Malware Analysis Report

2025-01-19 07:41

Sample ID 241105-kxwrxayglr
Target 977ce1ef29b147ac14519b3077ff04bb583cf370614cc3f7f69e794ba82087d4N
SHA256 977ce1ef29b147ac14519b3077ff04bb583cf370614cc3f7f69e794ba82087d4
Tags
tinba banker discovery persistence trojan upx
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

977ce1ef29b147ac14519b3077ff04bb583cf370614cc3f7f69e794ba82087d4

Threat Level: Known bad

The file 977ce1ef29b147ac14519b3077ff04bb583cf370614cc3f7f69e794ba82087d4N was found to be: Known bad.

Malicious Activity Summary

tinba banker discovery persistence trojan upx

Tinba / TinyBanker

Tinba family

Adds Run key to start application

UPX packed file

System Location Discovery: System Language Discovery

Program crash

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious use of UnmapMainImage

Suspicious behavior: EnumeratesProcesses

Suspicious use of FindShellTrayWindow

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-05 08:59

Signatures

UPX packed file

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

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-05 08:59

Reported

2024-11-05 09:01

Platform

win7-20240903-en

Max time kernel

118s

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-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\B54CC736 = "C:\\Users\\Admin\\AppData\\Roaming\\B54CC736\\bin.exe" C:\Windows\SysWOW64\winver.exe N/A

UPX packed file

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

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\winver.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\977ce1ef29b147ac14519b3077ff04bb583cf370614cc3f7f69e794ba82087d4N.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\977ce1ef29b147ac14519b3077ff04bb583cf370614cc3f7f69e794ba82087d4N.exe

"C:\Users\Admin\AppData\Local\Temp\977ce1ef29b147ac14519b3077ff04bb583cf370614cc3f7f69e794ba82087d4N.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/2848-0-0x0000000000400000-0x000000000041E000-memory.dmp

memory/2848-1-0x0000000000020000-0x0000000000021000-memory.dmp

memory/1212-4-0x00000000025D0000-0x00000000025D6000-memory.dmp

memory/1212-3-0x00000000025D0000-0x00000000025D6000-memory.dmp

memory/1212-2-0x00000000025D0000-0x00000000025D6000-memory.dmp

memory/2848-5-0x0000000001E60000-0x0000000002860000-memory.dmp

memory/1212-10-0x0000000077451000-0x0000000077452000-memory.dmp

memory/2248-9-0x00000000775FF000-0x0000000077601000-memory.dmp

memory/2248-8-0x00000000775FF000-0x0000000077600000-memory.dmp

memory/2248-7-0x0000000077600000-0x0000000077601000-memory.dmp

memory/2248-6-0x00000000001A0000-0x00000000001A6000-memory.dmp

memory/2248-11-0x0000000077400000-0x00000000775A9000-memory.dmp

memory/2848-12-0x0000000000400000-0x000000000041E000-memory.dmp

memory/2848-13-0x0000000001E60000-0x0000000002860000-memory.dmp

memory/1168-20-0x00000000001B0000-0x00000000001B6000-memory.dmp

memory/1212-25-0x0000000002580000-0x0000000002586000-memory.dmp

memory/848-24-0x0000000001D30000-0x0000000001D36000-memory.dmp

memory/1212-22-0x0000000002580000-0x0000000002586000-memory.dmp

memory/848-26-0x0000000001D30000-0x0000000001D36000-memory.dmp

memory/1116-29-0x0000000077451000-0x0000000077452000-memory.dmp

memory/2248-30-0x00000000001A0000-0x00000000001A6000-memory.dmp

memory/1168-31-0x00000000001B0000-0x00000000001B6000-memory.dmp

memory/1116-28-0x00000000002D0000-0x00000000002D6000-memory.dmp

memory/848-27-0x0000000077451000-0x0000000077452000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-05 08:59

Reported

2024-11-05 09:01

Platform

win10v2004-20241007-en

Max time kernel

119s

Max time network

105s

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-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\A388EA99 = "C:\\Users\\Admin\\AppData\\Roaming\\A388EA99\\bin.exe" C:\Windows\SysWOW64\winver.exe N/A

UPX packed file

upx
Description Indicator Process Target
N/A N/A N/A 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\977ce1ef29b147ac14519b3077ff04bb583cf370614cc3f7f69e794ba82087d4N.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

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

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\winver.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\977ce1ef29b147ac14519b3077ff04bb583cf370614cc3f7f69e794ba82087d4N.exe

"C:\Users\Admin\AppData\Local\Temp\977ce1ef29b147ac14519b3077ff04bb583cf370614cc3f7f69e794ba82087d4N.exe"

C:\Windows\SysWOW64\winver.exe

winver

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2076 -ip 2076

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2076 -s 352

Network

Country Destination Domain Proto
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 104.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 200.163.202.172.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 92.12.20.2.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 142.72.21.2.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa 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/4280-0-0x0000000000400000-0x000000000041E000-memory.dmp

memory/4280-1-0x00000000005B0000-0x00000000005B1000-memory.dmp

memory/3436-3-0x0000000000350000-0x0000000000356000-memory.dmp

memory/3436-2-0x0000000000350000-0x0000000000356000-memory.dmp

memory/4280-4-0x0000000002340000-0x0000000002D40000-memory.dmp

memory/3436-7-0x00007FFA5480D000-0x00007FFA5480E000-memory.dmp

memory/2076-6-0x0000000077AF2000-0x0000000077AF3000-memory.dmp

memory/2076-5-0x0000000000CE0000-0x0000000000CE6000-memory.dmp

memory/2076-8-0x00007FFA54770000-0x00007FFA54965000-memory.dmp

memory/3436-9-0x00007FFA549A0000-0x00007FFA549A1000-memory.dmp

memory/4280-11-0x0000000000400000-0x000000000041E000-memory.dmp

memory/4280-12-0x0000000002340000-0x0000000002D40000-memory.dmp

memory/2556-16-0x0000000000CD0000-0x0000000000CD6000-memory.dmp

memory/2076-17-0x0000000000CE0000-0x0000000000CE6000-memory.dmp

memory/2556-19-0x00007FFA54990000-0x00007FFA54991000-memory.dmp