Malware Analysis Report

2025-01-19 07:23

Sample ID 231220-r2ccdsdhar
Target cacdc72a3165f332213fc76539628cc6
SHA256 c48979b9319d89046c50b138b5f9063d03d941b39eb18f3897b00d3ad504e311
Tags
tinba banker 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

c48979b9319d89046c50b138b5f9063d03d941b39eb18f3897b00d3ad504e311

Threat Level: Known bad

The file cacdc72a3165f332213fc76539628cc6 was found to be: Known bad.

Malicious Activity Summary

tinba banker persistence trojan

Tinba / TinyBanker

Adds Run key to start application

Unsigned PE

Program crash

Suspicious use of FindShellTrayWindow

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of UnmapMainImage

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-20 14:40

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-20 14:40

Reported

2023-12-20 19:55

Platform

win7-20231215-en

Max time kernel

149s

Max time network

147s

Command Line

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

Signatures

Tinba / TinyBanker

trojan banker tinba

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\Software\Microsoft\Windows\CurrentVersion\Run\B4E33D2F = "C:\\Users\\Admin\\AppData\\Roaming\\B4E33D2F\\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:\Users\Admin\AppData\Local\Temp\cacdc72a3165f332213fc76539628cc6.exe

"C:\Users\Admin\AppData\Local\Temp\cacdc72a3165f332213fc76539628cc6.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 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
US 8.8.8.8:53 evbsdqvgmpph.pw udp
US 216.218.185.162:80 evbsdqvgmpph.pw tcp

Files

memory/2132-0-0x0000000000020000-0x0000000000021000-memory.dmp

memory/2132-2-0x0000000001C60000-0x0000000002660000-memory.dmp

memory/2156-4-0x00000000001A0000-0x00000000001A6000-memory.dmp

memory/1184-5-0x0000000002610000-0x0000000002616000-memory.dmp

memory/1184-3-0x0000000002610000-0x0000000002616000-memory.dmp

memory/1184-10-0x0000000077661000-0x0000000077662000-memory.dmp

memory/2156-9-0x0000000077810000-0x0000000077811000-memory.dmp

memory/2156-8-0x000000007780F000-0x0000000077811000-memory.dmp

memory/2156-7-0x000000007780F000-0x0000000077810000-memory.dmp

memory/2156-6-0x0000000000DC0000-0x0000000000DD6000-memory.dmp

memory/1184-1-0x0000000002610000-0x0000000002616000-memory.dmp

memory/2132-11-0x0000000000400000-0x0000000000417000-memory.dmp

memory/2132-12-0x0000000001C60000-0x0000000002660000-memory.dmp

memory/2156-15-0x00000000001E0000-0x00000000001E1000-memory.dmp

memory/2156-14-0x00000000001A0000-0x00000000001A6000-memory.dmp

memory/1160-20-0x0000000001DA0000-0x0000000001DA6000-memory.dmp

memory/1184-22-0x00000000025C0000-0x00000000025C6000-memory.dmp

memory/1184-26-0x00000000025C0000-0x00000000025C6000-memory.dmp

memory/1096-25-0x00000000001E0000-0x00000000001E6000-memory.dmp

memory/1160-24-0x0000000077661000-0x0000000077662000-memory.dmp

memory/1160-23-0x0000000001DA0000-0x0000000001DA6000-memory.dmp

memory/2156-30-0x00000000001A0000-0x00000000001A6000-memory.dmp

memory/2156-31-0x00000000001F0000-0x00000000001F1000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-20 14:40

Reported

2023-12-20 19:55

Platform

win10v2004-20231215-en

Max time kernel

149s

Max time network

150s

Command Line

C:\Windows\Explorer.EXE

Signatures

Tinba / TinyBanker

trojan banker tinba

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\40D793BB = "C:\\Users\\Admin\\AppData\\Roaming\\40D793BB\\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\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Windows\system32\sihost.exe

sihost.exe

C:\Users\Admin\AppData\Local\Temp\cacdc72a3165f332213fc76539628cc6.exe

"C:\Users\Admin\AppData\Local\Temp\cacdc72a3165f332213fc76539628cc6.exe"

C:\Windows\SysWOW64\winver.exe

winver

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4960 -ip 4960

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4960 -s 352

Network

Country Destination Domain Proto
US 8.8.8.8:53 20.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 45.19.74.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 5.179.17.96.in-addr.arpa udp
US 8.8.8.8:53 29.179.17.96.in-addr.arpa udp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 89.65.42.20.in-addr.arpa udp

Files

memory/4440-0-0x0000000002160000-0x0000000002161000-memory.dmp

memory/3556-1-0x0000000002E60000-0x0000000002E66000-memory.dmp

memory/3556-2-0x0000000002E60000-0x0000000002E66000-memory.dmp

memory/4440-3-0x00000000022D0000-0x0000000002CD0000-memory.dmp

memory/4960-4-0x00000000771C2000-0x00000000771C3000-memory.dmp

memory/3556-5-0x00007FFDAF56D000-0x00007FFDAF56E000-memory.dmp

memory/4960-6-0x0000000000CD0000-0x0000000000CD6000-memory.dmp

memory/4440-7-0x0000000000400000-0x0000000000417000-memory.dmp

memory/4440-8-0x00000000022D0000-0x0000000002CD0000-memory.dmp

memory/2612-12-0x00000000004B0000-0x00000000004B6000-memory.dmp

memory/4960-13-0x0000000000CD0000-0x0000000000CD6000-memory.dmp

memory/3556-15-0x00007FFDAF700000-0x00007FFDAF701000-memory.dmp