Malware Analysis Report

2024-10-19 13:24

Sample ID 240819-kwje7avdpg
Target 198f82cbc615ba9fd7de911ffc370170N.exe
SHA256 5d364943aba94cbbe721f2301ba349914f9415c77e583b60823cd8dae406cd50
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

5d364943aba94cbbe721f2301ba349914f9415c77e583b60823cd8dae406cd50

Threat Level: Known bad

The file 198f82cbc615ba9fd7de911ffc370170N.exe was found to be: Known bad.

Malicious Activity Summary

tinba banker discovery persistence trojan

Tinba / TinyBanker

Adds Run key to start application

System Location Discovery: System Language Discovery

Program crash

Unsigned PE

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of UnmapMainImage

Suspicious use of FindShellTrayWindow

Modifies data under HKEY_USERS

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-19 08:56

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-19 08:56

Reported

2024-08-19 08:59

Platform

win7-20240708-en

Max time kernel

120s

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-1-5-21-940600906-3464502421-4240639183-1000\Software\Microsoft\Windows\CurrentVersion\Run\BC5E82B2 = "C:\\Users\\Admin\\AppData\\Roaming\\BC5E82B2\\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\198f82cbc615ba9fd7de911ffc370170N.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

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\198f82cbc615ba9fd7de911ffc370170N.exe

"C:\Users\Admin\AppData\Local\Temp\198f82cbc615ba9fd7de911ffc370170N.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

Files

memory/1192-1-0x0000000002DE0000-0x0000000002DE6000-memory.dmp

memory/1192-3-0x0000000002DE0000-0x0000000002DE6000-memory.dmp

memory/1192-6-0x0000000002DE0000-0x0000000002DE6000-memory.dmp

memory/2760-4-0x0000000000110000-0x0000000000116000-memory.dmp

memory/1928-8-0x0000000000400000-0x000000000043C000-memory.dmp

memory/2760-23-0x00000000002B0000-0x00000000002B6000-memory.dmp

memory/832-20-0x0000000001D90000-0x0000000001D96000-memory.dmp

memory/1192-17-0x0000000002E50000-0x0000000002E56000-memory.dmp

memory/1164-14-0x0000000000120000-0x0000000000126000-memory.dmp

memory/1108-11-0x0000000000220000-0x0000000000226000-memory.dmp

memory/1108-27-0x0000000000220000-0x0000000000226000-memory.dmp

memory/832-26-0x0000000001D90000-0x0000000001D96000-memory.dmp

memory/1192-25-0x0000000002E50000-0x0000000002E56000-memory.dmp

memory/1164-24-0x0000000000120000-0x0000000000126000-memory.dmp

memory/2760-29-0x00000000002B0000-0x00000000002B6000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-19 08:56

Reported

2024-08-19 08:59

Platform

win10v2004-20240802-en

Max time kernel

120s

Max time network

104s

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\198f82cbc615ba9fd7de911ffc370170N.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\198f82cbc615ba9fd7de911ffc370170N.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\198f82cbc615ba9fd7de911ffc370170N.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\198f82cbc615ba9fd7de911ffc370170N.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\198f82cbc615ba9fd7de911ffc370170N.exe

"C:\Users\Admin\AppData\Local\Temp\198f82cbc615ba9fd7de911ffc370170N.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 1192 -ip 1192

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1192 -s 300

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 4004 -ip 4004

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4004 -s 1020

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 83.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.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 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/4004-1-0x00000000046E0000-0x0000000004D38000-memory.dmp

memory/4004-2-0x00000000044F0000-0x00000000044F1000-memory.dmp

memory/4004-3-0x00000000044F0000-0x00000000044F1000-memory.dmp

memory/4004-4-0x00000000046E0000-0x0000000004D38000-memory.dmp

memory/4004-5-0x00000000044F0000-0x00000000044F1000-memory.dmp

memory/4004-6-0x0000000003D80000-0x0000000003D81000-memory.dmp

memory/3512-8-0x0000000001210000-0x0000000001216000-memory.dmp

memory/3512-9-0x0000000001210000-0x0000000001216000-memory.dmp

memory/4004-10-0x0000000000400000-0x000000000043C000-memory.dmp

memory/3512-14-0x0000000003250000-0x0000000003256000-memory.dmp

memory/4004-13-0x00000000057F0000-0x00000000061F0000-memory.dmp

memory/2912-17-0x0000000000360000-0x0000000000366000-memory.dmp

memory/4004-22-0x00000000046E0000-0x0000000004D38000-memory.dmp

memory/4004-19-0x00000000057F0000-0x00000000061F0000-memory.dmp

memory/2912-23-0x0000000000360000-0x0000000000366000-memory.dmp