Malware Analysis Report

2024-10-19 13:24

Sample ID 240825-e8ae6awfqq
Target 796718d4222db5e288697a63a470a690N.exe
SHA256 632b27fe3a9bc7b175978598fbe81d6b91eb9f74d64c8464398599cb4c9f55ec
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

632b27fe3a9bc7b175978598fbe81d6b91eb9f74d64c8464398599cb4c9f55ec

Threat Level: Known bad

The file 796718d4222db5e288697a63a470a690N.exe was found to be: Known bad.

Malicious Activity Summary

tinba banker discovery persistence trojan

Tinba / TinyBanker

Adds Run key to start application

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Unsigned PE

Program crash

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Modifies data under HKEY_USERS

Suspicious use of UnmapMainImage

Suspicious use of FindShellTrayWindow

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-25 04:36

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-25 04:36

Reported

2024-08-25 04:38

Platform

win7-20240705-en

Max time kernel

119s

Max time network

117s

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-1-5-21-3502430532-24693940-2469786940-1000\Software\Microsoft\Windows\CurrentVersion\Run\C6CCF52F = "C:\\Users\\Admin\\AppData\\Roaming\\C6CCF52F\\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\796718d4222db5e288697a63a470a690N.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

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\796718d4222db5e288697a63a470a690N.exe

"C:\Users\Admin\AppData\Local\Temp\796718d4222db5e288697a63a470a690N.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
US 8.8.8.8:53 ljjskttqximu.com udp
US 8.8.8.8:53 ljjskttqximu.net udp
US 8.8.8.8:53 ljjskttqximu.in udp
US 216.218.185.162:80 ljjskttqximu.in tcp
US 8.8.8.8:53 ljjskttqximu.ru udp
US 162.249.66.138:80 ljjskttqximu.ru tcp
US 8.8.8.8:53 fovcpylsiqvv.com udp
US 216.218.185.162:80 fovcpylsiqvv.com tcp
US 8.8.8.8:53 fovcpylsiqvv.net udp
US 8.8.8.8:53 fovcpylsiqvv.in udp
US 216.218.185.162:80 fovcpylsiqvv.in tcp
US 8.8.8.8:53 fovcpylsiqvv.ru udp
US 8.8.8.8:53 ptuvwkjgwleu.com udp
US 8.8.8.8:53 ptuvwkjgwleu.net udp
US 8.8.8.8:53 ptuvwkjgwleu.in udp
US 216.218.185.162:80 ptuvwkjgwleu.in tcp

Files

memory/1204-1-0x0000000002120000-0x0000000002126000-memory.dmp

memory/1204-6-0x0000000002120000-0x0000000002126000-memory.dmp

memory/2700-4-0x00000000000F0000-0x00000000000F6000-memory.dmp

memory/1204-3-0x0000000002120000-0x0000000002126000-memory.dmp

memory/976-8-0x0000000000400000-0x000000000043C000-memory.dmp

memory/2700-23-0x0000000000290000-0x0000000000296000-memory.dmp

memory/1088-20-0x0000000001DF0000-0x0000000001DF6000-memory.dmp

memory/1204-17-0x00000000025F0000-0x00000000025F6000-memory.dmp

memory/1164-14-0x00000000002B0000-0x00000000002B6000-memory.dmp

memory/1104-11-0x0000000002170000-0x0000000002176000-memory.dmp

memory/1104-27-0x0000000002170000-0x0000000002176000-memory.dmp

memory/1088-26-0x0000000001DF0000-0x0000000001DF6000-memory.dmp

memory/1204-25-0x00000000025F0000-0x00000000025F6000-memory.dmp

memory/1164-24-0x00000000002B0000-0x00000000002B6000-memory.dmp

memory/2700-29-0x0000000000290000-0x0000000000296000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-25 04:36

Reported

2024-08-25 04:38

Platform

win10v2004-20240802-en

Max time kernel

118s

Max time network

123s

Command Line

sihost.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:\Users\Admin\AppData\Local\Temp\796718d4222db5e288697a63a470a690N.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\winver.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

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\796718d4222db5e288697a63a470a690N.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\796718d4222db5e288697a63a470a690N.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\796718d4222db5e288697a63a470a690N.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\796718d4222db5e288697a63a470a690N.exe

"C:\Users\Admin\AppData\Local\Temp\796718d4222db5e288697a63a470a690N.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 420 -p 3508 -ip 3508

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3508 -s 300

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 2596 -ip 2596

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2596 -s 888

Network

Country Destination Domain Proto
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 150.171.28.10:443 g.bing.com tcp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 73.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 147.142.123.92.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.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 10.27.171.150.in-addr.arpa udp

Files

memory/2596-1-0x00000000046F0000-0x0000000004D48000-memory.dmp

memory/2596-2-0x0000000003E80000-0x0000000003E81000-memory.dmp

memory/2596-3-0x0000000003E80000-0x0000000003E81000-memory.dmp

memory/2596-4-0x00000000046F0000-0x0000000004D48000-memory.dmp

memory/3536-6-0x0000000002AF0000-0x0000000002AF6000-memory.dmp

memory/3536-7-0x0000000002AF0000-0x0000000002AF6000-memory.dmp

memory/2596-8-0x0000000000400000-0x000000000043C000-memory.dmp

memory/3536-13-0x0000000002B00000-0x0000000002B06000-memory.dmp

memory/2596-12-0x0000000005900000-0x0000000006300000-memory.dmp

memory/2468-15-0x0000000000980000-0x0000000000986000-memory.dmp

memory/2596-16-0x0000000005900000-0x0000000006300000-memory.dmp

memory/2596-20-0x00000000046F0000-0x0000000004D48000-memory.dmp

memory/2468-21-0x0000000000980000-0x0000000000986000-memory.dmp