Malware Analysis Report

2024-09-09 17:08

Sample ID 240707-dwq2psvdje
Target c6176e81e5947895d0d1edcf7c9cbc3e9a0222111348e07f8a2e2cd0a4063c70
SHA256 c6176e81e5947895d0d1edcf7c9cbc3e9a0222111348e07f8a2e2cd0a4063c70
Tags
upx 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

c6176e81e5947895d0d1edcf7c9cbc3e9a0222111348e07f8a2e2cd0a4063c70

Threat Level: Known bad

The file c6176e81e5947895d0d1edcf7c9cbc3e9a0222111348e07f8a2e2cd0a4063c70 was found to be: Known bad.

Malicious Activity Summary

upx tinba banker persistence trojan

Tinba / TinyBanker

UPX packed file

Adds Run key to start application

Unsigned PE

Program crash

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of UnmapMainImage

MITRE ATT&CK Matrix V13

Analysis: static1

Detonation Overview

Reported

2024-07-07 03:21

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: behavioral1

Detonation Overview

Submitted

2024-07-07 03:21

Reported

2024-07-07 03:26

Platform

win7-20240704-en

Max time kernel

149s

Max time network

147s

Command Line

"C:\Windows\system32\Dwm.exe"

Signatures

Tinba / TinyBanker

trojan banker tinba

UPX packed file

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3450744190-3404161390-554719085-1000\Software\Microsoft\Windows\CurrentVersion\Run\D03DA51F = "C:\\Users\\Admin\\AppData\\Roaming\\D03DA51F\\bin.exe" 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
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\Dwm.exe

"C:\Windows\system32\Dwm.exe"

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Windows\system32\taskhost.exe

"taskhost.exe"

C:\Windows\system32\DllHost.exe

C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}

C:\Users\Admin\AppData\Local\Temp\c6176e81e5947895d0d1edcf7c9cbc3e9a0222111348e07f8a2e2cd0a4063c70.exe

"C:\Users\Admin\AppData\Local\Temp\c6176e81e5947895d0d1edcf7c9cbc3e9a0222111348e07f8a2e2cd0a4063c70.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
US 8.8.8.8:53 uyhgqunqkxnx.pw udp
US 104.131.68.180:80 uyhgqunqkxnx.pw tcp
US 8.8.8.8:53 vcklmnnejwxx.pw udp
US 216.218.185.162:80 vcklmnnejwxx.pw tcp
US 8.8.8.8:53 cmnsgscccrej.pw udp
US 216.218.185.162:80 cmnsgscccrej.pw tcp

Files

memory/2232-0-0x0000000000400000-0x000000000041D000-memory.dmp

memory/2232-1-0x0000000000020000-0x0000000000021000-memory.dmp

memory/1056-4-0x0000000002520000-0x0000000002526000-memory.dmp

memory/1056-3-0x0000000002520000-0x0000000002526000-memory.dmp

memory/1056-2-0x0000000002520000-0x0000000002526000-memory.dmp

memory/2232-5-0x0000000001F30000-0x0000000002930000-memory.dmp

memory/2332-6-0x0000000000120000-0x0000000000126000-memory.dmp

memory/2332-7-0x0000000077B50000-0x0000000077B51000-memory.dmp

memory/2332-8-0x0000000077B4F000-0x0000000077B50000-memory.dmp

memory/2332-9-0x0000000077B4F000-0x0000000077B51000-memory.dmp

memory/1056-10-0x00000000779A1000-0x00000000779A2000-memory.dmp

memory/2332-11-0x0000000077950000-0x0000000077AF9000-memory.dmp

memory/2232-12-0x0000000000400000-0x000000000041D000-memory.dmp

memory/2232-13-0x0000000001F30000-0x0000000002930000-memory.dmp

memory/1356-25-0x00000000023C0000-0x00000000023C6000-memory.dmp

memory/1100-23-0x0000000001F90000-0x0000000001F96000-memory.dmp

memory/1056-20-0x00000000024C0000-0x00000000024C6000-memory.dmp

memory/1032-27-0x00000000779A1000-0x00000000779A2000-memory.dmp

memory/1056-28-0x00000000024C0000-0x00000000024C6000-memory.dmp

memory/1100-29-0x0000000001F90000-0x0000000001F96000-memory.dmp

memory/1032-26-0x0000000001F90000-0x0000000001F96000-memory.dmp

memory/1356-30-0x00000000023C0000-0x00000000023C6000-memory.dmp

memory/1356-31-0x00000000779A1000-0x00000000779A2000-memory.dmp

memory/2332-36-0x0000000000120000-0x0000000000126000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-07 03:21

Reported

2024-07-07 03:26

Platform

win10v2004-20240704-en

Max time kernel

149s

Max time network

102s

Command Line

sihost.exe

Signatures

Tinba / TinyBanker

trojan banker tinba

UPX packed file

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2753856825-3907105642-1818461144-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\A71A3B5D = "C:\\Users\\Admin\\AppData\\Roaming\\A71A3B5D\\bin.exe" C:\Windows\SysWOW64\winver.exe N/A

Program crash

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

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

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\winver.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\c6176e81e5947895d0d1edcf7c9cbc3e9a0222111348e07f8a2e2cd0a4063c70.exe

"C:\Users\Admin\AppData\Local\Temp\c6176e81e5947895d0d1edcf7c9cbc3e9a0222111348e07f8a2e2cd0a4063c70.exe"

C:\Windows\SysWOW64\winver.exe

winver

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4344 -ip 4344

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4344 -s 352

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 13.107.21.237:443 g.bing.com tcp
US 8.8.8.8:53 237.21.107.13.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 22.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 192.142.123.92.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp

Files

memory/5080-0-0x0000000000400000-0x000000000041D000-memory.dmp

memory/5080-1-0x00000000005B0000-0x00000000005B1000-memory.dmp

memory/3408-2-0x0000000002540000-0x0000000002546000-memory.dmp

memory/3408-3-0x0000000002540000-0x0000000002546000-memory.dmp

memory/5080-4-0x0000000002440000-0x0000000002E40000-memory.dmp

memory/3408-6-0x00007FFD862CD000-0x00007FFD862CE000-memory.dmp

memory/4344-5-0x00000000778F2000-0x00000000778F3000-memory.dmp

memory/4344-7-0x00007FFD86230000-0x00007FFD86425000-memory.dmp

memory/5080-9-0x0000000000400000-0x000000000041D000-memory.dmp

memory/5080-10-0x0000000002440000-0x0000000002E40000-memory.dmp

memory/3408-11-0x00007FFD86460000-0x00007FFD86461000-memory.dmp

memory/4344-13-0x00000000024E0000-0x00000000024E6000-memory.dmp

memory/2640-15-0x00000000009B0000-0x00000000009B6000-memory.dmp

memory/4344-16-0x00000000024E0000-0x00000000024E6000-memory.dmp