Malware Analysis Report

2025-01-19 07:31

Sample ID 231102-1l4alsga9z
Target NEAS.102a63f3d69562922a0f56a1c7361aa0_JC.exe
SHA256 af7f62daf3a94f233ce52d65544795d8549557dad87426ebd413fad77a650248
Tags
tinba banker persistence trojan upx
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

af7f62daf3a94f233ce52d65544795d8549557dad87426ebd413fad77a650248

Threat Level: Known bad

The file NEAS.102a63f3d69562922a0f56a1c7361aa0_JC.exe was found to be: Known bad.

Malicious Activity Summary

tinba banker persistence trojan upx

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

2023-11-02 21:45

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

2023-11-02 21:45

Reported

2023-11-03 00:17

Platform

win7-20231020-en

Max time kernel

186s

Max time network

190s

Command Line

C:\Windows\Explorer.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-1-5-21-2084844033-2744876406-2053742436-1000\Software\Microsoft\Windows\CurrentVersion\Run\4910BB42 = "C:\\Users\\Admin\\AppData\\Roaming\\4910BB42\\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\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\NEAS.102a63f3d69562922a0f56a1c7361aa0_JC.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.102a63f3d69562922a0f56a1c7361aa0_JC.exe"

C:\Windows\system32\Dwm.exe

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

C:\Windows\system32\taskhost.exe

"taskhost.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
NL 192.42.116.41:80 uyhgqunqkxnx.pw tcp
US 8.8.8.8:53 vcklmnnejwxx.pw udp
US 216.218.185.162:80 vcklmnnejwxx.pw tcp

Files

memory/2528-0-0x0000000000400000-0x000000000041D000-memory.dmp

memory/2528-1-0x0000000000020000-0x0000000000021000-memory.dmp

memory/2528-3-0x0000000001D60000-0x0000000002760000-memory.dmp

memory/2840-5-0x0000000000100000-0x0000000000106000-memory.dmp

memory/1296-4-0x0000000002A40000-0x0000000002A46000-memory.dmp

memory/2840-7-0x000000007765F000-0x0000000077660000-memory.dmp

memory/1296-6-0x0000000002A40000-0x0000000002A46000-memory.dmp

memory/1296-2-0x0000000002A40000-0x0000000002A46000-memory.dmp

memory/2840-9-0x0000000077660000-0x0000000077661000-memory.dmp

memory/2840-8-0x000000007765F000-0x0000000077661000-memory.dmp

memory/1296-10-0x00000000774B1000-0x00000000774B2000-memory.dmp

memory/2840-11-0x0000000000750000-0x0000000000766000-memory.dmp

memory/2528-12-0x0000000000400000-0x000000000041D000-memory.dmp

memory/2528-13-0x0000000001D60000-0x0000000002760000-memory.dmp

memory/2840-15-0x0000000000100000-0x0000000000106000-memory.dmp

memory/2840-16-0x0000000000140000-0x0000000000141000-memory.dmp

memory/1108-20-0x0000000001B40000-0x0000000001B46000-memory.dmp

memory/1108-21-0x00000000774B1000-0x00000000774B2000-memory.dmp

memory/2840-23-0x0000000000100000-0x0000000000106000-memory.dmp

memory/1224-25-0x00000000001B0000-0x00000000001B6000-memory.dmp

memory/1296-26-0x0000000002A50000-0x0000000002A56000-memory.dmp

memory/1296-27-0x0000000002A50000-0x0000000002A56000-memory.dmp

memory/1296-31-0x0000000077640000-0x0000000077641000-memory.dmp

memory/2840-32-0x0000000000150000-0x0000000000151000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-11-02 21:45

Reported

2023-11-03 00:18

Platform

win10v2004-20231023-en

Max time kernel

10s

Max time network

16s

Command Line

sihost.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-1-5-21-2231940048-779848787-2990559741-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\4D05C136 = "C:\\Users\\Admin\\AppData\\Roaming\\4D05C136\\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\sihost.exe

sihost.exe

C:\Windows\system32\taskhostw.exe

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

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Windows\system32\svchost.exe

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

C:\Users\Admin\AppData\Local\Temp\NEAS.102a63f3d69562922a0f56a1c7361aa0_JC.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.102a63f3d69562922a0f56a1c7361aa0_JC.exe"

C:\Windows\SysWOW64\winver.exe

winver

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 59.128.231.4.in-addr.arpa udp
US 8.8.8.8:53 254.111.26.67.in-addr.arpa udp
US 8.8.8.8:53 134.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.200:443 g.bing.com tcp

Files

memory/2440-0-0x0000000000400000-0x000000000041D000-memory.dmp

memory/2440-1-0x00000000006C0000-0x00000000006C1000-memory.dmp

memory/3292-2-0x00000000005F0000-0x00000000005F6000-memory.dmp

memory/3292-3-0x00000000005F0000-0x00000000005F6000-memory.dmp

memory/2440-4-0x0000000002420000-0x0000000002E20000-memory.dmp

memory/2208-5-0x0000000077692000-0x0000000077693000-memory.dmp

memory/3292-6-0x00007FFD416AD000-0x00007FFD416AE000-memory.dmp

memory/2208-7-0x0000000002BE0000-0x0000000002BE6000-memory.dmp

memory/2440-8-0x0000000000400000-0x000000000041D000-memory.dmp

memory/3292-9-0x00007FFD41840000-0x00007FFD41841000-memory.dmp

memory/2484-15-0x0000000000510000-0x0000000000516000-memory.dmp

memory/3292-17-0x00000000022D0000-0x00000000022D6000-memory.dmp

memory/3292-19-0x00000000022D0000-0x00000000022D6000-memory.dmp

memory/2708-20-0x00000000000A0000-0x00000000000A6000-memory.dmp

memory/3464-18-0x0000000000630000-0x0000000000636000-memory.dmp