Malware Analysis Report

2025-01-19 07:41

Sample ID 241106-jwdn9sxarq
Target 29a832e8425844091e3dfd5275be52729f542bb80b41517cfa6e23cef0ddf98dN
SHA256 29a832e8425844091e3dfd5275be52729f542bb80b41517cfa6e23cef0ddf98d
Tags
discovery tinba banker 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

29a832e8425844091e3dfd5275be52729f542bb80b41517cfa6e23cef0ddf98d

Threat Level: Known bad

The file 29a832e8425844091e3dfd5275be52729f542bb80b41517cfa6e23cef0ddf98dN was found to be: Known bad.

Malicious Activity Summary

discovery tinba banker persistence trojan

Tinba family

Tinba / TinyBanker

Adds Run key to start application

Unsigned PE

Enumerates physical storage devices

Program crash

System Location Discovery: System Language Discovery

Modifies registry class

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of FindShellTrayWindow

Suspicious use of AdjustPrivilegeToken

Modifies data under HKEY_USERS

Suspicious use of UnmapMainImage

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-06 08:00

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-06 08:00

Reported

2024-11-06 08:02

Platform

win10v2004-20241007-en

Max time kernel

118s

Max time network

103s

Command Line

C:\Windows\Explorer.EXE

Signatures

Enumerates physical storage devices

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\29a832e8425844091e3dfd5275be52729f542bb80b41517cfa6e23cef0ddf98dN.exe N/A

Modifies data under HKEY_USERS

Description Indicator Process Target
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@%SystemRoot%\system32\hnetcfgclient.dll,-201 = "HNetCfg Client" C:\Windows\System32\svchost.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\ C:\Windows\Explorer.EXE N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\ C:\Windows\Explorer.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

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\29a832e8425844091e3dfd5275be52729f542bb80b41517cfa6e23cef0ddf98dN.exe N/A

Suspicious use of UnmapMainImage

Description Indicator Process Target
N/A N/A C:\Windows\Explorer.EXE N/A

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\29a832e8425844091e3dfd5275be52729f542bb80b41517cfa6e23cef0ddf98dN.exe

"C:\Users\Admin\AppData\Local\Temp\29a832e8425844091e3dfd5275be52729f542bb80b41517cfa6e23cef0ddf98dN.exe"

C:\Windows\System32\svchost.exe

C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman

C:\Windows\SysWOW64\winver.exe

winver

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4420 -ip 4420

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4420 -s 300

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4496 -ip 4496

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4496 -s 876

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 g.bing.com udp
US 150.171.27.10:443 g.bing.com tcp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.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 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 212.20.149.52.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.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/4496-1-0x0000000004710000-0x0000000004D68000-memory.dmp

memory/4496-2-0x0000000003CD0000-0x0000000003CD1000-memory.dmp

memory/4496-3-0x0000000003CD0000-0x0000000003CD1000-memory.dmp

memory/4496-4-0x0000000003CD0000-0x0000000003CD1000-memory.dmp

memory/3444-7-0x0000000000E00000-0x0000000000E06000-memory.dmp

memory/3444-6-0x0000000000E00000-0x0000000000E06000-memory.dmp

memory/4496-8-0x0000000000400000-0x000000000043C000-memory.dmp

memory/3444-11-0x0000000001110000-0x0000000001116000-memory.dmp

memory/4496-14-0x0000000004710000-0x0000000004D68000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-06 08:00

Reported

2024-11-06 08:02

Platform

win7-20241010-en

Max time kernel

119s

Max time network

118s

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-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Run\CCEA1245 = "C:\\Users\\Admin\\AppData\\Roaming\\CCEA1245\\bin.exe" C:\Windows\SysWOW64\winver.exe N/A

Enumerates physical storage devices

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\29a832e8425844091e3dfd5275be52729f542bb80b41517cfa6e23cef0ddf98dN.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

Suspicious use of FindShellTrayWindow

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2428 wrote to memory of 2132 N/A C:\Users\Admin\AppData\Local\Temp\29a832e8425844091e3dfd5275be52729f542bb80b41517cfa6e23cef0ddf98dN.exe C:\Windows\SysWOW64\winver.exe
PID 2428 wrote to memory of 2132 N/A C:\Users\Admin\AppData\Local\Temp\29a832e8425844091e3dfd5275be52729f542bb80b41517cfa6e23cef0ddf98dN.exe C:\Windows\SysWOW64\winver.exe
PID 2428 wrote to memory of 2132 N/A C:\Users\Admin\AppData\Local\Temp\29a832e8425844091e3dfd5275be52729f542bb80b41517cfa6e23cef0ddf98dN.exe C:\Windows\SysWOW64\winver.exe
PID 2428 wrote to memory of 2132 N/A C:\Users\Admin\AppData\Local\Temp\29a832e8425844091e3dfd5275be52729f542bb80b41517cfa6e23cef0ddf98dN.exe C:\Windows\SysWOW64\winver.exe
PID 2428 wrote to memory of 2132 N/A C:\Users\Admin\AppData\Local\Temp\29a832e8425844091e3dfd5275be52729f542bb80b41517cfa6e23cef0ddf98dN.exe C:\Windows\SysWOW64\winver.exe
PID 2132 wrote to memory of 1196 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\Explorer.EXE
PID 2132 wrote to memory of 1108 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\system32\taskhost.exe
PID 2132 wrote to memory of 1160 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\system32\Dwm.exe
PID 2132 wrote to memory of 1196 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\Explorer.EXE
PID 2132 wrote to memory of 1596 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\system32\DllHost.exe
PID 2132 wrote to memory of 2428 N/A C:\Windows\SysWOW64\winver.exe C:\Users\Admin\AppData\Local\Temp\29a832e8425844091e3dfd5275be52729f542bb80b41517cfa6e23cef0ddf98dN.exe

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\29a832e8425844091e3dfd5275be52729f542bb80b41517cfa6e23cef0ddf98dN.exe

"C:\Users\Admin\AppData\Local\Temp\29a832e8425844091e3dfd5275be52729f542bb80b41517cfa6e23cef0ddf98dN.exe"

C:\Windows\SysWOW64\winver.exe

winver

Network

Country Destination Domain Proto
US 8.8.8.8:53 elitiorecfreetoo.cc udp
US 216.218.185.162:80 elitiorecfreetoo.cc tcp

Files

memory/1196-6-0x0000000002600000-0x0000000002606000-memory.dmp

memory/2132-4-0x0000000000120000-0x0000000000126000-memory.dmp

memory/1196-3-0x0000000002600000-0x0000000002606000-memory.dmp

memory/1196-1-0x0000000002600000-0x0000000002606000-memory.dmp

memory/1108-9-0x00000000001E0000-0x00000000001E6000-memory.dmp

memory/1160-12-0x00000000002A0000-0x00000000002A6000-memory.dmp

memory/1196-15-0x0000000002D90000-0x0000000002D96000-memory.dmp

memory/2428-25-0x0000000000400000-0x000000000043C000-memory.dmp

memory/2132-23-0x0000000000250000-0x0000000000256000-memory.dmp

memory/1596-18-0x0000000001E70000-0x0000000001E76000-memory.dmp

memory/1108-26-0x00000000001E0000-0x00000000001E6000-memory.dmp

memory/1596-29-0x0000000001E70000-0x0000000001E76000-memory.dmp

memory/1160-28-0x00000000002A0000-0x00000000002A6000-memory.dmp

memory/1196-27-0x0000000002D90000-0x0000000002D96000-memory.dmp

memory/2132-31-0x0000000000250000-0x0000000000256000-memory.dmp