Malware Analysis Report

2025-01-19 07:39

Sample ID 241120-a8z9csxdmj
Target 5a286d50400f87b087da17dcd123ad1115819e7ee8fc116fe0d7326d256f849a.exe
SHA256 5a286d50400f87b087da17dcd123ad1115819e7ee8fc116fe0d7326d256f849a
Tags
upx 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

5a286d50400f87b087da17dcd123ad1115819e7ee8fc116fe0d7326d256f849a

Threat Level: Known bad

The file 5a286d50400f87b087da17dcd123ad1115819e7ee8fc116fe0d7326d256f849a.exe was found to be: Known bad.

Malicious Activity Summary

upx tinba banker discovery persistence trojan

Tinba family

Tinba / TinyBanker

Adds Run key to start application

UPX packed file

Unsigned PE

System Location Discovery: System Language Discovery

Program crash

Suspicious behavior: EnumeratesProcesses

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious use of UnmapMainImage

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-20 00:53

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
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-20 00:53

Reported

2024-11-20 00:55

Platform

win7-20241010-en

Max time kernel

119s

Max time network

124s

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-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\B68C17FA = "C:\\Users\\Admin\\AppData\\Roaming\\B68C17FA\\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:\Users\Admin\AppData\Local\Temp\5a286d50400f87b087da17dcd123ad1115819e7ee8fc116fe0d7326d256f849a.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\5a286d50400f87b087da17dcd123ad1115819e7ee8fc116fe0d7326d256f849a.exe

"C:\Users\Admin\AppData\Local\Temp\5a286d50400f87b087da17dcd123ad1115819e7ee8fc116fe0d7326d256f849a.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/564-0-0x0000000000400000-0x000000000041D000-memory.dmp

memory/564-1-0x0000000000020000-0x0000000000021000-memory.dmp

memory/1180-3-0x0000000002780000-0x0000000002786000-memory.dmp

memory/1180-4-0x0000000002780000-0x0000000002786000-memory.dmp

memory/1180-2-0x0000000002780000-0x0000000002786000-memory.dmp

memory/564-5-0x0000000001CB0000-0x00000000026B0000-memory.dmp

memory/1396-11-0x0000000077B30000-0x0000000077CD9000-memory.dmp

memory/1180-10-0x0000000077B81000-0x0000000077B82000-memory.dmp

memory/1396-9-0x0000000077D2F000-0x0000000077D31000-memory.dmp

memory/1396-8-0x0000000077D2F000-0x0000000077D30000-memory.dmp

memory/1396-7-0x0000000077D30000-0x0000000077D31000-memory.dmp

memory/1396-6-0x0000000000090000-0x0000000000096000-memory.dmp

memory/564-13-0x0000000000400000-0x000000000041D000-memory.dmp

memory/564-14-0x0000000001CB0000-0x00000000026B0000-memory.dmp

memory/952-27-0x0000000001ED0000-0x0000000001ED6000-memory.dmp

memory/1180-24-0x00000000026B0000-0x00000000026B6000-memory.dmp

memory/1156-22-0x00000000001A0000-0x00000000001A6000-memory.dmp

memory/952-34-0x0000000001ED0000-0x0000000001ED6000-memory.dmp

memory/952-35-0x0000000077B81000-0x0000000077B82000-memory.dmp

memory/1180-33-0x00000000026B0000-0x00000000026B6000-memory.dmp

memory/1396-32-0x0000000000090000-0x0000000000096000-memory.dmp

memory/1156-31-0x00000000001A0000-0x00000000001A6000-memory.dmp

memory/1156-30-0x0000000077B81000-0x0000000077B82000-memory.dmp

memory/1084-29-0x0000000077B81000-0x0000000077B82000-memory.dmp

memory/1084-28-0x00000000002D0000-0x00000000002D6000-memory.dmp

memory/1156-37-0x00000000001A0000-0x00000000001A6000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-20 00:53

Reported

2024-11-20 00:55

Platform

win10v2004-20241007-en

Max time kernel

118s

Max time network

93s

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-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\F254152A = "C:\\Users\\Admin\\AppData\\Roaming\\F254152A\\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\5a286d50400f87b087da17dcd123ad1115819e7ee8fc116fe0d7326d256f849a.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\5a286d50400f87b087da17dcd123ad1115819e7ee8fc116fe0d7326d256f849a.exe

"C:\Users\Admin\AppData\Local\Temp\5a286d50400f87b087da17dcd123ad1115819e7ee8fc116fe0d7326d256f849a.exe"

C:\Windows\SysWOW64\winver.exe

winver

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1876 -ip 1876

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1876 -s 352

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 200.163.202.172.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 29.243.111.52.in-addr.arpa udp

Files

memory/2496-0-0x0000000000400000-0x000000000041D000-memory.dmp

memory/3452-2-0x0000000001260000-0x0000000001266000-memory.dmp

memory/3452-3-0x0000000001260000-0x0000000001266000-memory.dmp

memory/2496-1-0x00000000005B0000-0x00000000005B1000-memory.dmp

memory/3452-7-0x00007FF9FC9AC000-0x00007FF9FC9AD000-memory.dmp

memory/3452-6-0x00007FF9FC9AD000-0x00007FF9FC9AE000-memory.dmp

memory/1876-5-0x0000000077652000-0x0000000077653000-memory.dmp

memory/2496-4-0x0000000002240000-0x0000000002C40000-memory.dmp

memory/1876-8-0x00007FF9FC910000-0x00007FF9FCB05000-memory.dmp

memory/2496-10-0x0000000000400000-0x000000000041D000-memory.dmp

memory/2496-11-0x0000000002240000-0x0000000002C40000-memory.dmp

memory/3452-12-0x00007FF9FCB40000-0x00007FF9FCB41000-memory.dmp

memory/1876-14-0x0000000000A60000-0x0000000000A66000-memory.dmp

memory/2668-16-0x0000000000CE0000-0x0000000000CE6000-memory.dmp

memory/1876-17-0x0000000000A60000-0x0000000000A66000-memory.dmp