Malware Analysis Report

2025-01-19 07:32

Sample ID 231104-l4t3bshf27
Target NEAS.2aca00e28687922f996115616909f7c0_JC.exe
SHA256 f4b757e8005b5f35200e22084a07e7c2f73a7987fa8c785a5568d1a26fa24ab5
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

f4b757e8005b5f35200e22084a07e7c2f73a7987fa8c785a5568d1a26fa24ab5

Threat Level: Known bad

The file NEAS.2aca00e28687922f996115616909f7c0_JC.exe was found to be: Known bad.

Malicious Activity Summary

tinba banker persistence trojan

Tinba / TinyBanker

Adds Run key to start application

Suspicious use of SetThreadContext

Unsigned PE

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of FindShellTrayWindow

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-11-04 10:05

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-11-04 10:05

Reported

2023-11-04 10:16

Platform

win7-20231023-en

Max time kernel

207s

Max time network

240s

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-1-5-21-3425689832-2386927309-2650718742-1000\Software\Microsoft\Windows\CurrentVersion\Run\5952C706 = "C:\\Users\\Admin\\AppData\\Roaming\\5952C706\\bin.exe" C:\Windows\SysWOW64\winver.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2908 set thread context of 2716 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.2aca00e28687922f996115616909f7c0_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.2aca00e28687922f996115616909f7c0_JC.exe

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\NEAS.2aca00e28687922f996115616909f7c0_JC.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\NEAS.2aca00e28687922f996115616909f7c0_JC.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe 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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2908 wrote to memory of 2716 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.2aca00e28687922f996115616909f7c0_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.2aca00e28687922f996115616909f7c0_JC.exe
PID 2908 wrote to memory of 2716 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.2aca00e28687922f996115616909f7c0_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.2aca00e28687922f996115616909f7c0_JC.exe
PID 2908 wrote to memory of 2716 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.2aca00e28687922f996115616909f7c0_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.2aca00e28687922f996115616909f7c0_JC.exe
PID 2908 wrote to memory of 2716 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.2aca00e28687922f996115616909f7c0_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.2aca00e28687922f996115616909f7c0_JC.exe
PID 2908 wrote to memory of 2716 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.2aca00e28687922f996115616909f7c0_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.2aca00e28687922f996115616909f7c0_JC.exe
PID 2908 wrote to memory of 2716 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.2aca00e28687922f996115616909f7c0_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.2aca00e28687922f996115616909f7c0_JC.exe
PID 2908 wrote to memory of 2716 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.2aca00e28687922f996115616909f7c0_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.2aca00e28687922f996115616909f7c0_JC.exe
PID 2908 wrote to memory of 2716 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.2aca00e28687922f996115616909f7c0_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.2aca00e28687922f996115616909f7c0_JC.exe
PID 2716 wrote to memory of 2840 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.2aca00e28687922f996115616909f7c0_JC.exe C:\Windows\SysWOW64\winver.exe
PID 2716 wrote to memory of 2840 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.2aca00e28687922f996115616909f7c0_JC.exe C:\Windows\SysWOW64\winver.exe
PID 2716 wrote to memory of 2840 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.2aca00e28687922f996115616909f7c0_JC.exe C:\Windows\SysWOW64\winver.exe
PID 2716 wrote to memory of 2840 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.2aca00e28687922f996115616909f7c0_JC.exe C:\Windows\SysWOW64\winver.exe
PID 2716 wrote to memory of 2840 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.2aca00e28687922f996115616909f7c0_JC.exe C:\Windows\SysWOW64\winver.exe
PID 2840 wrote to memory of 1372 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\Explorer.EXE
PID 2840 wrote to memory of 1232 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\system32\taskhost.exe
PID 2840 wrote to memory of 1304 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\system32\Dwm.exe
PID 2840 wrote to memory of 1372 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\Explorer.EXE

Processes

C:\Windows\system32\taskhost.exe

"taskhost.exe"

C:\Users\Admin\AppData\Local\Temp\NEAS.2aca00e28687922f996115616909f7c0_JC.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.2aca00e28687922f996115616909f7c0_JC.exe"

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Windows\system32\Dwm.exe

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

C:\Users\Admin\AppData\Local\Temp\NEAS.2aca00e28687922f996115616909f7c0_JC.exe

C:\Users\Admin\AppData\Local\Temp\NEAS.2aca00e28687922f996115616909f7c0_JC.exe

C:\Windows\SysWOW64\winver.exe

winver

Network

Country Destination Domain Proto
US 8.8.8.8:53 newfandultimati.cc udp
US 216.218.185.162:80 newfandultimati.cc tcp
US 8.8.8.8:53 wpgvbwwxompo.com udp
US 216.218.185.162:80 wpgvbwwxompo.com tcp

Files

memory/2908-0-0x0000000000420000-0x0000000000424000-memory.dmp

memory/2716-1-0x00000000001B0000-0x00000000002AA000-memory.dmp

memory/2716-3-0x0000000000400000-0x000000000149A000-memory.dmp

memory/2716-5-0x0000000000400000-0x000000000149A000-memory.dmp

memory/2716-7-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2716-9-0x0000000000400000-0x000000000149A000-memory.dmp

memory/2716-10-0x0000000001650000-0x0000000002050000-memory.dmp

memory/2716-11-0x0000000000400000-0x0000000000404400-memory.dmp

memory/1372-13-0x0000000002210000-0x0000000002216000-memory.dmp

memory/1372-14-0x0000000002210000-0x0000000002216000-memory.dmp

memory/2840-16-0x0000000000570000-0x0000000000586000-memory.dmp

memory/2840-15-0x0000000000140000-0x0000000000146000-memory.dmp

memory/2840-19-0x0000000077C4F000-0x0000000077C50000-memory.dmp

memory/1372-17-0x0000000002210000-0x0000000002216000-memory.dmp

memory/2840-21-0x0000000077C50000-0x0000000077C51000-memory.dmp

memory/2840-20-0x0000000077C4F000-0x0000000077C51000-memory.dmp

memory/1372-22-0x0000000077AA1000-0x0000000077AA2000-memory.dmp

memory/2840-23-0x0000000000360000-0x0000000000361000-memory.dmp

memory/1232-28-0x0000000001B40000-0x0000000001B46000-memory.dmp

memory/2716-27-0x0000000001650000-0x0000000002050000-memory.dmp

memory/1232-29-0x0000000001B40000-0x0000000001B46000-memory.dmp

memory/1232-30-0x0000000077AA1000-0x0000000077AA2000-memory.dmp

memory/1304-32-0x00000000001B0000-0x00000000001B6000-memory.dmp

memory/1304-35-0x00000000001B0000-0x00000000001B6000-memory.dmp

memory/1372-36-0x00000000025D0000-0x00000000025D6000-memory.dmp

memory/1372-37-0x00000000025D0000-0x00000000025D6000-memory.dmp

memory/2840-38-0x0000000000140000-0x0000000000146000-memory.dmp

memory/2840-43-0x0000000000370000-0x0000000000371000-memory.dmp

memory/1372-44-0x0000000077C30000-0x0000000077C31000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-11-04 10:05

Reported

2023-11-04 10:15

Platform

win10v2004-20231023-en

Max time kernel

4s

Max time network

30s

Command Line

C:\Windows\Explorer.EXE

Signatures

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 5004 set thread context of 1328 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.2aca00e28687922f996115616909f7c0_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.2aca00e28687922f996115616909f7c0_JC.exe

Suspicious use of FindShellTrayWindow

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 5004 wrote to memory of 1328 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.2aca00e28687922f996115616909f7c0_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.2aca00e28687922f996115616909f7c0_JC.exe
PID 5004 wrote to memory of 1328 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.2aca00e28687922f996115616909f7c0_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.2aca00e28687922f996115616909f7c0_JC.exe
PID 5004 wrote to memory of 1328 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.2aca00e28687922f996115616909f7c0_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.2aca00e28687922f996115616909f7c0_JC.exe
PID 5004 wrote to memory of 1328 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.2aca00e28687922f996115616909f7c0_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.2aca00e28687922f996115616909f7c0_JC.exe
PID 5004 wrote to memory of 1328 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.2aca00e28687922f996115616909f7c0_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.2aca00e28687922f996115616909f7c0_JC.exe
PID 5004 wrote to memory of 1328 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.2aca00e28687922f996115616909f7c0_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.2aca00e28687922f996115616909f7c0_JC.exe
PID 5004 wrote to memory of 1328 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.2aca00e28687922f996115616909f7c0_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.2aca00e28687922f996115616909f7c0_JC.exe
PID 1328 wrote to memory of 1700 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.2aca00e28687922f996115616909f7c0_JC.exe C:\Windows\SysWOW64\winver.exe
PID 1328 wrote to memory of 1700 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.2aca00e28687922f996115616909f7c0_JC.exe C:\Windows\SysWOW64\winver.exe
PID 1328 wrote to memory of 1700 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.2aca00e28687922f996115616909f7c0_JC.exe C:\Windows\SysWOW64\winver.exe
PID 1328 wrote to memory of 1700 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.2aca00e28687922f996115616909f7c0_JC.exe C:\Windows\SysWOW64\winver.exe
PID 1700 wrote to memory of 3244 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\Explorer.EXE

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\NEAS.2aca00e28687922f996115616909f7c0_JC.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.2aca00e28687922f996115616909f7c0_JC.exe"

C:\Users\Admin\AppData\Local\Temp\NEAS.2aca00e28687922f996115616909f7c0_JC.exe

C:\Users\Admin\AppData\Local\Temp\NEAS.2aca00e28687922f996115616909f7c0_JC.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 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp

Files

memory/5004-0-0x0000000003970000-0x0000000003974000-memory.dmp

memory/1328-1-0x0000000000400000-0x000000000149A000-memory.dmp

memory/1328-5-0x00000000017A0000-0x00000000021A0000-memory.dmp

memory/1700-6-0x00000000024D0000-0x00000000024D6000-memory.dmp

memory/1700-7-0x0000000076F22000-0x0000000076F23000-memory.dmp

memory/3244-8-0x00007FF9215AD000-0x00007FF9215AE000-memory.dmp

memory/3244-2-0x0000000000E90000-0x0000000000E96000-memory.dmp

memory/3244-4-0x0000000000E90000-0x0000000000E96000-memory.dmp

memory/1700-3-0x00000000024D0000-0x00000000024D6000-memory.dmp

memory/1700-9-0x0000000000750000-0x0000000000762000-memory.dmp

memory/1700-10-0x00000000024D0000-0x00000000024D6000-memory.dmp

memory/1328-12-0x0000000000400000-0x0000000000404400-memory.dmp

memory/2860-14-0x0000000000E00000-0x0000000000E06000-memory.dmp

memory/2920-15-0x00000000005E0000-0x00000000005E6000-memory.dmp

memory/3244-17-0x0000000000EC0000-0x0000000000EC6000-memory.dmp

memory/2764-16-0x0000000000860000-0x0000000000866000-memory.dmp

memory/1328-19-0x00000000017A0000-0x00000000021A0000-memory.dmp

memory/3476-20-0x0000000000BD0000-0x0000000000BD6000-memory.dmp

memory/3664-22-0x0000000000050000-0x0000000000056000-memory.dmp