Malware Analysis Report

2025-01-19 07:28

Sample ID 231104-1c3bysfb3x
Target NEAS.c03851b17a8818c6fdb0fa7f5f0636d0_JC.exe
SHA256 9f10ece425696d8b19a65b959a0992916abf3f3587480460b819beb01dc19a3e
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

9f10ece425696d8b19a65b959a0992916abf3f3587480460b819beb01dc19a3e

Threat Level: Known bad

The file NEAS.c03851b17a8818c6fdb0fa7f5f0636d0_JC.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 behavior: EnumeratesProcesses

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-11-04 21:31

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-11-04 21:31

Reported

2023-11-04 21:33

Platform

win7-20231025-en

Max time kernel

150s

Max time network

153s

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-1-5-21-1861898231-3446828954-4278112889-1000\Software\Microsoft\Windows\CurrentVersion\Run\405DC80A = "C:\\Users\\Admin\\AppData\\Roaming\\405DC80A\\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\taskhost.exe

"taskhost.exe"

C:\Windows\system32\Dwm.exe

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

C:\Windows\system32\DllHost.exe

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

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\NEAS.c03851b17a8818c6fdb0fa7f5f0636d0_JC.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.c03851b17a8818c6fdb0fa7f5f0636d0_JC.exe"

C:\Windows\SysWOW64\winver.exe

winver

Network

Country Destination Domain Proto
US 8.8.8.8:53 brureservtestot.cc udp
US 8.8.8.8:53 qytufpscigbb.com udp
US 216.218.185.162:80 qytufpscigbb.com tcp

Files

memory/1888-1-0x0000000000400000-0x0000000000468000-memory.dmp

memory/1888-2-0x0000000000020000-0x0000000000021000-memory.dmp

memory/1888-4-0x0000000000570000-0x0000000000F70000-memory.dmp

memory/1900-6-0x0000000000140000-0x0000000000146000-memory.dmp

memory/1184-5-0x0000000002A00000-0x0000000002A06000-memory.dmp

memory/1184-3-0x0000000002A00000-0x0000000002A06000-memory.dmp

memory/1184-8-0x0000000002A00000-0x0000000002A06000-memory.dmp

memory/1900-7-0x0000000000140000-0x0000000000146000-memory.dmp

memory/1900-9-0x0000000000140000-0x0000000000146000-memory.dmp

memory/1900-10-0x0000000000410000-0x0000000000426000-memory.dmp

memory/1900-12-0x0000000077A00000-0x0000000077A01000-memory.dmp

memory/1900-13-0x00000000779FF000-0x0000000077A00000-memory.dmp

memory/1900-14-0x00000000779FF000-0x0000000077A01000-memory.dmp

memory/1184-11-0x0000000077851000-0x0000000077852000-memory.dmp

memory/1888-16-0x0000000000570000-0x0000000000F70000-memory.dmp

memory/1076-19-0x00000000002E0000-0x00000000002E6000-memory.dmp

memory/1076-22-0x00000000002E0000-0x00000000002E6000-memory.dmp

memory/1076-23-0x0000000077851000-0x0000000077852000-memory.dmp

memory/1148-24-0x00000000001A0000-0x00000000001A6000-memory.dmp

memory/1900-25-0x00000000001D0000-0x00000000001D1000-memory.dmp

memory/1148-27-0x00000000001A0000-0x00000000001A6000-memory.dmp

memory/1184-29-0x0000000002A10000-0x0000000002A16000-memory.dmp

memory/824-31-0x0000000000650000-0x0000000000656000-memory.dmp

memory/1184-32-0x0000000002A10000-0x0000000002A16000-memory.dmp

memory/824-35-0x0000000000650000-0x0000000000656000-memory.dmp

memory/1900-38-0x00000000001E0000-0x00000000001E1000-memory.dmp

memory/824-37-0x0000000077851000-0x0000000077852000-memory.dmp

memory/1900-36-0x0000000000200000-0x0000000000206000-memory.dmp

memory/1900-39-0x0000000000200000-0x0000000000206000-memory.dmp

memory/1184-41-0x00000000779E0000-0x00000000779E1000-memory.dmp

memory/1184-47-0x00000000779C0000-0x00000000779C1000-memory.dmp

memory/1184-48-0x000007FEF6020000-0x000007FEF6163000-memory.dmp

memory/1184-49-0x000007FF1ECD0000-0x000007FF1ECDA000-memory.dmp

memory/1184-50-0x000007FEF6020000-0x000007FEF6163000-memory.dmp

memory/1184-51-0x000007FF1ECD0000-0x000007FF1ECDA000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-11-04 21:31

Reported

2023-11-04 21:33

Platform

win10v2004-20231023-en

Max time kernel

9s

Max time network

14s

Command Line

C:\Windows\Explorer.EXE

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\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\NEAS.c03851b17a8818c6fdb0fa7f5f0636d0_JC.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.c03851b17a8818c6fdb0fa7f5f0636d0_JC.exe"

C:\Windows\system32\sihost.exe

sihost.exe

C:\Windows\SysWOW64\winver.exe

winver

Network

Country Destination Domain Proto
US 8.8.8.8:53 75.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 219.74.101.95.in-addr.arpa udp
US 8.8.8.8:53 brureservtestot.cc udp
US 8.8.8.8:53 208.194.73.20.in-addr.arpa udp

Files

memory/3196-1-0x0000000000400000-0x0000000000468000-memory.dmp

memory/3196-2-0x00000000001D0000-0x00000000001D1000-memory.dmp

memory/3380-3-0x0000000000AA0000-0x0000000000AA6000-memory.dmp

memory/3380-5-0x0000000000AA0000-0x0000000000AA6000-memory.dmp

memory/1872-4-0x0000000000E90000-0x0000000000E96000-memory.dmp

memory/3196-6-0x00000000008F0000-0x00000000012F0000-memory.dmp

memory/3380-8-0x00007FFF01AED000-0x00007FFF01AEE000-memory.dmp

memory/1872-9-0x0000000077AD2000-0x0000000077AD3000-memory.dmp

memory/1872-10-0x0000000000FD0000-0x0000000000FE2000-memory.dmp

memory/3196-11-0x0000000000400000-0x0000000000468000-memory.dmp

memory/3196-12-0x00000000008F0000-0x00000000012F0000-memory.dmp

memory/2388-13-0x0000000000610000-0x0000000000616000-memory.dmp

memory/2388-14-0x0000000000610000-0x0000000000616000-memory.dmp

memory/2424-15-0x0000000000C90000-0x0000000000C96000-memory.dmp

memory/2484-16-0x00000000004A0000-0x00000000004A6000-memory.dmp

memory/2424-17-0x0000000000C90000-0x0000000000C96000-memory.dmp

memory/2484-19-0x00000000004A0000-0x00000000004A6000-memory.dmp