Malware Analysis Report

2025-01-19 07:23

Sample ID 231220-rmyxvahdgm
Target c4d67b07ce045789480d6b4f0e3cb9af
SHA256 159ad1a8ae7359411baa3009169648f7aee0804f63237211e588684a7671a0bd
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: 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

159ad1a8ae7359411baa3009169648f7aee0804f63237211e588684a7671a0bd

Threat Level: Known bad

The file c4d67b07ce045789480d6b4f0e3cb9af 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

Program crash

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious use of FindShellTrayWindow

Suspicious use of UnmapMainImage

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-20 14:19

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: behavioral2

Detonation Overview

Submitted

2023-12-20 14:19

Reported

2023-12-20 18:17

Platform

win10v2004-20231215-en

Max time kernel

149s

Max time network

148s

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-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\7763CC6A = "C:\\Users\\Admin\\AppData\\Roaming\\7763CC6A\\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\c4d67b07ce045789480d6b4f0e3cb9af.exe

"C:\Users\Admin\AppData\Local\Temp\c4d67b07ce045789480d6b4f0e3cb9af.exe"

C:\Windows\SysWOW64\winver.exe

winver

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 2156 -ip 2156

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2156 -s 352

Network

Country Destination Domain Proto
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 206.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 16.53.126.40.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 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 204.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 192.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 26.178.89.13.in-addr.arpa udp

Files

memory/808-0-0x0000000000400000-0x0000000000417000-memory.dmp

memory/808-1-0x00000000004B0000-0x00000000004B1000-memory.dmp

memory/3520-2-0x0000000000ED0000-0x0000000000ED6000-memory.dmp

memory/808-4-0x0000000002340000-0x0000000002D40000-memory.dmp

memory/2156-5-0x0000000000780000-0x0000000000786000-memory.dmp

memory/3520-3-0x0000000000ED0000-0x0000000000ED6000-memory.dmp

memory/2156-6-0x00000000775B2000-0x00000000775B3000-memory.dmp

memory/3520-7-0x00007FFC0EC2D000-0x00007FFC0EC2E000-memory.dmp

memory/2156-8-0x0000000000BE0000-0x0000000000BF2000-memory.dmp

memory/808-9-0x0000000000400000-0x0000000000417000-memory.dmp

memory/808-10-0x0000000002340000-0x0000000002D40000-memory.dmp

memory/2504-14-0x00000000007E0000-0x00000000007E6000-memory.dmp

memory/2156-15-0x0000000000780000-0x0000000000786000-memory.dmp

memory/3520-17-0x00007FFC0EDC0000-0x00007FFC0EDC1000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-20 14:19

Reported

2023-12-20 18:17

Platform

win7-20231215-en

Max time kernel

150s

Max time network

151s

Command Line

"taskhost.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-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\C615AABA = "C:\\Users\\Admin\\AppData\\Roaming\\C615AABA\\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\system32\taskhost.exe

"taskhost.exe"

C:\Windows\system32\Dwm.exe

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

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\c4d67b07ce045789480d6b4f0e3cb9af.exe

"C:\Users\Admin\AppData\Local\Temp\c4d67b07ce045789480d6b4f0e3cb9af.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

Files

memory/2456-0-0x0000000000400000-0x0000000000417000-memory.dmp

memory/2456-1-0x0000000000020000-0x0000000000021000-memory.dmp

memory/2456-2-0x0000000001CC0000-0x00000000026C0000-memory.dmp

memory/1204-4-0x0000000001DA0000-0x0000000001DA6000-memory.dmp

memory/1204-11-0x0000000077B31000-0x0000000077B32000-memory.dmp

memory/2000-10-0x0000000077CDF000-0x0000000077CE1000-memory.dmp

memory/2000-9-0x0000000077CDF000-0x0000000077CE0000-memory.dmp

memory/2000-8-0x0000000077CE0000-0x0000000077CE1000-memory.dmp

memory/2000-7-0x0000000000100000-0x0000000000106000-memory.dmp

memory/2000-6-0x0000000000BC0000-0x0000000000BD6000-memory.dmp

memory/1204-5-0x0000000001DA0000-0x0000000001DA6000-memory.dmp

memory/1204-3-0x0000000001DA0000-0x0000000001DA6000-memory.dmp

memory/2456-12-0x0000000000400000-0x0000000000417000-memory.dmp

memory/2456-13-0x0000000001CC0000-0x00000000026C0000-memory.dmp

memory/2000-16-0x0000000000180000-0x0000000000181000-memory.dmp

memory/1164-20-0x00000000019C0000-0x00000000019C6000-memory.dmp

memory/1104-24-0x0000000077B31000-0x0000000077B32000-memory.dmp

memory/1204-26-0x0000000001D80000-0x0000000001D86000-memory.dmp

memory/1164-25-0x00000000019C0000-0x00000000019C6000-memory.dmp

memory/1204-23-0x0000000001D80000-0x0000000001D86000-memory.dmp

memory/1104-22-0x0000000001B40000-0x0000000001B46000-memory.dmp

memory/2000-30-0x0000000000100000-0x0000000000106000-memory.dmp

memory/2000-31-0x0000000000190000-0x0000000000191000-memory.dmp