Malware Analysis Report

2024-10-19 13:24

Sample ID 240817-gbgjbazcrh
Target d3ddb6e155646b8530ad34270ab71abf2b5be8cc767c745397d512f34263cb2b
SHA256 d3ddb6e155646b8530ad34270ab71abf2b5be8cc767c745397d512f34263cb2b
Tags
tinba banker discovery 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

d3ddb6e155646b8530ad34270ab71abf2b5be8cc767c745397d512f34263cb2b

Threat Level: Known bad

The file d3ddb6e155646b8530ad34270ab71abf2b5be8cc767c745397d512f34263cb2b was found to be: Known bad.

Malicious Activity Summary

tinba banker discovery persistence trojan

Tinba / TinyBanker

Adds Run key to start application

Program crash

Enumerates physical storage devices

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of UnmapMainImage

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of SendNotifyMessage

Modifies data under HKEY_USERS

Suspicious use of FindShellTrayWindow

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-17 05:37

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-17 05:37

Reported

2024-08-17 05:40

Platform

win7-20240704-en

Max time kernel

148s

Max time network

149s

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\A742BC25 = "C:\\Users\\Admin\\AppData\\Roaming\\A742BC25\\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\d3ddb6e155646b8530ad34270ab71abf2b5be8cc767c745397d512f34263cb2b.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
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A

Suspicious use of SendNotifyMessage

Description Indicator Process Target
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2284 wrote to memory of 2856 N/A C:\Users\Admin\AppData\Local\Temp\d3ddb6e155646b8530ad34270ab71abf2b5be8cc767c745397d512f34263cb2b.exe C:\Windows\SysWOW64\winver.exe
PID 2284 wrote to memory of 2856 N/A C:\Users\Admin\AppData\Local\Temp\d3ddb6e155646b8530ad34270ab71abf2b5be8cc767c745397d512f34263cb2b.exe C:\Windows\SysWOW64\winver.exe
PID 2284 wrote to memory of 2856 N/A C:\Users\Admin\AppData\Local\Temp\d3ddb6e155646b8530ad34270ab71abf2b5be8cc767c745397d512f34263cb2b.exe C:\Windows\SysWOW64\winver.exe
PID 2284 wrote to memory of 2856 N/A C:\Users\Admin\AppData\Local\Temp\d3ddb6e155646b8530ad34270ab71abf2b5be8cc767c745397d512f34263cb2b.exe C:\Windows\SysWOW64\winver.exe
PID 2284 wrote to memory of 2856 N/A C:\Users\Admin\AppData\Local\Temp\d3ddb6e155646b8530ad34270ab71abf2b5be8cc767c745397d512f34263cb2b.exe C:\Windows\SysWOW64\winver.exe
PID 2856 wrote to memory of 1256 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\Explorer.EXE
PID 2856 wrote to memory of 1124 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\system32\taskhost.exe
PID 2856 wrote to memory of 1180 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\system32\Dwm.exe
PID 2856 wrote to memory of 1256 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\Explorer.EXE
PID 2856 wrote to memory of 1740 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\system32\DllHost.exe
PID 2856 wrote to memory of 2284 N/A C:\Windows\SysWOW64\winver.exe C:\Users\Admin\AppData\Local\Temp\d3ddb6e155646b8530ad34270ab71abf2b5be8cc767c745397d512f34263cb2b.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\d3ddb6e155646b8530ad34270ab71abf2b5be8cc767c745397d512f34263cb2b.exe

"C:\Users\Admin\AppData\Local\Temp\d3ddb6e155646b8530ad34270ab71abf2b5be8cc767c745397d512f34263cb2b.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/1256-1-0x0000000002700000-0x0000000002706000-memory.dmp

memory/2856-4-0x0000000000140000-0x0000000000146000-memory.dmp

memory/1256-3-0x0000000002700000-0x0000000002706000-memory.dmp

memory/1256-6-0x0000000002700000-0x0000000002706000-memory.dmp

memory/1740-20-0x0000000001D30000-0x0000000001D36000-memory.dmp

memory/1256-17-0x0000000002710000-0x0000000002716000-memory.dmp

memory/1180-14-0x00000000002A0000-0x00000000002A6000-memory.dmp

memory/1124-11-0x0000000001C40000-0x0000000001C46000-memory.dmp

memory/2284-8-0x0000000000400000-0x000000000043F000-memory.dmp

memory/2856-25-0x0000000000200000-0x0000000000206000-memory.dmp

memory/1180-26-0x00000000002A0000-0x00000000002A6000-memory.dmp

memory/1124-27-0x0000000001C40000-0x0000000001C46000-memory.dmp

memory/1256-29-0x0000000002710000-0x0000000002716000-memory.dmp

memory/1740-28-0x0000000001D30000-0x0000000001D36000-memory.dmp

memory/2856-31-0x0000000000200000-0x0000000000206000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-17 05:37

Reported

2024-08-17 05:40

Platform

win10v2004-20240802-en

Max time kernel

147s

Max time network

128s

Command Line

sihost.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\d3ddb6e155646b8530ad34270ab71abf2b5be8cc767c745397d512f34263cb2b.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
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\d3ddb6e155646b8530ad34270ab71abf2b5be8cc767c745397d512f34263cb2b.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\d3ddb6e155646b8530ad34270ab71abf2b5be8cc767c745397d512f34263cb2b.exe

"C:\Users\Admin\AppData\Local\Temp\d3ddb6e155646b8530ad34270ab71abf2b5be8cc767c745397d512f34263cb2b.exe"

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4112,i,9445584274764997943,12714240264001792460,262144 --variations-seed-version --mojo-platform-channel-handle=4032 /prefetch:8

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 408 -p 2208 -ip 2208

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2208 -s 300

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 3988 -ip 3988

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3988 -s 980

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 73.144.22.2.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 17.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 57.169.31.20.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
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 107.242.123.52.in-addr.arpa udp

Files

memory/3988-1-0x0000000004540000-0x0000000004B98000-memory.dmp

memory/3988-2-0x0000000003D80000-0x0000000003D81000-memory.dmp

memory/3988-3-0x0000000004540000-0x0000000004B98000-memory.dmp

memory/3988-4-0x0000000003D80000-0x0000000003D81000-memory.dmp

memory/3988-5-0x0000000003D80000-0x0000000003D81000-memory.dmp

memory/3988-7-0x0000000003D80000-0x0000000003D81000-memory.dmp

memory/3988-6-0x0000000003D80000-0x0000000003D81000-memory.dmp

memory/3988-8-0x0000000003D80000-0x0000000003D81000-memory.dmp

memory/3988-9-0x0000000003D80000-0x0000000003D81000-memory.dmp

memory/3988-10-0x0000000003D80000-0x0000000003D81000-memory.dmp

memory/3988-11-0x0000000003D80000-0x0000000003D81000-memory.dmp

memory/3492-14-0x0000000002DE0000-0x0000000002DE6000-memory.dmp

memory/3492-13-0x0000000002DE0000-0x0000000002DE6000-memory.dmp

memory/3988-15-0x0000000000400000-0x000000000043F000-memory.dmp

memory/3492-20-0x0000000002DF0000-0x0000000002DF6000-memory.dmp

memory/3988-19-0x0000000005750000-0x0000000006150000-memory.dmp

memory/2616-22-0x0000000000550000-0x0000000000556000-memory.dmp

memory/3988-23-0x0000000005750000-0x0000000006150000-memory.dmp

memory/3988-27-0x0000000004540000-0x0000000004B98000-memory.dmp

memory/2616-28-0x0000000000550000-0x0000000000556000-memory.dmp