Malware Analysis Report

2024-10-19 13:24

Sample ID 240818-xp69wsyfqg
Target 19b793c3e17f044cb2efbb81c023eaa62e203201b0df8544d491bdd53144dc07
SHA256 19b793c3e17f044cb2efbb81c023eaa62e203201b0df8544d491bdd53144dc07
Tags
discovery tinba banker persistence trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

19b793c3e17f044cb2efbb81c023eaa62e203201b0df8544d491bdd53144dc07

Threat Level: Known bad

The file 19b793c3e17f044cb2efbb81c023eaa62e203201b0df8544d491bdd53144dc07 was found to be: Known bad.

Malicious Activity Summary

discovery tinba banker persistence trojan

Tinba / TinyBanker

Adds Run key to start application

System Location Discovery: System Language Discovery

Unsigned PE

Program crash

Enumerates physical storage devices

Suspicious use of FindShellTrayWindow

Suspicious use of UnmapMainImage

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Modifies data under HKEY_USERS

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-18 19:02

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-18 19:02

Reported

2024-08-18 19:05

Platform

win10v2004-20240802-en

Max time kernel

149s

Max time network

150s

Command Line

C:\Windows\Explorer.EXE

Signatures

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\19b793c3e17f044cb2efbb81c023eaa62e203201b0df8544d491bdd53144dc07.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\winver.exe N/A

Modifies data under HKEY_USERS

Description Indicator Process Target
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@%SystemRoot%\system32\hnetcfgclient.dll,-201 = "HNetCfg Client" C:\Windows\System32\svchost.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
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
N/A N/A C:\Users\Admin\AppData\Local\Temp\19b793c3e17f044cb2efbb81c023eaa62e203201b0df8544d491bdd53144dc07.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:\Users\Admin\AppData\Local\Temp\19b793c3e17f044cb2efbb81c023eaa62e203201b0df8544d491bdd53144dc07.exe

"C:\Users\Admin\AppData\Local\Temp\19b793c3e17f044cb2efbb81c023eaa62e203201b0df8544d491bdd53144dc07.exe"

C:\Windows\System32\svchost.exe

C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman

C:\Windows\SysWOW64\winver.exe

winver

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 2176 -ip 2176

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2176 -s 300

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2676 -ip 2676

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2676 -s 780

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 3.181.190.20.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 21.58.20.217.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.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 150.171.28.10:443 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 udp

Files

memory/2676-1-0x0000000004660000-0x0000000004CB8000-memory.dmp

memory/2676-2-0x00000000024E0000-0x00000000024E1000-memory.dmp

memory/2676-3-0x00000000024E0000-0x00000000024E1000-memory.dmp

memory/2676-4-0x0000000004660000-0x0000000004CB8000-memory.dmp

memory/3448-6-0x00000000026F0000-0x00000000026F6000-memory.dmp

memory/3448-7-0x00000000026F0000-0x00000000026F6000-memory.dmp

memory/2676-8-0x0000000000400000-0x000000000043C000-memory.dmp

memory/3448-12-0x0000000002700000-0x0000000002706000-memory.dmp

memory/2676-15-0x0000000004660000-0x0000000004CB8000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-18 19:02

Reported

2024-08-18 19:05

Platform

win7-20240704-en

Max time kernel

149s

Max time network

151s

Command Line

"taskhost.exe"

Signatures

Tinba / TinyBanker

trojan banker tinba

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000\Software\Microsoft\Windows\CurrentVersion\Run\1E105486 = "C:\\Users\\Admin\\AppData\\Roaming\\1E105486\\bin.exe" C:\Windows\SysWOW64\winver.exe N/A

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\19b793c3e17f044cb2efbb81c023eaa62e203201b0df8544d491bdd53144dc07.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2376 wrote to memory of 3056 N/A C:\Users\Admin\AppData\Local\Temp\19b793c3e17f044cb2efbb81c023eaa62e203201b0df8544d491bdd53144dc07.exe C:\Windows\SysWOW64\winver.exe
PID 2376 wrote to memory of 3056 N/A C:\Users\Admin\AppData\Local\Temp\19b793c3e17f044cb2efbb81c023eaa62e203201b0df8544d491bdd53144dc07.exe C:\Windows\SysWOW64\winver.exe
PID 2376 wrote to memory of 3056 N/A C:\Users\Admin\AppData\Local\Temp\19b793c3e17f044cb2efbb81c023eaa62e203201b0df8544d491bdd53144dc07.exe C:\Windows\SysWOW64\winver.exe
PID 2376 wrote to memory of 3056 N/A C:\Users\Admin\AppData\Local\Temp\19b793c3e17f044cb2efbb81c023eaa62e203201b0df8544d491bdd53144dc07.exe C:\Windows\SysWOW64\winver.exe
PID 2376 wrote to memory of 3056 N/A C:\Users\Admin\AppData\Local\Temp\19b793c3e17f044cb2efbb81c023eaa62e203201b0df8544d491bdd53144dc07.exe C:\Windows\SysWOW64\winver.exe
PID 3056 wrote to memory of 1196 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\Explorer.EXE
PID 3056 wrote to memory of 1096 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\system32\taskhost.exe
PID 3056 wrote to memory of 1160 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\system32\Dwm.exe
PID 3056 wrote to memory of 1196 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\Explorer.EXE
PID 3056 wrote to memory of 1268 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\system32\DllHost.exe
PID 3056 wrote to memory of 2376 N/A C:\Windows\SysWOW64\winver.exe C:\Users\Admin\AppData\Local\Temp\19b793c3e17f044cb2efbb81c023eaa62e203201b0df8544d491bdd53144dc07.exe

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\19b793c3e17f044cb2efbb81c023eaa62e203201b0df8544d491bdd53144dc07.exe

"C:\Users\Admin\AppData\Local\Temp\19b793c3e17f044cb2efbb81c023eaa62e203201b0df8544d491bdd53144dc07.exe"

C:\Windows\SysWOW64\winver.exe

winver

Network

Country Destination Domain Proto
US 8.8.8.8:53 elitiorecfreetoo.cc udp
US 216.218.185.162:80 elitiorecfreetoo.cc tcp

Files

memory/1196-1-0x00000000025A0000-0x00000000025A6000-memory.dmp

memory/3056-4-0x0000000000100000-0x0000000000106000-memory.dmp

memory/1196-6-0x00000000025A0000-0x00000000025A6000-memory.dmp

memory/1196-3-0x00000000025A0000-0x00000000025A6000-memory.dmp

memory/2376-15-0x0000000000400000-0x000000000043C000-memory.dmp

memory/3056-25-0x00000000002A0000-0x00000000002A6000-memory.dmp

memory/1268-20-0x0000000002090000-0x0000000002096000-memory.dmp

memory/1196-17-0x00000000028F0000-0x00000000028F6000-memory.dmp

memory/1160-13-0x00000000001A0000-0x00000000001A6000-memory.dmp

memory/1096-10-0x00000000002A0000-0x00000000002A6000-memory.dmp

memory/1096-26-0x00000000002A0000-0x00000000002A6000-memory.dmp

memory/1196-29-0x00000000028F0000-0x00000000028F6000-memory.dmp

memory/1160-28-0x00000000001A0000-0x00000000001A6000-memory.dmp

memory/1268-27-0x0000000002090000-0x0000000002096000-memory.dmp

memory/3056-31-0x00000000002A0000-0x00000000002A6000-memory.dmp