Malware Analysis Report

2025-01-19 07:26

Sample ID 231104-ml5a1sab26
Target NEAS.a062d4e9b5eddaf454856b1edfb5c1b0_JC.exe
SHA256 b1f6f0947a0f12034a0262477a210edf409b4d332c6d52cda8b31b524b6f2520
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

b1f6f0947a0f12034a0262477a210edf409b4d332c6d52cda8b31b524b6f2520

Threat Level: Known bad

The file NEAS.a062d4e9b5eddaf454856b1edfb5c1b0_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: EnumeratesProcesses

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of WriteProcessMemory

Suspicious use of FindShellTrayWindow

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-11-04 10:34

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-11-04 10:34

Reported

2023-11-04 10:36

Platform

win7-20231023-en

Max time kernel

150s

Max time network

164s

Command Line

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

Signatures

Tinba / TinyBanker

trojan banker tinba

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3618187007-3650799920-3290345941-1000\Software\Microsoft\Windows\CurrentVersion\Run\EA883BFF = "C:\\Users\\Admin\\AppData\\Roaming\\EA883BFF\\bin.exe" C:\Windows\SysWOW64\winver.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1948 set thread context of 1924 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.a062d4e9b5eddaf454856b1edfb5c1b0_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.a062d4e9b5eddaf454856b1edfb5c1b0_JC.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
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe 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 SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\NEAS.a062d4e9b5eddaf454856b1edfb5c1b0_JC.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1948 wrote to memory of 1924 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.a062d4e9b5eddaf454856b1edfb5c1b0_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.a062d4e9b5eddaf454856b1edfb5c1b0_JC.exe
PID 1948 wrote to memory of 1924 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.a062d4e9b5eddaf454856b1edfb5c1b0_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.a062d4e9b5eddaf454856b1edfb5c1b0_JC.exe
PID 1948 wrote to memory of 1924 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.a062d4e9b5eddaf454856b1edfb5c1b0_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.a062d4e9b5eddaf454856b1edfb5c1b0_JC.exe
PID 1948 wrote to memory of 1924 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.a062d4e9b5eddaf454856b1edfb5c1b0_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.a062d4e9b5eddaf454856b1edfb5c1b0_JC.exe
PID 1948 wrote to memory of 1924 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.a062d4e9b5eddaf454856b1edfb5c1b0_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.a062d4e9b5eddaf454856b1edfb5c1b0_JC.exe
PID 1948 wrote to memory of 1924 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.a062d4e9b5eddaf454856b1edfb5c1b0_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.a062d4e9b5eddaf454856b1edfb5c1b0_JC.exe
PID 1948 wrote to memory of 1924 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.a062d4e9b5eddaf454856b1edfb5c1b0_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.a062d4e9b5eddaf454856b1edfb5c1b0_JC.exe
PID 1924 wrote to memory of 1728 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.a062d4e9b5eddaf454856b1edfb5c1b0_JC.exe C:\Windows\SysWOW64\winver.exe
PID 1924 wrote to memory of 1728 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.a062d4e9b5eddaf454856b1edfb5c1b0_JC.exe C:\Windows\SysWOW64\winver.exe
PID 1924 wrote to memory of 1728 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.a062d4e9b5eddaf454856b1edfb5c1b0_JC.exe C:\Windows\SysWOW64\winver.exe
PID 1924 wrote to memory of 1728 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.a062d4e9b5eddaf454856b1edfb5c1b0_JC.exe C:\Windows\SysWOW64\winver.exe
PID 1924 wrote to memory of 1728 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.a062d4e9b5eddaf454856b1edfb5c1b0_JC.exe C:\Windows\SysWOW64\winver.exe
PID 1728 wrote to memory of 1284 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\Explorer.EXE
PID 1728 wrote to memory of 1124 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\system32\taskhost.exe
PID 1728 wrote to memory of 1248 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\system32\Dwm.exe
PID 1728 wrote to memory of 1284 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\Explorer.EXE
PID 1728 wrote to memory of 1792 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\system32\DllHost.exe

Processes

C:\Windows\system32\DllHost.exe

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

C:\Users\Admin\AppData\Local\Temp\NEAS.a062d4e9b5eddaf454856b1edfb5c1b0_JC.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.a062d4e9b5eddaf454856b1edfb5c1b0_JC.exe"

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Windows\system32\Dwm.exe

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

C:\Windows\system32\taskhost.exe

"taskhost.exe"

C:\Users\Admin\AppData\Local\Temp\NEAS.a062d4e9b5eddaf454856b1edfb5c1b0_JC.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.a062d4e9b5eddaf454856b1edfb5c1b0_JC.exe"

C:\Windows\SysWOW64\winver.exe

winver

Network

Country Destination Domain Proto
US 8.8.8.8:53 recdataoneveter.cc udp
US 216.218.185.162:80 recdataoneveter.cc tcp

Files

memory/1924-2-0x0000000000400000-0x0000000000405000-memory.dmp

memory/1924-4-0x0000000000530000-0x0000000000F30000-memory.dmp

memory/1284-3-0x0000000002AD0000-0x0000000002AD6000-memory.dmp

memory/1728-5-0x0000000000140000-0x0000000000146000-memory.dmp

memory/1728-8-0x000000007763F000-0x0000000077641000-memory.dmp

memory/1728-11-0x0000000000140000-0x0000000000146000-memory.dmp

memory/1728-12-0x000000007763F000-0x0000000077640000-memory.dmp

memory/1284-13-0x0000000077491000-0x0000000077492000-memory.dmp

memory/1728-10-0x0000000077640000-0x0000000077641000-memory.dmp

memory/1728-14-0x00000000005E0000-0x00000000005F6000-memory.dmp

memory/1728-15-0x0000000000180000-0x0000000000181000-memory.dmp

memory/1284-9-0x0000000002AD0000-0x0000000002AD6000-memory.dmp

memory/1728-7-0x0000000000140000-0x0000000000146000-memory.dmp

memory/1924-18-0x0000000000530000-0x0000000000F30000-memory.dmp

memory/1248-22-0x0000000001A40000-0x0000000001A46000-memory.dmp

memory/1284-26-0x0000000002AE0000-0x0000000002AE6000-memory.dmp

memory/1124-24-0x0000000001D20000-0x0000000001D26000-memory.dmp

memory/1248-29-0x0000000001A40000-0x0000000001A46000-memory.dmp

memory/1284-32-0x0000000002AE0000-0x0000000002AE6000-memory.dmp

memory/1792-31-0x0000000000140000-0x0000000000146000-memory.dmp

memory/1124-28-0x0000000077491000-0x0000000077492000-memory.dmp

memory/1124-20-0x0000000001D20000-0x0000000001D26000-memory.dmp

memory/1792-33-0x0000000000140000-0x0000000000146000-memory.dmp

memory/1792-34-0x0000000077491000-0x0000000077492000-memory.dmp

memory/1728-36-0x0000000000140000-0x0000000000146000-memory.dmp

memory/1284-37-0x0000000077620000-0x0000000077621000-memory.dmp

memory/1728-42-0x0000000000190000-0x0000000000191000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-11-04 10:34

Reported

2023-11-04 10:36

Platform

win10v2004-20231020-en

Max time kernel

3s

Max time network

8s

Command Line

C:\Windows\Explorer.EXE

Signatures

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2576 set thread context of 4300 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.a062d4e9b5eddaf454856b1edfb5c1b0_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.a062d4e9b5eddaf454856b1edfb5c1b0_JC.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 FindShellTrayWindow

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

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\NEAS.a062d4e9b5eddaf454856b1edfb5c1b0_JC.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2576 wrote to memory of 4300 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.a062d4e9b5eddaf454856b1edfb5c1b0_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.a062d4e9b5eddaf454856b1edfb5c1b0_JC.exe
PID 2576 wrote to memory of 4300 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.a062d4e9b5eddaf454856b1edfb5c1b0_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.a062d4e9b5eddaf454856b1edfb5c1b0_JC.exe
PID 2576 wrote to memory of 4300 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.a062d4e9b5eddaf454856b1edfb5c1b0_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.a062d4e9b5eddaf454856b1edfb5c1b0_JC.exe
PID 2576 wrote to memory of 4300 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.a062d4e9b5eddaf454856b1edfb5c1b0_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.a062d4e9b5eddaf454856b1edfb5c1b0_JC.exe
PID 2576 wrote to memory of 4300 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.a062d4e9b5eddaf454856b1edfb5c1b0_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.a062d4e9b5eddaf454856b1edfb5c1b0_JC.exe
PID 2576 wrote to memory of 4300 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.a062d4e9b5eddaf454856b1edfb5c1b0_JC.exe C:\Users\Admin\AppData\Local\Temp\NEAS.a062d4e9b5eddaf454856b1edfb5c1b0_JC.exe
PID 4300 wrote to memory of 100 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.a062d4e9b5eddaf454856b1edfb5c1b0_JC.exe C:\Windows\SysWOW64\winver.exe
PID 4300 wrote to memory of 100 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.a062d4e9b5eddaf454856b1edfb5c1b0_JC.exe C:\Windows\SysWOW64\winver.exe
PID 4300 wrote to memory of 100 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.a062d4e9b5eddaf454856b1edfb5c1b0_JC.exe C:\Windows\SysWOW64\winver.exe
PID 4300 wrote to memory of 100 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.a062d4e9b5eddaf454856b1edfb5c1b0_JC.exe C:\Windows\SysWOW64\winver.exe
PID 100 wrote to memory of 3376 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\Explorer.EXE
PID 100 wrote to memory of 2440 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\system32\sihost.exe
PID 100 wrote to memory of 2448 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\system32\svchost.exe
PID 100 wrote to memory of 2640 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\system32\taskhostw.exe
PID 100 wrote to memory of 3376 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\Explorer.EXE

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Windows\system32\taskhostw.exe

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

C:\Windows\system32\svchost.exe

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

C:\Windows\system32\sihost.exe

sihost.exe

C:\Users\Admin\AppData\Local\Temp\NEAS.a062d4e9b5eddaf454856b1edfb5c1b0_JC.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.a062d4e9b5eddaf454856b1edfb5c1b0_JC.exe"

C:\Users\Admin\AppData\Local\Temp\NEAS.a062d4e9b5eddaf454856b1edfb5c1b0_JC.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.a062d4e9b5eddaf454856b1edfb5c1b0_JC.exe"

C:\Windows\SysWOW64\winver.exe

winver

Network

Country Destination Domain Proto
US 8.8.8.8:53 76.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 2.136.104.51.in-addr.arpa udp
US 8.8.8.8:53 254.211.247.8.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp

Files

memory/4300-2-0x0000000000400000-0x0000000000405000-memory.dmp

memory/3376-3-0x0000000000C20000-0x0000000000C26000-memory.dmp

memory/100-6-0x00000000014F0000-0x00000000014F6000-memory.dmp

memory/3376-5-0x0000000000C20000-0x0000000000C26000-memory.dmp

memory/100-4-0x00000000014F0000-0x00000000014F6000-memory.dmp

memory/4300-7-0x00000000005F0000-0x0000000000FF0000-memory.dmp

memory/100-8-0x00000000778F2000-0x00000000778F3000-memory.dmp

memory/3376-9-0x00007FFF9C38D000-0x00007FFF9C38E000-memory.dmp

memory/100-10-0x00000000014F0000-0x00000000014F6000-memory.dmp

memory/4300-13-0x00000000005F0000-0x0000000000FF0000-memory.dmp

memory/2448-15-0x0000000000BF0000-0x0000000000BF6000-memory.dmp

memory/2448-18-0x0000000000BF0000-0x0000000000BF6000-memory.dmp

memory/2440-16-0x00000000001C0000-0x00000000001C6000-memory.dmp

memory/2640-17-0x0000000000670000-0x0000000000676000-memory.dmp

memory/3376-19-0x0000000000CB0000-0x0000000000CB6000-memory.dmp

memory/2640-20-0x0000000000670000-0x0000000000676000-memory.dmp

memory/3740-23-0x0000000000F20000-0x0000000000F26000-memory.dmp