Malware Analysis Report

2024-09-09 17:08

Sample ID 240718-1lay3a1cmd
Target 11075ee45fb5c2a2646dbaa03719dd50N.exe
SHA256 6e08236e7841a48248e7f86cbb71dd1f2a32c049f9233a296d7866bffb959eb9
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

6e08236e7841a48248e7f86cbb71dd1f2a32c049f9233a296d7866bffb959eb9

Threat Level: Known bad

The file 11075ee45fb5c2a2646dbaa03719dd50N.exe was found to be: Known bad.

Malicious Activity Summary

tinba banker persistence trojan

Tinba / TinyBanker

Adds Run key to start application

Enumerates physical storage devices

Unsigned PE

Program crash

Suspicious use of UnmapMainImage

Suspicious use of FindShellTrayWindow

Modifies data under HKEY_USERS

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK Matrix V13

Analysis: static1

Detonation Overview

Reported

2024-07-18 21:43

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-18 21:43

Reported

2024-07-18 21:45

Platform

win7-20240704-en

Max time kernel

118s

Max time network

119s

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-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Windows\CurrentVersion\Run\C81059F2 = "C:\\Users\\Admin\\AppData\\Roaming\\C81059F2\\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
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\11075ee45fb5c2a2646dbaa03719dd50N.exe

"C:\Users\Admin\AppData\Local\Temp\11075ee45fb5c2a2646dbaa03719dd50N.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/1176-6-0x00000000024A0000-0x00000000024A6000-memory.dmp

memory/2896-4-0x0000000000170000-0x0000000000176000-memory.dmp

memory/1176-3-0x00000000024A0000-0x00000000024A6000-memory.dmp

memory/1176-1-0x00000000024A0000-0x00000000024A6000-memory.dmp

memory/2896-23-0x00000000003F0000-0x00000000003F6000-memory.dmp

memory/2036-18-0x0000000001E60000-0x0000000001E66000-memory.dmp

memory/1176-15-0x00000000024F0000-0x00000000024F6000-memory.dmp

memory/1124-12-0x0000000001DA0000-0x0000000001DA6000-memory.dmp

memory/1048-9-0x0000000000160000-0x0000000000166000-memory.dmp

memory/1648-25-0x0000000000400000-0x000000000043C000-memory.dmp

memory/1048-29-0x0000000000160000-0x0000000000166000-memory.dmp

memory/1124-28-0x0000000001DA0000-0x0000000001DA6000-memory.dmp

memory/1176-27-0x00000000024F0000-0x00000000024F6000-memory.dmp

memory/2036-26-0x0000000001E60000-0x0000000001E66000-memory.dmp

memory/2896-31-0x00000000003F0000-0x00000000003F6000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-18 21:43

Reported

2024-07-18 21:45

Platform

win10v2004-20240709-en

Max time kernel

118s

Max time network

108s

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\11075ee45fb5c2a2646dbaa03719dd50N.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\11075ee45fb5c2a2646dbaa03719dd50N.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\11075ee45fb5c2a2646dbaa03719dd50N.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\11075ee45fb5c2a2646dbaa03719dd50N.exe

"C:\Users\Admin\AppData\Local\Temp\11075ee45fb5c2a2646dbaa03719dd50N.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 412 -p 3556 -ip 3556

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3556 -s 300

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 1396 -ip 1396

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1396 -s 992

Network

Country Destination Domain Proto
US 8.8.8.8:53 75.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 21.58.20.217.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 35.56.20.217.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp

Files

memory/1396-1-0x0000000004540000-0x0000000004B98000-memory.dmp

memory/1396-2-0x0000000003DD0000-0x0000000003DD1000-memory.dmp

memory/3448-4-0x0000000000D40000-0x0000000000D46000-memory.dmp

memory/3448-5-0x0000000000D40000-0x0000000000D46000-memory.dmp

memory/1396-6-0x0000000000400000-0x000000000043C000-memory.dmp

memory/3448-11-0x0000000002C90000-0x0000000002C96000-memory.dmp

memory/1396-10-0x0000000005750000-0x0000000006150000-memory.dmp

memory/1044-13-0x0000000000B90000-0x0000000000B96000-memory.dmp

memory/1396-14-0x0000000005750000-0x0000000006150000-memory.dmp

memory/1396-18-0x0000000004540000-0x0000000004B98000-memory.dmp

memory/1044-19-0x0000000000B90000-0x0000000000B96000-memory.dmp