Malware Analysis Report

2024-09-09 17:08

Sample ID 240717-3z7laswaqp
Target 3269b681ee1b6f8e489ab1725edfc810N.exe
SHA256 1222699a8e4b76b05652a522b62fa37f47d9b4662b3e4e1e3cf7b01e93d92376
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

1222699a8e4b76b05652a522b62fa37f47d9b4662b3e4e1e3cf7b01e93d92376

Threat Level: Known bad

The file 3269b681ee1b6f8e489ab1725edfc810N.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 WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of FindShellTrayWindow

Suspicious use of AdjustPrivilegeToken

Suspicious use of UnmapMainImage

MITRE ATT&CK Matrix V13

Analysis: static1

Detonation Overview

Reported

2024-07-17 23:58

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

2024-07-17 23:58

Reported

2024-07-18 00:00

Platform

win7-20240704-en

Max time kernel

118s

Max time network

124s

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\A2D33379 = "C:\\Users\\Admin\\AppData\\Roaming\\A2D33379\\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\3269b681ee1b6f8e489ab1725edfc810N.exe

"C:\Users\Admin\AppData\Local\Temp\3269b681ee1b6f8e489ab1725edfc810N.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/2312-0-0x0000000000400000-0x000000000041D000-memory.dmp

memory/1244-4-0x00000000029C0000-0x00000000029C6000-memory.dmp

memory/1244-3-0x00000000029C0000-0x00000000029C6000-memory.dmp

memory/1244-2-0x00000000029C0000-0x00000000029C6000-memory.dmp

memory/2312-1-0x0000000000020000-0x0000000000021000-memory.dmp

memory/2312-5-0x0000000001CE0000-0x00000000026E0000-memory.dmp

memory/2804-9-0x0000000077D4F000-0x0000000077D51000-memory.dmp

memory/1244-10-0x0000000077BA1000-0x0000000077BA2000-memory.dmp

memory/2804-11-0x0000000077B50000-0x0000000077CF9000-memory.dmp

memory/2804-8-0x0000000077D4F000-0x0000000077D50000-memory.dmp

memory/2804-7-0x0000000077D50000-0x0000000077D51000-memory.dmp

memory/2804-6-0x0000000000160000-0x0000000000166000-memory.dmp

memory/2312-12-0x0000000000400000-0x000000000041D000-memory.dmp

memory/1244-22-0x00000000021A0000-0x00000000021A6000-memory.dmp

memory/1212-20-0x0000000000330000-0x0000000000336000-memory.dmp

memory/660-24-0x0000000001CB0000-0x0000000001CB6000-memory.dmp

memory/1112-25-0x0000000001E90000-0x0000000001E96000-memory.dmp

memory/1212-30-0x0000000000330000-0x0000000000336000-memory.dmp

memory/660-29-0x0000000077BA1000-0x0000000077BA2000-memory.dmp

memory/660-28-0x0000000001CB0000-0x0000000001CB6000-memory.dmp

memory/1244-27-0x00000000021A0000-0x00000000021A6000-memory.dmp

memory/1112-26-0x0000000077BA1000-0x0000000077BA2000-memory.dmp

memory/2804-35-0x0000000000160000-0x0000000000166000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-17 23:58

Reported

2024-07-18 00:00

Platform

win10v2004-20240709-en

Max time kernel

119s

Max time network

120s

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-1-5-21-1705699165-553239100-4129523827-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\6BF3AF52 = "C:\\Users\\Admin\\AppData\\Roaming\\6BF3AF52\\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\3269b681ee1b6f8e489ab1725edfc810N.exe

"C:\Users\Admin\AppData\Local\Temp\3269b681ee1b6f8e489ab1725edfc810N.exe"

C:\Windows\SysWOW64\winver.exe

winver

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4704 -ip 4704

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4704 -s 352

Network

Country Destination Domain Proto
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 25.140.123.92.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 64.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp

Files

memory/4688-0-0x0000000000400000-0x000000000041D000-memory.dmp

memory/4688-1-0x00000000005B0000-0x00000000005B1000-memory.dmp

memory/3384-2-0x0000000000CF0000-0x0000000000CF6000-memory.dmp

memory/3384-3-0x0000000000CF0000-0x0000000000CF6000-memory.dmp

memory/4688-4-0x0000000002280000-0x0000000002C80000-memory.dmp

memory/3384-7-0x00007FF8879AD000-0x00007FF8879AE000-memory.dmp

memory/4704-6-0x0000000077312000-0x0000000077313000-memory.dmp

memory/4704-5-0x0000000000910000-0x0000000000916000-memory.dmp

memory/4704-8-0x00007FF887910000-0x00007FF887B05000-memory.dmp

memory/3384-9-0x00007FF887B40000-0x00007FF887B41000-memory.dmp

memory/4688-11-0x0000000000400000-0x000000000041D000-memory.dmp

memory/4688-12-0x0000000002280000-0x0000000002C80000-memory.dmp

memory/2624-16-0x0000000000F80000-0x0000000000F86000-memory.dmp

memory/4704-17-0x0000000000910000-0x0000000000916000-memory.dmp

memory/2624-19-0x00007FF887B30000-0x00007FF887B31000-memory.dmp