Malware Analysis Report

2025-01-19 07:39

Sample ID 241117-hynftathlg
Target 88f7f074ca91791ce01de2e033f36077f169ce8d8add835e5db0bb628e5d9972
SHA256 88f7f074ca91791ce01de2e033f36077f169ce8d8add835e5db0bb628e5d9972
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

88f7f074ca91791ce01de2e033f36077f169ce8d8add835e5db0bb628e5d9972

Threat Level: Known bad

The file 88f7f074ca91791ce01de2e033f36077f169ce8d8add835e5db0bb628e5d9972 was found to be: Known bad.

Malicious Activity Summary

tinba banker discovery persistence trojan

Tinba / TinyBanker

Tinba family

Adds Run key to start application

Unsigned PE

System Location Discovery: System Language Discovery

Program crash

Suspicious behavior: EnumeratesProcesses

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Suspicious use of AdjustPrivilegeToken

Suspicious use of UnmapMainImage

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-17 07:08

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-17 07:08

Reported

2024-11-17 07:11

Platform

win7-20240903-en

Max time kernel

149s

Max time network

145s

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-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\13C941B5 = "C:\\Users\\Admin\\AppData\\Roaming\\13C941B5\\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\88f7f074ca91791ce01de2e033f36077f169ce8d8add835e5db0bb628e5d9972.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
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\88f7f074ca91791ce01de2e033f36077f169ce8d8add835e5db0bb628e5d9972.exe

"C:\Users\Admin\AppData\Local\Temp\88f7f074ca91791ce01de2e033f36077f169ce8d8add835e5db0bb628e5d9972.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
US 8.8.8.8:53 uyhgqunqkxnx.pw udp
SG 45.77.249.79:80 uyhgqunqkxnx.pw tcp
US 8.8.8.8:53 vcklmnnejwxx.pw udp
US 216.218.185.162:80 vcklmnnejwxx.pw tcp

Files

memory/3056-0-0x0000000000020000-0x0000000000021000-memory.dmp

memory/1200-3-0x00000000025D0000-0x00000000025D6000-memory.dmp

memory/1200-2-0x00000000025D0000-0x00000000025D6000-memory.dmp

memory/1200-1-0x00000000025D0000-0x00000000025D6000-memory.dmp

memory/3056-4-0x0000000001DB0000-0x00000000027B0000-memory.dmp

memory/1200-9-0x0000000077591000-0x0000000077592000-memory.dmp

memory/2408-10-0x0000000077540000-0x00000000776E9000-memory.dmp

memory/2408-8-0x000000007773F000-0x0000000077741000-memory.dmp

memory/2408-7-0x000000007773F000-0x0000000077740000-memory.dmp

memory/2408-6-0x0000000077740000-0x0000000077741000-memory.dmp

memory/2408-5-0x00000000001A0000-0x00000000001A6000-memory.dmp

memory/3056-11-0x0000000000400000-0x0000000000414000-memory.dmp

memory/3056-12-0x0000000001DB0000-0x00000000027B0000-memory.dmp

memory/1440-27-0x0000000077591000-0x0000000077592000-memory.dmp

memory/1112-26-0x0000000077591000-0x0000000077592000-memory.dmp

memory/1112-25-0x0000000001F10000-0x0000000001F16000-memory.dmp

memory/1440-24-0x0000000001FB0000-0x0000000001FB6000-memory.dmp

memory/1200-22-0x0000000002580000-0x0000000002586000-memory.dmp

memory/1160-20-0x0000000001EB0000-0x0000000001EB6000-memory.dmp

memory/1160-28-0x0000000001EB0000-0x0000000001EB6000-memory.dmp

memory/1200-29-0x0000000002580000-0x0000000002586000-memory.dmp

memory/1440-31-0x0000000077591000-0x0000000077592000-memory.dmp

memory/1440-30-0x0000000001FB0000-0x0000000001FB6000-memory.dmp

memory/2408-32-0x00000000001A0000-0x00000000001A6000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-17 07:08

Reported

2024-11-17 07:11

Platform

win10v2004-20241007-en

Max time kernel

149s

Max time network

152s

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-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\FDBBF9C6 = "C:\\Users\\Admin\\AppData\\Roaming\\FDBBF9C6\\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\88f7f074ca91791ce01de2e033f36077f169ce8d8add835e5db0bb628e5d9972.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\88f7f074ca91791ce01de2e033f36077f169ce8d8add835e5db0bb628e5d9972.exe

"C:\Users\Admin\AppData\Local\Temp\88f7f074ca91791ce01de2e033f36077f169ce8d8add835e5db0bb628e5d9972.exe"

C:\Windows\SysWOW64\winver.exe

winver

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4624 -ip 4624

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4624 -s 352

Network

Country Destination Domain Proto
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 20.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 53.210.109.20.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 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 12.173.189.20.in-addr.arpa udp

Files

memory/3124-0-0x0000000000460000-0x0000000000461000-memory.dmp

memory/3424-2-0x0000000000600000-0x0000000000606000-memory.dmp

memory/3424-1-0x0000000000600000-0x0000000000606000-memory.dmp

memory/3124-3-0x0000000002260000-0x0000000002C60000-memory.dmp

memory/3424-5-0x00007FFBA31CD000-0x00007FFBA31CE000-memory.dmp

memory/4624-4-0x0000000077502000-0x0000000077503000-memory.dmp

memory/4624-6-0x00007FFBA3130000-0x00007FFBA3325000-memory.dmp

memory/3424-7-0x00007FFBA3360000-0x00007FFBA3361000-memory.dmp

memory/3124-8-0x0000000000400000-0x0000000000414000-memory.dmp

memory/3124-9-0x0000000002260000-0x0000000002C60000-memory.dmp

memory/4624-11-0x00000000028C0000-0x00000000028C6000-memory.dmp

memory/2648-13-0x00000000009C0000-0x00000000009C6000-memory.dmp

memory/4624-14-0x00000000028C0000-0x00000000028C6000-memory.dmp