Malware Analysis Report

2024-10-19 13:24

Sample ID 240822-zwtngszgjm
Target 972b702aa633aa47cf516d6de1895820N.exe
SHA256 b5d0e19e07d8a6899768946b112ba0a97478f93a89ed0a98e1be01f96a108b45
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

b5d0e19e07d8a6899768946b112ba0a97478f93a89ed0a98e1be01f96a108b45

Threat Level: Known bad

The file 972b702aa633aa47cf516d6de1895820N.exe was found to be: Known bad.

Malicious Activity Summary

tinba banker discovery persistence trojan

Tinba / TinyBanker

Adds Run key to start application

Enumerates physical storage devices

Program crash

System Location Discovery: System Language Discovery

Unsigned PE

Modifies data under HKEY_USERS

Suspicious use of UnmapMainImage

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of SendNotifyMessage

Suspicious use of WriteProcessMemory

Suspicious use of FindShellTrayWindow

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-22 21:04

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-22 21:04

Reported

2024-08-22 21:06

Platform

win7-20240705-en

Max time kernel

118s

Max time network

120s

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-1-5-21-2172136094-3310281978-782691160-1000\Software\Microsoft\Windows\CurrentVersion\Run\B4D980C8 = "C:\\Users\\Admin\\AppData\\Roaming\\B4D980C8\\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\972b702aa633aa47cf516d6de1895820N.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

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

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\972b702aa633aa47cf516d6de1895820N.exe

"C:\Users\Admin\AppData\Local\Temp\972b702aa633aa47cf516d6de1895820N.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
US 8.8.8.8:53 ljjskttqximu.com udp
US 8.8.8.8:53 ljjskttqximu.net udp
US 8.8.8.8:53 ljjskttqximu.in udp
US 216.218.185.162:80 ljjskttqximu.in tcp
US 8.8.8.8:53 ljjskttqximu.ru udp
US 162.249.66.138:80 ljjskttqximu.ru tcp
US 8.8.8.8:53 fovcpylsiqvv.com udp
US 216.218.185.162:80 fovcpylsiqvv.com tcp
US 8.8.8.8:53 fovcpylsiqvv.net udp
US 8.8.8.8:53 fovcpylsiqvv.in udp
US 216.218.185.162:80 fovcpylsiqvv.in tcp
US 8.8.8.8:53 fovcpylsiqvv.ru udp
US 8.8.8.8:53 ptuvwkjgwleu.com udp
US 8.8.8.8:53 ptuvwkjgwleu.net udp
US 8.8.8.8:53 ptuvwkjgwleu.in udp
US 216.218.185.162:80 ptuvwkjgwleu.in tcp
US 8.8.8.8:53 ptuvwkjgwleu.ru udp
US 8.8.8.8:53 pxscpwnnqujq.com udp
US 8.8.8.8:53 pxscpwnnqujq.net udp
US 216.218.185.162:80 pxscpwnnqujq.net tcp
US 8.8.8.8:53 pxscpwnnqujq.in udp
US 216.218.185.162:80 pxscpwnnqujq.in tcp
US 8.8.8.8:53 pxscpwnnqujq.ru udp
US 8.8.8.8:53 pvmjyqwwugwx.com udp
US 8.8.8.8:53 pvmjyqwwugwx.net udp
US 8.8.8.8:53 pvmjyqwwugwx.in udp
US 216.218.185.162:80 pvmjyqwwugwx.in tcp

Files

memory/2796-4-0x0000000000120000-0x0000000000126000-memory.dmp

memory/1200-3-0x0000000002530000-0x0000000002536000-memory.dmp

memory/2796-5-0x0000000000120000-0x0000000000126000-memory.dmp

memory/1200-6-0x0000000002530000-0x0000000002536000-memory.dmp

memory/1200-1-0x0000000002530000-0x0000000002536000-memory.dmp

memory/1100-9-0x0000000000390000-0x0000000000396000-memory.dmp

memory/2796-23-0x00000000001A0000-0x00000000001A6000-memory.dmp

memory/1712-18-0x0000000001E20000-0x0000000001E26000-memory.dmp

memory/1200-15-0x0000000002580000-0x0000000002586000-memory.dmp

memory/1160-12-0x00000000001B0000-0x00000000001B6000-memory.dmp

memory/2676-25-0x0000000000400000-0x000000000043C000-memory.dmp

memory/1100-26-0x0000000000390000-0x0000000000396000-memory.dmp

memory/1712-29-0x0000000001E20000-0x0000000001E26000-memory.dmp

memory/1160-28-0x00000000001B0000-0x00000000001B6000-memory.dmp

memory/1200-27-0x0000000002580000-0x0000000002586000-memory.dmp

memory/2796-31-0x00000000001A0000-0x00000000001A6000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-22 21:04

Reported

2024-08-22 21:06

Platform

win10v2004-20240802-en

Max time kernel

116s

Max time network

124s

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\972b702aa633aa47cf516d6de1895820N.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 behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\972b702aa633aa47cf516d6de1895820N.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\972b702aa633aa47cf516d6de1895820N.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\972b702aa633aa47cf516d6de1895820N.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\972b702aa633aa47cf516d6de1895820N.exe

"C:\Users\Admin\AppData\Local\Temp\972b702aa633aa47cf516d6de1895820N.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 408 -p 3528 -ip 3528

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3528 -s 300

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 884 -ip 884

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 884 -s 984

Network

Country Destination Domain Proto
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 73.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 elitiorecfreetoo.cc udp
US 8.8.8.8:53 58.99.105.20.in-addr.arpa udp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 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 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp

Files

memory/884-1-0x0000000004650000-0x0000000004CA8000-memory.dmp

memory/884-2-0x0000000002260000-0x0000000002261000-memory.dmp

memory/884-3-0x0000000004650000-0x0000000004CA8000-memory.dmp

memory/884-4-0x0000000002260000-0x0000000002261000-memory.dmp

memory/884-5-0x0000000002260000-0x0000000002261000-memory.dmp

memory/884-6-0x0000000002260000-0x0000000002261000-memory.dmp

memory/3444-8-0x0000000000740000-0x0000000000746000-memory.dmp

memory/3444-9-0x0000000000740000-0x0000000000746000-memory.dmp

memory/884-10-0x0000000000400000-0x000000000043C000-memory.dmp

memory/3444-15-0x00000000007B0000-0x00000000007B6000-memory.dmp

memory/884-14-0x0000000005760000-0x0000000006160000-memory.dmp

memory/2992-17-0x0000000000EC0000-0x0000000000EC6000-memory.dmp

memory/884-18-0x0000000005760000-0x0000000006160000-memory.dmp

memory/884-22-0x0000000004650000-0x0000000004CA8000-memory.dmp

memory/2992-23-0x0000000000EC0000-0x0000000000EC6000-memory.dmp