Malware Analysis Report

2025-01-19 07:36

Sample ID 231105-s5np9sab28
Target NEAS.b1138707b903e85c513898e01a064030_JC.exe
SHA256 8580bca20e28c420f8fc893f4818c53e230edd078fd85f0f2652562eab9d4b1d
Tags
upx 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

8580bca20e28c420f8fc893f4818c53e230edd078fd85f0f2652562eab9d4b1d

Threat Level: Known bad

The file NEAS.b1138707b903e85c513898e01a064030_JC.exe 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

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-11-05 15:42

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

2023-11-05 15:42

Reported

2023-11-05 15:46

Platform

win7-20231025-en

Max time kernel

172s

Max time network

187s

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-1-5-21-1861898231-3446828954-4278112889-1000\Software\Microsoft\Windows\CurrentVersion\Run\C56DCFF0 = "C:\\Users\\Admin\\AppData\\Roaming\\C56DCFF0\\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

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\NEAS.b1138707b903e85c513898e01a064030_JC.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.b1138707b903e85c513898e01a064030_JC.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/2428-0-0x0000000000400000-0x000000000041D000-memory.dmp

memory/2428-1-0x0000000000020000-0x0000000000021000-memory.dmp

memory/2428-2-0x0000000001DC0000-0x00000000027C0000-memory.dmp

memory/2680-4-0x0000000000100000-0x0000000000106000-memory.dmp

memory/1256-3-0x0000000002990000-0x0000000002996000-memory.dmp

memory/2680-6-0x0000000000A40000-0x0000000000A56000-memory.dmp

memory/2680-7-0x0000000077CDF000-0x0000000077CE0000-memory.dmp

memory/1256-8-0x0000000002990000-0x0000000002996000-memory.dmp

memory/2680-10-0x0000000077CE0000-0x0000000077CE1000-memory.dmp

memory/2680-9-0x0000000077CDF000-0x0000000077CE1000-memory.dmp

memory/1256-11-0x0000000077B31000-0x0000000077B32000-memory.dmp

memory/1256-12-0x0000000077CC0000-0x0000000077CC1000-memory.dmp

memory/2428-13-0x0000000000400000-0x000000000041D000-memory.dmp

memory/2428-14-0x0000000001DC0000-0x00000000027C0000-memory.dmp

memory/2680-16-0x0000000000100000-0x0000000000106000-memory.dmp

memory/2680-17-0x00000000001C0000-0x00000000001C1000-memory.dmp

memory/1132-21-0x0000000000410000-0x0000000000416000-memory.dmp

memory/1132-23-0x0000000077B31000-0x0000000077B32000-memory.dmp

memory/1232-22-0x0000000000220000-0x0000000000226000-memory.dmp

memory/1256-26-0x00000000029E0000-0x00000000029E6000-memory.dmp

memory/1232-25-0x0000000000220000-0x0000000000226000-memory.dmp

memory/1256-27-0x00000000029E0000-0x00000000029E6000-memory.dmp

memory/2680-31-0x00000000001D0000-0x00000000001D1000-memory.dmp

memory/1256-32-0x0000000077CA0000-0x0000000077CA1000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-11-05 15:42

Reported

2023-11-05 15:45

Platform

win10v2004-20231023-en

Max time kernel

7s

Max time network

12s

Command Line

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

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-1-5-21-2231940048-779848787-2990559741-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\2BDF68C9 = "C:\\Users\\Admin\\AppData\\Roaming\\2BDF68C9\\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

Suspicious use of FindShellTrayWindow

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

Processes

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:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\NEAS.b1138707b903e85c513898e01a064030_JC.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.b1138707b903e85c513898e01a064030_JC.exe"

C:\Windows\SysWOW64\winver.exe

winver

Network

Country Destination Domain Proto
US 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 4.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp

Files

memory/4872-0-0x0000000000400000-0x000000000041D000-memory.dmp

memory/4872-1-0x00000000004B0000-0x00000000004B1000-memory.dmp

memory/3304-2-0x0000000000BE0000-0x0000000000BE6000-memory.dmp

memory/3304-3-0x0000000000BE0000-0x0000000000BE6000-memory.dmp

memory/4872-4-0x0000000002200000-0x0000000002C00000-memory.dmp

memory/3304-6-0x00007FFB9DF8D000-0x00007FFB9DF8E000-memory.dmp

memory/3744-5-0x0000000077DE2000-0x0000000077DE3000-memory.dmp

memory/3744-7-0x0000000000790000-0x0000000000796000-memory.dmp

memory/4872-8-0x0000000000400000-0x000000000041D000-memory.dmp

memory/3304-9-0x00007FFB9E120000-0x00007FFB9E121000-memory.dmp

memory/2344-13-0x00000000003A0000-0x00000000003A6000-memory.dmp

memory/2336-15-0x0000000000F60000-0x0000000000F66000-memory.dmp

memory/2460-17-0x00000000001D0000-0x00000000001D6000-memory.dmp

memory/2344-19-0x00000000003A0000-0x00000000003A6000-memory.dmp