Malware Analysis Report

2024-09-09 17:06

Sample ID 240718-dm1vjssepm
Target 56fdf685e1da12c61fc2059ee14a4750N.exe
SHA256 e473c3fc67e1df1f3e7632cb92b542c0f518d8168dbe1f312aa40ab094b247da
Tags
tinba banker persistence trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

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

e473c3fc67e1df1f3e7632cb92b542c0f518d8168dbe1f312aa40ab094b247da

Threat Level: Known bad

The file 56fdf685e1da12c61fc2059ee14a4750N.exe was found to be: Known bad.

Malicious Activity Summary

tinba banker persistence trojan

Tinba / TinyBanker

Adds Run key to start application

Program crash

Enumerates physical storage devices

Unsigned PE

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

Modifies data under HKEY_USERS

Suspicious use of AdjustPrivilegeToken

Suspicious use of UnmapMainImage

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK Matrix V13

Analysis: static1

Detonation Overview

Reported

2024-07-18 03:08

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-18 03:08

Reported

2024-07-18 03:10

Platform

win7-20240704-en

Max time kernel

120s

Max time network

123s

Command Line

"taskhost.exe"

Signatures

Tinba / TinyBanker

trojan banker tinba

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000\Software\Microsoft\Windows\CurrentVersion\Run\BBFB2BA8 = "C:\\Users\\Admin\\AppData\\Roaming\\BBFB2BA8\\bin.exe" C:\Windows\SysWOW64\winver.exe N/A

Enumerates physical storage devices

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

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\56fdf685e1da12c61fc2059ee14a4750N.exe

"C:\Users\Admin\AppData\Local\Temp\56fdf685e1da12c61fc2059ee14a4750N.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/1220-6-0x0000000002260000-0x0000000002266000-memory.dmp

memory/2692-4-0x0000000000100000-0x0000000000106000-memory.dmp

memory/1220-3-0x0000000002260000-0x0000000002266000-memory.dmp

memory/1220-1-0x0000000002260000-0x0000000002266000-memory.dmp

memory/2692-25-0x0000000000230000-0x0000000000236000-memory.dmp

memory/1612-20-0x0000000001DF0000-0x0000000001DF6000-memory.dmp

memory/1220-17-0x0000000002650000-0x0000000002656000-memory.dmp

memory/1172-14-0x0000000000330000-0x0000000000336000-memory.dmp

memory/2924-12-0x0000000000400000-0x000000000043C000-memory.dmp

memory/1116-10-0x0000000001B40000-0x0000000001B46000-memory.dmp

memory/1116-26-0x0000000001B40000-0x0000000001B46000-memory.dmp

memory/1172-29-0x0000000000330000-0x0000000000336000-memory.dmp

memory/1220-27-0x0000000002650000-0x0000000002656000-memory.dmp

memory/1612-28-0x0000000001DF0000-0x0000000001DF6000-memory.dmp

memory/2692-31-0x0000000000230000-0x0000000000236000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-18 03:08

Reported

2024-07-18 03:10

Platform

win10v2004-20240709-en

Max time kernel

118s

Max time network

96s

Command Line

sihost.exe

Signatures

Enumerates physical storage devices

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

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\56fdf685e1da12c61fc2059ee14a4750N.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\56fdf685e1da12c61fc2059ee14a4750N.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

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\56fdf685e1da12c61fc2059ee14a4750N.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\56fdf685e1da12c61fc2059ee14a4750N.exe

"C:\Users\Admin\AppData\Local\Temp\56fdf685e1da12c61fc2059ee14a4750N.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 180 -p 3424 -ip 3424

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3424 -s 300

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 3568 -ip 3568

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3568 -s 1008

Network

Country Destination Domain Proto
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 134.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.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 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
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 192.142.123.92.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp

Files

memory/3568-1-0x0000000004750000-0x0000000004DA8000-memory.dmp

memory/3568-2-0x0000000003E10000-0x0000000003E11000-memory.dmp

memory/3544-5-0x0000000000980000-0x0000000000986000-memory.dmp

memory/3544-4-0x0000000000980000-0x0000000000986000-memory.dmp

memory/3568-6-0x0000000000400000-0x000000000043C000-memory.dmp

memory/3544-10-0x00000000009B0000-0x00000000009B6000-memory.dmp

memory/3568-9-0x0000000005860000-0x0000000006260000-memory.dmp

memory/2484-13-0x00000000002E0000-0x00000000002E6000-memory.dmp

memory/3568-14-0x0000000005860000-0x0000000006260000-memory.dmp

memory/3568-18-0x0000000004750000-0x0000000004DA8000-memory.dmp

memory/2484-19-0x00000000002E0000-0x00000000002E6000-memory.dmp