Malware Analysis Report

2024-09-09 17:08

Sample ID 240717-blws4ayhll
Target 4341e44b77e208e219ab9e0cb5131750N.exe
SHA256 25c3eb391ee1b30c801ccdf331c9ff3e012dbc780c1de178f7f81d2b69d555d8
Tags
tinba banker persistence trojan upx
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

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

25c3eb391ee1b30c801ccdf331c9ff3e012dbc780c1de178f7f81d2b69d555d8

Threat Level: Known bad

The file 4341e44b77e208e219ab9e0cb5131750N.exe 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 UnmapMainImage

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

MITRE ATT&CK Matrix V13

Analysis: static1

Detonation Overview

Reported

2024-07-17 01:14

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

2024-07-17 01:14

Reported

2024-07-17 01:16

Platform

win10v2004-20240709-en

Max time kernel

118s

Max time network

100s

Command Line

sihost.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-1-5-21-2636447293-1148739154-93880854-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\22F5BEEF = "C:\\Users\\Admin\\AppData\\Roaming\\22F5BEEF\\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\system32\sihost.exe

sihost.exe

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\4341e44b77e208e219ab9e0cb5131750N.exe

"C:\Users\Admin\AppData\Local\Temp\4341e44b77e208e219ab9e0cb5131750N.exe"

C:\Windows\SysWOW64\winver.exe

winver

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 4232 -ip 4232

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4232 -s 352

Network

Country Destination Domain Proto
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 71.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 192.142.123.92.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 10.28.171.150.in-addr.arpa udp

Files

memory/3192-0-0x0000000000400000-0x000000000041D000-memory.dmp

memory/3192-1-0x00000000005C0000-0x00000000005C1000-memory.dmp

memory/3396-2-0x0000000001040000-0x0000000001046000-memory.dmp

memory/3396-3-0x0000000001040000-0x0000000001046000-memory.dmp

memory/3192-4-0x0000000002340000-0x0000000002D40000-memory.dmp

memory/3396-7-0x00007FF930C6D000-0x00007FF930C6E000-memory.dmp

memory/4232-6-0x00000000770A2000-0x00000000770A3000-memory.dmp

memory/4232-5-0x00000000014B0000-0x00000000014B6000-memory.dmp

memory/4232-8-0x00007FF930BD0000-0x00007FF930DC5000-memory.dmp

memory/3192-9-0x0000000000400000-0x000000000041D000-memory.dmp

memory/3192-10-0x0000000002340000-0x0000000002D40000-memory.dmp

memory/3396-11-0x00007FF930E00000-0x00007FF930E01000-memory.dmp

memory/2556-15-0x00000000005F0000-0x00000000005F6000-memory.dmp

memory/4232-16-0x00000000014B0000-0x00000000014B6000-memory.dmp

memory/2556-18-0x00007FF930DF0000-0x00007FF930DF1000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-17 01:14

Reported

2024-07-17 01:16

Platform

win7-20240704-en

Max time kernel

119s

Max time network

123s

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-1-5-21-2212144002-1172735686-1556890956-1000\Software\Microsoft\Windows\CurrentVersion\Run\823BD921 = "C:\\Users\\Admin\\AppData\\Roaming\\823BD921\\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

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:\Windows\system32\DllHost.exe

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

C:\Users\Admin\AppData\Local\Temp\4341e44b77e208e219ab9e0cb5131750N.exe

"C:\Users\Admin\AppData\Local\Temp\4341e44b77e208e219ab9e0cb5131750N.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/1916-0-0x0000000000400000-0x000000000041D000-memory.dmp

memory/1916-1-0x0000000000020000-0x0000000000021000-memory.dmp

memory/1200-4-0x00000000029D0000-0x00000000029D6000-memory.dmp

memory/1200-3-0x00000000029D0000-0x00000000029D6000-memory.dmp

memory/1200-2-0x00000000029D0000-0x00000000029D6000-memory.dmp

memory/1200-10-0x00000000770A1000-0x00000000770A2000-memory.dmp

memory/2144-11-0x0000000077050000-0x00000000771F9000-memory.dmp

memory/2144-9-0x000000007724F000-0x0000000077251000-memory.dmp

memory/2144-8-0x000000007724F000-0x0000000077250000-memory.dmp

memory/2144-7-0x0000000077250000-0x0000000077251000-memory.dmp

memory/2144-6-0x0000000000090000-0x0000000000096000-memory.dmp

memory/1916-5-0x0000000001BE0000-0x00000000025E0000-memory.dmp

memory/1916-13-0x0000000000400000-0x000000000041D000-memory.dmp

memory/1916-14-0x0000000001BE0000-0x00000000025E0000-memory.dmp

memory/1196-25-0x0000000001D10000-0x0000000001D16000-memory.dmp

memory/1200-22-0x0000000002770000-0x0000000002776000-memory.dmp

memory/1176-20-0x0000000001AC0000-0x0000000001AC6000-memory.dmp

memory/1196-26-0x0000000001D10000-0x0000000001D16000-memory.dmp

memory/1200-31-0x0000000002770000-0x0000000002776000-memory.dmp

memory/1176-30-0x0000000001AC0000-0x0000000001AC6000-memory.dmp

memory/1104-29-0x00000000770A1000-0x00000000770A2000-memory.dmp

memory/1104-28-0x0000000001CA0000-0x0000000001CA6000-memory.dmp

memory/1196-27-0x00000000770A1000-0x00000000770A2000-memory.dmp

memory/2144-36-0x0000000000090000-0x0000000000096000-memory.dmp