Malware Analysis Report

2024-09-09 17:09

Sample ID 240613-31ksxszfqk
Target 6ce74ceeb4a121b9c8d9ef84e5d3579d8c45ae904b5bb95c80b4d32f864d07a3
SHA256 6ce74ceeb4a121b9c8d9ef84e5d3579d8c45ae904b5bb95c80b4d32f864d07a3
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

6ce74ceeb4a121b9c8d9ef84e5d3579d8c45ae904b5bb95c80b4d32f864d07a3

Threat Level: Known bad

The file 6ce74ceeb4a121b9c8d9ef84e5d3579d8c45ae904b5bb95c80b4d32f864d07a3 was found to be: Known bad.

Malicious Activity Summary

upx tinba banker persistence trojan

Tinba / TinyBanker

UPX dump on OEP (original entry point)

UPX dump on OEP (original entry point)

UPX packed file

Adds Run key to start application

Unsigned PE

Program crash

Suspicious use of AdjustPrivilegeToken

Suspicious use of UnmapMainImage

Suspicious use of SendNotifyMessage

Suspicious use of FindShellTrayWindow

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK Matrix V13

Analysis: static1

Detonation Overview

Reported

2024-06-13 23:58

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

2024-06-13 23:58

Reported

2024-06-14 00:01

Platform

win7-20240221-en

Max time kernel

149s

Max time network

149s

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-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows\CurrentVersion\Run\4B1FE9C9 = "C:\\Users\\Admin\\AppData\\Roaming\\4B1FE9C9\\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
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A

Suspicious use of SendNotifyMessage

Description Indicator Process Target
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.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\6ce74ceeb4a121b9c8d9ef84e5d3579d8c45ae904b5bb95c80b4d32f864d07a3.exe

"C:\Users\Admin\AppData\Local\Temp\6ce74ceeb4a121b9c8d9ef84e5d3579d8c45ae904b5bb95c80b4d32f864d07a3.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/1848-0-0x0000000000400000-0x000000000041D000-memory.dmp

memory/1848-1-0x0000000000020000-0x0000000000021000-memory.dmp

memory/1192-4-0x00000000024D0000-0x00000000024D6000-memory.dmp

memory/1192-3-0x00000000024D0000-0x00000000024D6000-memory.dmp

memory/1192-2-0x00000000024D0000-0x00000000024D6000-memory.dmp

memory/1752-11-0x0000000077240000-0x00000000773E9000-memory.dmp

memory/1192-10-0x0000000077291000-0x0000000077292000-memory.dmp

memory/1752-9-0x000000007743F000-0x0000000077441000-memory.dmp

memory/1752-8-0x000000007743F000-0x0000000077440000-memory.dmp

memory/1752-7-0x0000000077440000-0x0000000077441000-memory.dmp

memory/1752-6-0x0000000000120000-0x0000000000126000-memory.dmp

memory/1848-5-0x0000000001DD0000-0x00000000027D0000-memory.dmp

memory/1848-12-0x0000000000400000-0x000000000041D000-memory.dmp

memory/1848-13-0x0000000001DD0000-0x00000000027D0000-memory.dmp

memory/1192-22-0x0000000002480000-0x0000000002486000-memory.dmp

memory/1152-20-0x0000000000130000-0x0000000000136000-memory.dmp

memory/1072-24-0x0000000077291000-0x0000000077292000-memory.dmp

memory/1072-23-0x0000000000390000-0x0000000000396000-memory.dmp

memory/1152-25-0x0000000000130000-0x0000000000136000-memory.dmp

memory/1192-26-0x0000000002480000-0x0000000002486000-memory.dmp

memory/1752-30-0x0000000000120000-0x0000000000126000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-13 23:58

Reported

2024-06-14 00:01

Platform

win10v2004-20240611-en

Max time kernel

146s

Max time network

132s

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-1-5-21-3665033694-1447845302-680750983-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\CA70E73B = "C:\\Users\\Admin\\AppData\\Roaming\\CA70E73B\\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

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\system32\sihost.exe

sihost.exe

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\6ce74ceeb4a121b9c8d9ef84e5d3579d8c45ae904b5bb95c80b4d32f864d07a3.exe

"C:\Users\Admin\AppData\Local\Temp\6ce74ceeb4a121b9c8d9ef84e5d3579d8c45ae904b5bb95c80b4d32f864d07a3.exe"

C:\Windows\SysWOW64\winver.exe

winver

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 --field-trial-handle=3060,i,3595107284059830391,18018199024659337217,262144 --variations-seed-version --mojo-platform-channel-handle=4308 /prefetch:8

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 384 -ip 384

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 384 -s 352

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
NL 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 73.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 97.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp

Files

memory/4544-0-0x0000000000400000-0x000000000041D000-memory.dmp

memory/4544-1-0x0000000000580000-0x0000000000581000-memory.dmp

memory/3448-3-0x0000000000950000-0x0000000000956000-memory.dmp

memory/3448-2-0x0000000000950000-0x0000000000956000-memory.dmp

memory/4544-4-0x0000000002150000-0x0000000002B50000-memory.dmp

memory/384-5-0x00000000775B2000-0x00000000775B3000-memory.dmp

memory/3448-6-0x00007FFCCF50D000-0x00007FFCCF50E000-memory.dmp

memory/384-7-0x00007FFCCF470000-0x00007FFCCF665000-memory.dmp

memory/3448-8-0x00007FFCCF6A0000-0x00007FFCCF6A1000-memory.dmp

memory/4544-10-0x0000000000400000-0x000000000041D000-memory.dmp

memory/4544-11-0x0000000002150000-0x0000000002B50000-memory.dmp

memory/384-13-0x00000000022F0000-0x00000000022F6000-memory.dmp

memory/2912-15-0x0000000000290000-0x0000000000296000-memory.dmp

memory/384-16-0x00000000022F0000-0x00000000022F6000-memory.dmp