

2024-07-09 10:21

Platform

win10v2004-20240704-en

Max time kernel

148s

Max time network

155s

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-1-5-21-771719357-2485960699-3367710044-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\A773BC81 = "C:\\Users\\Admin\\AppData\\Roaming\\A773BC81\\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\3579ba02a5e7d9f2703c34ba84cf58f0N.exe

"C:\Users\Admin\AppData\Local\Temp\3579ba02a5e7d9f2703c34ba84cf58f0N.exe"

C:\Windows\SysWOW64\winver.exe

winver

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2136 -ip 2136

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2136 -s 356

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 13.107.21.237:443 g.bing.com tcp
US 8.8.8.8:53 149.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 237.21.107.13.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 192.142.123.92.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 22.236.111.52.in-addr.arpa udp

Files

memory/5000-0-0x0000000000400000-0x000000000041D000-memory.dmp

memory/5000-1-0x00000000007C0000-0x00000000007C1000-memory.dmp

memory/5000-2-0x0000000002340000-0x0000000002D40000-memory.dmp

memory/3540-3-0x0000000000150000-0x0000000000156000-memory.dmp

memory/3540-7-0x00007FFC72BCD000-0x00007FFC72BCE000-memory.dmp

memory/2136-6-0x0000000000460000-0x0000000000472000-memory.dmp

memory/2136-5-0x0000000000461000-0x0000000000462000-memory.dmp

memory/3540-4-0x0000000000150000-0x0000000000156000-memory.dmp

memory/3540-8-0x00007FFC72D60000-0x00007FFC72D61000-memory.dmp

memory/5000-9-0x0000000000400000-0x000000000041D000-memory.dmp

memory/5000-10-0x0000000002340000-0x0000000002D40000-memory.dmp

memory/2136-12-0x0000000000B40000-0x0000000000B46000-memory.dmp

memory/2488-14-0x00000000002A0000-0x00000000002A6000-memory.dmp

memory/2136-15-0x0000000000B40000-0x0000000000B46000-memory.dmp