Malware Analysis Report

2024-09-09 17:02

Sample ID 240620-fqw2wavdnp
Target ecd3cef94588edc92a329889d6486d8834d113dd9e8c354da8a808ed7abc8e7d
SHA256 ecd3cef94588edc92a329889d6486d8834d113dd9e8c354da8a808ed7abc8e7d
Tags
upx tinba banker persistence trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

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

ecd3cef94588edc92a329889d6486d8834d113dd9e8c354da8a808ed7abc8e7d

Threat Level: Known bad

The file ecd3cef94588edc92a329889d6486d8834d113dd9e8c354da8a808ed7abc8e7d was found to be: Known bad.

Malicious Activity Summary

upx tinba banker persistence trojan

UPX dump on OEP (original entry point)

Tinba / TinyBanker

UPX dump on OEP (original entry point)

UPX packed file

Adds Run key to start application

Unsigned PE

Program crash

Suspicious behavior: EnumeratesProcesses

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious use of UnmapMainImage

MITRE ATT&CK Matrix V13

Analysis: static1

Detonation Overview

Reported

2024-06-20 05:05

Signatures

UPX dump on OEP (original entry point)

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

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

2024-06-20 05:05

Reported

2024-06-20 05:07

Platform

win7-20240611-en

Max time kernel

150s

Max time network

154s

Command Line

"taskhost.exe"

Signatures

Tinba / TinyBanker

trojan banker tinba

UPX dump on OEP (original entry point)

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

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-1-5-21-39690363-730359138-1046745555-1000\Software\Microsoft\Windows\CurrentVersion\Run\CDD4AFD7 = "C:\\Users\\Admin\\AppData\\Roaming\\CDD4AFD7\\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\ecd3cef94588edc92a329889d6486d8834d113dd9e8c354da8a808ed7abc8e7d.exe

"C:\Users\Admin\AppData\Local\Temp\ecd3cef94588edc92a329889d6486d8834d113dd9e8c354da8a808ed7abc8e7d.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/2248-0-0x0000000000400000-0x000000000041D000-memory.dmp

memory/2248-1-0x0000000000020000-0x0000000000021000-memory.dmp

memory/1308-3-0x0000000002790000-0x0000000002796000-memory.dmp

memory/1308-2-0x0000000002790000-0x0000000002796000-memory.dmp

memory/1308-4-0x0000000002790000-0x0000000002796000-memory.dmp

memory/2248-5-0x0000000001C10000-0x0000000002610000-memory.dmp

memory/1420-11-0x00000000779E0000-0x0000000077B89000-memory.dmp

memory/1308-10-0x0000000077A31000-0x0000000077A32000-memory.dmp

memory/1420-9-0x0000000077BDF000-0x0000000077BE1000-memory.dmp

memory/1420-8-0x0000000077BDF000-0x0000000077BE0000-memory.dmp

memory/1420-7-0x0000000077BE0000-0x0000000077BE1000-memory.dmp

memory/1420-6-0x0000000000100000-0x0000000000106000-memory.dmp

memory/2248-12-0x0000000000400000-0x000000000041D000-memory.dmp

memory/2248-13-0x0000000001C10000-0x0000000002610000-memory.dmp

memory/1272-20-0x0000000000120000-0x0000000000126000-memory.dmp

memory/1308-22-0x0000000002740000-0x0000000002746000-memory.dmp

memory/1308-26-0x0000000002740000-0x0000000002746000-memory.dmp

memory/1272-25-0x0000000000120000-0x0000000000126000-memory.dmp

memory/1208-24-0x0000000077A31000-0x0000000077A32000-memory.dmp

memory/1208-23-0x0000000001CC0000-0x0000000001CC6000-memory.dmp

memory/1420-30-0x00000000001A0000-0x00000000001A1000-memory.dmp

memory/1420-31-0x0000000000100000-0x0000000000106000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-20 05:05

Reported

2024-06-20 05:07

Platform

win10v2004-20240508-en

Max time kernel

141s

Max time network

133s

Command Line

sihost.exe

Signatures

Tinba / TinyBanker

trojan banker tinba

UPX dump on OEP (original entry point)

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

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-1-5-21-1181767204-2009306918-3718769404-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\EC424DDB = "C:\\Users\\Admin\\AppData\\Roaming\\EC424DDB\\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
Token: SeShutdownPrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeShutdownPrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeShutdownPrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeShutdownPrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\Explorer.EXE N/A
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
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A

Suspicious use of UnmapMainImage

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

Processes

C:\Windows\system32\sihost.exe

sihost.exe

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\ecd3cef94588edc92a329889d6486d8834d113dd9e8c354da8a808ed7abc8e7d.exe

"C:\Users\Admin\AppData\Local\Temp\ecd3cef94588edc92a329889d6486d8834d113dd9e8c354da8a808ed7abc8e7d.exe"

C:\Windows\SysWOW64\winver.exe

winver

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2716 -ip 2716

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2716 -s 352

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4372,i,6576818814118437872,11004518367271063231,262144 --variations-seed-version --mojo-platform-channel-handle=1428 /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 97.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 20.160.190.20.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 8.8.8.8:53 140.71.91.104.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp

Files

memory/1720-0-0x0000000000400000-0x000000000041D000-memory.dmp

memory/1720-1-0x0000000000680000-0x0000000000681000-memory.dmp

memory/3544-3-0x0000000000A80000-0x0000000000A86000-memory.dmp

memory/3544-2-0x0000000000A80000-0x0000000000A86000-memory.dmp

memory/1720-4-0x0000000002180000-0x0000000002B80000-memory.dmp

memory/3544-6-0x00007FFEBB34D000-0x00007FFEBB34E000-memory.dmp

memory/2716-5-0x00000000775E2000-0x00000000775E3000-memory.dmp

memory/2716-7-0x00007FFEBB2B0000-0x00007FFEBB4A5000-memory.dmp

memory/3544-8-0x00007FFEBB4E0000-0x00007FFEBB4E1000-memory.dmp

memory/1720-10-0x0000000000400000-0x000000000041D000-memory.dmp

memory/1720-11-0x0000000002180000-0x0000000002B80000-memory.dmp

memory/3544-12-0x00007FFEBB4C0000-0x00007FFEBB4C1000-memory.dmp

memory/2716-14-0x0000000001330000-0x0000000001336000-memory.dmp

memory/2464-16-0x0000000000710000-0x0000000000716000-memory.dmp

memory/2716-17-0x0000000001330000-0x0000000001336000-memory.dmp