Malware Analysis Report

2025-01-19 07:41

Sample ID 241103-n1zvhstbmd
Target 300ef90cbde8df782048a8585b86eda9549c2eea3def8ae96bf9a5e0cb186a0dN
SHA256 300ef90cbde8df782048a8585b86eda9549c2eea3def8ae96bf9a5e0cb186a0d
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: 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

300ef90cbde8df782048a8585b86eda9549c2eea3def8ae96bf9a5e0cb186a0d

Threat Level: Known bad

The file 300ef90cbde8df782048a8585b86eda9549c2eea3def8ae96bf9a5e0cb186a0dN was found to be: Known bad.

Malicious Activity Summary

tinba banker discovery persistence trojan

Tinba family

Tinba / TinyBanker

Adds Run key to start application

Unsigned PE

System Location Discovery: System Language Discovery

Program crash

Suspicious behavior: EnumeratesProcesses

Suspicious use of UnmapMainImage

Suspicious use of WriteProcessMemory

Suspicious use of FindShellTrayWindow

Modifies registry class

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-03 11:52

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-03 11:52

Reported

2024-11-03 11:54

Platform

win10v2004-20241007-en

Max time kernel

118s

Max time network

120s

Command Line

sihost.exe

Signatures

Tinba / TinyBanker

trojan banker tinba

Tinba family

tinba

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\1F51E607 = "C:\\Users\\Admin\\AppData\\Roaming\\1F51E607\\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

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\300ef90cbde8df782048a8585b86eda9549c2eea3def8ae96bf9a5e0cb186a0dN.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\winver.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ C:\Windows\Explorer.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

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
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
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:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.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\300ef90cbde8df782048a8585b86eda9549c2eea3def8ae96bf9a5e0cb186a0dN.exe

"C:\Users\Admin\AppData\Local\Temp\300ef90cbde8df782048a8585b86eda9549c2eea3def8ae96bf9a5e0cb186a0dN.exe"

C:\Windows\SysWOW64\winver.exe

winver

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 2120 -ip 2120

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2120 -s 356

Network

Country Destination Domain Proto
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 0.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 150.171.27.10:443 g.bing.com tcp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 197.87.175.4.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 92.12.20.2.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.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 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp

Files

memory/1128-0-0x0000000000400000-0x000000000041C000-memory.dmp

memory/1128-1-0x00000000007C0000-0x00000000007C1000-memory.dmp

memory/3376-3-0x0000000001E40000-0x0000000001E46000-memory.dmp

memory/3376-2-0x0000000001E40000-0x0000000001E46000-memory.dmp

memory/1128-4-0x0000000002190000-0x0000000002B90000-memory.dmp

memory/3376-6-0x00007FFC7BE4D000-0x00007FFC7BE4E000-memory.dmp

memory/2120-5-0x0000000077642000-0x0000000077643000-memory.dmp

memory/2120-7-0x00007FFC7BDB0000-0x00007FFC7BFA5000-memory.dmp

memory/1128-9-0x0000000000400000-0x000000000041C000-memory.dmp

memory/1128-10-0x0000000002190000-0x0000000002B90000-memory.dmp

memory/3376-11-0x00007FFC7BFE0000-0x00007FFC7BFE1000-memory.dmp

memory/3376-12-0x00007FFC7BFC0000-0x00007FFC7BFC1000-memory.dmp

memory/2120-14-0x00000000006D0000-0x00000000006D6000-memory.dmp

memory/2664-16-0x00000000004A0000-0x00000000004A6000-memory.dmp

memory/2120-17-0x00000000006D0000-0x00000000006D6000-memory.dmp

memory/2664-18-0x00000000004A0000-0x00000000004A6000-memory.dmp

memory/2664-19-0x00007FFC7BFD0000-0x00007FFC7BFD1000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-03 11:52

Reported

2024-11-03 11:54

Platform

win7-20240729-en

Max time kernel

119s

Max time network

119s

Command Line

"taskhost.exe"

Signatures

Tinba / TinyBanker

trojan banker tinba

Tinba family

tinba

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\0D5220AF = "C:\\Users\\Admin\\AppData\\Roaming\\0D5220AF\\bin.exe" C:\Windows\SysWOW64\winver.exe N/A

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\300ef90cbde8df782048a8585b86eda9549c2eea3def8ae96bf9a5e0cb186a0dN.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

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\300ef90cbde8df782048a8585b86eda9549c2eea3def8ae96bf9a5e0cb186a0dN.exe

"C:\Users\Admin\AppData\Local\Temp\300ef90cbde8df782048a8585b86eda9549c2eea3def8ae96bf9a5e0cb186a0dN.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/1456-0-0x0000000000400000-0x000000000041C000-memory.dmp

memory/1456-1-0x0000000000020000-0x0000000000021000-memory.dmp

memory/1252-4-0x0000000002E00000-0x0000000002E06000-memory.dmp

memory/1252-3-0x0000000002E00000-0x0000000002E06000-memory.dmp

memory/1252-2-0x0000000002E00000-0x0000000002E06000-memory.dmp

memory/1456-5-0x0000000001C90000-0x0000000002690000-memory.dmp

memory/2700-11-0x00000000775E0000-0x0000000077789000-memory.dmp

memory/1252-10-0x0000000077631000-0x0000000077632000-memory.dmp

memory/2700-9-0x00000000777DF000-0x00000000777E1000-memory.dmp

memory/2700-8-0x00000000777DF000-0x00000000777E0000-memory.dmp

memory/2700-7-0x00000000777E0000-0x00000000777E1000-memory.dmp

memory/2700-6-0x00000000001A0000-0x00000000001A6000-memory.dmp

memory/1456-12-0x0000000000400000-0x000000000041C000-memory.dmp

memory/1456-13-0x0000000001C90000-0x0000000002690000-memory.dmp

memory/2700-32-0x00000000001A0000-0x00000000001A6000-memory.dmp

memory/1784-31-0x0000000077631000-0x0000000077632000-memory.dmp

memory/1784-30-0x0000000002270000-0x0000000002276000-memory.dmp

memory/1784-29-0x0000000077631000-0x0000000077632000-memory.dmp

memory/1252-28-0x0000000002DB0000-0x0000000002DB6000-memory.dmp

memory/1204-27-0x0000000000320000-0x0000000000326000-memory.dmp

memory/1100-26-0x0000000077631000-0x0000000077632000-memory.dmp

memory/1100-25-0x00000000001E0000-0x00000000001E6000-memory.dmp

memory/1784-24-0x0000000002270000-0x0000000002276000-memory.dmp

memory/1252-22-0x0000000002DB0000-0x0000000002DB6000-memory.dmp

memory/1204-20-0x0000000000320000-0x0000000000326000-memory.dmp