Malware Analysis Report

2025-01-19 07:23

Sample ID 231219-1w57ysgce8
Target afa43d391414827a0e89aef57ec79ece
SHA256 e102de0d85e74a9466773d9e97871d1afcc39df16396afc24e778d301bee6a78
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: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

e102de0d85e74a9466773d9e97871d1afcc39df16396afc24e778d301bee6a78

Threat Level: Known bad

The file afa43d391414827a0e89aef57ec79ece was found to be: Known bad.

Malicious Activity Summary

tinba banker persistence trojan

Tinba / TinyBanker

Adds Run key to start application

Program crash

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of UnmapMainImage

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-19 22:00

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-19 22:00

Reported

2023-12-20 19:06

Platform

win10v2004-20231215-en

Max time kernel

149s

Max time network

153s

Command Line

C:\Windows\Explorer.EXE

Signatures

Tinba / TinyBanker

trojan banker tinba

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\C4577B62 = "C:\\Users\\Admin\\AppData\\Roaming\\C4577B62\\bin.exe" C:\Windows\SysWOW64\winver.exe N/A

Program crash

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

Description Indicator Process Target
Token: SeShutdownPrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeCreatePagefilePrivilege 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 UnmapMainImage

Description Indicator Process Target
N/A N/A C:\Windows\Explorer.EXE N/A

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Windows\system32\sihost.exe

sihost.exe

C:\Users\Admin\AppData\Local\Temp\afa43d391414827a0e89aef57ec79ece.exe

"C:\Users\Admin\AppData\Local\Temp\afa43d391414827a0e89aef57ec79ece.exe"

C:\Windows\SysWOW64\winver.exe

winver

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 2124 -ip 2124

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2124 -s 352

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 185.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 148.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 4.181.190.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 79.121.231.20.in-addr.arpa udp

Files

memory/2852-0-0x00000000005E0000-0x00000000005E1000-memory.dmp

memory/3456-1-0x0000000002650000-0x0000000002656000-memory.dmp

memory/3456-2-0x0000000002650000-0x0000000002656000-memory.dmp

memory/2852-3-0x0000000002580000-0x0000000002F80000-memory.dmp

memory/2124-6-0x00000000027A0000-0x00000000027A6000-memory.dmp

memory/3456-5-0x00007FF837CAD000-0x00007FF837CAE000-memory.dmp

memory/2124-4-0x0000000077222000-0x0000000077223000-memory.dmp

memory/3456-7-0x00007FF837E40000-0x00007FF837E41000-memory.dmp

memory/2852-8-0x0000000000400000-0x0000000000416000-memory.dmp

memory/2852-9-0x0000000002580000-0x0000000002F80000-memory.dmp

memory/3008-13-0x0000000000450000-0x0000000000456000-memory.dmp

memory/2124-14-0x00000000027A0000-0x00000000027A6000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-19 22:00

Reported

2023-12-20 19:06

Platform

win7-20231215-en

Max time kernel

150s

Max time network

149s

Command Line

C:\Windows\Explorer.EXE

Signatures

Tinba / TinyBanker

trojan banker tinba

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000\Software\Microsoft\Windows\CurrentVersion\Run\185F9D2B = "C:\\Users\\Admin\\AppData\\Roaming\\185F9D2B\\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 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:\Windows\system32\Dwm.exe

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

C:\Windows\system32\taskhost.exe

"taskhost.exe"

C:\Users\Admin\AppData\Local\Temp\afa43d391414827a0e89aef57ec79ece.exe

"C:\Users\Admin\AppData\Local\Temp\afa43d391414827a0e89aef57ec79ece.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

Files

memory/1212-0-0x0000000000020000-0x0000000000021000-memory.dmp

memory/1212-1-0x00000000021D0000-0x0000000002BD0000-memory.dmp

memory/1200-2-0x0000000002A80000-0x0000000002A86000-memory.dmp

memory/1200-3-0x0000000002A80000-0x0000000002A86000-memory.dmp

memory/1244-4-0x00000000007F0000-0x0000000000806000-memory.dmp

memory/1200-6-0x0000000002A80000-0x0000000002A86000-memory.dmp

memory/1244-5-0x0000000000140000-0x0000000000146000-memory.dmp

memory/1244-8-0x0000000076F9F000-0x0000000076FA1000-memory.dmp

memory/1244-9-0x0000000076FA0000-0x0000000076FA1000-memory.dmp

memory/1244-7-0x0000000076F9F000-0x0000000076FA0000-memory.dmp

memory/1200-10-0x0000000076DF1000-0x0000000076DF2000-memory.dmp

memory/1212-11-0x0000000000400000-0x0000000000416000-memory.dmp

memory/1212-12-0x00000000021D0000-0x0000000002BD0000-memory.dmp

memory/1244-15-0x0000000000180000-0x0000000000181000-memory.dmp

memory/1104-20-0x00000000001E0000-0x00000000001E6000-memory.dmp

memory/1104-22-0x0000000076DF1000-0x0000000076DF2000-memory.dmp

memory/1168-21-0x0000000000130000-0x0000000000136000-memory.dmp

memory/1200-24-0x0000000002A30000-0x0000000002A36000-memory.dmp

memory/1168-25-0x0000000000130000-0x0000000000136000-memory.dmp

memory/1200-26-0x0000000002A30000-0x0000000002A36000-memory.dmp

memory/1244-30-0x0000000000140000-0x0000000000146000-memory.dmp

memory/1244-31-0x0000000000190000-0x0000000000191000-memory.dmp