Malware Analysis Report

2025-01-19 07:32

Sample ID 231103-ms1leage7t
Target NEAS.7711035af11e3c5d726ca112f7c92c30.exe
SHA256 b1d72024b0edee84a5735fd7af05b3381e292227595aa4bca69975c55c7cee52
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

b1d72024b0edee84a5735fd7af05b3381e292227595aa4bca69975c55c7cee52

Threat Level: Known bad

The file NEAS.7711035af11e3c5d726ca112f7c92c30.exe was found to be: Known bad.

Malicious Activity Summary

tinba banker persistence trojan

Tinba / TinyBanker

Adds Run key to start application

Unsigned PE

Suspicious use of SendNotifyMessage

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of FindShellTrayWindow

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-11-03 10:44

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-11-03 10:44

Reported

2023-11-03 10:49

Platform

win7-20231023-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-1-5-21-2085049433-1067986815-1244098655-1000\Software\Microsoft\Windows\CurrentVersion\Run\08B22BC3 = "C:\\Users\\Admin\\AppData\\Roaming\\08B22BC3\\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 behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A 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:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A

Suspicious use of SendNotifyMessage

Description Indicator Process Target
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A

Processes

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:\Windows\system32\Dwm.exe

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

C:\Windows\system32\taskhost.exe

"taskhost.exe"

C:\Users\Admin\AppData\Local\Temp\NEAS.7711035af11e3c5d726ca112f7c92c30.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.7711035af11e3c5d726ca112f7c92c30.exe"

C:\Windows\SysWOW64\winver.exe

winver

Network

Country Destination Domain Proto
US 8.8.8.8:53 insamertojertoq.cc udp
US 8.8.8.8:53 yxjsibeugmmj.com udp
US 216.218.185.162:80 yxjsibeugmmj.com tcp

Files

memory/2428-0-0x0000000000230000-0x0000000000232000-memory.dmp

memory/2428-2-0x00000000026C0000-0x00000000030C0000-memory.dmp

memory/2432-4-0x0000000000100000-0x0000000000106000-memory.dmp

memory/2432-6-0x000000007711F000-0x0000000077120000-memory.dmp

memory/1220-8-0x0000000002620000-0x0000000002626000-memory.dmp

memory/2432-9-0x000000007711F000-0x0000000077121000-memory.dmp

memory/2432-10-0x0000000077120000-0x0000000077121000-memory.dmp

memory/2432-5-0x0000000000100000-0x0000000000106000-memory.dmp

memory/1220-11-0x0000000076F71000-0x0000000076F72000-memory.dmp

memory/1220-3-0x0000000002620000-0x0000000002626000-memory.dmp

memory/1220-1-0x0000000002620000-0x0000000002626000-memory.dmp

memory/2432-12-0x00000000001A0000-0x00000000001B6000-memory.dmp

memory/2432-13-0x0000000000140000-0x0000000000141000-memory.dmp

memory/2432-14-0x0000000000150000-0x0000000000151000-memory.dmp

memory/2428-15-0x0000000000400000-0x000000000041D000-memory.dmp

memory/2428-16-0x00000000026C0000-0x00000000030C0000-memory.dmp

memory/1120-18-0x00000000002D0000-0x00000000002D6000-memory.dmp

memory/1120-21-0x00000000002D0000-0x00000000002D6000-memory.dmp

memory/1120-23-0x0000000076F71000-0x0000000076F72000-memory.dmp

memory/1184-22-0x00000000001A0000-0x00000000001A6000-memory.dmp

memory/1184-26-0x00000000001A0000-0x00000000001A6000-memory.dmp

memory/1220-27-0x00000000026A0000-0x00000000026A6000-memory.dmp

memory/1220-30-0x00000000026A0000-0x00000000026A6000-memory.dmp

memory/1304-29-0x0000000001C50000-0x0000000001C56000-memory.dmp

memory/1304-31-0x0000000076F71000-0x0000000076F72000-memory.dmp

memory/1304-32-0x0000000001C50000-0x0000000001C56000-memory.dmp

memory/2432-33-0x0000000000100000-0x0000000000106000-memory.dmp

memory/1220-38-0x0000000077100000-0x0000000077101000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-11-03 10:44

Reported

2023-11-03 10:49

Platform

win10v2004-20231025-en

Max time kernel

28s

Max time network

63s

Command Line

C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc

Signatures

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 FindShellTrayWindow

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

Processes

C:\Windows\system32\svchost.exe

C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Windows\system32\taskhostw.exe

taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}

C:\Windows\system32\sihost.exe

sihost.exe

C:\Users\Admin\AppData\Local\Temp\NEAS.7711035af11e3c5d726ca112f7c92c30.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.7711035af11e3c5d726ca112f7c92c30.exe"

C:\Windows\SysWOW64\winver.exe

winver

Network

Country Destination Domain Proto
US 8.8.8.8:53 67.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 2.136.104.51.in-addr.arpa udp
US 8.8.8.8:53 insamertojertoq.cc udp
US 8.8.8.8:53 254.178.238.8.in-addr.arpa udp

Files

memory/3256-0-0x00000000009D0000-0x00000000009D2000-memory.dmp

memory/3332-1-0x0000000001310000-0x0000000001316000-memory.dmp

memory/3332-3-0x0000000001310000-0x0000000001316000-memory.dmp

memory/1332-4-0x0000000002AE0000-0x0000000002AE6000-memory.dmp

memory/1332-2-0x0000000002AE0000-0x0000000002AE6000-memory.dmp

memory/3256-5-0x00000000027A0000-0x00000000031A0000-memory.dmp

memory/3332-8-0x00007FFD8200D000-0x00007FFD8200E000-memory.dmp

memory/1332-7-0x0000000076F32000-0x0000000076F33000-memory.dmp

memory/1332-6-0x0000000002AE0000-0x0000000002AE6000-memory.dmp

memory/1332-9-0x0000000000D70000-0x0000000000D82000-memory.dmp

memory/3256-10-0x0000000000400000-0x000000000041D000-memory.dmp

memory/2780-11-0x00000000008D0000-0x00000000008D6000-memory.dmp

memory/3256-13-0x00000000027A0000-0x00000000031A0000-memory.dmp

memory/2876-14-0x0000000000210000-0x0000000000216000-memory.dmp

memory/2780-15-0x00000000008D0000-0x00000000008D6000-memory.dmp

memory/2816-12-0x0000000000380000-0x0000000000386000-memory.dmp

memory/3332-17-0x0000000001300000-0x0000000001306000-memory.dmp

memory/3332-20-0x0000000001300000-0x0000000001306000-memory.dmp