Malware Analysis Report

2025-01-19 07:23

Sample ID 231220-sr842sedgj
Target d6524ed4ea22dd45153fd8863d2ae0a0
SHA256 37e7e24ec3835c93eb82207f6d0ff0d6949501cea4dbdb81b2c396d7ae875bc0
Tags
upx tinba banker persistence trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

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

37e7e24ec3835c93eb82207f6d0ff0d6949501cea4dbdb81b2c396d7ae875bc0

Threat Level: Known bad

The file d6524ed4ea22dd45153fd8863d2ae0a0 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

Unsigned PE

Program crash

Suspicious use of FindShellTrayWindow

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of UnmapMainImage

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-20 15:22

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

2023-12-20 15:22

Reported

2023-12-20 22:29

Platform

win7-20231215-en

Max time kernel

149s

Max time network

148s

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-1-5-21-3818056530-936619650-3554021955-1000\Software\Microsoft\Windows\CurrentVersion\Run\410A66A7 = "C:\\Users\\Admin\\AppData\\Roaming\\410A66A7\\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\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Windows\system32\Dwm.exe

"C:\Windows\system32\Dwm.exe"

C:\Users\Admin\AppData\Local\Temp\d6524ed4ea22dd45153fd8863d2ae0a0.exe

"C:\Users\Admin\AppData\Local\Temp\d6524ed4ea22dd45153fd8863d2ae0a0.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/2144-0-0x0000000000400000-0x0000000000417000-memory.dmp

memory/2144-1-0x0000000000020000-0x0000000000021000-memory.dmp

memory/2144-3-0x0000000001DC0000-0x00000000027C0000-memory.dmp

memory/2320-4-0x0000000000270000-0x0000000000276000-memory.dmp

memory/1232-2-0x0000000002D80000-0x0000000002D86000-memory.dmp

memory/1232-6-0x0000000002D80000-0x0000000002D86000-memory.dmp

memory/1232-11-0x00000000771D1000-0x00000000771D2000-memory.dmp

memory/2320-10-0x0000000077380000-0x0000000077381000-memory.dmp

memory/2320-9-0x000000007737F000-0x0000000077381000-memory.dmp

memory/2320-8-0x000000007737F000-0x0000000077380000-memory.dmp

memory/2320-7-0x0000000000640000-0x0000000000656000-memory.dmp

memory/2144-12-0x0000000000400000-0x0000000000417000-memory.dmp

memory/2144-13-0x0000000001DC0000-0x00000000027C0000-memory.dmp

memory/2320-15-0x0000000000270000-0x0000000000276000-memory.dmp

memory/2320-16-0x0000000000500000-0x0000000000501000-memory.dmp

memory/1164-21-0x00000000002C0000-0x00000000002C6000-memory.dmp

memory/1232-23-0x00000000029C0000-0x00000000029C6000-memory.dmp

memory/1108-24-0x00000000020F0000-0x00000000020F6000-memory.dmp

memory/1108-25-0x00000000771D1000-0x00000000771D2000-memory.dmp

memory/1164-26-0x00000000002C0000-0x00000000002C6000-memory.dmp

memory/1232-27-0x00000000029C0000-0x00000000029C6000-memory.dmp

memory/2320-31-0x0000000000270000-0x0000000000276000-memory.dmp

memory/2320-32-0x0000000000510000-0x0000000000511000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-20 15:22

Reported

2023-12-20 22:29

Platform

win10v2004-20231215-en

Max time kernel

149s

Max time network

146s

Command Line

C:\Windows\Explorer.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-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\E98D790D = "C:\\Users\\Admin\\AppData\\Roaming\\E98D790D\\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\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Windows\system32\sihost.exe

sihost.exe

C:\Users\Admin\AppData\Local\Temp\d6524ed4ea22dd45153fd8863d2ae0a0.exe

"C:\Users\Admin\AppData\Local\Temp\d6524ed4ea22dd45153fd8863d2ae0a0.exe"

C:\Windows\SysWOW64\winver.exe

winver

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 448 -ip 448

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 448 -s 352

Network

Country Destination Domain Proto
US 8.8.8.8:53 0.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 167.109.18.2.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 57.110.18.2.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 www.microsoft.com udp
US 2.17.5.133:80 www.microsoft.com tcp
US 8.8.8.8:53 133.5.17.2.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 88.65.42.20.in-addr.arpa udp

Files

memory/3888-0-0x0000000000400000-0x0000000000417000-memory.dmp

memory/3888-1-0x00000000005B0000-0x00000000005B1000-memory.dmp

memory/3412-2-0x0000000002A50000-0x0000000002A56000-memory.dmp

memory/3412-3-0x0000000002A50000-0x0000000002A56000-memory.dmp

memory/3888-4-0x00000000022D0000-0x0000000002CD0000-memory.dmp

memory/448-6-0x0000000077D62000-0x0000000077D63000-memory.dmp

memory/3412-5-0x00007FFEDC54D000-0x00007FFEDC54E000-memory.dmp

memory/448-7-0x0000000002C80000-0x0000000002C86000-memory.dmp

memory/3888-8-0x0000000000400000-0x0000000000417000-memory.dmp

memory/3888-9-0x00000000022D0000-0x0000000002CD0000-memory.dmp

memory/3412-10-0x00007FFEDC6E0000-0x00007FFEDC6E1000-memory.dmp

memory/2476-14-0x0000000000360000-0x0000000000366000-memory.dmp

memory/448-15-0x0000000002C80000-0x0000000002C86000-memory.dmp