Malware Analysis Report

2025-01-19 07:39

Sample ID 241119-vdv2dayhkj
Target 6a47dec02ded67e43ac7ca1be4314a42d7c890a2baffddfc4c7b0a303ea5efd4N.exe
SHA256 6a47dec02ded67e43ac7ca1be4314a42d7c890a2baffddfc4c7b0a303ea5efd4
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: 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

6a47dec02ded67e43ac7ca1be4314a42d7c890a2baffddfc4c7b0a303ea5efd4

Threat Level: Known bad

The file 6a47dec02ded67e43ac7ca1be4314a42d7c890a2baffddfc4c7b0a303ea5efd4N.exe was found to be: Known bad.

Malicious Activity Summary

tinba banker discovery persistence trojan upx

Tinba family

Tinba / TinyBanker

Adds Run key to start application

UPX packed file

Program crash

System Location Discovery: System Language Discovery

Unsigned PE

Modifies registry class

Suspicious behavior: EnumeratesProcesses

Suspicious use of UnmapMainImage

Suspicious use of WriteProcessMemory

Suspicious use of FindShellTrayWindow

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-19 16:52

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: behavioral2

Detonation Overview

Submitted

2024-11-19 16:52

Reported

2024-11-19 16:54

Platform

win10v2004-20241007-en

Max time kernel

118s

Max time network

96s

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\EFB4D92D = "C:\\Users\\Admin\\AppData\\Roaming\\EFB4D92D\\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:\Windows\SysWOW64\winver.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\6a47dec02ded67e43ac7ca1be4314a42d7c890a2baffddfc4c7b0a303ea5efd4N.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

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\6a47dec02ded67e43ac7ca1be4314a42d7c890a2baffddfc4c7b0a303ea5efd4N.exe

"C:\Users\Admin\AppData\Local\Temp\6a47dec02ded67e43ac7ca1be4314a42d7c890a2baffddfc4c7b0a303ea5efd4N.exe"

C:\Windows\SysWOW64\winver.exe

winver

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 952 -ip 952

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 952 -s 356

Network

Country Destination Domain Proto
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 134.130.81.91.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp

Files

memory/3856-0-0x0000000000400000-0x000000000041D000-memory.dmp

memory/3856-1-0x00000000004A0000-0x00000000004A1000-memory.dmp

memory/3444-3-0x0000000000360000-0x0000000000366000-memory.dmp

memory/3444-2-0x0000000000360000-0x0000000000366000-memory.dmp

memory/952-5-0x0000000077902000-0x0000000077903000-memory.dmp

memory/3444-6-0x00007FFF666AD000-0x00007FFF666AE000-memory.dmp

memory/3856-4-0x0000000002200000-0x0000000002C00000-memory.dmp

memory/952-7-0x00007FFF66610000-0x00007FFF66805000-memory.dmp

memory/3444-8-0x00007FFF66840000-0x00007FFF66841000-memory.dmp

memory/3856-10-0x0000000000400000-0x000000000041D000-memory.dmp

memory/3856-11-0x0000000002200000-0x0000000002C00000-memory.dmp

memory/3444-12-0x00007FFF66820000-0x00007FFF66821000-memory.dmp

memory/952-14-0x0000000001470000-0x0000000001476000-memory.dmp

memory/2940-16-0x0000000000E40000-0x0000000000E46000-memory.dmp

memory/952-17-0x0000000001470000-0x0000000001476000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-19 16:52

Reported

2024-11-19 16:55

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\C4BAF513 = "C:\\Users\\Admin\\AppData\\Roaming\\C4BAF513\\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\6a47dec02ded67e43ac7ca1be4314a42d7c890a2baffddfc4c7b0a303ea5efd4N.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\6a47dec02ded67e43ac7ca1be4314a42d7c890a2baffddfc4c7b0a303ea5efd4N.exe

"C:\Users\Admin\AppData\Local\Temp\6a47dec02ded67e43ac7ca1be4314a42d7c890a2baffddfc4c7b0a303ea5efd4N.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/2536-0-0x0000000000400000-0x000000000041D000-memory.dmp

memory/2536-1-0x0000000000020000-0x0000000000021000-memory.dmp

memory/1192-3-0x0000000002A20000-0x0000000002A26000-memory.dmp

memory/1192-4-0x0000000002A20000-0x0000000002A26000-memory.dmp

memory/1192-2-0x0000000002A20000-0x0000000002A26000-memory.dmp

memory/2536-5-0x0000000001D80000-0x0000000002780000-memory.dmp

memory/2236-11-0x0000000077310000-0x00000000774B9000-memory.dmp

memory/1192-10-0x0000000077361000-0x0000000077362000-memory.dmp

memory/2236-9-0x000000007750F000-0x0000000077511000-memory.dmp

memory/2236-8-0x000000007750F000-0x0000000077510000-memory.dmp

memory/2236-7-0x0000000077510000-0x0000000077511000-memory.dmp

memory/2236-6-0x0000000000150000-0x0000000000156000-memory.dmp

memory/2536-12-0x0000000000400000-0x000000000041D000-memory.dmp

memory/2536-13-0x0000000001D80000-0x0000000002780000-memory.dmp

memory/1192-21-0x00000000021D0000-0x00000000021D6000-memory.dmp

memory/1168-19-0x0000000001C30000-0x0000000001C36000-memory.dmp

memory/1108-22-0x0000000001B00000-0x0000000001B06000-memory.dmp

memory/1592-30-0x0000000077361000-0x0000000077362000-memory.dmp

memory/1592-29-0x0000000001D60000-0x0000000001D66000-memory.dmp

memory/1592-27-0x0000000001D60000-0x0000000001D66000-memory.dmp

memory/1168-24-0x0000000001C30000-0x0000000001C36000-memory.dmp

memory/1108-23-0x0000000077361000-0x0000000077362000-memory.dmp

memory/1192-28-0x00000000021D0000-0x00000000021D6000-memory.dmp